From user-return-18741-apmail-mahout-user-archive=mahout.apache.org@mahout.apache.org Thu Nov 14 15:04:22 2013 Return-Path: X-Original-To: apmail-mahout-user-archive@www.apache.org Delivered-To: apmail-mahout-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 4585D10B2E for ; Thu, 14 Nov 2013 15:04:22 +0000 (UTC) Received: (qmail 88718 invoked by uid 500); 14 Nov 2013 15:04:19 -0000 Delivered-To: apmail-mahout-user-archive@mahout.apache.org Received: (qmail 88358 invoked by uid 500); 14 Nov 2013 15:04:15 -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 88349 invoked by uid 99); 14 Nov 2013 15:04:14 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Nov 2013 15:04:14 +0000 X-ASF-Spam-Status: No, hits=0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE,SPF_PASS,UNPARSEABLE_RELAY X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [216.82.251.16] (HELO mail1.bemta12.messagelabs.com) (216.82.251.16) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Nov 2013 15:04:07 +0000 Received: from [216.82.250.19:38290] by server-16.bemta-12.messagelabs.com id E8/D6-04980-256E4825; Thu, 14 Nov 2013 15:03:46 +0000 X-Env-Sender: NiMartin@pssd.com X-Msg-Ref: server-6.tower-87.messagelabs.com!1384441425!12929525!1 X-Originating-IP: [12.11.1.203] X-StarScan-Received: X-StarScan-Version: 6.9.13; banners=-,-,- X-VirusChecked: Checked Received: (qmail 26747 invoked from network); 14 Nov 2013 15:03:45 -0000 Received: from unknown (HELO whubprd01.main.pssworldmedical.com) (12.11.1.203) by server-6.tower-87.messagelabs.com with SMTP; 14 Nov 2013 15:03:45 -0000 Received: from WMBXPRD04.main.pssworldmedical.com ([fe80::e13f:a120:5736:4908]) by whubprd01.main.pssworldmedical.com ([::1]) with mapi id 14.02.0347.000; Thu, 14 Nov 2013 10:03:45 -0500 From: "Martin, Nick" To: "user@mahout.apache.org" Subject: RE: Seeing already purchased items in recommender output (running 0.7) Thread-Topic: Seeing already purchased items in recommender output (running 0.7) Thread-Index: Ac7gn2oAd/z1Nr31Q16GabYmoLP4bAAFwFtQACUIy+A= Date: Thu, 14 Nov 2013 15:03:44 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.14.5.235] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Virus-Checked: Checked by ClamAV on apache.org Update...--filterFile remedied it but I was operating under the impression = a filterFile wasn't exactly required.=20 -----Original Message----- From: Martin, Nick [mailto:NiMartin@pssd.com]=20 Sent: Wednesday, November 13, 2013 4:27 PM To: user@mahout.apache.org Subject: RE: Seeing already purchased items in recommender output (running = 0.7) https://drive.google.com/folderview?id=3D0B7c8ZMblZvRVUmFPeGlIdDJUV28&usp= =3Dsharing Figured it might help if I attach the input/output in case anyone wants to = have a look/run a test.=20 If you look at UserID 16240507 they purchased ItemID 1521 (rec_input.csv) a= nd the recommendation output gives ItemID 1521 as a recommendation (rec_out= .txt) -----Original Message----- From: Martin, Nick [mailto:NiMartin@pssd.com]=20 Sent: Wednesday, November 13, 2013 1:43 PM To: user@mahout.apache.org Subject: Seeing already purchased items in recommender output (running 0.7) Hi all, I'm running > mahout recommenditembased -s SIMILARITY_EUCLIDEAN_DISTANCE -i= /user/myname/somedir/Input/minm.csv -o /user/nyname/somedir/Output/ My input is the standard format: userid,itemid,pref but I found a customer = item recommendation for something a customer already purchased. Saw this: http://stackoverflow.com/questions/13822455/apache-mahout-distrib= uted-recommender-recommends-already-rated-items but it looked fairly old. Am I hitting a known bug I just haven't stumbled across yet?