Return-Path: X-Original-To: apmail-lucene-java-user-archive@www.apache.org Delivered-To: apmail-lucene-java-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id E13D09104 for ; Wed, 15 Feb 2012 14:40:58 +0000 (UTC) Received: (qmail 38605 invoked by uid 500); 15 Feb 2012 14:40:56 -0000 Delivered-To: apmail-lucene-java-user-archive@lucene.apache.org Received: (qmail 38559 invoked by uid 500); 15 Feb 2012 14:40:56 -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 38549 invoked by uid 99); 15 Feb 2012 14:40:56 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 Feb 2012 14:40:56 +0000 X-ASF-Spam-Status: No, hits=2.2 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (athena.apache.org: local policy) Received: from [209.85.216.48] (HELO mail-qw0-f48.google.com) (209.85.216.48) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 Feb 2012 14:40:50 +0000 Received: by qauh8 with SMTP id h8so1258921qau.14 for ; Wed, 15 Feb 2012 06:40:29 -0800 (PST) Received: by 10.229.102.71 with SMTP id f7mr15973458qco.120.1329316829326; Wed, 15 Feb 2012 06:40:29 -0800 (PST) Received: from [192.168.2.15] (static-68-236-181-73.ny325.east.verizon.net. [68.236.181.73]) by mx.google.com with ESMTPS id f12sm579250qan.1.2012.02.15.06.40.28 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 15 Feb 2012 06:40:28 -0800 (PST) From: Peyman Faratin Content-Type: multipart/alternative; boundary="Apple-Mail=_DE665FC4-7300-4696-AC25-4FDAC3C0FCF7" Subject: SweetSpotSimilarity Date: Wed, 15 Feb 2012 09:40:26 -0500 Message-Id: <3E8CC29E-6584-4A54-B554-F3784B9E8755@robustlinks.com> To: java-user@lucene.apache.org Mime-Version: 1.0 (Apple Message framework v1251.1) X-Mailer: Apple Mail (2.1251.1) X-Gm-Message-State: ALoCoQnLOTqo3IC2tORJ+nGgU8dVlayun33PSeB7ge+xTVZj84FkjYBhxP5MNn3kWGi5Yn/raWrS --Apple-Mail=_DE665FC4-7300-4696-AC25-4FDAC3C0FCF7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi I have a noobie question. I am trying to use the SweetSpotSimilarity = (SSS) class. = http://lucene.apache.org/core/old_versioned_docs/versions/3_5_0/api/contri= b-misc/org/apache/lucene/misc/SweetSpotSimilarity.html I understand the scoring behavior of Lucene = http://lucene.apache.org/core/old_versioned_docs/versions/3_5_0/api/all/or= g/apache/lucene/search/Similarity.html And I am aware that SweetSpotSimilarity resulted from this paper http://trec.nist.gov/pubs/trec16/papers/ibm-haifa.mq.final.pdf However, I was wondering if there was a resource that explained (and = gave examples) of how SSS works and what each parameter (hyperbolic, = etc) means. I know this is a Lucene list but I am actually trying to use = SSS in solr. I am aware of SOLR-1365 patch that makes configuring SSS = easier (in the schema.xml)=20 https://issues.apache.org/jira/browse/SOLR-1365 but I am having trouble understanding what some of the 13 parameters are = and how they map to SSS.=20 Thank you Peyman=20 --Apple-Mail=_DE665FC4-7300-4696-AC25-4FDAC3C0FCF7--