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SOLR sort by relevancy

I need to sort a solr result by relevancy. I used the following code for sort:

fq={!tag=resourcetag}(post_type:resource AND (siec_database_item:no OR siec_database_item:"") )&showposts=10&solrsearch=1&paged=0&sortby=score desc

But it didn't get any result. I searched the web but received only theory about relevancy sort. I need some practical solution.

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SuUbha Avatar asked Feb 03 '17 07:02

SuUbha


People also ask

What is relevance in SOLR?

Relevance is the degree to which a query response satisfies a user who is searching for information. The relevance of a query response depends on the context in which the query was performed. A single search application may be used in different contexts by users with different needs and expectations.

What is score in SOLR?

The ranking function takes in information from a query and from each matching document. And for each document, the ranking function computes a score representing how well the document matches the query. The ranking function can be complicated; chapters 5–7 teach you how to modify the ranking function.


1 Answers

FYI showing one example I am just using id and score field for fl

http://localhost:8983/solr/test/select?fl=id,score&indent=on&q=ipod&wt=json

for query q=ipod we have 6 documents returned from solr, here is how it looks. You can notice docs are sorted on relevancy score value.(desc order, default)

response":{"numFound":6,"start":0,"maxScore":4.391201,"docs":[
      {
        "id":"IW-02",
        "score":4.391201},
      {
        "id":"F8V7067-APL-KIT",
        "score":4.1061177},
      {
        "id":"09",
        "score":3.690675},
      {
        "id":"01",
        "score":3.597126},
      {
        "id":"3007WFRD",
        "score":3.1348155},
      {
        "id":"MA147LL/A",
        "score":1.9562671}]

if you want results in ascending order, just add sort param to url &sort=score asc and results will change. you can do the same sorting with other fields as well. (ex: sort=price asc).

like image 162
Vinod Avatar answered Sep 20 '22 17:09

Vinod