• Distribuerte Inverterte Indekser 

      Jonassen, Simon (Master thesis, 2008)
      Masteroppgaven presenterer en litteraturstudie på sammenligning mellom globale og lokale inverterte filer, samt alternative metoder som samlebåndsbaserte prosessering av globale inverterte filer og hybride inverterte filer. ...
    • Efficient Query Processing in Distributed Search Engines 

      Jonassen, Simon (Doktoravhandlinger ved NTNU, 1503-8181; 2013:22, Doctoral thesis, 2013)
      Web search engines have to deal with a rapidly increasing amount of information, high query loads and tight performance constraints. The success of a search engine depends on the speed with which it answers queries ...
    • Improving the Performance of Pipelined Query Processing with Skipping 

      Jonassen, Simon; Bratsberg, Svein Erik (Journal article; Peer reviewed, 2012)
      Web search engines need to provide high throughput and short query latency. Recent results show that pipelined query processing over a term-wise partitioned inverted index may have superior throughput. However, the query ...
    • Prefetching query results and its impact on search engines 

      Jonassen, Simon; Cambazoglu, B. Barla; Silvestri, Fabrizio (Chapter; Conference object; Peer reviewed, 2012)
      We investigate the impact of query result prefetching on the efficiency and effectiveness of web search engines. We propose offline and online strategies for selecting and ordering queries whose results are to be prefetched. ...