Hi All,
I have a requirement where in exact matches for 2 fields (Series Title,
Title) should be ranked higher than the partial matches. The configuration
looks like below:
<requestHandler name="assetdismax" class="solr.SearchHandler" >
<lst name="defaults">
<str name="defType">edismax</str>
<str name="echoParams">explicit</str>
<float name="tie">0.01</float>
<str name="qf">*pg_series_title_ci*^500 *title_ci*^300 *
pg_series_title*^200 *title*^25 classifications^15 classifications_texts^15
parent_classifications^10 synonym_classifications^5 pg_brand_title^5
pg_series_working_title^5 p_programme_title^5 p_item_title^5
p_interstitial_title^5 description^15 pg_series_description annotations^0.1
classification_notes^0.05 pv_program_version_number^2
pv_program_version_number_ci^2 pv_program_number^2 pv_program_number_ci^2
p_program_number^2 ma_version_number^2 ma_recording_location
ma_contributions^0.001 rel_pg_series_title rel_programme_title
rel_programme_number rel_programme_number_ci pg_uuid^0.5 p_uuid^0.5
pv_uuid^0.5 ma_uuid^0.5</str>
<str name="pf">pg_series_title_ci^500 title_ci^500</str>
<int name="ps">0</int>
<str name="q.alt">*:*</str>
<str name="mm">100%</str>
<str name="q.op">AND</str>
<str name="facet">true</str>
<str name="facet.limit">-1</str>
<str name="facet.mincount">1</str>
</lst>
</requestHandler>
As you can see above, the search is against many fields. What I'd want is
the documents that have exact matches for series title and title fields
should rank higher than the rest.
I have added 2 case insensitive (*pg_series_title_ci, title_ci*) fields for
series title and title and have boosted them higher over the tokenized and
rest of the fields. I have also implemented a similarity class to override
idf however I still get documents having partial matches in title and other
fields ranking higher than exact match in pg_series_title_ci.
Many Thanks,
Sandeep
