{"id":340,"date":"2014-09-20T16:16:34","date_gmt":"2014-09-20T07:16:34","guid":{"rendered":"https:\/\/www.dogrow.net\/octave\/?p=340"},"modified":"2019-10-26T20:40:14","modified_gmt":"2019-10-26T11:40:14","slug":"blog33","status":"publish","type":"post","link":"https:\/\/www.dogrow.net\/octave\/blog33\/","title":{"rendered":"(33) \u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u3067sin\u95a2\u6570\u3092\u8fd1\u4f3c"},"content":{"rendered":"<p>octave\u306b\u306f MATLAB\u306e <span class=\"my_fc_deeppinkBBig\">Neural Network Toolbox<\/span> \u306b\u4f3c\u305b\u305f <span class=\"my_fc_deeppinkBBig\">nnet package<\/span> \u304c\u3042\u308b\u3002<br \/>\n<a href=\"http:\/\/octave.sourceforge.net\/nnet\/overview.html\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/octave.sourceforge.net\/nnet\/overview.html<\/a><br \/>\n<span class=\"my_fc_crimsonB\">\u6ce8\u610f\uff1annet package\u306f\u3001Octave-Forge\u3067 Unmaintained packages \u306b\u5206\u985e\u3055\u308c\u3066\u3044\u308b\u3002<\/span><\/p>\n<p>\u3053\u308c\u3092\u4f7f\u3063\u3066\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3088\u308b <span class=\"my_fc_deeppinkBBig\">sin\u95a2\u6570\u306e\u8fd1\u4f3c <\/span>\u3092\u8a66\u3057\u3066\u307f\u305f\u3044\u3002<br \/>\n\u307e\u305a\u306f nnet package\u306e\u7c21\u5358\u306a\u4f7f\u3044\u65b9\u3092\u8abf\u3079\u306a\u304c\u3089\u5b9f\u969b\u306b\u52d5\u304b\u3057\u3066\u307f\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-353\" src=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/nnet_sin.gif\" alt=\"nnet_sin\" width=\"480\" height=\"360\" \/><\/p>\n<h3 class=\"my_h\">(1) \u5b66\u7fd2\u30c7\u30fc\u30bf\u3092\u4f5c\u308b<\/h3>\n<p>\u5165\u529b\u30c7\u30fc\u30bf\u306f\u3001-\u03c0 x 2 \uff5e \u03c0 x 2 \u307e\u3067\u306e\u7bc4\u56f2\u3092 0.1\u523b\u307f\u3068\u3059\u308b\u3002<br \/>\n\u51fa\u529b\u671f\u5f85\u5024\u30c7\u30fc\u30bf\u306f\u3001sin( \u5165\u529b\u30c7\u30fc\u30bf ) \u3068\u3059\u308b\u3002<\/p>\n<pre class=\"my_pre_octave\">\r\npkg load <span class=\"my_fc_deeppinkB\">nnet<\/span>\r\ndata_IN  = [ -pi*2 : 0.1 : pi*2 ];\r\ndata_OUT = sin(data_IN);\r\n<\/pre>\n<h3 class=\"my_h\">(2) \u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f5c\u6210<\/h3>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u306f\u96a0\u308c\u5c64(\u30cb\u30e5\u30fc\u30ed\u30f3\u65703\u500b)\u30921\u5c64\u306e\u307f\u3068\u3059\u308b\u3002<br \/>\n\u5b66\u7fd2\u6642\u306e\u30a8\u30dd\u30c3\u30af\u6570\u306f100\u56de\u3068\u3059\u308b\u3002<br \/>\n\u7d50\u5408\u8377\u91cd\u3001\u30d0\u30a4\u30a2\u30b9\u306e\u521d\u671f\u5024\u3092\u3069\u3046\u3057\u3066\u3044\u308b\u304b\u306f\u672a\u8abf\u67fb\u3002<br \/>\n<span class=\"my_fc_crimsonB\">\u203b\u521d\u671f\u5024\u306b\u3088\u3063\u3066\u306f\u3046\u307e\u304f\u53ce\u675f\u3057\u306a\u3044\u5834\u5408\u3082\u3042\u308b\u3002<\/span><\/p>\n<pre class=\"my_pre_octave\">\r\nRx2 = [min(data_IN), max(data_IN)];\r\nS   = [3 1];\r\nrand('state', 0)\r\nrandn('state', 0)\r\nNNet = <span class=\"my_fc_deeppinkB\">newff<\/span>( Rx2, S );\r\nNNet.trainParam.epochs = 100;\r\n<\/pre>\n<h3 class=\"my_h\">(3) \u5b66\u7fd2\u3092\u5b9f\u884c<\/h3>\n<p>\u623b\u308a\u5024 net \u306b\u306f\u3001\u5b66\u7fd2\u6e08\u307f\u306e\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u304c\u51fa\u529b\u3055\u308c\u308b\u3002<\/p>\n<pre class=\"my_pre_octave\">\r\nVV.P = data_IN;\r\nVV.T = data_OUT;\r\nnet = <span class=\"my_fc_deeppinkB\">train<\/span>( NNet, data_IN, data_OUT, [], [], VV );\r\n<\/pre>\n<p>\u8aa4\u5dee\u306f\u9806\u8abf\u306b\u53ce\u675f\u3057\u3066\u3044\u308b\u3088\u3046\u3060\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-341\" src=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_01.png\" alt=\"20140920_01\" width=\"480\" height=\"418\" srcset=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_01.png 480w, https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_01-300x261.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/p>\n<h3 class=\"my_h\">(4) \u5b66\u7fd2\u306b\u4f7f\u7528\u3057\u305f\u30c7\u30fc\u30bf\u306e\u51fa\u529b\u3092\u78ba\u8a8d<\/h3>\n<p>\u5b66\u7fd2\u6e08\u307f\u306e\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u306b\u3001\u5b66\u7fd2\u306b\u4f7f\u7528\u3057\u305f\u30c7\u30fc\u30bf\u3092\u5165\u529b\u3057\u3066\u307f\u308b\u3002<br \/>\n\u5b66\u7fd2\u306b\u4f7f\u7528\u3057\u305f\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u3001\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u304c sin\u95a2\u6570\u3092\u3069\u308c\u3060\u3051\u8fd1\u4f3c\u3067\u304d\u3066\u3044\u308b\u304b\uff1f\u3092\u898b\u305f\u3044\u3002<\/p>\n<pre class=\"my_pre_octave\">\r\nres = <span class=\"my_fc_deeppinkB\">sim<\/span>( net, data_IN );\r\nplot(data_IN, data_OUT, 'r', data_IN, res, 'b')\r\n<\/pre>\n<p>\u672c\u7269\u306esin\u95a2\u6570\u306e\u51fa\u529b\u5024\u3092<span style=\"color: #ff0000;\">\u8d64\u7dda<\/span>\u3001\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u306e\u51fa\u529b\u5024\u3092<span style=\"color: #0000ff;\">\u9752\u7dda<\/span>\u3067\u8868\u793a\u3057\u305f\u3002<br \/>\n\u30b0\u30e9\u30d5\u8868\u793a\u3057\u305f\u7d50\u679c\u306f\u307b\u307c\u91cd\u306a\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u4e0b\u5074\u306b\u8868\u793a\u3057\u305f<span style=\"color: #ff0000;\">\u8d64\u7dda<\/span>\u304c\u307b\u3068\u3093\u3069\u898b\u3048\u306a\u3044\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-342\" src=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_02.png\" alt=\"20140920_02\" width=\"480\" height=\"418\" srcset=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_02.png 480w, https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_02-300x261.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/p>\n<p>\u4e21\u8005\u306e\u5dee\u3092\u6570\u5024(\u6700\u5927\u5024\u3001\u6700\u5c0f\u5024\u3001\u6a19\u6e96\u504f\u5dee)\u3067\u898b\u3066\u307f\u308b\u3002<\/p>\n<pre class=\"my_pre_octave\">\r\n&gt; diff = data_OUT - res;\r\n&gt; max(diff)\r\nans =  0.021823\r\n&gt; min(diff)\r\nans = -0.018701\r\n&gt; std(diff)\r\nans =  0.0057264\r\n<\/pre>\n<h3 class=\"my_h\">(5) \u672a\u5b66\u7fd2\u306e\u5165\u529b\u30c7\u30fc\u30bf\u306e\u51fa\u529b\u3092\u78ba\u8a8d<\/h3>\n<p>\u5b66\u7fd2\u306b\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u30c7\u30fc\u30bf\u3092\u5165\u529b\u3057\u305f\u5834\u5408\u306b\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u308b\u304b\uff1f\u3092\u898b\u305f\u3044\u3002<\/p>\n<pre class=\"my_pre_octave\">\r\ntest_IN = rand(1,100) * 12 - 6;\r\nres = sim( net, test_IN );\r\nfigure;\r\nplot(data_IN, data_OUT, 'r', 'LineWidth',2', test_IN, res, 'b+');\r\ngrid on;\r\nylim([-1.2 1.2]);\r\n<\/pre>\n<p>\u672c\u7269\u306esin\u95a2\u6570\u306e\u51fa\u529b\u5024\u3092<span style=\"color: #ff0000;\">\u8d64\u7dda<\/span>\u3001\u30cb\u30e5\u30fc\u30e9\u30eb\u30cd\u30c3\u30c8\u306e\u51fa\u529b\u5024\u3092<span style=\"color: #0000ff;\">\u9752\u5341\u5b57<\/span>\u3067\u8868\u793a\u3057\u305f\u3002<br \/>\n\u7d50\u679c\u3092\u30b0\u30e9\u30d5\u8868\u793a\u3059\u308b\u3068\u3001\u4e21\u8005\u306f\u307b\u307c\u91cd\u306a\u3063\u3066\u3044\u308b\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-392\" src=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_06.png\" alt=\"20140920_06\" width=\"480\" height=\"418\" srcset=\"https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_06.png 480w, https:\/\/www.dogrow.net\/octave\/wp-content\/uploads\/2014\/09\/20140920_06-300x261.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/p>\n<hr class=\"my_hr_bottom\">\n","protected":false},"excerpt":{"rendered":"<p>octave\u306b\u306f MATLAB\u306e Neural Network Toolbox \u306b\u4f3c\u305b\u305f nnet package \u304c\u3042\u308b\u3002 http:\/\/octave.sourceforge.net\/nnet\/overview.htm\u2026 <span class=\"read-more\"><a href=\"https:\/\/www.dogrow.net\/octave\/blog33\/\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-340","post","type-post","status-publish","format-standard","hentry","category-24"],"views":5287,"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/posts\/340","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/comments?post=340"}],"version-history":[{"count":35,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/posts\/340\/revisions"}],"predecessor-version":[{"id":1006,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/posts\/340\/revisions\/1006"}],"wp:attachment":[{"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/media?parent=340"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/categories?post=340"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dogrow.net\/octave\/wp-json\/wp\/v2\/tags?post=340"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}