In this paper we apply conditional random fields (CRFs) to the semantic role labelling task. We define a random field over the structure of each sentence's syntactic parse tree. For each node of the tree, the model must predict a semantic role label, which is interprete...

Segmentation of utterances and annotation as dialogue acts can be helpful for several modules of dialogue systems. In this work, we study a statistical machine learning model to perform these tasks simultaneously using lexical features and incorporating deterministic sy...

This paper explores the ways in which Adriaen Coorte (1665–1707) in his still lifes presents philosophical reflections on sublimity. I argue that throughout his oeuvre Coorte, despite the unusually small size of his works (often not much larger than a postcard), can be ...

We advance the state-of-the-art for discriminatively trained machine translation systems by presenting novel probabilistic inference and search methods for synchronous grammars. By approximating the intractable space of all candidate translations produced by intersectin...

The construction of suitable and scalable representations of semantic knowledge is a core challenge in Semantic Computing. Manually created resources such as WordNet have been shown to be useful for many AI and NLP tasks, but they are inherently restricted in their cov...

We propose a conditional random field-based method for supertagging, and apply it to the task of learning new lexical items for HPSG-based precision grammars of English and Japanese. Using a pseudo-likelihood approximation we are able to scale our model to hundreds of s...

A computer-implemented technique can include receiving, at a server, labeled training data including a plurality of groups of words, each group of words having a predicate word, each word having generic word embeddings. The technique can include extracting, at the serve...

In a recent paper for the Journal of African History, A.G. Hopkins writes that economists have spent the last decade writing a “new” economic history of Africa that has escaped the notice of historians. He labels the “ethnolinguistic fractionalization” and “reversal of ...

According to economic theory, the clear definition of property rights is essential for well-functioning markets. Comparatively little attention, however, is given to explaining the development of these rights. Economic reasoning suggests that markets themselves call pro...

What did nineteenth-century chemists know? This essay uses Emil Fischer’s classic study of the sugars in 1880s and 90s Germany to argue that chemists’ knowledge was not primarily vested in the theories of valence, structure, and stereochemistry that have been the subje...