<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8">
<meta name="generator" content="pdf2htmlEX">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css">
<link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css">
<link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/62758c19602a7856fe983668/raw.css">
<script src="https://static.pudn.com/base/js/compatibility.min.js"></script>
<script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script>
<script>
try{
pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({});
}catch(e){}
</script>
<title></title>
</head>
<body>
<div id="sidebar" style="display: none">
<div id="outline">
</div>
</div>
<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62758c19602a7856fe983668/bg1.jpg"><div class="c x0 y1 w2 h2"><div class="t m0 x1 h3 y2 ff1 fs0 fc0 sc0 ls0 ws0">图像分类实验报告</div><div class="t m0 x2 h4 y3 ff2 fs1 fc0 sc1 ls0 ws0">1<span class="_ _0"></span><span class="ff1">、实<span class="_ _0"></span>验<span class="_ _0"></span>目的<span class="_ _0"></span>;<span class="_ _0"></span> <span class="_ _0"></span>使用<span class="_ _0"></span>一<span class="_ _0"></span>种监<span class="_ _0"></span>督<span class="_ _0"></span>学<span class="_ _0"></span>习方<span class="_ _0"></span>法<span class="_ _0"></span>和<span class="_ _0"></span>非监<span class="_ _0"></span>督<span class="_ _0"></span>学习<span class="_ _0"></span>方<span class="_ _0"></span>法<span class="_ _0"></span>,实<span class="_ _0"></span>现<span class="_ _0"></span>图像<span class="_ _0"></span>分<span class="_ _0"></span>类<span class="_ _0"></span>。图</span></div><div class="t m0 x3 h4 y4 ff1 fs1 fc0 sc1 ls0 ws0">像包括恐龙和汽车两种。</div><div class="t m0 x2 h4 y5 ff2 fs1 fc0 sc1 ls0 ws0">2<span class="_ _0"></span><span class="ff1">、实<span class="_ _0"></span>验<span class="_ _0"></span>思想<span class="_ _0"></span>;<span class="_ _0"></span> <span class="_ _0"></span>首先<span class="_ _0"></span>借<span class="_ _0"></span>鉴<span class="_ _1"> </span></span>Bag-of<span class="_ _2"></span>-<span class="_ _2"></span>visual-<span class="_ _0"></span>word<span class="_ _2"></span>s<span class="_ _1"> </span><span class="ff1">算法<span class="_ _0"></span>,<span class="_ _0"></span>对<span class="_ _0"></span>所有<span class="_ _0"></span>图<span class="_ _0"></span>像向<span class="_ _0"></span>量<span class="_ _0"></span>进<span class="_ _0"></span>行聚</span></div><div class="t m0 x3 h4 y6 ff1 fs1 fc0 sc1 ls0 ws0">类<span class="_ _3"></span>分<span class="_ _3"></span>析<span class="_ _3"></span>;<span class="_ _3"></span>再<span class="_ _3"></span>以<span class="_ _4"></span>图<span class="_ _3"></span>片<span class="_ _3"></span>为<span class="_ _3"></span>单<span class="_ _3"></span>位<span class="_ _3"></span>,<span class="_ _4"></span>根<span class="_ _3"></span>据<span class="_ _3"></span>聚<span class="_ _3"></span>类<span class="_ _3"></span>结<span class="_ _3"></span>果<span class="_ _4"></span>对<span class="_ _3"></span>图<span class="_ _3"></span>片<span class="_ _3"></span>中<span class="_ _3"></span>所<span class="_ _3"></span>有<span class="_ _4"></span>向<span class="_ _3"></span>量</div><div class="t m0 x3 h4 y7 ff1 fs1 fc0 sc1 ls0 ws0">(<span class="_ _0"></span><span class="ff2">128<span class="_ _1"> </span></span>维)<span class="_ _0"></span>进<span class="_ _0"></span>行<span class="_ _0"></span>分<span class="_ _0"></span>类<span class="_ _0"></span>,<span class="_ _0"></span>并<span class="_ _0"></span>形<span class="_ _0"></span>成<span class="_ _5"></span>该<span class="_ _0"></span>图<span class="_ _0"></span>片<span class="_ _0"></span>特<span class="_ _0"></span>有<span class="_ _0"></span>的<span class="_ _0"></span>向<span class="_ _0"></span>量<span class="_ _0"></span>(<span class="_ _0"></span>该<span class="_ _0"></span>向<span class="_ _0"></span>量<span class="_ _0"></span>的<span class="_ _5"></span>维</div><div class="t m0 x3 h4 y8 ff1 fs1 fc0 sc1 ls0 ws0">数等<span class="_ _0"></span>于<span class="_ _0"></span>聚<span class="_ _0"></span>类<span class="_ _0"></span>结<span class="_ _0"></span>果<span class="_ _0"></span>的<span class="_ _0"></span>个数<span class="_ _5"></span>),<span class="_ _0"></span>对<span class="_"> </span><span class="ff2">N<span class="_ _6"> </span></span>个图<span class="_ _0"></span>片<span class="_ _0"></span>进<span class="_ _0"></span>行<span class="_ _0"></span>此<span class="_ _0"></span>种<span class="_ _0"></span>操<span class="_ _0"></span>作;<span class="_ _5"></span>然后<span class="_ _0"></span>对</div><div class="t m0 x3 h4 y9 ff1 fs1 fc0 sc1 ls0 ws0">该<span class="_ _6"> </span><span class="ff2">N<span class="_ _7"> </span></span>个图片标记分类,使用<span class="_ _6"> </span><span class="ff2">SVM<span class="_ _7"> </span></span>模型进行学习;最后,与之前</div><div class="t m0 x3 h4 ya ff2 fs1 fc0 sc1 ls0 ws0">N<span class="_ _6"> </span><span class="ff1">个<span class="_ _5"></span>图<span class="_ _0"></span>片<span class="_ _0"></span>操<span class="_ _0"></span>作<span class="_ _5"></span>相<span class="_ _0"></span>同<span class="_ _0"></span>,<span class="_ _0"></span>对<span class="_ _5"></span>所<span class="_ _0"></span>有<span class="_ _0"></span>图<span class="_ _0"></span>片<span class="_ _5"></span>进<span class="_ _0"></span>行<span class="_ _0"></span>操<span class="_ _0"></span>作<span class="_ _5"></span>,<span class="_ _0"></span>得<span class="_ _0"></span>到<span class="_ _0"></span>对<span class="_ _5"></span>应<span class="_ _0"></span>向<span class="_ _0"></span>量<span class="_ _0"></span>,<span class="_ _5"></span>并</span></div><div class="t m0 x3 h4 yb ff1 fs1 fc0 sc1 ls0 ws0">进行标记,输<span class="_ _0"></span>入<span class="_ _6"> </span><span class="ff2">SVM<span class="_ _6"> </span></span>模型进行<span class="_ _0"></span>分类测试(在<span class="_ _0"></span>本实验中对测<span class="_ _0"></span>试样</div><div class="t m0 x3 h4 yc ff1 fs1 fc0 sc1 ls0 ws0">本也做了标记<span class="_ _0"></span>,但该标记并不影<span class="_ _0"></span>响<span class="_ _8"> </span><span class="ff2">SVM<span class="_ _7"> </span></span>的<span class="_ _0"></span>分类操作,它仅仅<span class="_ _0"></span>用</div><div class="t m0 x3 h4 yd ff1 fs1 fc0 sc1 ls0 ws0">于最后准确率的计算)。</div><div class="t m0 x2 h4 ye ff2 fs1 fc0 sc1 ls0 ws0">3<span class="ff1">、实验结果解释; </span></div><div class="t m0 x2 h4 yf ff2 fs1 fc0 sc1 ls0 ws0"> <span class="ff1">自己完成部分:</span></div><div class="t m0 x2 h4 y10 ff2 fs1 fc0 sc1 ls0 ws0"> <span class="_ _0"></span>①R<span class="_ _2"></span>eadF<span class="_ _9"></span>ile.java<span class="ff1">:用于读取文件内容,并生成二维数组(矩阵);</span></div><div class="t m0 x2 h4 y11 ff2 fs1 fc0 sc1 ls0 ws0"> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span> <span class="_ _0"></span>②KMeansCluster<span class="_ _9"></span>.java<span class="_ _0"></span><span class="ff1">:<span class="_ _0"></span>用于<span class="_ _0"></span>对多<span class="_ _0"></span>个向<span class="_ _0"></span>量进<span class="_ _0"></span>行<span class="_ _6"> </span></span>K<span class="_ _6"> </span><span class="ff1">均<span class="_ _0"></span>值聚<span class="_ _0"></span>类(<span class="_ _0"></span>输入<span class="_ _0"></span>为</span></div></div></div><div class="pi" data-data='{"ctm":[1.611850,0.000000,0.000000,1.611850,0.000000,0.000000]}'></div></div>
</body>
</html>