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	<title>丕子 &#187; MCS</title>
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		<title>关于多分类器(系统)集成以及其性能(MCS)</title>
		<link>http://www.zhizhihu.com/html/y2009/447.html</link>
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		<pubDate>Tue, 13 Oct 2009 12:54:24 +0000</pubDate>
		<dc:creator>丕子</dc:creator>
				<category><![CDATA[科研]]></category>
		<category><![CDATA[MCS]]></category>
		<category><![CDATA[周志华]]></category>
		<category><![CDATA[机器学习]]></category>
		<category><![CDATA[集成学习]]></category>

		<guid isPermaLink="false">http://多分类器，顾名思义，多个分类器进行集成学习，用多个机器学习算法进行训练和集成。一篇论文中已经证明其效果肯定比任何一个要好。好多少？在于度量。多个机器学习算法怎么集成，有一定的原则：!--more--1、各个分类器性能不能太差，正确率都保证在50%以上；2、各个分类器的原理最好不要重叠或者重叠尽量的少；举个例子：人的识别-人脸分类器、指纹分类器、声音、虹膜、步态等等，几个分类器集成之后，正确率肯定很高了，当然，效率有待于你怎么去优化。SVM一般就很慢，看你怎么用了，LIb</guid>
		<description><![CDATA[多分类器，顾名思义，多个分类器进行集成学习，用多个机器学习算法进行训练和集成。一篇论文中已经证明其效果肯定比任何一个要好。好多少？在于度量。 多个机器学习算法怎么集成，有一定的原则： 1、各个分类器性能不能太差，正确率都保证在50%以上； 2、各个分类器的原理最好不要重叠或者重叠尽量的少； 举个例子：人的识别-人脸分类器、指纹分类器、声音、虹膜、步态等等，几个分类器集成之后，正确率肯定很高了，当然，效率有待于你怎么去优化。SVM一般就很慢，看你怎么用了，LIbsvm 听说比较快。 关于分类器的选择，南大周志华教授做过一定的研究，可以去LAMDA实验室去找找。 多分类器系统MCS目前有国际会议，可以适当关注下，集成学习可以解决很多问题。不妨做相关工作的应用下看看结果。 最近我正在用MCS解决某个问题。抓紧时间写Paper。 若您转载请注明出处：http://blog.shamoxia.com/html/y2009/447.html 相关文章在新的划时代的机器学习框架诞生之前，关注下“集成学习(Ensemble Learning)” (2)周志华09发的文章(10月之前) (0)关注下第一届亚洲机器学习会议-ACML&#8217;09 (0)大师之人-想跟南大周志华读研或读博么？ (1)People Counting in Video (9)Free Mind：机器学习物语(1)-世界观设定 (0)ICML2007上的两篇文章：Boosting for transfer learning和Self-taught learning (7)关于MINDS研讨会的讨论及报告下载 (3)毕业之际，弄了个机器学习交流的平台 (6)计算机视觉领域的一些牛人博客 (7)<table class="wumii-related-items" cellspacing="0" cellpadding="3" border="0"  style="clear: both;">
    
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			<content:encoded><![CDATA[<p>多分类器，顾名思义，多个分类器进行集成学习，用多个机器学习算法进行训练和集成。一篇论文中已经证明其效果肯定比任何一个要好。好多少？在于度量。</p>
<p>多个机器学习算法怎么集成，有一定的原则：<span id="more-447"></span></p>
<p>1、各个分类器性能不能太差，正确率都保证在50%以上；</p>
<p>2、各个分类器的原理最好不要重叠或者重叠尽量的少；</p>
<p>举个例子：人的识别-人脸分类器、指纹分类器、声音、虹膜、步态等等，几个分类器集成之后，正确率肯定很高了，当然，效率有待于你怎么去优化。SVM一般就很慢，看你怎么用了，LIbsvm 听说比较快。</p>
<p>关于分类器的选择，南大周志华教授做过一定的研究，可以去<a href="http://lamda.nju.edu.cn" target="_blank">LAMDA</a>实验室去找找。</p>
<p>多分类器系统MCS目前有国际会议，可以适当关注下，集成学习可以解决很多问题。不妨做相关工作的应用下看看结果。</p>
<p>最近我正在用MCS解决某个问题。抓紧时间写Paper。</p>
<p><span style="color: #ff0000;">若您转载请注明出处：</span><a href="http://blog.shamoxia.com/html/y2009/447.html"><span style="color: #ff0000;">http://blog.shamoxia.com/html/y2009/447.html</span></a></p>
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