Lucene - 版本历史

Lr：/* query */

2014-12-11T01:29:46Z

‎query

Lr：/* query */

2014-12-11T01:29:36Z

‎query

Lr：/* query */

2014-12-09T02:03:24Z

‎query

Lr：以“=query =”替换内容

2014-12-09T02:02:54Z

以“=query =”替换内容

Lr：/* test result */

2014-12-09T01:57:32Z

‎test result

2014年12月9日 (二) 01:47 Lr

2014-12-09T01:47:54Z

Lr：/* result */

2014-12-08T11:31:42Z

‎result

2014年12月8日 (一) 11:22 Lr

2014-12-08T11:22:57Z

Lr：/* result */

2014-12-08T11:22:24Z

‎result

Lr：/* result */

2014-11-29T11:00:06Z

‎result

@@ 第1行： / 第1行： @@
 =query =
 *[[multi query in multi field]]
-* [improved search method by rewrited query]
+* [[improved search method by rewrited query]]

←上一版本		2014年12月11日 (四) 01:29的版本
第1行：		第1行：
	=query =		=query =
	*[[multi query in multi field]]		*[[multi query in multi field]]
		+	* [improved search method by rewrited query]

←上一版本		2014年12月9日 (二) 02:03的版本
第1行：		第1行：
	=query =		=query =
		+	*[[multi query in multi field]]

@@ 第1行： / 第1行： @@
-=check the detail of Lucene score=
+=query =
-==data==
-  d0 [{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
-  d1 {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
-  d2 [{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
-  d3 {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=0.114656925 shardIndex=-1|0.114656925 = (MATCH) product of:
-.22931385 = (MATCH) sum of:
-.22931385 = (MATCH) weight(question:如何 in 0) [DefaultSimilarity], result of:
-.22931385 = score(doc=0,freq=1.0 = termFreq=1.0
-  ), product of:
-.4748871 = queryWeight, product of:
-.287682 = idf(docFreq=2, maxDocs=4)
-.3687922 = queryNorm
-.48288077 = fieldWeight in 0, product of:
-.0 = tf(freq=1.0), with freq of:
-.0 = termFreq=1.0
-.287682 = idf(docFreq=2, maxDocs=4)
-.375 = fieldNorm(doc=0)
-.5 = coord(1/2)
-*详细计算流score(query,d0)
-*参考公式：[http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/similarities/TFIDFSimilarity.html]
- [[文件:QQ截图20141128164958.png]]
-:* tf("如何" in d0)=sqrt{frequency}= sqrt{1}=1
-:* idf("如何")=<math>1+ln( {numDocs}/{docFreq+1})=1+ln( {4}/{2+1} )
-:* 如何".getboost=1
-:* coord(如何，d0) : 0.5 = coord(1/2)
-    coord(t,d)=overlap  /maxOverlap .
-    overlap - the number of query terms matched in the document
-    maxOverlap - the total number of terms in the query
-:* queryNorm(q)= 1/sqrt(sumOfSquaredWeights)=1/sqrt(sum(idf("如何")*1+idf("办理户口")))=1/sqrt(1*(1.287682*1.287682+2.386*2.386))=0.3687.
-   sumOfSquaredWeights   =   q.getBoost()*q.getBoost()*∑( idf(t) *t.getBoost() )^2
-−
-=mutli =
-==data==
-  d0 [{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
-  d1 {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
-  d2 [{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
-  d3 {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==
-code
-  BooleanQuery query = new BooleanQuery();
-  query.add(paternQuery, Occur.MUST); // or Occur.SHOULD if this clause is optional
-  query.add(ansQuery, Occur.SHOULD); // or Occur.MUST if this clause is required
-  query.add(sqQuery, Occur.SHOULD);
-search:
-   +((question:如何 question:办理户口)^0.8) ((answer:如何 answer:办理户口)^0.2) ((standardq:如何 standardq:办理户口)^0.2)
-−
-==result==
-* 计算公式
-:* score(Q)=score(q_PTN)+score(q_ANS)+score(q_STD)
-:* querynorm(Q),Q=q_PTN+q_ANS+q_STD
-::* sumOfSquaredWeights   =  ∑{q.getBoost()*q.getBoost()*∑( idf(t) *t.getBoost() )^2},q={q_PTN , q_STD, q_ANS}
-::*  queryNorm(Q)= 1/sqrt(sumOfSquaredWeights)
-:* field patern
-::* tf("如何" in d0)=sqrt{frequency}= sqrt{1}=1
-::* idf("如何")=<math>1+ln( {numDocs}/{docFreq+1})=1+ln( {4}/{2+1} )
-::* 如何".getboost=1
-::* coord(如何，d0) : 0.5 = coord(1/2)
-    coord(t,d)=overlap  /maxOverlap .
-    overlap - the number of query terms matched in the document
-    maxOverlap - the total number of terms in the query
-::* queryNorm(q_PTN)=querynorm(Q)*boost(q_PTN)
-::* Norm
-:*
-*detail
-:* filed: answer+pattern
-     score(q,filed-pattern)+score(q,filed-answer)
-−
-  doc=0 score=0.15459718 shardIndex=-1|0.1545972 = (MATCH) product of:
-.23189577 = (MATCH) sum of:[all]
-.108532876 = (MATCH) product of:[filed:pattern]
-.21706575 = (MATCH) sum of:
-.21706575 = (MATCH) weight(question:如何 in 0) [DefaultSimilarity], result of:
-.21706575 = score(doc=0,freq=1.0 = termFreq=1.0
-  ), product of:
-.44952247 = queryWeight, product of:
-.287682 = idf(docFreq=2, maxDocs=4)
-.3490943 = queryNorm
-.48288077 = fieldWeight in 0, product of:
-.0 = tf(freq=1.0), with freq of:
-.0 = termFreq=1.0
-.287682 = idf(docFreq=2, maxDocs=4)
-.375 = fieldNorm(doc=0)
-.5 = coord(1/2)
-.12336289 = (MATCH) sum of:[field:answer]
-.032918826 = (MATCH) weight(answer:如何 in 0) [DefaultSimilarity], result of:
-.032918826 = score(doc=0,freq=1.0 = termFreq=1.0
-  ), product of:
-.06779904 = queryWeight, product of:
-.7768564 = idf(docFreq=4, maxDocs=4)
-.087273575 = queryNorm
-.48553526 = fieldWeight in 0, product of:
-.0 = tf(freq=1.0), with freq of:
-.0 = termFreq=1.0
-.7768564 = idf(docFreq=4, maxDocs=4)
-.625 = fieldNorm(doc=0)
-.090444066 = (MATCH) weight(answer:办理户口 in 0) [DefaultSimilarity], result of:
-.090444066 = score(doc=0,freq=1.0 = termFreq=1.0
-  ), product of:
-.11238062 = queryWeight, product of:
-.287682 = idf(docFreq=2, maxDocs=4)
-.087273575 = queryNorm
-.8048013 = fieldWeight in 0, product of:
-.0 = tf(freq=1.0), with freq of:
-.0 = termFreq=1.0
-.287682 = idf(docFreq=2, maxDocs=4)
-.625 = fieldNorm(doc=0)
-.6666667 = coord(2/3)
-−
-=test result=
-[[z-mert]]

←上一版本		2014年12月9日 (二) 01:57的版本
第114行：		第114行：

	=test result=		=test result=
		+	[[z-mert]]

←上一版本		2014年12月9日 (二) 01:47的版本
第112行：		第112行：
	0.625 = fieldNorm(doc=0)		0.625 = fieldNorm(doc=0)
	0.6666667 = coord(2/3)		0.6666667 = coord(2/3)
		+
		+	=test result=