Is that really 1 byte for each document? Not 1 byte for each field of each document?
Thanks, Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Doron Cohen <[EMAIL PROTECTED]> > To: java-user@lucene.apache.org > Sent: Monday, August 18, 2008 12:11:28 AM > Subject: Re: Index of Lucene > > Norms information comes mainly from lengths of documents - allowing the > search time scoring to take into account the effect of document lengths > (actually > field length within a document). In practice, norms stored within the index > may include > other information, such as index time boosts - for a document, for a field. > A single > byte is stored for each field, - so for this the actual value is compressed. > At search > time, norms are loaded into memory, and so consume 1 byte for each document. > It is possible to disable norms for a field while indexing. This is > explained > better in the javadoc for Similarity, and here: > http://lucene.apache.org/java/2_3_2/scoring.html > > Doron > > On Mon, Aug 18, 2008 at 5:59 AM, blazingwolf7 wrote: > > > > > Hi, > > > > I am currently using Lucene for indexing. After a index a file, I will use > > LUKE to open it and check the index. And there is 1 part that I am curious > > about. In Luke, under the Document tab, I randomly select a document and > > display it. At the bottom will be 4 columns, Field, ITSVopLBC, Norm and > > String Value. > > > > I am wondering, what is Norm for? And where is it created during indexing > > time? Which method calculates it? > > > > Could anyone advise me on this? Thanks for the help > > -- > > View this message in context: > > http://www.nabble.com/Index-of-Lucene-tp19025490p19025490.html > > 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]
