Term Frequency in Lucene parlance = number of occurences of the term within a single document. If you're looking for "how many documents have term x" where x is unknown, see SimpleFacets in Solr http://lucene.apache.org/solr/api/org/apache/solr/request/SimpleFacets.html
----- Original Message ---- From: Erick Erickson <[EMAIL PROTECTED]> To: java-user@lucene.apache.org Sent: Wednesday, March 7, 2007 2:29:14 PM Subject: Re: Term Frequency within Hits See TermFreqVector, HitCollector, perhaps TopDocs, perhaps TermEnum. Make sure you create your index such that frequencies are stored (see the FAQ). Erick On 3/7/07, teramera <[EMAIL PROTECTED]> wrote: > > > So after I execute a search I end up with a 'Hits' object. The number of > Hits > is the order of a million. > What I want to do is from these Hits is extract term frequencies for a few > known fields. I don't have a global list of terms for any of the fields > but > want to generate the term frequency based on terms from the Hits. > > Iterating over the hits and doing this later is of course turning out to > be > very expensive. > Is there a known Lucene way of solving such a problem so that this > calculation happens as the hits are being accumulated? > Appreciate any pointers, > > -- > View this message in context: > http://www.nabble.com/Term-Frequency-within-Hits-tf3364987.html#a9362169 > Sent from the Lucene - Java Users mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
