Improved search method by rewrited query

ppt

[1]

test

• Test conditions

• (../res/corpus/20141016凉山州/3文本/testJ.txt) about 1596 questions.
• Only Lucene

Test result 1

• PTN+STD

• queryNorm dependent but include coord(between query)

different result in lucene(queryNorm dependent )

method	baseline	new_index_template(1.0 1.0)	by Z-MERT(1.8411, 1.0)
Accary	0.662280	0.669799	0.678571

• queryNorm independent but include coord(between query)

different result in lucene(queryNorm independent )

method	baseline	new_index_template(1.0 1.0)	by Z-MERT(1.8435, 1.0)
Accary	0.662280	0.67669	0.68671679

• PTN+STD+ANS

different result in lucene(queryNorm independent )

method	baseline	new_index_template(1.0 1.0)	by Z-MERT(1.8435, 1.0)
Accary	0.662280	0.67669	0.68671679

note:above are only sq and pattern.