http://samediff.kr/wiki/index.php?action=history&feed=atom&title=Jaccard_vs_cityblock 2026-05-01T17:05:57Z 이 문서의 편집 역사 MediaWiki 1.34.0 http://samediff.kr/wiki/index.php?title=Jaccard_vs_cityblock&diff=11496&oldid=prev 2017-04-28T16:03:02Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="ko"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← 이전 판</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">2017년 4월 28일 (금) 16:03 판</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l26" >26번째 줄:</td> <td colspan="2" class="diff-lineno">26번째 줄:</td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>       [ 0. ,  1. ,  0.5,  0. ,  0. ]])</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>       [ 0. ,  1. ,  0.5,  0. ,  0. ]])</div></td></tr> <tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;/pre&gt;</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>jaccard는 둘 다 0일때 무시한다.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>jaccard는 둘 다 0일때 무시한다. <ins class="diffchange diffchange-inline">intersection=and, union=or 이기 때문. jaccard=intersection/union</ins></div></td></tr> </table>

Admin http://samediff.kr/wiki/index.php?title=Jaccard_vs_cityblock&diff=11495&oldid=prev 2017-04-28T16:00:44Z

<p>새 문서: &lt;pre&gt; &gt;&gt;&gt; b =np.array([[1,0,1,1,1],[1,0,0,1,1]]).T &gt;&gt;&gt; b array([[1, 1], [0, 0], [1, 0], [1, 1], [1, 1]]) &gt;&gt;&gt; ss.distance.squareform(ss.distance.pdist(b))...</p> <p><b>새 문서</b></p><div>&lt;pre&gt;<br /> &gt;&gt;&gt; b =np.array([[1,0,1,1,1],[1,0,0,1,1]]).T<br /> &gt;&gt;&gt; b<br /> array([[1, 1],<br /> [0, 0],<br /> [1, 0],<br /> [1, 1],<br /> [1, 1]])<br /> &gt;&gt;&gt; ss.distance.squareform(ss.distance.pdist(b))<br /> array([[ 0. , 1.41421356, 1. , 0. , 0. ],<br /> [ 1.41421356, 0. , 1. , 1.41421356, 1.41421356],<br /> [ 1. , 1. , 0. , 1. , 1. ],<br /> [ 0. , 1.41421356, 1. , 0. , 0. ],<br /> [ 0. , 1.41421356, 1. , 0. , 0. ]])<br /> &gt;&gt;&gt; ss.distance.squareform(ss.distance.pdist(b, 'cityblock'))<br /> array([[ 0., 2., 1., 0., 0.],<br /> [ 2., 0., 1., 2., 2.],<br /> [ 1., 1., 0., 1., 1.],<br /> [ 0., 2., 1., 0., 0.],<br /> [ 0., 2., 1., 0., 0.]])<br /> &gt;&gt;&gt; ss.distance.squareform(ss.distance.pdist(b, 'jaccard'))<br /> array([[ 0. , 1. , 0.5, 0. , 0. ],<br /> [ 1. , 0. , 1. , 1. , 1. ],<br /> [ 0.5, 1. , 0. , 0.5, 0.5],<br /> [ 0. , 1. , 0.5, 0. , 0. ],<br /> [ 0. , 1. , 0.5, 0. , 0. ]])<br /> &lt;/pre&gt;<br /> jaccard는 둘 다 0일때 무시한다.</div>

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