Lexicon-based approaches have been widely used for opinion retrieval due to their simplicity. However, no previous work has focused on the domain-dependency problem in opinion lexicon construction. This paper proposes simple feedback-style learning for query-specific opinion lexicon using the set of top-retrieved documents in response to a query. The proposed learning starts from the initial do...

This paper describes a set of interactive routines that can be used to create, maintain, and update a computer lexicon. The routines are available to the user as a set of commands resembling a simple operating system. The lexicon produced by this system is based on lexical-semantic relations, but is compatible with a variety of other models of lexicon structure. The lexicon builder is suitable ...

This paper presents NileULex, which is an Arabic sentiment lexicon containing close to six thousands Arabic words and compound phrases. Forty five percent of the terms and expressions in the lexicon are Egyptian or colloquial while fifty five percent are Modern Standard Arabic. The development of the presented lexicon has taken place over the past two years. While the collection of many of the ...

PURPOSE We sought to identify the core lexicon of a picture-description task using transcripts from the AphasiaBank database and to determine differences in core-lexicon usage between control speakers and persons with aphasia (PWAs). We also investigated the relationship between core lexicon and an established discourse measure, main-concept analysis. METHOD A core lexicon was developed by id...

qeysar aminpour (1959-2007) is one of the outstanding figures in contemporary persian poetry. one of the prominent aspects of his poetic style is the distinct language of his poems in the three areas of lexicon, compositions and syntax. relying on these three areas, this study attempted to investigate the most important linguistic features of his poetry in order to figure out special style of t...

Ontologies as part of a lexicon are important for many NLP tasks. In this paper, we draw on experiences gained in an ESPRIT project called TREVI, which concerns news filtering and enrichment and includes a English/Spanish multilingual Lexicon. We sketch the way the Lexicon, including an ontology, is constructed, and present the methodology used for adding domain ontologies. In general, the appr...

the spreading activation models of mental lexicon's structure have presented the lexicon in multiple layers (semantic- syntactic- phonological). each layer is a network of nodes which are associated by links. the nature of these links is different from layer to layer. the literature for english speakers has shown that in the phonological layer, phonological forms of words have been linked based...