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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.