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Automatic Extraction of Contextual Co-occurrence Chain and Its Relationship with Textual Cohesion
1Shandong University; PLA Information Engineering University
Citation Information: Chinese Journal of Applied Linguistics. Volume 34, Issue 4, Pages 3–14, ISSN (Online) 2192-9513, ISSN (Print) 2192-9505, DOI: 10.1515/cjal.2011.030, November 2011
- Published Online:
Semantic lexical chains have been regarded as important in textural cohesion, although traditionally, the classification of these chains has been limited to repetition, synonymy, hyponymy, and collocates. The cases of automatic extraction of lexical chains have found that the contextual synonyms can not be recognized, nor extracted automatically. This study took the data-based technology to extract the contextually co-occurring lexical chains through thematic lexical items. It found that these contextually co-occurring lexical chains can include the semantic lexical chains and contextual synonyms. It also found that, in extraction of collocates of the co-occurring lexical items, these collocates form secondary lexical chains, which contribute to textual cohesion. The vertical lexical chains made of contextually co-occurring lexical items and the horizontal chains made of collocational lexical items work together in making the text into a coherent whole.