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description Publicationkeyboard_double_arrow_right Article 2015 ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | MULTIJEDIEC| MULTIJEDIAuthors: JURGENS, DAVID ALAN; PILEHVAR, MOHAMMED TAHER; NAVIGLI, ROBERTO;JURGENS, DAVID ALAN; PILEHVAR, MOHAMMED TAHER; NAVIGLI, ROBERTO;handle: 11573/845288
Semantic similarity has typically been measured across items of approximately similar sizes. As a result, similarity measures have largely ignored the fact that different types of linguistic item can potentially have similar or even identical meanings, and therefore are designed to compare only one type of linguistic item. Furthermore, nearly all current similarity benchmarks within NLP contain pairs of approximately the same size, such as word or sentence pairs, preventing the evaluation of methods that are capable of comparing different sized items. To address this, we introduce a new semantic evaluation called cross-level semantic similarity (CLSS), which measures the degree to which the meaning of a larger linguistic item, such as a paragraph, is captured by a smaller item, such as a sentence. Our pilot CLSS task was presented as part of SemEval-2014, which attracted 19 teams who submitted 38 systems. CLSS data contains a rich mixture of pairs, spanning from paragraphs to word senses to fully evaluate similarity measures that are capable of comparing items of any type. Furthermore, data sources were drawn from diverse corpora beyond just newswire, including domain-specific texts and social media. We describe the annotation process and its challenges, including a comparison with crowdsourcing, and identify the factors that make the dataset a rigorous assessment of a method's quality. Furthermore, we examine in detail the systems participating in the SemEval task to identify the common factors associated with high performance and which aspects proved difficult to all systems. Our findings demonstrate that CLSS poses a significant challenge for similarity methods and provides clear directions for future work on universal similarity methods that can compare any pair of items.
Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La SapienzaLanguage Resources and EvaluationArticle . 2015 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu10 citations 10 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La SapienzaLanguage Resources and EvaluationArticle . 2015 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10579-015-9318-3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 Spain, ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | CollectionCareEC| CollectionCareFrasca, Francesca; Verticchio, Elena; Peiró-Vitoria, Andrea; Grinde, Andreas; Bile, Alessandro; Chimenti, Claudio; Conati Barbaro, Celia; Favero, Gabriele; Fazio, Eugenio; García Diego, Fernando Juan; Siani, Anna Maria;handle: 11573/1662550 , 10251/198610
[EN] The study of the microclimate is pivotal for the protection and conservation of cultural heritage. This paper describes specifc procedures aimed at the deployment of microclimate sensors in spaces housing collections (e.g., museums) under diferent scenarios. The decision making involves a multidisciplinary discussion among museum manager, con¿ servator and conservation scientist and implies fve steps. Since the sensor¿s deployment depends on the number of available sensors, we have identifed two possible circumstances: (a) artwork-related deployment (i.e., there are as many sensors as the number of artworks) and (b) artwork-envelope-related deployment (i.e., the number of available sensors is less than the number of artworks). The former circumstance is advisable when the artwork is often moved from a museum to another one. The latter circumstance is usually the case of permanent collections, and, according to the Museum Scenario (MS), the related procedures can be further subdivided into basic (MSI and MSII) and advanced (MSIII and MSIV). Advanced procedures are preferable over basic procedures when several time series of microcli¿ mate data have been collected for at least one calendar year in several sampling points. All these procedures make it possible to design where to deploy sensors both in the case of an initial deployment and of optimisation of already installed sensors. This research was funded by the European Union's Horizon 2020 research and innovation program under grant agreement No.814624.
Archivio della ricer... arrow_drop_down Recolector de Ciencia Abierta, RECOLECTAArticle . 2022Data sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Recolector de Ciencia Abierta, RECOLECTAArticle . 2022Data sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object 2021 ItalyPublisher:Association for the Advancement of Artificial Intelligence (AAAI) Funded by:EC | ELEXIS, EC | MOUSSEEC| ELEXIS ,EC| MOUSSEAuthors: Bevilacqua, Michele; Rexhina Blloshmi; Navigli, Roberto;Bevilacqua, Michele; Rexhina Blloshmi; Navigli, Roberto;In Text-to-AMR parsing, current state-of-the-art semantic parsers use cumbersome pipelines integrating several different modules or components, and exploit graph recategorization, i.e., a set of content-specific heuristics that are developed on the basis of the training set. However, the generalizability of graph recategorization in an out-of-distribution setting is unclear. In contrast, state-of-the-art AMR-to-Text generation, which can be seen as the inverse to parsing, is based on simpler seq2seq. In this paper, we cast Text-to-AMR and AMR-to-Text as a symmetric transduction task and show that by devising a careful graph linearization and extending a pretrained encoder-decoder model, it is possible to obtain state-of-the-art performances in both tasks using the very same seq2seq approach, i.e., SPRING (Symmetric PaRsIng aNd Generation). Our model does not require complex pipelines, nor heuristics built on heavy assumptions. In fact, we drop the need for graph recategorization, showing that this technique is actually harmful outside of the standard benchmark. Finally, we outperform the previous state of the art on the English AMR 2.0 dataset by a large margin: on Text-to-AMR we obtain an improvement of 3.6 Smatch points, while on AMR-to-Text we outperform the state of the art by 11.2 BLEU points. We release the software at github.com/SapienzaNLP/spring.
ZENODO arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La SapienzaProceedings of the AAAI Conference on Artificial IntelligenceArticle . 2021 . Peer-reviewedData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 23 citations 23 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 67visibility views 67 download downloads 39 Powered bymore_vert ZENODO arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La SapienzaProceedings of the AAAI Conference on Artificial IntelligenceArticle . 2021 . Peer-reviewedData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 ItalyPublisher:Elsevier BV Funded by:EC | MULTIJEDIEC| MULTIJEDIKrause, Sebastian; Hennig, Leonhard; MORO, ANDREA; Weissenborn, Dirk; Xu, Feiyu; Uszkoreit, Hans; NAVIGLI, Roberto;handle: 11573/960096
Recent years have seen a significant growth and increased usage of large-scale knowledge resources in both academic research and industry. We can distinguish two main types of knowledge resources: those that store factual information about entities in the form of semantic relations (e.g., Freebase), namely so-called knowledge graphs, and those that represent general linguistic knowledge (e.g., WordNet or UWN). In this article, we present a third type of knowledge resource which completes the picture by connecting the two first types. Instances of this resource are graphs of semantically-associated relations (sar-graphs), whose purpose is to link semantic relations from factual knowledge graphs with their linguistic representations in human language. We present a general method for constructing sar-graphs using a language- and relation-independent, distantly supervised approach which, apart from generic language processing tools, relies solely on the availability of a lexical semantic resource, providing sense information for words, as well as a knowledge base containing seed relation instances. Using these seeds, our method extracts, validates and merges relation-specific linguistic patterns from text to create sar-graphs. To cope with the noisily labeled data arising in a distantly supervised setting, we propose several automatic pattern confidence estimation strategies, and also show how manual supervision can be used to improve the quality of sar-graph instances. We demonstrate the applicability of our method by constructing sar-graphs for 25 semantic relations, of which we make a subset publicly available at http://sargraph.dfki.de. We believe sar-graphs will prove to be useful linguistic resources for a wide variety of natural language processing tasks, and in particular for information extraction and knowledge base population. We illustrate their usefulness with experiments in relation extraction and in computer assisted language learning.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 12 citations 12 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2021 ItalyPublisher:Association for Computational Linguistics (ACL) Funded by:EC | MOUSSEEC| MOUSSEAuthors: Procopio, Luigi; Tripodi, Rocco; Navigli, Roberto;Procopio, Luigi; Tripodi, Rocco; Navigli, Roberto;handle: 11573/1605363 , 10278/5047986
Graph-based semantic parsing aims to represent textual meaning through directed graphs. As one of the most promising general-purpose meaning representations, these structures and their parsing have gained a significant interest momentum during recent years, with several diverse formalisms being proposed. Yet, owing to this very heterogeneity, most of the research effort has focused mainly on solutions specific to a given formalism. In this work, instead, we reframe semantic parsing towards multiple formalisms as Multilingual Neural Machine Translation (MNMT), and propose SGL, a many-to-many seq2seq architecture trained with an MNMT objective. Backed by several experiments, we show that this framework is indeed effective once the learning procedure is enhanced with large parallel corpora coming from Machine Translation: we report competitive performances on AMR and UCCA parsing, especially once paired with pre-trained architectures. Furthermore, we find that models trained under this configuration scale remarkably well to tasks such as cross-lingual AMR parsing: SGL outperforms all its competitors by a large margin without even explicitly seeing non-English to AMR examples at training time and, once these examples are included as well, sets an unprecedented state of the art in this task. We release our code and our models for research purposes at https://github.com/SapienzaNLP/sgl.
Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università degli Studi di Venezia Ca' Foscari; Archivio della ricerca- Università di Roma La Sapienza; Archivio istituzionale della ricerca - Alma Mater Studiorum Università di BolognaOther literature type . Conference object . 2021 . Peer-reviewedArchivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routeshybrid 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università degli Studi di Venezia Ca' Foscari; Archivio della ricerca- Università di Roma La Sapienza; Archivio istituzionale della ricerca - Alma Mater Studiorum Università di BolognaOther literature type . Conference object . 2021 . Peer-reviewedArchivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2020 ItalyPublisher:Elsevier BV Funded by:EC | SUCCESSEC| SUCCESSSimona Arrighi; Adriana Moroni; Laura Tassoni; Francesco Boschin; Federica Badino; Eugenio Bortolini; Paolo Boscato; Jacopo Crezzini; Carla Figus; Manuela Forte; Federico Lugli; Giulia Marciani; Gregorio Oxilia; Fabio Negrino; Julien Riel-Salvatore; Matteo Romandini; Marco Peresani; Enza Elena Spinapolice; Annamaria Ronchitelli; Stefano Benazzi;The arrival of Modern Humans (MHs) in Europe between 50 ka and 36 ka coincides with significant changes in human behaviour, regarding the production of tools, the exploitation of resources and the systematic use of ornaments and colouring substances. The emergence of the so-called modern behaviours is usually associated with MHs, although in these last decades findings relating to symbolic thinking of pre-Sapiens groups have been claimed. In this paper we present a synthesis of the Italian evidence concerning bone manufacturing and the use of ornaments and pigments in the time span encompassing the demise of Neandertals and their replacement by MHs. Current data show that Mousterian bone tools are mostly obtained from bone fragments used as is. Conversely an organized production of fine shaped bone tools is characteristic of the Uluzzian and the Protoaurignacian, when the complexity inherent in the manufacturing processes suggests that bone artefacts are not to be considered as expedient resources. Some traces of symbolic activities are associated to Neandertals in Northern Italy. Ornaments (mostly tusk shells) and pigments used for decorative purposes are well recorded during the Uluzzian. Their features and distribution witness to an intriguing cultural homogeneity within this technocomplex. The Protoaurignacian is characterized by a wider archaeological evidence, consisting of personal ornaments (mostly pierced gastropods), pigments and artistic items.
Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università di Ferrara; Archivio istituzionale della ricerca - Università di Genova; Usiena air - Università di Siena; Quaternary InternationalOther literature type . Article . 2020 . 2019 . Peer-reviewedLicense: Elsevier TDMArchivio della ricerca- Università di Roma La SapienzaArticle . 2019Data sources: Archivio della ricerca- Università di Roma La Sapienzahttps://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 26 citations 26 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università di Ferrara; Archivio istituzionale della ricerca - Università di Genova; Usiena air - Università di Siena; Quaternary InternationalOther literature type . Article . 2020 . 2019 . Peer-reviewedLicense: Elsevier TDMArchivio della ricerca- Università di Roma La SapienzaArticle . 2019Data sources: Archivio della ricerca- Università di Roma La Sapienzahttps://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.quaint.2019.11.016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type 2019 Italy, FrancePublisher:IOP Publishing Funded by:EC | EuroCirColEC| EuroCirColBruce, Roderik; Abramov, Andrey; Bertarelli, Alessandro; Besana, Maria Ilaria; Carra, Federico; Cerutti, Francesco; Faus-Golfe, Angeles; Fiascaris, Maria; Gobbi, Giorgia; Krainer, Alexander; Lechner, Anton; Mereghetti, Alessio; Mirarchi, Daniele; Molson, James; Pasquali, Michele; Redaelli, Stefano; Schulte, Daniel; Serluca, Maurizio; Skordis, Eleftherios; Varasteh, Mohammad;The Future Circular Collider (FCC-hh) is being designed as a 100 km ring that should collide 50 TeV proton beams. At 8.3 GJ, its stored beam energy will be a factor 28 higher than what has been achieved in the Large Hadron Collider, which has the highest stored beam energy among the colliders built so far. This puts unprecedented demands on the control of beam losses and collimation, since even a tiny beam loss risks quenching superconducting magnets. We present in this article the design of the FCC-hh collimation system and study the beam cleaning through simulations of tracking, energy deposition, and thermo-mechanical response. We investigate the collimation performance for design beam loss scenarios and potential bottlenecks are highlighted. Proceedings of the 10th Int. Particle Accelerator Conf., IPAC2019, Melbourne, Australia
Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La Sapienza; Journal of Physics : Conference SeriesArticle . Conference object . 2019 . Peer-reviewedLicense: CC BYArchivio della ricerca- Università di Roma La SapienzaConference object . 2019Data sources: Archivio della ricerca- Università di Roma La SapienzaMémoires en Sciences de l'Information et de la CommunicationConference object . 2019HAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2019add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesgold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La Sapienza; Journal of Physics : Conference SeriesArticle . Conference object . 2019 . Peer-reviewedLicense: CC BYArchivio della ricerca- Università di Roma La SapienzaConference object . 2019Data sources: Archivio della ricerca- Università di Roma La SapienzaMémoires en Sciences de l'Information et de la CommunicationConference object . 2019HAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2019add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 France, ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | ROMPEC| ROMPC. Pepe; Laura Sadori; Valerie Andrieu-Ponel; Ferréol Salomon; Jean-Philippe Goiran;handle: 11573/925252
Pollen and non pollen palynomorph analyseswere carried out in a sediment core (MO2) drilledin the southern lobe of a palaeomeander, Fiume Morto(Dead River), in the Tiber delta area, near AncientOstia (central Italy). Since the Roman period, theTiber River flowed close to Ancient Ostia and itssaltworks, Salinae Ostiensis. The Tiber meander wascut off during the Tiber River flood of 1557 AD andtransformed into an oxbow lake. During the nineteenthcentury the Fiume Morto pond was reclaimed and atpresent the area is about 3 km distant from the presentshoreline and intensely transformed by human settlements.According to radiocarbon dates, the pollenrecord, not continuous, spans from the fourth centuryBC to the nineteenth century AD. It shows first ariverine phase before the meander cut off of sixteenthcentury AD and probably only the last centuries BCwere preserved from erosion. The river deposits recordriparian vegetation (mainly tamarisk and alder) withmesophilous (mainly deciduous oaks) and Mediterranean(mainly evergreen oaks, heather and olive tree)elements. The human presence is clear, probablyrelated to the development of Ancient Ostia andevidenced by synanthropic taxa. The second phasecorresponds to the oxbow lake formed after themeander cut off. Several peaks of pine pollen aretentatively ascribed to Tiber flood events: the first peakis found just in correspondence with the meander cutoff at 1557 AD. The numerous floods we interpret inthe following part of the diagram could be linked to theincrease in extreme events and precipitation thatoccurred during the Little Ice Age. The last phase, inwhich freshwater plants are present and chenopodsdecrease, shows the saltworks abandonment thatoccurred in nineteenth century. This study turned outto be of key relevance to reconstruct the palaeoenvironmentalevolution of the ancient Holocene Tibermeander during the last two and a half millennia. International audience
Mémoires en Sciences... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Mémoires en Sciences... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2018 Italy, Serbia, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | MESO-NEO TECHNOLOGY, EC | HIDDEN FOODS, NSF | First Farmers in Southeas...EC| MESO-NEO TECHNOLOGY ,EC| HIDDEN FOODS ,NSF| First Farmers in Southeast Europe: Isotopic Evidence for Human MigrationDusan Boric; Thomas Higham; Emanuela Cristiani; Vesna Dimitrijević; Olaf Nehlich; Seren Griffiths; Craig Alexander; Bojana Mihailović; Dragana Filipović; Ethel Allué; Michael Buckley;AbstractThe archaeological site of Lepenski Vir is widely known after its remarkable stone art sculptures that represent a unique and unprecedented case of Holocene hunter-gatherer creativity. These artworks were found largely associated with equally unique trapezoidal limestone building floors around their centrally located rectangular stone-lined hearths. A debate has raged since the discovery of the site about the chronological place of various discovered features. While over years different views from that of the excavator about the stratigraphy and chronology of the site have been put forward, some major disagreements about the chronological position of the features that make this site a key point of reference in European Prehistory persist. Despite challenges of re-analyzing the site’s stratigraphy from the original excavation records, taphonomic problems, and issues of reservoir offsets when providing radiocarbon measurements on human and dog bones, our targeted AMS (Accelerator Mass Spectrometry) dating of various contexts from this site with the application of Bayesian statistical modelling allows us to propose with confidence a new and sound chronological framework and provide formal estimates for several key developments represented in the archaeological record of Lepenski Vir that help us in understanding the transition of last foragers to first farmers in southeast Europe as a whole.
Archivio della ricer... arrow_drop_down REFF - University of Belgrade - Faculty of PhilosophyArticle . 2018License: CC BYData sources: REFF - University of Belgrade - Faculty of PhilosophyArchivio della ricerca- Università di Roma La SapienzaArticle . 2018Data sources: Archivio della ricerca- Università di Roma La SapienzaThe University of Manchester - Institutional RepositoryArticle . 2018Data sources: The University of Manchester - Institutional Repositoryadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-018-31884-7&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 4visibility views 4 download downloads 27 Powered bymore_vert Archivio della ricer... arrow_drop_down REFF - University of Belgrade - Faculty of PhilosophyArticle . 2018License: CC BYData sources: REFF - University of Belgrade - Faculty of PhilosophyArchivio della ricerca- Università di Roma La SapienzaArticle . 2018Data sources: Archivio della ricerca- Università di Roma La SapienzaThe University of Manchester - Institutional RepositoryArticle . 2018Data sources: The University of Manchester - Institutional Repositoryadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 Italy EnglishPublisher:Bancaria editrice Funded by:EC | PERCEPTIONSEC| PERCEPTIONSAuthors: Ambrosetti, Elena; Miccoli, Sara; Strangio, Donatella;Ambrosetti, Elena; Miccoli, Sara; Strangio, Donatella;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______3686::bebf428b58a2f80c77d4678aa39d0c83&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______3686::bebf428b58a2f80c77d4678aa39d0c83&type=result"></script>'); --> </script>
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description Publicationkeyboard_double_arrow_right Article 2015 ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | MULTIJEDIEC| MULTIJEDIAuthors: JURGENS, DAVID ALAN; PILEHVAR, MOHAMMED TAHER; NAVIGLI, ROBERTO;JURGENS, DAVID ALAN; PILEHVAR, MOHAMMED TAHER; NAVIGLI, ROBERTO;handle: 11573/845288
Semantic similarity has typically been measured across items of approximately similar sizes. As a result, similarity measures have largely ignored the fact that different types of linguistic item can potentially have similar or even identical meanings, and therefore are designed to compare only one type of linguistic item. Furthermore, nearly all current similarity benchmarks within NLP contain pairs of approximately the same size, such as word or sentence pairs, preventing the evaluation of methods that are capable of comparing different sized items. To address this, we introduce a new semantic evaluation called cross-level semantic similarity (CLSS), which measures the degree to which the meaning of a larger linguistic item, such as a paragraph, is captured by a smaller item, such as a sentence. Our pilot CLSS task was presented as part of SemEval-2014, which attracted 19 teams who submitted 38 systems. CLSS data contains a rich mixture of pairs, spanning from paragraphs to word senses to fully evaluate similarity measures that are capable of comparing items of any type. Furthermore, data sources were drawn from diverse corpora beyond just newswire, including domain-specific texts and social media. We describe the annotation process and its challenges, including a comparison with crowdsourcing, and identify the factors that make the dataset a rigorous assessment of a method's quality. Furthermore, we examine in detail the systems participating in the SemEval task to identify the common factors associated with high performance and which aspects proved difficult to all systems. Our findings demonstrate that CLSS poses a significant challenge for similarity methods and provides clear directions for future work on universal similarity methods that can compare any pair of items.
Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La SapienzaLanguage Resources and EvaluationArticle . 2015 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10579-015-9318-3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu10 citations 10 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La SapienzaLanguage Resources and EvaluationArticle . 2015 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10579-015-9318-3&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2022 Spain, ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | CollectionCareEC| CollectionCareFrasca, Francesca; Verticchio, Elena; Peiró-Vitoria, Andrea; Grinde, Andreas; Bile, Alessandro; Chimenti, Claudio; Conati Barbaro, Celia; Favero, Gabriele; Fazio, Eugenio; García Diego, Fernando Juan; Siani, Anna Maria;handle: 11573/1662550 , 10251/198610
[EN] The study of the microclimate is pivotal for the protection and conservation of cultural heritage. This paper describes specifc procedures aimed at the deployment of microclimate sensors in spaces housing collections (e.g., museums) under diferent scenarios. The decision making involves a multidisciplinary discussion among museum manager, con¿ servator and conservation scientist and implies fve steps. Since the sensor¿s deployment depends on the number of available sensors, we have identifed two possible circumstances: (a) artwork-related deployment (i.e., there are as many sensors as the number of artworks) and (b) artwork-envelope-related deployment (i.e., the number of available sensors is less than the number of artworks). The former circumstance is advisable when the artwork is often moved from a museum to another one. The latter circumstance is usually the case of permanent collections, and, according to the Museum Scenario (MS), the related procedures can be further subdivided into basic (MSI and MSII) and advanced (MSIII and MSIV). Advanced procedures are preferable over basic procedures when several time series of microcli¿ mate data have been collected for at least one calendar year in several sampling points. All these procedures make it possible to design where to deploy sensors both in the case of an initial deployment and of optimisation of already installed sensors. This research was funded by the European Union's Horizon 2020 research and innovation program under grant agreement No.814624.
Archivio della ricer... arrow_drop_down Recolector de Ciencia Abierta, RECOLECTAArticle . 2022Data sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Recolector de Ciencia Abierta, RECOLECTAArticle . 2022Data sources: Recolector de Ciencia Abierta, RECOLECTAadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1186/s40494-022-00831-1&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Conference object 2021 ItalyPublisher:Association for the Advancement of Artificial Intelligence (AAAI) Funded by:EC | ELEXIS, EC | MOUSSEEC| ELEXIS ,EC| MOUSSEAuthors: Bevilacqua, Michele; Rexhina Blloshmi; Navigli, Roberto;Bevilacqua, Michele; Rexhina Blloshmi; Navigli, Roberto;In Text-to-AMR parsing, current state-of-the-art semantic parsers use cumbersome pipelines integrating several different modules or components, and exploit graph recategorization, i.e., a set of content-specific heuristics that are developed on the basis of the training set. However, the generalizability of graph recategorization in an out-of-distribution setting is unclear. In contrast, state-of-the-art AMR-to-Text generation, which can be seen as the inverse to parsing, is based on simpler seq2seq. In this paper, we cast Text-to-AMR and AMR-to-Text as a symmetric transduction task and show that by devising a careful graph linearization and extending a pretrained encoder-decoder model, it is possible to obtain state-of-the-art performances in both tasks using the very same seq2seq approach, i.e., SPRING (Symmetric PaRsIng aNd Generation). Our model does not require complex pipelines, nor heuristics built on heavy assumptions. In fact, we drop the need for graph recategorization, showing that this technique is actually harmful outside of the standard benchmark. Finally, we outperform the previous state of the art on the English AMR 2.0 dataset by a large margin: on Text-to-AMR we obtain an improvement of 3.6 Smatch points, while on AMR-to-Text we outperform the state of the art by 11.2 BLEU points. We release the software at github.com/SapienzaNLP/spring.
ZENODO arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La SapienzaProceedings of the AAAI Conference on Artificial IntelligenceArticle . 2021 . Peer-reviewedData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen bronze 23 citations 23 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!visibility 67visibility views 67 download downloads 39 Powered bymore_vert ZENODO arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La SapienzaProceedings of the AAAI Conference on Artificial IntelligenceArticle . 2021 . Peer-reviewedData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1609/aaai.v35i14.17489&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 ItalyPublisher:Elsevier BV Funded by:EC | MULTIJEDIEC| MULTIJEDIKrause, Sebastian; Hennig, Leonhard; MORO, ANDREA; Weissenborn, Dirk; Xu, Feiyu; Uszkoreit, Hans; NAVIGLI, Roberto;handle: 11573/960096
Recent years have seen a significant growth and increased usage of large-scale knowledge resources in both academic research and industry. We can distinguish two main types of knowledge resources: those that store factual information about entities in the form of semantic relations (e.g., Freebase), namely so-called knowledge graphs, and those that represent general linguistic knowledge (e.g., WordNet or UWN). In this article, we present a third type of knowledge resource which completes the picture by connecting the two first types. Instances of this resource are graphs of semantically-associated relations (sar-graphs), whose purpose is to link semantic relations from factual knowledge graphs with their linguistic representations in human language. We present a general method for constructing sar-graphs using a language- and relation-independent, distantly supervised approach which, apart from generic language processing tools, relies solely on the availability of a lexical semantic resource, providing sense information for words, as well as a knowledge base containing seed relation instances. Using these seeds, our method extracts, validates and merges relation-specific linguistic patterns from text to create sar-graphs. To cope with the noisily labeled data arising in a distantly supervised setting, we propose several automatic pattern confidence estimation strategies, and also show how manual supervision can be used to improve the quality of sar-graph instances. We demonstrate the applicability of our method by constructing sar-graphs for 25 semantic relations, of which we make a subset publicly available at http://sargraph.dfki.de. We believe sar-graphs will prove to be useful linguistic resources for a wide variety of natural language processing tasks, and in particular for information extraction and knowledge base population. We illustrate their usefulness with experiments in relation extraction and in computer assisted language learning.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routesbronze 12 citations 12 popularity Top 10% influence Average impulse Average Powered by BIP!more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.2139/ssrn.3199232&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2021 ItalyPublisher:Association for Computational Linguistics (ACL) Funded by:EC | MOUSSEEC| MOUSSEAuthors: Procopio, Luigi; Tripodi, Rocco; Navigli, Roberto;Procopio, Luigi; Tripodi, Rocco; Navigli, Roberto;handle: 11573/1605363 , 10278/5047986
Graph-based semantic parsing aims to represent textual meaning through directed graphs. As one of the most promising general-purpose meaning representations, these structures and their parsing have gained a significant interest momentum during recent years, with several diverse formalisms being proposed. Yet, owing to this very heterogeneity, most of the research effort has focused mainly on solutions specific to a given formalism. In this work, instead, we reframe semantic parsing towards multiple formalisms as Multilingual Neural Machine Translation (MNMT), and propose SGL, a many-to-many seq2seq architecture trained with an MNMT objective. Backed by several experiments, we show that this framework is indeed effective once the learning procedure is enhanced with large parallel corpora coming from Machine Translation: we report competitive performances on AMR and UCCA parsing, especially once paired with pre-trained architectures. Furthermore, we find that models trained under this configuration scale remarkably well to tasks such as cross-lingual AMR parsing: SGL outperforms all its competitors by a large margin without even explicitly seeing non-English to AMR examples at training time and, once these examples are included as well, sets an unprecedented state of the art in this task. We release our code and our models for research purposes at https://github.com/SapienzaNLP/sgl.
Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università degli Studi di Venezia Ca' Foscari; Archivio della ricerca- Università di Roma La Sapienza; Archivio istituzionale della ricerca - Alma Mater Studiorum Università di BolognaOther literature type . Conference object . 2021 . Peer-reviewedArchivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess Routeshybrid 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università degli Studi di Venezia Ca' Foscari; Archivio della ricerca- Università di Roma La Sapienza; Archivio istituzionale della ricerca - Alma Mater Studiorum Università di BolognaOther literature type . Conference object . 2021 . Peer-reviewedArchivio della ricerca- Università di Roma La SapienzaConference object . 2021Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Preprint 2020 ItalyPublisher:Elsevier BV Funded by:EC | SUCCESSEC| SUCCESSSimona Arrighi; Adriana Moroni; Laura Tassoni; Francesco Boschin; Federica Badino; Eugenio Bortolini; Paolo Boscato; Jacopo Crezzini; Carla Figus; Manuela Forte; Federico Lugli; Giulia Marciani; Gregorio Oxilia; Fabio Negrino; Julien Riel-Salvatore; Matteo Romandini; Marco Peresani; Enza Elena Spinapolice; Annamaria Ronchitelli; Stefano Benazzi;The arrival of Modern Humans (MHs) in Europe between 50 ka and 36 ka coincides with significant changes in human behaviour, regarding the production of tools, the exploitation of resources and the systematic use of ornaments and colouring substances. The emergence of the so-called modern behaviours is usually associated with MHs, although in these last decades findings relating to symbolic thinking of pre-Sapiens groups have been claimed. In this paper we present a synthesis of the Italian evidence concerning bone manufacturing and the use of ornaments and pigments in the time span encompassing the demise of Neandertals and their replacement by MHs. Current data show that Mousterian bone tools are mostly obtained from bone fragments used as is. Conversely an organized production of fine shaped bone tools is characteristic of the Uluzzian and the Protoaurignacian, when the complexity inherent in the manufacturing processes suggests that bone artefacts are not to be considered as expedient resources. Some traces of symbolic activities are associated to Neandertals in Northern Italy. Ornaments (mostly tusk shells) and pigments used for decorative purposes are well recorded during the Uluzzian. Their features and distribution witness to an intriguing cultural homogeneity within this technocomplex. The Protoaurignacian is characterized by a wider archaeological evidence, consisting of personal ornaments (mostly pierced gastropods), pigments and artistic items.
Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università di Ferrara; Archivio istituzionale della ricerca - Università di Genova; Usiena air - Università di Siena; Quaternary InternationalOther literature type . Article . 2020 . 2019 . Peer-reviewedLicense: Elsevier TDMArchivio della ricerca- Università di Roma La SapienzaArticle . 2019Data sources: Archivio della ricerca- Università di Roma La Sapienzahttps://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.quaint.2019.11.016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen hybrid 26 citations 26 popularity Top 10% influence Average impulse Top 10% Powered by BIP!more_vert Archivio istituziona... arrow_drop_down Archivio istituzionale della ricerca - Università di Ferrara; Archivio istituzionale della ricerca - Università di Genova; Usiena air - Università di Siena; Quaternary InternationalOther literature type . Article . 2020 . 2019 . Peer-reviewedLicense: Elsevier TDMArchivio della ricerca- Università di Roma La SapienzaArticle . 2019Data sources: Archivio della ricerca- Università di Roma La Sapienzahttps://doi.org/10.48550/arxiv...Article . 2020License: arXiv Non-Exclusive DistributionData sources: Dataciteadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.quaint.2019.11.016&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type 2019 Italy, FrancePublisher:IOP Publishing Funded by:EC | EuroCirColEC| EuroCirColBruce, Roderik; Abramov, Andrey; Bertarelli, Alessandro; Besana, Maria Ilaria; Carra, Federico; Cerutti, Francesco; Faus-Golfe, Angeles; Fiascaris, Maria; Gobbi, Giorgia; Krainer, Alexander; Lechner, Anton; Mereghetti, Alessio; Mirarchi, Daniele; Molson, James; Pasquali, Michele; Redaelli, Stefano; Schulte, Daniel; Serluca, Maurizio; Skordis, Eleftherios; Varasteh, Mohammad;The Future Circular Collider (FCC-hh) is being designed as a 100 km ring that should collide 50 TeV proton beams. At 8.3 GJ, its stored beam energy will be a factor 28 higher than what has been achieved in the Large Hadron Collider, which has the highest stored beam energy among the colliders built so far. This puts unprecedented demands on the control of beam losses and collimation, since even a tiny beam loss risks quenching superconducting magnets. We present in this article the design of the FCC-hh collimation system and study the beam cleaning through simulations of tracking, energy deposition, and thermo-mechanical response. We investigate the collimation performance for design beam loss scenarios and potential bottlenecks are highlighted. Proceedings of the 10th Int. Particle Accelerator Conf., IPAC2019, Melbourne, Australia
Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La Sapienza; Journal of Physics : Conference SeriesArticle . Conference object . 2019 . Peer-reviewedLicense: CC BYArchivio della ricerca- Università di Roma La SapienzaConference object . 2019Data sources: Archivio della ricerca- Università di Roma La SapienzaMémoires en Sciences de l'Information et de la CommunicationConference object . 2019HAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2019add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1742-6596/1350/1/012009&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesgold 3 citations 3 popularity Average influence Average impulse Average Powered by BIP!more_vert Archivio della ricer... arrow_drop_down Archivio della ricerca- Università di Roma La Sapienza; Journal of Physics : Conference SeriesArticle . Conference object . 2019 . Peer-reviewedLicense: CC BYArchivio della ricerca- Università di Roma La SapienzaConference object . 2019Data sources: Archivio della ricerca- Università di Roma La SapienzaMémoires en Sciences de l'Information et de la CommunicationConference object . 2019HAL - UPEC / UPEM; HAL-Pasteur; HAL-Inserm; Hal-DiderotConference object . 2019add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1088/1742-6596/1350/1/012009&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 France, ItalyPublisher:Springer Science and Business Media LLC Funded by:EC | ROMPEC| ROMPC. Pepe; Laura Sadori; Valerie Andrieu-Ponel; Ferréol Salomon; Jean-Philippe Goiran;handle: 11573/925252
Pollen and non pollen palynomorph analyseswere carried out in a sediment core (MO2) drilledin the southern lobe of a palaeomeander, Fiume Morto(Dead River), in the Tiber delta area, near AncientOstia (central Italy). Since the Roman period, theTiber River flowed close to Ancient Ostia and itssaltworks, Salinae Ostiensis. The Tiber meander wascut off during the Tiber River flood of 1557 AD andtransformed into an oxbow lake. During the nineteenthcentury the Fiume Morto pond was reclaimed and atpresent the area is about 3 km distant from the presentshoreline and intensely transformed by human settlements.According to radiocarbon dates, the pollenrecord, not continuous, spans from the fourth centuryBC to the nineteenth century AD. It shows first ariverine phase before the meander cut off of sixteenthcentury AD and probably only the last centuries BCwere preserved from erosion. The river deposits recordriparian vegetation (mainly tamarisk and alder) withmesophilous (mainly deciduous oaks) and Mediterranean(mainly evergreen oaks, heather and olive tree)elements. The human presence is clear, probablyrelated to the development of Ancient Ostia andevidenced by synanthropic taxa. The second phasecorresponds to the oxbow lake formed after themeander cut off. Several peaks of pine pollen aretentatively ascribed to Tiber flood events: the first peakis found just in correspondence with the meander cutoff at 1557 AD. The numerous floods we interpret inthe following part of the diagram could be linked to theincrease in extreme events and precipitation thatoccurred during the Little Ice Age. The last phase, inwhich freshwater plants are present and chenopodsdecrease, shows the saltworks abandonment thatoccurred in nineteenth century. This study turned outto be of key relevance to reconstruct the palaeoenvironmentalevolution of the ancient Holocene Tibermeander during the last two and a half millennia. International audience
Mémoires en Sciences... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10933-016-9903-5&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess Routesbronze 10 citations 10 popularity Average influence Average impulse Top 10% Powered by BIP!more_vert Mémoires en Sciences... arrow_drop_down Archivio della ricerca- Università di Roma La SapienzaArticle . 2016Data sources: Archivio della ricerca- Università di Roma La Sapienzaadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/s10933-016-9903-5&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2018 Italy, Serbia, United KingdomPublisher:Springer Science and Business Media LLC Funded by:EC | MESO-NEO TECHNOLOGY, EC | HIDDEN FOODS, NSF | First Farmers in Southeas...EC| MESO-NEO TECHNOLOGY ,EC| HIDDEN FOODS ,NSF| First Farmers in Southeast Europe: Isotopic Evidence for Human MigrationDusan Boric; Thomas Higham; Emanuela Cristiani; Vesna Dimitrijević; Olaf Nehlich; Seren Griffiths; Craig Alexander; Bojana Mihailović; Dragana Filipović; Ethel Allué; Michael Buckley;AbstractThe archaeological site of Lepenski Vir is widely known after its remarkable stone art sculptures that represent a unique and unprecedented case of Holocene hunter-gatherer creativity. These artworks were found largely associated with equally unique trapezoidal limestone building floors around their centrally located rectangular stone-lined hearths. A debate has raged since the discovery of the site about the chronological place of various discovered features. While over years different views from that of the excavator about the stratigraphy and chronology of the site have been put forward, some major disagreements about the chronological position of the features that make this site a key point of reference in European Prehistory persist. Despite challenges of re-analyzing the site’s stratigraphy from the original excavation records, taphonomic problems, and issues of reservoir offsets when providing radiocarbon measurements on human and dog bones, our targeted AMS (Accelerator Mass Spectrometry) dating of various contexts from this site with the application of Bayesian statistical modelling allows us to propose with confidence a new and sound chronological framework and provide formal estimates for several key developments represented in the archaeological record of Lepenski Vir that help us in understanding the transition of last foragers to first farmers in southeast Europe as a whole.
Archivio della ricer... arrow_drop_down REFF - University of Belgrade - Faculty of PhilosophyArticle . 2018License: CC BYData sources: REFF - University of Belgrade - Faculty of PhilosophyArchivio della ricerca- Università di Roma La SapienzaArticle . 2018Data sources: Archivio della ricerca- Università di Roma La SapienzaThe University of Manchester - Institutional RepositoryArticle . 2018Data sources: The University of Manchester - Institutional Repositoryadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-018-31884-7&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!visibility 4visibility views 4 download downloads 27 Powered bymore_vert Archivio della ricer... arrow_drop_down REFF - University of Belgrade - Faculty of PhilosophyArticle . 2018License: CC BYData sources: REFF - University of Belgrade - Faculty of PhilosophyArchivio della ricerca- Università di Roma La SapienzaArticle . 2018Data sources: Archivio della ricerca- Università di Roma La SapienzaThe University of Manchester - Institutional RepositoryArticle . 2018Data sources: The University of Manchester - Institutional Repositoryadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1038/s41598-018-31884-7&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2021 Italy EnglishPublisher:Bancaria editrice Funded by:EC | PERCEPTIONSEC| PERCEPTIONSAuthors: Ambrosetti, Elena; Miccoli, Sara; Strangio, Donatella;Ambrosetti, Elena; Miccoli, Sara; Strangio, Donatella;All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______3686::bebf428b58a2f80c77d4678aa39d0c83&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!more_vert All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://www.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=od______3686::bebf428b58a2f80c77d4678aa39d0c83&type=result"></script>'); --> </script>
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