Lucene

test idf and tf

• data

 [{如何，怎么}} {办理，办} {户口，户口本} # 到当地派出所办理  # 如何办理户口
 {办理，办} {户口，户口本} [{流程，步骤}] # 到当地派出所办理  # 如何办理户口
 [{如何，怎么}} {办理，办} {身份证，身份} # 到当地派出所办理  # 如何办理身份证
 {办理，办} {身份证} [{流程，步骤}] # 到当地派出所办理  # 如何办理身份证

• 搜索

query:"如何办理户口"  => question:如何 question:办理户口

• result

 doc=0 score=0.11657263 shardIndex=-1|0.11657263 = (MATCH) product of:
    0.23314527 = (MATCH) sum of:
       0.23314527 = (MATCH) weight(question:如何 in 0) [DefaultSimilarity], result of:
         0.23314527 = score(doc=0,freq=1.0 = termFreq=1.0
  ), product of:
         0.40397802 = queryWeight, product of:
            1.5389965 = idf(docFreq=6, maxDocs=12)
             0.26249444 = queryNorm
          0.57712364 = fieldWeight in 0, product of:
              1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
           1.5389965 = idf(docFreq=6, maxDocs=12)
           0.375 = fieldNorm(doc=0)
   0.5 = coord(1/2)

• 详细计算流程