From dev-return-45553-archive-asf-public=cust-asf.ponee.io@ignite.apache.org Mon Apr 1 11:50:05 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 118CA180621 for ; Mon, 1 Apr 2019 13:50:04 +0200 (CEST) Received: (qmail 10859 invoked by uid 500); 1 Apr 2019 11:50:04 -0000 Mailing-List: contact dev-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list dev@ignite.apache.org Received: (qmail 10845 invoked by uid 99); 1 Apr 2019 11:50:04 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 01 Apr 2019 11:50:04 +0000 Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 92A1FE0016 for ; Mon, 1 Apr 2019 11:50:03 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 5048C24422 for ; Mon, 1 Apr 2019 11:50:03 +0000 (UTC) Date: Mon, 1 Apr 2019 11:50:03 +0000 (UTC) From: "Alexey Platonov (JIRA)" To: dev@ignite.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (IGNITE-11664) [ML] Use Double.NaN as default values for missing values in Vector MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Alexey Platonov created IGNITE-11664: ---------------------------------------- Summary: [ML] Use Double.NaN as default values for missing values in Vector Key: IGNITE-11664 URL: https://issues.apache.org/jira/browse/IGNITE-11664 Project: Ignite Issue Type: Improvement Components: ml Reporter: Alexey Platonov Currently, we use 0.0 value for default values in vectors if a value is missing. But this way contradicts to preprocessors politics where for missing values Double.NaN is using. Moreover, Double.NaN is a more convenient value for missing feature values. -- This message was sent by Atlassian JIRA (v7.6.3#76005)