From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00,FREEMAIL_FROM, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,e5c972d04da95d51 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-04-23 18:36:01 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!small1.nntp.aus1.giganews.com!nntp.giganews.com!nntp3.aus1.giganews.com!nntp.gbronline.com!news.gbronline.com.POSTED!not-for-mail NNTP-Posting-Date: Wed, 23 Apr 2003 20:36:00 -0500 Date: Wed, 23 Apr 2003 20:35:22 -0500 From: Wesley Groleau Reply-To: wesgroleau@despammed.com Organization: Ain't no organization here! User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2.1) Gecko/20021130 X-Accept-Language: en-us, en, es-mx, pt-br, fr-ca MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: If anybody wants to make something in Ada but do not know what References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: <_rSdnTCKWK8dojqjXTWcoQ@gbronline.com> NNTP-Posting-Host: 216.117.18.79 X-Trace: sv3-lzvFNsxDNMi2DUQw5tkjiD8ADHr3WJcPzH3Nl05N03kb7jHqUkZMAh14YLXqxsGgyZ69GtXVaVRH/7W!TGPIWFVd00Km9N61HBV9PupfFgeqpLGx9vWh/24XcSZcphKnAJ7bzOmGHAvFtucII8bMXxHJ3OrQ!VIze X-Complaints-To: abuse@gbronline.com X-DMCA-Complaints-To: abuse@gbronline.com X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.1 Xref: archiver1.google.com comp.lang.ada:36450 Date: 2003-04-23T20:35:22-05:00 List-Id: > Ada software engineering project. For instance, in pattern recognition there > is a well known balance between false positives and false negatives. As one > goes up, the other goes down. One approach that has worked for other No doubt that with many algorithms, a parameter change that decreases false negatives will increase false positives and vice versa. This is not necessarily true of a change in _algorithm_ It is quite conceivable that one algorithm might reduce _both_ compared to another algorithm. It is also true that with some algorithms, one can determine the reason for a false positive and add an explicit test for that reason, thereby reducing false positives with no change in false negatives.