Now showing items 1-7 of 7

    • Document replication strategies for geographically distributed web search engines 

      Kayaaslan, E.; Cambazoglu, B. B.; Aykanat, C. (Elsevier Ltd., 2013)
      Large-scale web search engines are composed of multiple data centers that are geographically distant to each other. Typically, a user query is processed in a data center that is geographically close to the origin of the ...
    • Incorporating the surfing behavior of web users into PageRank 

      Ashyralyyev, S.; Cambazoglu, B. B.; Aykanat, C. (2013)
      In large-scale commercial web search engines, estimating the importance of a web page is a crucial ingredient in ranking web search results. So far, to assess the importance of web pages, two different types of feedback ...
    • Incorporating the surfing behavior of web users into PageRank 

      Ashyralyyev, Shatlyk (Bilkent University, 2013)
      One of the most crucial factors that determines the effectiveness of a large-scale commercial web search engine is the ranking (i.e., order) in which web search results are presented to the end user. In modern web search ...
    • Optimization of an educational search engine using learning to rank algorithms 

      Usta, Arif (Bilkent University, 2015-09)
      Web search is one of the most popular internet activities among users. Due to high usage of search engines, there are huge data available about history of user search issues. Using query logs as a source of implicit ...
    • A result cache invalidation scheme for web search engines 

      Alıcı, Şadiye (Bilkent University, 2011)
      The result cache is a vital component for the efficiency of large-scale web search engines, and maintaining the freshness of cached query results is a current research challenge. As a remedy to this problem, our work ...
    • Site-based partitioning and repartitioning techniques for parallel pagerank computation 

      Cevahir, A.; Aykanat, C.; Turk, A.; Cambazoglu, B. B. (Institute of Electrical and Electronics Engineers, 2011-05)
      The PageRank algorithm is an important component in effective web search. At the core of this algorithm are repeated sparse matrix-vector multiplications where the involved web matrices grow in parallel with the growth of ...
    • Timestamp-based result cache invalidation for web search engines 

      Alici, S.; Altingovde I.S.; Ozcan, R.; Cambazoglu, B.B.; Ulusoy O. (2011)
      The result cache is a vital component for efficiency of large-scale web search engines, and maintaining the freshness of cached query results is the current research challenge. As a remedy to this problem, our work proposes ...