2014年11月21日 (五) 01:53的版本

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 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 [2].