Semantic lexical resources play an important part in both linguistic study and natural language engineering. In Lancaster, a large semantic lexical resource has been built over the past 14 years, which provides a knowledge base for the USAS semantic tagger. Capturing semantic lexicological theory and empirical lexical usage information extracted from corpora, the Lancaster semantic lexicon prov...

This paper raises and discusses three questions about the structure of Meaning-Text Theory, based on consideration of the role that paradigmatic Lexical Functions play in its model of the lexicon: Is the paradigmatic-syntagmatic distinction meaningful? Do paradigmatic LFs represent redundant semantic information (and if so, is the redundancy justified)? And finally, might definitions of lexemes...

In this tutorial, we demonstrate how elements of Generative Lexicon Theory (GL) can be used to help enrich both established and developing lexical and computational semantic resources within the CL community. This includes lexicons, ontologies, annotation schemes, and annotated corpora (WordNet, VerbNet, PropBank, FrameNet, AMR, GMB, SIMPLE, and others). The tutorial is organized into two parts...

A lexical function represents a type of relation that exists between lexical units (words or expressions) in any language. For example, the antonymy is a type of relat ion that is represented by the lexical function Anti: Anti(big) = small. Those relations include both paradigmatic relations, i.e. vertical relations, such as synonymy, antonymy and meronymy and syntagmatic relat ions, i.e. horiz...

My primary research is in the representation of semantic information and its use in natural language processing applications. The meaning of a sentence is a central aspect of natural language understanding, yet an elusive one, since there is no accepted methodology for determining meaning. There is not even a consensus on criteria for distinguishing word senses, as can easily be seen by compari...

This paper describes a semantic representation formalism dedicated to cooperative questions answering systems. This formalism, based on the lexical conceptual structure (LCS), represents in an homogeneous way Web texts, natural language questions and their related answers. The different mode of cooperative responses are presented. The prerequisites to the construction of cooperative responses i...

In this paper we present an overview of recent developments in discourse theory and parsing under the Linguistic Discourse Model (LDM) framework, a semantic theory of discourse structure. We give a novel approach to the problem of discourse segmentation based on discourse semantics and sketch a limited but robust approach to symbolic discourse parsing based on syntactic, semantic and lexical ru...

The recent development of Audio-based Distributional Semantic Models (ADSMs) enables the computation of audio and lexical vector representations in a joint acoustic-semantic space. In this work, these joint representations are applied to the problem of automatic tag generation. The predicted tags together with their corresponding acoustic representation are exploited for the construction of aco...

In this paper, we describe a program of research designed to explore.' how a lexical semantic theory may be exploited for extracting information from corpora suitable for use in Information Retrieval applications. Unlike with purely statistical collocational analyses, the framework of a semantic theory allows the ~ultomatic construction of predictions about semantic relationships among words ap...