Optimize the parameter in different data source
来自cslt Wiki
method
Definition
- formula
score(q_1,query)=w_1×f_1 (q_1,query,STD)+w_(2×) f_1 (q_1,query,STD+ANS)+w_3×f_1 (q_1,query,STD+EXT)
boost some specific field in lucene
- Here is how you can do that[1]
Query titleQuery, viewsQuery; titleQuery.setBoost(0.8); viewsQuery.setBoost(0.2); BooleanQuery query = new BooleanQuery(); query.add(titleQuery, Occur.MUST); // or Occur.SHOULD if this clause is optional query.add(viewsQuery, Occur.SHOULD); // or Occur.MUST if this clause is required // use query to search documents
The score will be proportional to 0.8*score(titleQuery) + 0.2*score(viewsQuery) (to a multiplicative constant). To leverage your views field, you will probably need to use a ValueSourceQuery