Lexical chains are widely used as a representation of text for Natural Language Processing tasks. However, efficient algorithms for the construction of lexical chains often resort to local decisions. We propose a new algorithm for Lexical Chaining, based on a global function optimization through Relaxation Labelling. A preliminary evaluation of the performance of our approach has been performed...

One of the key challenges involved in building statistical automatic speech recognition (ASR) systems is modeling the relationship between subword units or “lexical units” and acoustic feature observations. To model this relationship two types of resources are needed, namely, acoustic resources i.e., speech data with word level transcriptions and lexical resources where each word is transcribed...

Oracle’s system for Trec8 was the interMedia Text retrieval engine integrated with the Oracle8i database and SQL query language. interMedia Text supports a novel theme-based document retrieval capability using an extensive lexical knowledge base. Trec8 queries constructed by extracting themes from topic titles and descriptions were manually refined. Queries were simple and intuitive. Oracle’s r...

This paper discusses a system capable of detecting when answers for specific questions are supported by snippets, all provided by Question Answering (QA) systems. This task is known as the Answer Validation Exercise (AVE) track within the Cross– language Evaluation Forum (CLEF). The system uses a set of regular expressions in order to join the question and the answer into an affirmative sentenc...

WordNet is an electronic lexical database available on-line as a powerful resource to the researchers in the area of computational linguistics, text processing and other related areas. WordNet for Hindi language has already been developed by IIT, Bombay. The Indian languages WordNets are being created using expansion approach from Hindi WordNet under IndoWordNet project. In expansion approach, ...

The present study investigated the effect of different types of text simplification (i.e., reducing the lexical and syntactic complexity of texts) on reading comprehension of English as a Foreign Language learners (EFL). Sixty female intermediate EFL learners from three intact classes in Tabarestan Language Institute in Tehran participated in the study. The intact classes were assigned to three...

The goal of this article is to illustrate the application of self-organizing dynamics in the design of a model of lexical access. We focus particularly on the mapping of sound structure on to the lexicon and the influence of that structure on lexical access. The approach is tested in a series of two sets of simulations that explicate how lexical access might occur in normal subjects and aphasic...

Multi-word lexical units are a typical feature of specialized dictionaries, in particular monolingual and bilingual maritime dictionaries. The paper studies the concept of the multi-word lexical unit and considers the similarities and differences of their selection and presentation in monolingual and bilingual maritime dictionaries. The work analyses such issues as the classification of multi-w...

In this paper, we describe an approach based on off-the-shelf parsers and semantic resources for the Recognizing Textual Entailment (RTE) challenge that can be generally applied to any domain. Syntax is exploited by means of tree kernels whereas lexical semantics is derived from heterogeneous resources, e.g. WordNet or distributional semantics through Wikipedia. The joint syntactic/semantic mod...