Return-Path: Delivered-To: apmail-lucene-mahout-user-archive@minotaur.apache.org Received: (qmail 85466 invoked from network); 15 Jul 2009 12:53:04 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 15 Jul 2009 12:53:03 -0000 Received: (qmail 81765 invoked by uid 500); 15 Jul 2009 12:53:13 -0000 Delivered-To: apmail-lucene-mahout-user-archive@lucene.apache.org Received: (qmail 81708 invoked by uid 500); 15 Jul 2009 12:53:13 -0000 Mailing-List: contact mahout-user-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: mahout-user@lucene.apache.org Delivered-To: mailing list mahout-user@lucene.apache.org Received: (qmail 81698 invoked by uid 99); 15 Jul 2009 12:53:13 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 Jul 2009 12:53:13 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of srowen@gmail.com designates 209.85.219.226 as permitted sender) Received: from [209.85.219.226] (HELO mail-ew0-f226.google.com) (209.85.219.226) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 Jul 2009 12:53:03 +0000 Received: by ewy26 with SMTP id 26so5057514ewy.5 for ; Wed, 15 Jul 2009 05:52:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=Hl9L93ws1BZAjKccr5Gqr4c3JYvvIRoGEg+WIOSJC24=; b=sbm0B5iy3XlnsuT5MnOdt8Sfu+kzhNZe0RWYpbdrScRYByPrOWpR6d4EeSLqYEswWB tcno5sQ9cD3cGQY+0wIYmxFggFOOHYD/rjHMVtlckLN8Pa7w9qF15pE/TQHCapSdk2Dh iye8KgbwHnb69mGgLf4zu3LSsFgrfjaf2rG8U= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=CAMM3deQwNu3Lv9TXKG063185HZViN6WqYOuEfxEDf9A4qRXyK3xi08s1+5L52kFXU 4gYcjgxvp+3WwR/H6L6bej0g1GgyFDeSfyCMor6dFN4SHrVA/5kUzHXq2+L+w3vfoN0L G4D1YU4MeM5C28kc8TyVj2n333An3qOHbpNpo= MIME-Version: 1.0 Received: by 10.216.9.66 with SMTP id 44mr2079650wes.73.1247662363620; Wed, 15 Jul 2009 05:52:43 -0700 (PDT) In-Reply-To: References: <4A5DBEDA.5020700@mufin.com> Date: Wed, 15 Jul 2009 13:52:43 +0100 Message-ID: Subject: Re: problems with taste. From: Sean Owen To: mahout-user@lucene.apache.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org I have them now. Yes, again Thomas's analysis is correct about why there are no recommendations from the .txt file. See the previous messages about what to do. The other data file has a different issue. All the ratings are the same. Correlation-based similarity metrics will not work as they cannot define a similarity in such a case (correlation is undefined). It will be unable to give recommendations as a result. You need to try a different metric like TanimotoCoefficientSimilarity. If that works well, there is a way to make this a lot faster. We can discuss it next. On Wed, Jul 15, 2009 at 1:48 PM, Laya Patwa wrote: > There is a problem in the mailing system I guess. I am sending 1 file in 1 > mail. This has the code file. > > On Wed, Jul 15, 2009 at 2:15 PM, Sean Owen wrote: >> >> There is still only one text file attached. But anyway I believe Thomas >> has >> identified the problem. >> >> On Jul 15, 2009 1:03 PM, "Laya Patwa" wrote: >> >> You did not get the code? But I sent it. Anyways please find 3 files >> attached with this mail containing the code and the 2 data files. >> My apologies for the mistake. >> >> On Wed, Jul 15, 2009 at 1:57 PM, Sean Owen wrote: > > >> Thomas is right, you have... > >