Now showing items 1-4 of 4

    • Diversity and novelty in web search, recommender systems and data streams 

      Santos, R. L. T.; Castells, P.; Altingovde, I. S.; Can, F. (Association for Computing Machinery, 2014)
      This tutorial aims to provide a unifying account of current research on diversity and novelty in the domains of web search, recommender systems, and data stream processing.
    • Evolution of web search results within years 

      Altingovde, I. S.; Ozcan, R.; Ulusoy, O. (2011)
      We provide a first large-scale analysis of the evolution of query results obtained from a real search engine at two distant points in time, namely, in 2007 and 2010, for a set of 630,000 real queries.
    • Space efficient caching of query results in search engines 

      Ozcan, R.; Altingovde I.S.; Ulusoy O. (2008)
      Web search engines serve millions of query requests per day. Caching query results is one of the most crucial mechanisms to cope with such a demanding load. In this paper, we propose an efficient storage model to cache ...
    • 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 ...