如何得到更好的结果

Question

null

field name=“path_exact”type=“string”indexed=“true”stored=“true”termvectors=“true”/>

field name=“title”type=“text_general”indexed=“true”stored=“true”multivalued=“true”termvectors=“true”/>

提到的唯一键

使用below命令在solr中创建索引-

{“PATH_EXACT”：“ID1”,“TITLE”：“X1”}

{“PATH_EXACT”：“ID2”,“TITLE”：“X12”}

结果-

 <lst name="moreLikeThis">
     <result name="id1" numFound="0" start="0"/>
    <result name="id2" numFound="0" start="0"/>

谢谢你的帮助！

Answer 1

我有点搞不清楚您到底做了什么，但是如果您想要设置MLT，您可以在核心目录中的solrconfig.xml中添加一个请求处理程序（我假设是Solr4.0或更高版本）。所以大致如下：

    <!-- More Like This -->
<requestHandler name="/mlt" class="solr.MoreLikeThisHandler">
    <lst name="defaults">
        <!--similar documents defaults-->
        <!--The fields to use for similarity-->
           <str name="mlt.fl">article_title, abstract_text</str>
        <!--Minimum Term Frequency - the frequency below which terms will be ignored in the source doc.-->
           <str name="mlt.mintf">2</str>
        <!--Minimum Document Frequency - the frequency at which words will be ignored which do not occur in at least this many docs.-->
           <str name="mlt.mintf">5</str>
        <!--Minimum word length below which words will be ignored.-->
           <str name="mlt.mintf">0</str>
        <!--Maximum word length above which words will be ignored.-->
           <str name="mlt.mintf">0</str>
        <!--Minimum number of query terms that will be included in any generated query.-->
           <str name="mlt.mintf">25</str>
        <!--Maximum number of query terms that will be included in any generated query.-->
           <str name="mlt.mintf">25</str>
    </lst>
</requestHandler>

然后只需在Solr上执行普通HTTP请求：

http://localhost:8983/solr/mlt?q="myquery"

或者在向“/select？”发送请求时只设置“&mlt=true”标志。请求处理程序，如solr Wiki提供的示例：

http://localhost:8983/solr/select?q=apache&mlt=true&mlt.fl=manu,cat&mlt.mindf=1&mlt.mintf=1&fl=id,score