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 0CD35E098 for ; Mon, 7 Jan 2013 00:46:43 +0000 (UTC) Received: (qmail 32521 invoked by uid 500); 7 Jan 2013 00:46:41 -0000 Delivered-To: apmail-mahout-user-archive@mahout.apache.org Received: (qmail 32366 invoked by uid 500); 7 Jan 2013 00:46:40 -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 32356 invoked by uid 99); 7 Jan 2013 00:46:40 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 07 Jan 2013 00:46:40 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of ted.dunning@gmail.com designates 209.85.223.182 as permitted sender) Received: from [209.85.223.182] (HELO mail-ie0-f182.google.com) (209.85.223.182) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 07 Jan 2013 00:46:35 +0000 Received: by mail-ie0-f182.google.com with SMTP id s9so22667154iec.27 for ; Sun, 06 Jan 2013 16:46:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:in-reply-to:references:from:date:message-id :subject:to:content-type; bh=GMJkSXBpg5SK2d2RXFNlb7GK52iL+kAkqSS2KvvbxQA=; b=yvuQwvdIkeIqSGyPfwgkk8iLJNljLR7jdfi/4cm3WLZuy5DXicq3X2CESy578EHYgY N5R1d2OHapvy5jaBj1sHp8qWxoRPHlt8MPrgXLsvcPnjN+1uwHDjP8FHpPsF+MkCd/22 s/5bKwpf+6SM3RjwYF15E4SXpo2/FFLgL+CObltlD1La5u2Dp6tOitDGEppGczgBayrf ra4pQCskgh/nUYmotlsqhp4MS28eOvOAGW6mAf67e4l7Yz7FLVZCsx3dQ8g+Gy7igGvt Hd/TWNiIHyyAfcaNiB4pvsYinAfYNOzo9dbp7daP8+sKkZ5qJvMAokTySI24zpJXV53m AHQg== X-Received: by 10.50.13.138 with SMTP id h10mr4403112igc.55.1357519575160; Sun, 06 Jan 2013 16:46:15 -0800 (PST) MIME-Version: 1.0 Received: by 10.64.133.137 with HTTP; Sun, 6 Jan 2013 16:45:45 -0800 (PST) In-Reply-To: <86024921ECCEE245B5F041F56B954F96146E9BCCC9@EMV05-UKBR.domain1.systemhost.net> References: <86024921ECCEE245B5F041F56B954F96146E9BCCC6@EMV05-UKBR.domain1.systemhost.net> <86024921ECCEE245B5F041F56B954F96146E9BCCC7@EMV05-UKBR.domain1.systemhost.net> <86024921ECCEE245B5F041F56B954F96146E9BCCC9@EMV05-UKBR.domain1.systemhost.net> From: Ted Dunning Date: Sun, 6 Jan 2013 16:45:45 -0800 Message-ID: Subject: Re: HMM - baum welch and hmmpredict To: user@mahout.apache.org Content-Type: multipart/alternative; boundary=f46d044468e30d987804d2a828ca X-Virus-Checked: Checked by ClamAV on apache.org --f46d044468e30d987804d2a828ca Content-Type: text/plain; charset=UTF-8 On Sun, Jan 6, 2013 at 1:35 PM, wrote: > Hi, > > I've been using the standalone trainer. > > I'll have a look at the log scaled trainers - thanks for the tip! > > Log scaling is absolutely required. Otherwise, you start dealing with numerical underflow amazingly quickly. --f46d044468e30d987804d2a828ca--