Re: Understanding the MoreLikeThis Handler

[Sreekant Sreedharan]

I seem to be missing something. 

I copied the configuration for the request handler in my solr config. It now
looks like this

  <requestHandler name="/mlt" class="solr.MoreLikeThisHandler">
  <lst name="defaults">
    <str name="mlt.boost">true</str>
    <str name="mlt.qf">
      title^2.0 description^1.5 content^0.5
    </str>
    <str name="mlt.fl">title,description,content</str>
    <int name="mlt.mintf">1</int>
    <int name="mlt.mindf">1</int>
  </lst>
  </requestHandler>
  


However, my query still results in no relevant results

mlt?q=id:86C544948369405D822FA6FBE5EBD49E&wt=json&indent=true&mlt.match.include=true

{
  "responseHeader":{
    "status":0,
    "QTime":3},
  "match":{"numFound":1,"start":0,"docs":[
      {
        "id":"86C544948369405D822FA6FBE5EBD49E",
        "ar":"EEJ6PJ",
        "caption":"Commuters in Subway Car",
        "age":31028,
        "width":5215,
        "height":3513,
        "mr":false,
        "pr":false,
        "lic":"4",
        "pseudo":"© Patrik Giardino/Corbis",
        "pseudoid":"C195CB034002405EA4064C91F53DCC57",
        "contributorid":"3FED3D3D18F84362A53C91700E1807BF",
        "contributor":"Flirt",
       
"thumburl":"http://c2.alamy.com/thumbs/4/86C54494-8369-405D-822F-A6FBE5EBD49E/EEJ6PJ.jpg";,
        "_version_":1504126507594809420}]
  },
  "response":{"numFound":0,"start":0,"docs":[]
  }}

Whereas the following standard SOLR query results in many more results with
the same match.

select?q=*:*&wt=json&fq=contributor:Flirt&rows=10&fl=id,contributor

{"responseHeader":{"status":0,"QTime":1,"params":{"q":"*:*","fl":"id,contributor","fq":"contributor:Flirt","rows":"10","wt":"json"}},"response":{"numFound":1138,"start":0,"docs":[{"id":"8607CAC2DC4E436DA40C0061D7A3E97F","contributor":"Flirt"},{"id":"F0F2B8FFF7884ADEB92300CCD2377E0A","contributor":"Flirt"},{"id":"EE0D9DF14DCE42129C04009C7D0A98A2","contributor":"Flirt"},{"id":"D42E36FD6BDA4055B7870128A347D969","contributor":"Flirt"},{"id":"8C0B2807F22045EA95B0011083C9AB62","contributor":"Flirt"},{"id":"81720720752F4CA1A32C01D155D478C0","contributor":"Flirt"},{"id":"B7E026E86C354FF1AB3201E672AE1DED","contributor":"Flirt"},{"id":"AF46D07BFABB45AAA71B01E68A42AB11","contributor":"Flirt"},{"id":"1C7FECBAE29A41CC861401E02C925B4C","contributor":"Flirt"},{"id":"C2E261740D76475BA17B0212A5D4DB28","contributor":"Flirt"}]}}


So I am clearly missing something...



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