In much of neuroimaging and neuropsychology, regions of the brain have been associated with 'lexical representation', with little consideration as to what this cognitive construct actually denotes. Within current computational models of word recognition, there are a number of different approaches to the representation of lexical knowledge. Structural lexical representations, found in original t...

A Context Search algorithm used for lexical knowledge acquisition is presented. Knowledge representation based on psycholinguistic theories of cognitive processes allows for implementation of a computational model of semantic memory in the form of semantic network. Knowledge acquisition using supervised dialog templates have been performed in a word game designed to guess the concept a human us...

The English WordNet is a lexical database containing more than 206,900 wordconcept pairs and more than 377,500 semantic and lexical links. Trying to visualize them all at once as a node-link diagram results in a representation which can be too big and complex for the user to grasp, and which cannot be easily processed by current web technologies. We propose a visualization technique based on th...

The authors attempted to determine whether surface representations of spoken words are mapped onto underlying, abstract representations. In particular, they tested the hypothesis that flaps--neutralized allophones of intervocalic /t/s and /d/s--are mapped onto their underlying phonemic counterparts. In 6 repetition priming experiments, participants responded to stimuli in 2 blocks of trials. St...

The approach to multilingual lexical representation developed as part of the ACQUILEX Lexical Knowledge Base (LKB) discussed with specific reference to complex translation equivalence. The treatment described provides a lexicalist account of translation mismatches in terms of translation links which capture cross-linguistic generalizations across sets of semantically related lexical items, and ...

In psycholinguistic studies of lexical processing, language users’ responses to real words are often compared to novel pseudoword forms. The goal of these comparisons is to learn something about the architecture of the lexical processing system, by examining or inferring the processing pathways evoked by words, which have full phonological, lexical, grammatical, and semantic representations. Th...

A proposal is presented for integration between a graphical model, such as conceptual maps, and ontologies codified in the OWL language. Conceptual maps are a flexible form of knowledge representation, very useful in education-related collaborative environments; OWL is a language of knowledge representation oriented to semantic analysis and processing carried out by machines. Integration consis...

This study links stock prices of publicly traded companies with online financial news to predict direction of stock price change. Previous work shows this to be an extremely challenging problem. We develop a very high-dimensional representation for news about companies that encodes lexical, syntactic and frame semantic information in graphs. Use of a graph kernel to efficiently compare subgraph...