Blar i NTNU Open på forfatter "Tomassen, Stein L."

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    • Conceptual Ontology Enrichment for Web Information Retrieval 

      Tomassen, Stein L. (Doktoravhandlinger ved NTNU, 1503-8181; 2011:51, Doctoral thesis, 2011)
      Searching for information on the Web can be frustrating. One of the reasons is the ambiguity of words. The work presented in this thesis concentrates on how the effectiveness of standard information retrieval systems can ...

    • Extracting Keyphrases from Individual News Articles 

      Lund, Kristian (Master thesis, 2011)
      Extraction of keyphrases from individual documents is a research area in which one try to extract a small set of keyphrases that describe the content of a single document. The advantages with this form of extraction is ...

    • Extracting Named Entities and Synonyms from Wikipedia for use in News Search 

      Bøhn, Christian (Master thesis, 2008)
      In news articles the focus on named entities is quite common and usually a news case is tied around a person, a company, or similar. One challenge from an information retrieval point of view is that one entity often have ...

    • Semantic Relations in Yahoo! News Search 

      Evensen, Øyvind Arne (Master thesis, 2007)
      In this thesis we propose a novel approach were 3 days of raw Yahoo! News search query logs are analyzed to find semantic relations among queries. The analysis is based on two independent contributions. The first use session ...