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Table 3 Tuning of the search engine regarding the variant of the technical survey task.

From: Development and tuning of an original search engine for patent libraries in medicinal chemistry

Strategy Tuning P0
Impact of the description field Description 23.63%
  No description 33.59%
Impact of the metadata field No metadata 34.78%
  Metadata on TAC 35.02%
  Metadata on TACD 33.59%
Impact of the weighting model PL2 33.59%
  BM25 40.86%
Impact of the co-citation network Without re-ranking 40.86%
  With re-ranking 40.87%
Impact of the use of IPC codes No IPC codes 40.87%
  IPC codes 46.02%
  1. The tuning displayed in bold is selected for the further strategies. P0 indicates the top-precision.