支持向量机

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  • 2022-03-31 07:36
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malab开发的svm程序,有注释,可画出分类面
SVM.rar
  • SVM
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  • Main_SVR_Epsilon.m
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  • heart.mat
    2.4KB
  • gD2.m
    1.5KB
  • Main_SVC_Nu.m
    3.1KB
  • svmSim.m
    4KB
  • 工具箱说明.txt
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  • gD2.asv
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  • Main_SVC_C.m
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  • svmTrain.asv
    3.9KB
  • kernel.m
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  • Main_SVM_One_Class.m
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  • 函数说明.txt
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  • LIBSVM a Library for Support Vector Machines.pdf
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内容介绍
<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/6244eb0c6cd7507199c48d4b/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/6244eb0c6cd7507199c48d4b/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">LIBSVM<span class="ff2">:<span class="_ _0"> </span>a<span class="_ _1"> </span>Library<span class="_ _1"> </span>for<span class="_ _1"> </span>Supp<span class="_ _2"></span>ort<span class="_ _1"> </span>V<span class="_ _3"></span>ector<span class="_ _1"> </span>Mac<span class="_ _4"></span>hines</span></div><div class="t m0 x2 h3 y2 ff2 fs1 fc0 sc0 ls0 ws0">Chih-Ch<span class="_ _4"></span>ung<span class="_ _5"> </span>Chang<span class="_ _5"> </span>and<span class="_ _6"> </span>Chih-Jen<span class="_ _6"> </span>Lin</div><div class="t m0 x3 h4 y3 ff3 fs2 fc0 sc0 ls0 ws0">&#8727;</div><div class="t m0 x4 h3 y4 ff4 fs1 fc0 sc0 ls0 ws0">Last<span class="_ _7"> </span>up<span class="_ _2"></span>da<span class="_ _8"></span>ted:<span class="_ _9"> </span>Decem<span class="_ _4"></span>b<span class="_ _2"></span>er<span class="_ _7"> </span>27,<span class="_ _7"> </span>2006</div><div class="t m0 x5 h5 y5 ff5 fs3 fc0 sc0 ls0 ws0">Abstract</div><div class="t m0 x6 h6 y6 ff6 fs3 fc0 sc0 ls0 ws0">LIBSVM<span class="_ _a"> </span><span class="ff7">is<span class="_ _a"> </span>a<span class="_ _a"> </span>library<span class="_ _a"> </span>for<span class="_ _a"> </span>supp<span class="_ _2"></span>ort<span class="_ _a"> </span>v<span class="_ _4"></span>ector<span class="_ _a"> </span>mac<span class="_ _8"></span>hines<span class="_ _a"> </span>(SVM).<span class="_ _a"> </span>Its<span class="_ _a"> </span>goal<span class="_ _a"> </span>is<span class="_ _a"> </span>to<span class="_ _a"> </span>help</span></div><div class="t m0 x7 h6 y7 ff7 fs3 fc0 sc0 ls0 ws0">users<span class="_ _7"> </span>to<span class="_ _7"> </span>easily<span class="_ _7"> </span>use<span class="_ _7"> </span>SVM<span class="_ _7"> </span>as<span class="_ _7"> </span>a<span class="_ _7"> </span>to<span class="_ _2"></span>ol.<span class="_ _b"> </span>In<span class="_ _7"> </span>this<span class="_ _7"> </span>do<span class="_ _2"></span>cumen<span class="_ _4"></span>t,<span class="_ _7"> </span>we<span class="_ _a"> </span>present<span class="_ _a"> </span>all<span class="_ _7"> </span>its<span class="_ _7"> </span>imple-</div><div class="t m0 x7 h6 y8 ff7 fs3 fc0 sc0 ls0 ws0">men<span class="_ _4"></span>tation<span class="_ _5"> </span>details.<span class="_ _c"> </span>F<span class="_ _d"></span>or<span class="_ _6"> </span>the<span class="_ _6"> </span>use<span class="_ _5"> </span>of<span class="_ _6"> </span><span class="ff6">LIBSVM</span>,<span class="_ _5"> </span>the<span class="_ _6"> </span><span class="ff6">README<span class="_ _5"> </span></span>&#64257;le<span class="_ _6"> </span>included<span class="_ _6"> </span>in<span class="_ _6"> </span>the</div><div class="t m0 x7 h6 y9 ff7 fs3 fc0 sc0 ls0 ws0">pac<span class="_ _4"></span>k<span class="_ _4"></span>age<span class="_ _a"> </span>and<span class="_ _7"> </span>the<span class="_ _a"> </span><span class="ff6">LIBSVM<span class="_ _a"> </span></span>F<span class="_ _d"></span>A<span class="_ _4"></span>Q<span class="_ _a"> </span>provide<span class="_ _a"> </span>the<span class="_ _a"> </span>information.</div><div class="t m0 x8 h2 ya ff2 fs0 fc0 sc0 ls0 ws0">1<span class="_ _e"> </span>In<span class="_ _4"></span>tro<span class="_ _2"></span>duction</div><div class="t m0 x8 h3 yb ff8 fs1 fc0 sc0 ls0 ws0">LIBSVM<span class="_ _6"> </span><span class="ff4">is<span class="_ _6"> </span>a<span class="_ _6"> </span>library<span class="_ _6"> </span>for<span class="_ _6"> </span>supp<span class="_ _f"></span>ort<span class="_ _6"> </span>v<span class="_ _4"></span>ector<span class="_ _6"> </span>machines<span class="_ _6"> </span>(SVM).<span class="_ _7"> </span>Its<span class="_ _5"> </span>goal<span class="_ _6"> </span>is<span class="_ _6"> </span>to<span class="_ _7"> </span>let<span class="_ _6"> </span>users<span class="_ _6"> </span>can</span></div><div class="t m0 x8 h3 yc ff4 fs1 fc0 sc0 ls0 ws0">easily<span class="_ _10"> </span>use<span class="_ _10"> </span>SVM<span class="_ _10"> </span>as<span class="_ _10"> </span>a<span class="_ _10"> </span>to<span class="_ _f"></span>ol.<span class="_ _9"> </span>In<span class="_ _10"> </span>this<span class="_ _10"> </span>document,<span class="_ _10"> </span>w<span class="_ _4"></span>e<span class="_ _10"> </span>present<span class="_ _10"> </span>all<span class="_ _10"> </span>its<span class="_ _10"> </span>implemen<span class="_ _4"></span>tation<span class="_ _10"> </span>details.</div><div class="t m0 x8 h3 yd ff4 fs1 fc0 sc0 ls0 ws0">F<span class="_ _d"></span>or<span class="_ _11"> </span>using<span class="_ _11"> </span><span class="ff8">LIBSVM</span>,<span class="_ _10"> </span>the<span class="_ _11"> </span><span class="ff8">README<span class="_ _11"> </span></span>&#64257;le<span class="_ _11"> </span>included<span class="_ _11"> </span>in<span class="_ _12"> </span>the<span class="_ _11"> </span>pack<span class="_ _d"></span>age<span class="_ _11"> </span>provides<span class="_ _11"> </span>the<span class="_ _11"> </span>information.</div><div class="t m0 x9 h3 ye ff4 fs1 fc0 sc0 ls0 ws0">In<span class="_ _7"> </span>Section<span class="_ _6"> </span>2,<span class="_ _7"> </span>w<span class="_ _4"></span>e<span class="_ _6"> </span>sho<span class="_ _4"></span>w<span class="_ _6"> </span>form<span class="_ _4"></span>ulations<span class="_ _7"> </span>used<span class="_ _6"> </span>in<span class="_ _7"> </span><span class="ff8">LIBSVM</span>:<span class="_ _b"> </span><span class="ff9">C<span class="_ _13"></span></span>-supp<span class="_ _f"></span>ort<span class="_ _7"> </span>vector<span class="_ _7"> </span>classi&#64257;ca-</div><div class="t m0 x8 h3 yf ff4 fs1 fc0 sc0 ls0 ws0">tion<span class="_ _7"> </span>(<span class="ff9">C<span class="_ _13"></span></span>-SV<span class="_ _4"></span>C),<span class="_ _6"> </span><span class="ff9">&#957;<span class="_ _2"></span></span>-supp<span class="_ _f"></span>ort<span class="_ _7"> </span>vector<span class="_ _7"> </span>classi&#64257;cation<span class="_ _7"> </span>(<span class="ff9">&#957;<span class="_ _2"></span></span>-SVC),<span class="_ _7"> </span>distribution<span class="_ _7"> </span>estimation<span class="_ _7"> </span>(one-</div><div class="t m0 x8 h3 y10 ff4 fs1 fc0 sc0 ls0 ws0">class<span class="_ _b"> </span>SVM),<span class="_ _b"> </span><span class="ff9">&#58895;</span>-supp<span class="_ _f"></span>ort<span class="_ _b"> </span>vector<span class="_ _b"> </span>regression<span class="_ _b"> </span>(<span class="ff9">&#58895;</span>-SVR),<span class="_ _b"> </span>and<span class="_ _b"> </span><span class="ff9">&#957;<span class="_ _13"></span></span>-supp<span class="_ _f"></span>ort<span class="_ _b"> </span>vector<span class="_ _9"> </span>regression</div><div class="t m0 x8 h3 y11 ff4 fs1 fc0 sc0 ls0 ws0">(<span class="ff9">&#957;<span class="_ _2"></span></span>-SVR).<span class="_ _7"> </span>W<span class="_ _d"></span>e<span class="_ _7"> </span>discuss<span class="_ _7"> </span>the<span class="_ _7"> </span>implemen<span class="_ _4"></span>tation<span class="_ _7"> </span>of<span class="_ _7"> </span>solving<span class="_ _7"> </span>quadratic<span class="_ _a"> </span>problems<span class="_ _7"> </span>in<span class="_ _7"> </span>Section<span class="_ _7"> </span>3.</div><div class="t m0 x8 h3 y12 ff4 fs1 fc0 sc0 ls0 ws0">Section<span class="_ _6"> </span>4<span class="_ _7"> </span>describ<span class="_ _f"></span>es<span class="_ _6"> </span>tw<span class="_ _4"></span>o<span class="_ _6"> </span>implemen<span class="_ _4"></span>tation<span class="_ _6"> </span>tec<span class="_ _4"></span>hniques:<span class="_ _14"> </span>shrinking<span class="_ _6"> </span>and<span class="_ _7"> </span>caching.<span class="_ _14"> </span>W<span class="_ _d"></span>e<span class="_ _7"> </span>also</div><div class="t m0 x8 h3 y13 ff4 fs1 fc0 sc0 ls0 ws0">supp<span class="_ _f"></span>ort<span class="_ _6"> </span>di&#64256;erent<span class="_ _6"> </span>p<span class="_ _f"></span>enalt<span class="_ _4"></span>y<span class="_ _5"> </span>parameters<span class="_ _6"> </span>for<span class="_ _6"> </span>unbalanced<span class="_ _6"> </span>data.<span class="_ _1"> </span>Details<span class="_ _5"> </span>are<span class="_ _6"> </span>in<span class="_ _6"> </span>Section<span class="_ _5"> </span>5.</div><div class="t m0 x8 h3 y14 ff4 fs1 fc0 sc0 ls0 ws0">Then<span class="_ _7"> </span>Section<span class="_ _7"> </span>6<span class="_ _7"> </span>discusses<span class="_ _7"> </span>the<span class="_ _7"> </span>implementation<span class="_ _a"> </span>of<span class="_ _7"> </span>multi-class<span class="_ _a"> </span>classi&#64257;cation.<span class="_ _9"> </span>Parameter</div><div class="t m0 x8 h3 y15 ff4 fs1 fc0 sc0 ls0 ws0">selection<span class="_ _a"> </span>is<span class="_ _7"> </span>imp<span class="_ _f"></span>ortan<span class="_ _4"></span>t<span class="_ _7"> </span>for<span class="_ _a"> </span>obtaining<span class="_ _a"> </span>go<span class="_ _2"></span>o<span class="_ _f"></span>d<span class="_ _a"> </span>SVM<span class="_ _7"> </span>mo<span class="_ _f"></span>dels.<span class="_ _9"> </span><span class="ff8">LIBSVM<span class="_ _a"> </span></span>pro<span class="_ _8"></span>vides<span class="_ _a"> </span>simple<span class="_ _7"> </span>and</div><div class="t m0 x8 h3 y16 ff4 fs1 fc0 sc0 ls0 ws0">useful<span class="_ _a"> </span>to<span class="_ _f"></span>ols,<span class="_ _7"> </span>which<span class="_ _10"> </span>are<span class="_ _7"> </span>discussed<span class="_ _a"> </span>in<span class="_ _7"> </span>Section<span class="_ _7"> </span>7.<span class="_ _9"> </span>Section<span class="_ _a"> </span>8<span class="_ _a"> </span>presents<span class="_ _a"> </span>the<span class="_ _a"> </span>implementation</div><div class="t m0 x8 h3 y17 ff4 fs1 fc0 sc0 ls0 ws0">of<span class="_ _7"> </span>probabilit<span class="_ _4"></span>y<span class="_ _7"> </span>outputs.</div><div class="t m0 x8 h2 y18 ff2 fs0 fc0 sc0 ls0 ws0">2<span class="_ _e"> </span>F<span class="_ _3"></span>orm<span class="_ _4"></span>ulations</div><div class="t m0 x8 h7 y19 ff2 fs4 fc0 sc0 ls0 ws0">2.1<span class="_ _15"> </span><span class="ff9">C<span class="_ _13"></span></span>-Supp<span class="_ _2"></span>ort<span class="_ _9"> </span>V<span class="_ _d"></span>ector<span class="_ _9"> </span>Classi&#64257;cation</div><div class="t m0 x8 h3 y1a ff4 fs1 fc0 sc0 ls0 ws0">Giv<span class="_ _4"></span>en<span class="_ _b"> </span>training<span class="_ _9"> </span>v<span class="_ _4"></span>ectors<span class="_ _b"> </span><span class="ff2">x</span></div><div class="t m0 x4 h8 y1b ffa fs2 fc0 sc0 ls0 ws0">i</div><div class="t m0 xa h3 y1a ffb fs1 fc0 sc0 ls0 ws0">&#8712;<span class="_ _b"> </span><span class="ff9">R</span></div><div class="t m0 xb h8 y1c ffa fs2 fc0 sc0 ls0 ws0">n</div><div class="t m0 xc h3 y1a ff9 fs1 fc0 sc0 ls0 ws0">,<span class="_ _16"> </span>i<span class="_ _b"> </span><span class="ff4">=<span class="_ _14"> </span>1</span>,<span class="_ _16"> </span>.<span class="_ _16"> </span>.<span class="_ _16"> </span>.<span class="_ _16"> </span>,<span class="_ _16"> </span>l<span class="ff4">,<span class="_ _b"> </span>in<span class="_ _9"> </span>tw<span class="_ _4"></span>o<span class="_ _9"> </span>classes,<span class="_ _14"> </span>and<span class="_ _9"> </span>a<span class="_ _9"> </span>v<span class="_ _4"></span>ector<span class="_ _9"> </span><span class="ff2">y<span class="_ _14"> </span><span class="ffb">&#8712;<span class="_ _b"> </span><span class="ff9">R</span></span></span></span></div><div class="t m0 xd h8 y1c ffa fs2 fc0 sc0 ls0 ws0">l</div><div class="t m0 x8 h3 y1d ff4 fs1 fc0 sc0 ls0 ws0">suc<span class="_ _4"></span>h<span class="_ _5"> </span>that<span class="_ _6"> </span><span class="ff9">y</span></div><div class="t m0 xe h8 y1e ffa fs2 fc0 sc0 ls0 ws0">i</div><div class="t m0 xf h3 y1d ffb fs1 fc0 sc0 ls0 ws0">&#8712;<span class="_ _6"> </span>{<span class="ff4">1<span class="ff9">,<span class="_ _16"> </span></span></span>&#8722;<span class="ff4">1</span>}<span class="ff4">,<span class="_ _6"> </span><span class="ff9">C<span class="_ _13"></span></span>-SVC<span class="_ _6"> </span>(Cortes<span class="_ _6"> </span>and<span class="_ _6"> </span>V<span class="_ _d"></span>apnik,<span class="_ _5"> </span>1995;<span class="_ _6"> </span>V<span class="_ _d"></span>apnik,<span class="_ _6"> </span>1998)<span class="_ _6"> </span>solves<span class="_ _6"> </span>the</span></div><div class="t m0 x10 h9 y1f ffc fs5 fc0 sc0 ls0 ws0">&#8727;</div><div class="t m0 x9 ha y20 ff7 fs6 fc0 sc0 ls0 ws0">Departmen<span class="_ _8"></span>t<span class="_ _6"> </span>of<span class="_ _6"> </span>Computer<span class="_ _6"> </span>Science,<span class="_ _6"> </span>National<span class="_ _6"> </span>T<span class="_ _d"></span>aiwan<span class="_ _6"> </span>Univ<span class="_ _4"></span>ersity<span class="_ _d"></span>,<span class="_ _6"> </span>T<span class="_ _d"></span>aip<span class="_ _f"></span>ei<span class="_ _6"> </span>106,<span class="_ _5"> </span>T<span class="_ _d"></span>aiwan<span class="_ _7"> </span>(<span class="ffd">http://</span></div><div class="t m0 x8 hb y21 ffd fs6 fc0 sc0 ls0 ws0">www.csie.ntu.edu.tw/</div><div class="t m0 x11 h9 y22 ffc fs5 fc0 sc0 ls0 ws0">&#8764;</div><div class="t m0 x12 ha y21 ffd fs6 fc0 sc0 ls0 ws0">cjlin<span class="ff7">).<span class="_ _6"> </span>E-mail:<span class="_ _5"> </span>cjlin@csie.n<span class="_ _4"></span>tu.edu.tw</span></div><div class="t m0 x13 h3 y23 ff4 fs1 fc0 sc0 ls0 ws0">1</div><a class="l" rel='nofollow' onclick='return false;'><div class="d m1"></div></a><a class="l" rel='nofollow' onclick='return false;'><div class="d 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