Now showing items 1-6 of 6

    • Document ranking by graph based lexical cohesion and term proximity computation 

      Gürkök, Hayrettin (Bilkent University, 2008)
      During the course of reading, the meaning of each word is processed in the context of the meaning of the preceding words in text. Traditional IR systems usually adopt index terms to index and retrieve documents. ...
    • A graph based approach to estimating lexical cohesion 

      Gürkök, Hayrettin; Karamuftuoglu, Murat; Schaal, Markus (ACM, 2008)
      Traditionally, information retrieval systems rank documents according to the query terms they contain. However, even if a document may contain all query terms, this does not guarantee that it is relevant to the query. The ...
    • Lexical cohesion and term proximity in document ranking 

      Vechtomova, O.; Karamuftuoglu, M. (Elsevier Ltd, 2008-07)
      We demonstrate effective new methods of document ranking based on lexical cohesive relationships between query terms. The proposed methods rely solely on the lexical relationships between original query terms, and do not ...
    • Lexical cohesion based topic modeling for summarization 

      Ercan, Gönenç; Çiçekli, İlyas (Springer, 2008-02)
      In this paper, we attack the problem of forming extracts for text summarization. Forming extracts involves selecting the most representative and significant sentences from the text. Our method takes advantage of the lexical ...
    • On document relevance and lexical cohesion between query terms 

      Vechtomova, O.; Karamuftuoglu, M.; Robertson, S. E. (Elsevier, 2006)
      Lexical cohesion is a property of text, achieved through lexical-semantic relations between words in text. Most information retrieval systems make use of lexical relations in text only to a limited extent. In this paper ...
    • Query expansion with terms selected using lexical cohesion analysis of documents 

      Vechtomova, O.; Karamuftuoglu, M. (Elsevier Ltd, 2007-07)
      We present new methods of query expansion using terms that form lexical cohesive links between the contexts of distinct query terms in documents (i.e., words surrounding the query terms in text). The link-forming terms ...