Skip to content

P
Paddle

PaddlePaddle / Paddle
大约 1 年 前同步成功

通知 2298
Star 20931
Fork 5422
P
Paddle
切换分支/标签
查找文件 普通视图历史永久链接Permalink
ml_dataset.html 11.0 KB
Newer Older
Y
Add old releases documentation  
Yu Yang 已提交
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    
    <title>MovieLens Dataset &#8212; PaddlePaddle  documentation</title>
    
    <link rel="stylesheet" href="../../_static/classic.css" type="text/css" />
    <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
    
    <script type="text/javascript">
      var DOCUMENTATION_OPTIONS = {
        URL_ROOT:    '../../',
        VERSION:     '',
        COLLAPSE_INDEX: false,
        FILE_SUFFIX: '.html',
        HAS_SOURCE:  true
      };
    </script>
    <script type="text/javascript" src="../../_static/jquery.js"></script>
    <script type="text/javascript" src="../../_static/underscore.js"></script>
    <script type="text/javascript" src="../../_static/doctools.js"></script>
    <script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
    <link rel="index" title="Index" href="../../genindex.html" />
    <link rel="search" title="Search" href="../../search.html" />
    <link rel="top" title="PaddlePaddle  documentation" href="../../index.html" />
    <link rel="up" title="Examples and demos" href="../index.html" />
    <link rel="next" title="Regression MovieLens Ratting" href="ml_regression.html" />
    <link rel="prev" title="Semantic Role labeling Tutorial" href="../semantic_role_labeling/semantic_role_labeling.html" /> 
<script>
var _hmt = _hmt || [];
(function() {
  var hm = document.createElement("script");
  hm.src = "//hm.baidu.com/hm.js?b9a314ab40d04d805655aab1deee08ba";
  var s = document.getElementsByTagName("script")[0]; 
  s.parentNode.insertBefore(hm, s);
})();
</script>

  </head>
  <body role="document">
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../../genindex.html" title="General Index"
             accesskey="I">index</a></li>
        <li class="right" >
          <a href="../../py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="ml_regression.html" title="Regression MovieLens Ratting"
             accesskey="N">next</a> |</li>
        <li class="right" >
          <a href="../semantic_role_labeling/semantic_role_labeling.html" title="Semantic Role labeling Tutorial"
             accesskey="P">previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="../../index.html">PaddlePaddle  documentation</a> &#187;</li>
          <li class="nav-item nav-item-1"><a href="../index.html" accesskey="U">Examples and demos</a> &#187;</li> 
      </ul>
    </div>  

    <div class="document">
      <div class="documentwrapper">
        <div class="bodywrapper">
          <div class="body" role="main">
            
  <div class="section" id="movielens-dataset">
<span id="movielens-dataset"></span><h1>MovieLens Dataset<a class="headerlink" href="#movielens-dataset" title="Permalink to this headline"></a></h1>
<p>The <a class="reference external" href="http://grouplens.org/datasets/movielens/">MovieLens Dataset</a> was collected by GroupLens Research.
The data set contains some user information, movie information, and many movie ratings from [1-5].
The data sets have many version depending on the size of set.
We use <a class="reference external" href="http://files.grouplens.org/datasets/movielens/ml-1m.zip">MovieLens 1M Dataset</a> as a demo dataset, which contains
1 million ratings from 6000 users on 4000 movies. Released 2/2003.</p>
<div class="section" id="dataset-features">
<span id="dataset-features"></span><h2>Dataset Features<a class="headerlink" href="#dataset-features" title="Permalink to this headline"></a></h2>
<p>In <a class="reference external" href="http://files.grouplens.org/datasets/movielens/ml-1m.zip">ml-1m Dataset</a>, there are many features in these dataset.
The data files (which have &#8221;.dat&#8221; extension) in <a class="reference external" href="http://files.grouplens.org/datasets/movielens/ml-1m.zip">ml-1m Dataset</a>
is basically CSV file that delimiter is &#8221;::&#8221;. The description in README we quote here.</p>
<div class="section" id="ratings-file-description-ratings-dat">
<span id="ratings-file-description-ratings-dat"></span><h3>RATINGS FILE DESCRIPTION(ratings.dat)<a class="headerlink" href="#ratings-file-description-ratings-dat" title="Permalink to this headline"></a></h3>
<p>All ratings are contained in the file &#8220;ratings.dat&#8221; and are in the
following format:</p>
<p>UserID::MovieID::Rating::Timestamp</p>
<ul class="simple">
<li>UserIDs range between 1 and 6040</li>
<li>MovieIDs range between 1 and 3952</li>
<li>Ratings are made on a 5-star scale (whole-star ratings only)</li>
<li>Timestamp is represented in seconds since the epoch as returned by time(2)</li>
<li>Each user has at least 20 ratings</li>
</ul>
</div>
<div class="section" id="users-file-description-users-dat">
<span id="users-file-description-users-dat"></span><h3>USERS FILE DESCRIPTION(users.dat)<a class="headerlink" href="#users-file-description-users-dat" title="Permalink to this headline"></a></h3>
<p>User information is in the file &#8220;users.dat&#8221; and is in the following
format:</p>
<p>UserID::Gender::Age::Occupation::Zip-code</p>
<p>All demographic information is provided voluntarily by the users and is
not checked for accuracy.  Only users who have provided some demographic
information are included in this data set.</p>
<ul class="simple">
<li>Gender is denoted by a &#8220;M&#8221; for male and &#8220;F&#8221; for female</li>
<li>Age is chosen from the following ranges:<ul>
<li>1:  &#8220;Under 18&#8221;</li>
<li>18:  &#8220;18-24&#8221;</li>
<li>25:  &#8220;25-34&#8221;</li>
<li>35:  &#8220;35-44&#8221;</li>
<li>45:  &#8220;45-49&#8221;</li>
<li>50:  &#8220;50-55&#8221;</li>
<li>56:  &#8220;56+&#8221;</li>
</ul>
</li>
<li>Occupation is chosen from the following choices:<ul>
<li>0:  &#8220;other&#8221; or not specified</li>
<li>1:  &#8220;academic/educator&#8221;</li>
<li>2:  &#8220;artist&#8221;</li>
<li>3:  &#8220;clerical/admin&#8221;</li>
<li>4:  &#8220;college/grad student&#8221;</li>
<li>5:  &#8220;customer service&#8221;</li>
<li>6:  &#8220;doctor/health care&#8221;</li>
<li>7:  &#8220;executive/managerial&#8221;</li>
<li>8:  &#8220;farmer&#8221;</li>
<li>9:  &#8220;homemaker&#8221;</li>
<li>10:  &#8220;K-12 student&#8221;</li>
<li>11:  &#8220;lawyer&#8221;</li>
<li>12:  &#8220;programmer&#8221;</li>
<li>13:  &#8220;retired&#8221;</li>
<li>14:  &#8220;sales/marketing&#8221;</li>
<li>15:  &#8220;scientist&#8221;</li>
<li>16:  &#8220;self-employed&#8221;</li>
<li>17:  &#8220;technician/engineer&#8221;</li>
<li>18:  &#8220;tradesman/craftsman&#8221;</li>
<li>19:  &#8220;unemployed&#8221;</li>
<li>20:  &#8220;writer&#8221;</li>
</ul>
</li>
</ul>
</div>
<div class="section" id="movies-file-description-movies-dat">
<span id="movies-file-description-movies-dat"></span><h3>MOVIES FILE DESCRIPTION(movies.dat)<a class="headerlink" href="#movies-file-description-movies-dat" title="Permalink to this headline"></a></h3>
<p>Movie information is in the file &#8220;movies.dat&#8221; and is in the following
format:</p>
<p>MovieID::Title::Genres</p>
<ul class="simple">
<li>Titles are identical to titles provided by the IMDB (including
year of release)</li>
<li>Genres are pipe-separated and are selected from the following genres:<ul>
<li>Action</li>
<li>Adventure</li>
<li>Animation</li>
<li>Children&#8217;s</li>
<li>Comedy</li>
<li>Crime</li>
<li>Documentary</li>
<li>Drama</li>
<li>Fantasy</li>
<li>Film-Noir</li>
<li>Horror</li>
<li>Musical</li>
<li>Mystery</li>
<li>Romance</li>
<li>Sci-Fi</li>
<li>Thriller</li>
<li>War</li>
<li>Western</li>
</ul>
</li>
<li>Some MovieIDs do not correspond to a movie due to accidental duplicate
entries and/or test entries</li>
<li>Movies are mostly entered by hand, so errors and inconsistencies may exist</li>
</ul>
</div>
</div>
</div>


          </div>
        </div>
      </div>
      <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
        <div class="sphinxsidebarwrapper">
  <h3><a href="../../index.html">Table Of Contents</a></h3>
  <ul>
<li><a class="reference internal" href="#">MovieLens Dataset</a><ul>
<li><a class="reference internal" href="#dataset-features">Dataset Features</a><ul>
<li><a class="reference internal" href="#ratings-file-description-ratings-dat">RATINGS FILE DESCRIPTION(ratings.dat)</a></li>
<li><a class="reference internal" href="#users-file-description-users-dat">USERS FILE DESCRIPTION(users.dat)</a></li>
<li><a class="reference internal" href="#movies-file-description-movies-dat">MOVIES FILE DESCRIPTION(movies.dat)</a></li>
</ul>
</li>
</ul>
</li>
</ul>

  <h4>Previous topic</h4>
  <p class="topless"><a href="../semantic_role_labeling/semantic_role_labeling.html"
                        title="previous chapter">Semantic Role labeling Tutorial</a></p>
  <h4>Next topic</h4>
  <p class="topless"><a href="ml_regression.html"
                        title="next chapter">Regression MovieLens Ratting</a></p>
  <div role="note" aria-label="source link">
    <h3>This Page</h3>
    <ul class="this-page-menu">
      <li><a href="../../_sources/demo/rec/ml_dataset.txt"
            rel="nofollow">Show Source</a></li>
    </ul>
   </div>
<div id="searchbox" style="display: none" role="search">
  <h3>Quick search</h3>
    <form class="search" action="../../search.html" method="get">
      <div><input type="text" name="q" /></div>
      <div><input type="submit" value="Go" /></div>
      <input type="hidden" name="check_keywords" value="yes" />
      <input type="hidden" name="area" value="default" />
    </form>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
        </div>
      </div>
      <div class="clearer"></div>
    </div>
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../../genindex.html" title="General Index"
             >index</a></li>
        <li class="right" >
          <a href="../../py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="ml_regression.html" title="Regression MovieLens Ratting"
             >next</a> |</li>
        <li class="right" >
          <a href="../semantic_role_labeling/semantic_role_labeling.html" title="Semantic Role labeling Tutorial"
             >previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="../../index.html">PaddlePaddle  documentation</a> &#187;</li>
          <li class="nav-item nav-item-1"><a href="../index.html" >Examples and demos</a> &#187;</li> 
      </ul>
    </div>
    <div class="footer" role="contentinfo">
        &#169; Copyright 2016, PaddlePaddle developers.
      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.4.9.
    </div>
  </body>
</html>