Analyses of Multiple-Evidence Combinations for Retrieval Strategies

  title={Analyses of Multiple-Evidence Combinations for Retrieval Strategies},
  author={Abdur Chowdhury and Ophir Frieder and David A. Grossman and M. Catherine McCabe},
Multiple-evidence techniques are touted as means to improve the effectiveness of systems. Belkin, et al. [1] examined the effects of various query representations. Fox, et al. [2] proposed several combination algorithms and found that combinations of the same types of runs (long and short queries within the vector space model) did not yield improvement and sometimes even degraded performance. He did achieve improvement over individual runs when merging different retrieval strategies (e.g… CONTINUE READING

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