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<h1 title="Package" class="title">Package&nbsp;org.apache.mahout.cf.taste.impl.model</h1>
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<table class="typeSummary" border="0" cellpadding="3" cellspacing="0" summary="Class Summary table, listing classes, and an explanation">
<caption><span>Class Summary</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Class</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/AbstractDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model">AbstractDataModel</a></td>
<td class="colLast">
<div class="block">Contains some features common to all implementations.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/AbstractIDMigrator.html" title="class in org.apache.mahout.cf.taste.impl.model">AbstractIDMigrator</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/AbstractJDBCIDMigrator.html" title="class in org.apache.mahout.cf.taste.impl.model">AbstractJDBCIDMigrator</a></td>
<td class="colLast">
<div class="block">Implementation which stores the reverse long-to-String mapping in a database.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/BooleanItemPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model">BooleanItemPreferenceArray</a></td>
<td class="colLast">
<div class="block">
Like <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/BooleanUserPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>BooleanUserPreferenceArray</code></a> but stores preferences for one item (all item IDs the same) rather
than one user.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/BooleanPreference.html" title="class in org.apache.mahout.cf.taste.impl.model">BooleanPreference</a></td>
<td class="colLast">
<div class="block">Encapsulates a simple boolean "preference" for an item whose value does not matter (is fixed at 1.0).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/BooleanUserPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model">BooleanUserPreferenceArray</a></td>
<td class="colLast">
<div class="block">
Like <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericUserPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>GenericUserPreferenceArray</code></a> but stores, conceptually, <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/BooleanPreference.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>BooleanPreference</code></a> objects which
have no associated preference value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericBooleanPrefDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model">GenericBooleanPrefDataModel</a></td>
<td class="colLast">
<div class="block">
A simple <a href="../../../../../../../org/apache/mahout/cf/taste/model/DataModel.html" title="interface in org.apache.mahout.cf.taste.model"><code>DataModel</code></a> which uses given user data as its data source.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model">GenericDataModel</a></td>
<td class="colLast">
<div class="block">
A simple <a href="../../../../../../../org/apache/mahout/cf/taste/model/DataModel.html" title="interface in org.apache.mahout.cf.taste.model"><code>DataModel</code></a> which uses a given <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util"><code>List</code></a> of users as its data source.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericItemPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model">GenericItemPreferenceArray</a></td>
<td class="colLast">
<div class="block">
Like <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericUserPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>GenericUserPreferenceArray</code></a> but stores preferences for one item (all item IDs the same) rather
than one user.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericPreference.html" title="class in org.apache.mahout.cf.taste.impl.model">GenericPreference</a></td>
<td class="colLast">
<div class="block">
A simple <a href="../../../../../../../org/apache/mahout/cf/taste/model/Preference.html" title="interface in org.apache.mahout.cf.taste.model"><code>Preference</code></a> encapsulating an item and preference value.</div>
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<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericUserPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model">GenericUserPreferenceArray</a></td>
<td class="colLast">
<div class="block">
Like <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/GenericItemPreferenceArray.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>GenericItemPreferenceArray</code></a> but stores preferences for one user (all user IDs the same) rather
than one item.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/MemoryIDMigrator.html" title="class in org.apache.mahout.cf.taste.impl.model">MemoryIDMigrator</a></td>
<td class="colLast">
<div class="block">Implementation which stores the reverse long-to-String mapping in memory.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/MySQLJDBCIDMigrator.html" title="class in org.apache.mahout.cf.taste.impl.model">MySQLJDBCIDMigrator</a></td>
<td class="colLast">
<div class="block">
An implementation for MySQL.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/PlusAnonymousConcurrentUserDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model">PlusAnonymousConcurrentUserDataModel</a></td>
<td class="colLast">
<div class="block">
This is a special thread-safe version of <a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/PlusAnonymousUserDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model"><code>PlusAnonymousUserDataModel</code></a>
which allow multiple concurrent anonymous requests.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="../../../../../../../org/apache/mahout/cf/taste/impl/model/PlusAnonymousUserDataModel.html" title="class in org.apache.mahout.cf.taste.impl.model">PlusAnonymousUserDataModel</a></td>
<td class="colLast">
<div class="block">
This <a href="../../../../../../../org/apache/mahout/cf/taste/model/DataModel.html" title="interface in org.apache.mahout.cf.taste.model"><code>DataModel</code></a> decorator class is useful in a situation where you wish to recommend to a user that
doesn't really exist yet in your actual <a href="../../../../../../../org/apache/mahout/cf/taste/model/DataModel.html" title="interface in org.apache.mahout.cf.taste.model"><code>DataModel</code></a>.</div>
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