Optimize the parameter in different data source

method

Definition

• formula

• data source: q:standard question, q-a:standard question and answer, q-e: standard question and extracted question, q-w:standard question with weight.
• lucent result: q: q1 ,q2 ,q3 ,q4,q5, q-a:k1,k2,k3,k4,k5, q-e:m1,m2,m3,m4,m5

boost some specific field

• 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