Return-Path: Delivered-To: apmail-mahout-user-archive@www.apache.org Received: (qmail 76644 invoked from network); 14 Jan 2011 08:21:40 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 14 Jan 2011 08:21:40 -0000 Received: (qmail 29806 invoked by uid 500); 14 Jan 2011 08:21:39 -0000 Delivered-To: apmail-mahout-user-archive@mahout.apache.org Received: (qmail 29692 invoked by uid 500); 14 Jan 2011 08:21:36 -0000 Mailing-List: contact user-help@mahout.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@mahout.apache.org Delivered-To: mailing list user@mahout.apache.org Received: (qmail 29684 invoked by uid 99); 14 Jan 2011 08:21:35 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 14 Jan 2011 08:21:35 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_LOW,RFC_ABUSE_POST,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of ssc.open@googlemail.com designates 209.85.161.42 as permitted sender) Received: from [209.85.161.42] (HELO mail-fx0-f42.google.com) (209.85.161.42) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 14 Jan 2011 08:21:26 +0000 Received: by fxm11 with SMTP id 11so2358104fxm.1 for ; Fri, 14 Jan 2011 00:21:06 -0800 (PST) Received: by 10.223.98.193 with SMTP id r1mr421185fan.83.1294993266206; Fri, 14 Jan 2011 00:21:06 -0800 (PST) Received: from [192.168.0.101] (f052142219.adsl.alicedsl.de [78.52.142.219]) by mx.google.com with ESMTPS id y3sm360064fai.14.2011.01.14.00.21.04 (version=SSLv3 cipher=RC4-MD5); Fri, 14 Jan 2011 00:21:05 -0800 (PST) Message-ID: <4D30076F.3060809@apache.org> Date: Fri, 14 Jan 2011 09:21:03 +0100 From: Sebastian Schelter Reply-To: ssc@apache.org User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: user@mahout.apache.org Subject: Re: Mahout 0.4 seems recommend user's existed items to user. References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org Hi, which recommender are you talking about? The distributed recommender does not do this, I checked it and will include a test for that into our unit tests. --sebastian On 14.01.2011 07:13, han henry wrote: > Hi,All > > Now I have a issue ,Mahout 0.4 seems recommend user's existed items to user. > > I remembered that Mahout has skips those user's existed items when recommend > items to user. > > But I have not found the logic for skipping the existed items in Mahout > 0.4. > > Can anyone confirm that or let me know where can find the logic for skipping > existed items ? > > Best Regards, >