Abstract Sentiment analysis SA is concerned with determining users’ opinions from text reviews. However, mining these opinions from massive amounts of unstructured and lengthy documents is a challenging task. In this paper, we propose methods that extract valuable opini...

In this paper, the authors propose and readapt a new concept-based approach of query expansion in the context of Arabic information retrieval. The purpose is to represent the query by a set of weighted concepts in order to identify better the user's information need. Fi...

Social networks are used by terrorist groups and people who support them to propagate their ideas, ideologies, or doctrines and share their views on terrorism. To analyze tweets related to terrorism, several studies have been proposed in the literature. Some works rely ...

Ce travail a pour objectif d’effectuer une interprétation sociolinguistique et socio-stylistique de la diversité des structures interrogatives partielles dans le français parlé d’Alger-Chaîne III et ceci dans trois émissions radiophoniques interactives à thèmes social, ...

The classification of movie genres from their synopses has attracted the attention of many researchers. Indeed, synopses are a source of relevant information that contributes to determinate movie genre. The automation of this classification process is very useful in sev...

Abstract Embeddings are very popular representations that allow computing semantic and syntactic similarities between linguistic units from text co-occurrence matrix. Units can vary from character n-grams to words, including more coarse-grained units such as sentences a...

This article explores nineteenth-century U.S. foreign policy towards Hispaniola, particularly Haiti, and investigates Frederick Douglass' controversial stance on U.S. expansion on the island. Indee...

The use of Information and Communication Technology (ICT) in the teaching and learning process has been the subject of extensive research in the past few decades. Many studies have discussed the benefits of ICT for teachers and learners. However, little is known about t...

International audience; The continued increase in the use of smartphones and other mobile devices has led to a substantial increase in the demand for mobile applications. With the growing availability of mobile apps, retrieving the right application from a large set has...

Abstract In this paper, we report a numerical study of a Nd:YAG solar laser side-pumped by a ring-array concentrator (RAC) system. We used the ZEMAX© and LASCAD© software to optimize a 1.5-m diameter RAC system, a 3V-shaped pump cavity within which a Nd:YAG single-cryst...