To use knnSearch, you need to submit a POST request to the Stream request handler.
Using your example query, you will need to rewrite them from this : *http://[SOLR* URL]/mlt?q=sjkey:1414462-25600-5258&wt=json&indent=true&mlt=true&rows=100&mlt.fl=jobdescription&mlt.mindf=1&mlt.mintf=1&fl=jobtitle,jobdescription&fq=siteid:5258 to this (using curl as an example to send POST request) : curl --data-urlencode 'expr=knnSearch([collection_name], id="1414462-25600-5258", qf="jobdescription", k=100, fl="jobtitle,jobdescription,score", sort="score desc", fq="siteid:5258", mintf=1, mindf=1)' http://[SOLRURL]/stream Note that this assume your document ID is sjkey. More detailed documentation on how Stream handler works can be seen here, https://lucene.apache.org/solr/guide/8_1/streaming-expressions.html. Best wishes, Chee Yee On Fri, 13 Sep 2019 at 17:57, Srisatya Pyla <srisp...@in.ibm.com> wrote: > Hi Chee Yee Lim, > > > Thank you for your quick response. > We do not find much documentation on knnsearch on how to do use that. > Could you please guide us with more info on how this can be used? > > Can we use this the way we use Solr by querying with Solr URL like > http://[SOLR URL]/mlt.... ? OR any other way? > And also please provide with any more detailed documentation if you have > any. > > > Regards, > ------------------------------ > *SST Narasimha Rao Pyla* > > *IBM Talent Management SolutionsMobile :*+91 9849315546 > *E-mail :**srisp...@in.ibm.com* <hemanth.kadamb...@in.ibm.com> > [image: IBM] > > IBM Visakha Hills > Visakhapatnam, AP 530045 > India > > > > > > > > > ----- Original message ----- > From: Chee Yee Lim <cheeyee....@gmail.com> > To: solr-user@lucene.apache.org > Cc: Archana Gavini1 <agavi...@in.ibm.com>, Rajeev Kasarabada1 < > kasar...@in.ibm.com> > Subject: [EXTERNAL] Re: Need more info on MLT (More Like This) feature > Date: Thu, Sep 12, 2019 6:43 PM > > I've been working with MLT handler (Solr 8.1.1) by calling it the same way > you did, *http://[SOLR*URL]/mlt. But the response is very unreliable with > 90% of the same queries resulting in Java null pointer exception, and only > 10% returning expected response. I do not know what is the cause of this. > > I overcame this problem by using knnSearch via Stream handler ( > *https://lucene.apache.org/solr/guide/8_1/stream-source-reference.html#knnsearch* > <https://lucene.apache.org/solr/guide/8_1/stream-source-reference.html#knnsearch>). > It is just a wrapper on MLT, and it works brilliantly. It is worth checking > it out if you are running Solr in cloud mode. > > If you pass the fl="score"&sort="score desc" to knnSearch, you will be > able to get the results sorted by matching scores. > > Best wishes, > Chee Yee > > On Thu, 12 Sep 2019 at 19:44, Srisatya Pyla <*srisp...@in.ibm.com* > <srisp...@in.ibm.com>> wrote: > Hi Solr Seatch Team, > > I am a developer from IBM Kenexa Brassring. We are using Solr Search > engine for searching jobs in our applications. > We are planning to use MLT feature to get the similar matching documents > (jobs) based on one document (job). > > When trying to explore this option, we are using matching field as > JobDescription of the job and we are getting some unrelated documents in > the MLT results which are not expected. > > The query like below: > > *http://[SOLR* > URL]/mlt?q=sjkey:1414462-25600-5258&wt=json&indent=true&mlt=true&rows=100&mlt.fl=jobdescription&mlt.mindf=1&mlt.mintf=1&fl=jobtitle,jobdescription&fq=siteid:5258 > > > *We have few questions*: > 1) Is there any way we can get the matching score for each of the matching > document we get in the MLT results, so that we can get the sorting done on > the score to have the highest matching document at the top of the result. > > 2) Are there any best practices using MLT Handler? > > > Regards, > ------------------------------ > *SST Narasimha Rao Pyla* > > *IBM Talent Management SolutionsMobile :*+91 9849315546 > *E-mail :**srisp...@in.ibm.com* <hemanth.kadamb...@in.ibm.com> > > > IBM Visakha Hills > Visakhapatnam, AP 530045 > India > > > > > > > >
