Table 3.
Tuning of the search engine regarding the variant of the technical survey task.
| 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% | |
The tuning displayed in bold is selected for the further strategies. P0 indicates the top-precision.