Return-Path: Delivered-To: apmail-lucene-java-user-archive@www.apache.org Received: (qmail 30315 invoked from network); 2 Jun 2010 07:19:41 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 2 Jun 2010 07:19:41 -0000 Received: (qmail 4927 invoked by uid 500); 2 Jun 2010 07:19:39 -0000 Delivered-To: apmail-lucene-java-user-archive@lucene.apache.org Received: (qmail 4864 invoked by uid 500); 2 Jun 2010 07:19:39 -0000 Mailing-List: contact java-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: java-user@lucene.apache.org Delivered-To: mailing list java-user@lucene.apache.org Received: (qmail 4856 invoked by uid 99); 2 Jun 2010 07:19:38 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 Jun 2010 07:19:38 +0000 X-ASF-Spam-Status: No, hits=-0.2 required=10.0 tests=AWL,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of fancyerii@gmail.com designates 209.85.212.176 as permitted sender) Received: from [209.85.212.176] (HELO mail-px0-f176.google.com) (209.85.212.176) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 02 Jun 2010 07:19:32 +0000 Received: by pxi10 with SMTP id 10so3848711pxi.35 for ; Wed, 02 Jun 2010 00:19:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type:content-transfer-encoding; bh=Q6TpC1+FUJ5SBcDjpnM5CgjoCUaKm9uROEbvnzdm+DA=; b=oEYWtuOflY3JLe/SXC9dvf3SFtS7aB7xwsfgll4+1Gma70AoXyIzD8QYJ2lf7x4x1W Ts82QSJPIi8FV7EpSxiLL04bCYi/7FEU4im69Bq6igTd8eiYOjfh0bMY9pYTpNjvA/JV Ykc3vdpA5SN8ujV1Qg6ndpzu2XbhAIfb2Wvbg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=bBa71aM3hejaYsV0+EYyno1AurbX97HmwXynJ2aqckUqIbuiVd7BWxxOuSCqxBYbAF BnQDG7z2UehZRh/Sne95zOb6RC00LZZ3F276Lc6yAV5JVJsSI5MVFfTWLsfc/Gm+ej9p 0cP4RDgO7OG1XLSlTkRUTBbVuvV2IYtjjNjPw= MIME-Version: 1.0 Received: by 10.141.13.14 with SMTP id q14mr6048900rvi.28.1275463152045; Wed, 02 Jun 2010 00:19:12 -0700 (PDT) Received: by 10.142.191.18 with HTTP; Wed, 2 Jun 2010 00:19:12 -0700 (PDT) Date: Wed, 2 Jun 2010 15:19:12 +0800 Message-ID: Subject: about norm From: Li Li To: java-user@lucene.apache.org Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: quoted-printable in javadoc http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/search= /Similarity.html#formula_norm norm(t,d) =3D doc.getBoost() =A1=A4 lengthNorm(field) =A1=A4 =A1= =C7 f.getBoost() field f in d named as t whre is field come from in lengthNorm(field)? In my option, term t may appear in a doc d many times with different fields= . So =A1=C7 f.getBoost() field f in d named as t makes sense. But Why there is only one lengthNorm(field) ? does it mean that norm(t,d)=3Dnorm(t.text, t.field, d)? That's is-- every doc,every field,every term , there is a norm value ? --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org For additional commands, e-mail: java-user-help@lucene.apache.org