have you checked out the deduplication process that's available at indexing time ? This includes a fuzzy hash algorithm .
http://wiki.apache.org/solr/Deduplication -Simon On Thu, Jun 23, 2011 at 5:55 AM, Pranav Prakash <pra...@gmail.com> wrote: > This approach would definitely work is the two documents are *Exactly* the > same. But this is very fragile. Even if one extra space has been added, the > whole hash would change. What I am really looking for is some %age > similarity between documents, and remove those documents which are more than > 95% similar. > > *Pranav Prakash* > > "temet nosce" > > Twitter <http://twitter.com/pranavprakash> | Blog <http://blog.myblive.com> | > Google <http://www.google.com/profiles/pranny> > > > On Thu, Jun 23, 2011 at 15:16, Omri Cohen <o...@yotpo.com> wrote: > >> What you need to do, is to calculate some HASH (using any message digest >> algorithm you want, md5, sha-1 and so on), then do some reading on solr >> field collapse capabilities. Should not be too complicated.. >> >> *Omri Cohen* >> >> >> >> Co-founder @ yotpo.com | o...@yotpo.com | +972-50-7235198 | +972-3-6036295 >> >> >> >> >> My profiles: [image: LinkedIn] <http://www.linkedin.com/in/omric> [image: >> Twitter] <http://www.twitter.com/omricohe> [image: >> WordPress]<http://omricohen.me> >> Please consider your environmental responsibility. Before printing this >> e-mail message, ask yourself whether you really need a hard copy. >> IMPORTANT: The contents of this email and any attachments are confidential. >> They are intended for the named recipient(s) only. If you have received >> this >> email by mistake, please notify the sender immediately and do not disclose >> the contents to anyone or make copies thereof. >> Signature powered by >> < >> http://www.wisestamp.com/email-install?utm_source=extension&utm_medium=email&utm_campaign=footer >> > >> WiseStamp< >> http://www.wisestamp.com/email-install?utm_source=extension&utm_medium=email&utm_campaign=footer >> > >> >> >> >> ---------- Forwarded message ---------- >> From: Pranav Prakash <pra...@gmail.com> >> Date: Thu, Jun 23, 2011 at 12:26 PM >> Subject: Removing duplicate documents from search results >> To: solr-user@lucene.apache.org >> >> >> How can I remove very similar documents from search results? >> >> My scenario is that there are documents in the index which are almost >> similar (people submitting same stuff multiple times, sometimes different >> people submitting same stuff). Now when a search is performed for >> "keyword", >> in the top N results, quite frequently, same document comes up multiple >> times. I want to remove those duplicate (or possible duplicate) documents. >> Very similar to what Google does when they say "In order to show you most >> relevant result, duplicates have been removed". How can I achieve this >> functionality using Solr? Does Solr has an implied or plugin which could >> help me with it? >> >> >> *Pranav Prakash* >> >> "temet nosce" >> >> Twitter <http://twitter.com/pranavprakash> | Blog <http://blog.myblive.com >> > >> | >> Google <http://www.google.com/profiles/pranny> >> >
