# Serialized Form

Package org.apache.mahout.cf.taste.common

Class org.apache.mahout.cf.taste.common.NoSuchItemException extends TasteException implements Serializable

Class org.apache.mahout.cf.taste.common.NoSuchUserException extends TasteException implements Serializable

Class org.apache.mahout.cf.taste.common.TasteException extends java.lang.Exception implements Serializable

Package org.apache.mahout.cf.taste.hadoop.similarity.item

Class org.apache.mahout.cf.taste.hadoop.similarity.item.CountUsersKeyWritable.CountUsersGroupComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Class org.apache.mahout.cf.taste.hadoop.similarity.item.PrefsToItemUserMatrixMapper extends java.lang.Object implements Serializable

Class org.apache.mahout.cf.taste.hadoop.similarity.item.PrefsToItemUserMatrixReducer extends java.lang.Object implements Serializable

Package org.apache.mahout.cf.taste.impl.common

Class org.apache.mahout.cf.taste.impl.common.CompactRunningAverage extends java.lang.Object implements Serializable

Serialized Fields

### count

    char count

### average

    float average

Class org.apache.mahout.cf.taste.impl.common.CompactRunningAverageAndStdDev extends CompactRunningAverage implements Serializable

Serialized Fields

### stdDev

    float stdDev

### sumX2

    float sumX2

Class org.apache.mahout.cf.taste.impl.common.FastByIDMap extends java.lang.Object implements Serializable

Serialized Fields

### keys

    long[] keys

### values

    java.lang.Object[] values

### numEntries

    int numEntries

### numSlotsUsed

    int numSlotsUsed

### maxSize

    int maxSize

### recentlyAccessed

    org.apache.mahout.cf.taste.impl.common.BitSet recentlyAccessed

### countingAccesses

    boolean countingAccesses

Class org.apache.mahout.cf.taste.impl.common.FastIDSet extends java.lang.Object implements Serializable

Serialized Fields

### keys

    long[] keys

### numEntries

    int numEntries

### numSlotsUsed

    int numSlotsUsed

Class org.apache.mahout.cf.taste.impl.common.FastMap extends java.lang.Object implements Serializable

Serialized Fields

### keys

    java.lang.Object[] keys

### values

    java.lang.Object[] values

### numEntries

    int numEntries

### numSlotsUsed

    int numSlotsUsed

### maxSize

    int maxSize

### recentlyAccessed

    org.apache.mahout.cf.taste.impl.common.BitSet recentlyAccessed

### countingAccesses

    boolean countingAccesses

Class org.apache.mahout.cf.taste.impl.common.FixedRunningAverage extends java.lang.Object implements Serializable

Serialized Fields

### average

    double average

### count

    int count

Class org.apache.mahout.cf.taste.impl.common.FixedRunningAverageAndStdDev extends FixedRunningAverage implements Serializable

Serialized Fields

### stdDev

    double stdDev

Class org.apache.mahout.cf.taste.impl.common.FullRunningAverage extends java.lang.Object implements Serializable

Serialized Fields

### count

    int count

### average

    double average

Class org.apache.mahout.cf.taste.impl.common.FullRunningAverageAndStdDev extends FullRunningAverage implements Serializable

Serialized Fields

### stdDev

    double stdDev

### sumX2

    double sumX2

Class org.apache.mahout.cf.taste.impl.common.WeightedRunningAverage extends java.lang.Object implements Serializable

Serialized Fields

### totalWeight

    double totalWeight

### average

    double average

Package org.apache.mahout.cf.taste.impl.eval

Class org.apache.mahout.cf.taste.impl.eval.IRStatisticsImpl extends java.lang.Object implements Serializable

Serialized Fields

### precision

    double precision

### recall

    double recall

### fallOut

    double fallOut

Package org.apache.mahout.cf.taste.impl.model

Class org.apache.mahout.cf.taste.impl.model.AbstractDataModel extends java.lang.Object implements Serializable

Serialized Fields

### maxPreference

    float maxPreference

### minPreference

    float minPreference

Class org.apache.mahout.cf.taste.impl.model.BooleanItemPreferenceArray extends java.lang.Object implements Serializable

Serialized Fields

### ids

    long[] ids

### id

    long id

Class org.apache.mahout.cf.taste.impl.model.BooleanPreference extends java.lang.Object implements Serializable

Serialized Fields

### userID

    long userID

### itemID

    long itemID

Class org.apache.mahout.cf.taste.impl.model.BooleanUserPreferenceArray extends java.lang.Object implements Serializable

Serialized Fields

### ids

    long[] ids

### id

    long id

Class org.apache.mahout.cf.taste.impl.model.GenericBooleanPrefDataModel extends AbstractDataModel implements Serializable

Serialized Fields

### userIDs

    long[] userIDs

### preferenceFromUsers

    FastByIDMap<V> preferenceFromUsers

### itemIDs

    long[] itemIDs

### preferenceForItems

    FastByIDMap<V> preferenceForItems

### timestamps

    FastByIDMap<V> timestamps

Class org.apache.mahout.cf.taste.impl.model.GenericDataModel extends AbstractDataModel implements Serializable

Serialized Fields

### userIDs

    long[] userIDs

### preferenceFromUsers

    FastByIDMap<V> preferenceFromUsers

### itemIDs

    long[] itemIDs

### preferenceForItems

    FastByIDMap<V> preferenceForItems

### timestamps

    FastByIDMap<V> timestamps

Class org.apache.mahout.cf.taste.impl.model.GenericItemPreferenceArray extends java.lang.Object implements Serializable

Serialized Fields

### ids

    long[] ids

### id

    long id

### values

    float[] values

Class org.apache.mahout.cf.taste.impl.model.GenericPreference extends java.lang.Object implements Serializable

Serialized Fields

### userID

    long userID

### itemID

    long itemID

### value

    float value

Class org.apache.mahout.cf.taste.impl.model.GenericUserPreferenceArray extends java.lang.Object implements Serializable

Serialized Fields

### ids

    long[] ids

### id

    long id

### values

    float[] values

Class org.apache.mahout.cf.taste.impl.model.PlusAnonymousUserDataModel extends java.lang.Object implements Serializable

Serialized Fields

### delegate

    DataModel delegate

### tempPrefs

    PreferenceArray tempPrefs

### prefItemIDs

    FastIDSet prefItemIDs

Package org.apache.mahout.cf.taste.impl.model.file

Class org.apache.mahout.cf.taste.impl.model.file.FileDataModel extends AbstractDataModel implements Serializable

Serialized Fields

### dataFile

    java.io.File dataFile

### lastModified

    long lastModified

### lastUpdateFileModified

    long lastUpdateFileModified

### delimiter

    char delimiter

### delimiterPattern

    java.util.regex.Pattern delimiterPattern

### hasPrefValues

    boolean hasPrefValues

### delegate

    DataModel delegate

### reloadLock

    java.util.concurrent.locks.ReentrantLock reloadLock

### transpose

    boolean transpose

### minReloadIntervalMS

    long minReloadIntervalMS

Package org.apache.mahout.cf.taste.impl.model.jdbc

Class org.apache.mahout.cf.taste.impl.model.jdbc.AbstractBooleanPrefJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Serialized Fields

### setPreferenceSQL

    java.lang.String setPreferenceSQL

Class org.apache.mahout.cf.taste.impl.model.jdbc.AbstractJDBCDataModel extends AbstractJDBCComponent implements Serializable

Serialized Fields

### dataSource

    javax.sql.DataSource dataSource

### preferenceTable

    java.lang.String preferenceTable

### userIDColumn

    java.lang.String userIDColumn

### itemIDColumn

    java.lang.String itemIDColumn

### preferenceColumn

    java.lang.String preferenceColumn

### getPreferenceSQL

    java.lang.String getPreferenceSQL

### getPreferenceTimeSQL

    java.lang.String getPreferenceTimeSQL

### getUserSQL

    java.lang.String getUserSQL

### getAllUsersSQL

    java.lang.String getAllUsersSQL

### getNumItemsSQL

    java.lang.String getNumItemsSQL

### getNumUsersSQL

    java.lang.String getNumUsersSQL

### setPreferenceSQL

    java.lang.String setPreferenceSQL

### removePreferenceSQL

    java.lang.String removePreferenceSQL

### getUsersSQL

    java.lang.String getUsersSQL

### getItemsSQL

    java.lang.String getItemsSQL

### getPrefsForItemSQL

    java.lang.String getPrefsForItemSQL

### getNumPreferenceForItemSQL

    java.lang.String getNumPreferenceForItemSQL

### getNumPreferenceForItemsSQL

    java.lang.String getNumPreferenceForItemsSQL

### getMaxPreferenceSQL

    java.lang.String getMaxPreferenceSQL

### getMinPreferenceSQL

    java.lang.String getMinPreferenceSQL

### cachedNumUsers

    int cachedNumUsers

### cachedNumItems

    int cachedNumItems

### itemPrefCounts

    Cache<K,V> itemPrefCounts

### maxPreference

    float maxPreference

### minPreference

    float minPreference

Class org.apache.mahout.cf.taste.impl.model.jdbc.GenericJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.MySQLBooleanPrefJDBCDataModel extends AbstractBooleanPrefJDBCDataModel implements Serializable

Class org.apache.mahout.cf.taste.impl.model.jdbc.MySQLJDBCDataModel extends AbstractJDBCDataModel implements Serializable

Package org.apache.mahout.cf.taste.impl.recommender

Class org.apache.mahout.cf.taste.impl.recommender.ByValueRecommendedItemComparator extends java.lang.Object implements Serializable

Class org.apache.mahout.cf.taste.impl.recommender.GenericRecommendedItem extends java.lang.Object implements Serializable

Serialized Fields

### itemID

    long itemID

### value

    float value

Package org.apache.mahout.cf.taste.model

Package org.apache.mahout.classifier.bayes.common

Class org.apache.mahout.classifier.bayes.common.ByScoreLabelResultComparator extends java.lang.Object implements Serializable

Package org.apache.mahout.classifier.bayes.exceptions

Class org.apache.mahout.classifier.bayes.exceptions.InvalidDatastoreException extends java.lang.Exception implements Serializable

Package org.apache.mahout.classifier.bayes.mapreduce.common

Class org.apache.mahout.classifier.bayes.mapreduce.common.FeatureLabelComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Package org.apache.mahout.classifier.discriminative

Class org.apache.mahout.classifier.discriminative.TrainingException extends java.lang.Exception implements Serializable

Package org.apache.mahout.common

Class org.apache.mahout.common.IntPairWritable extends org.apache.hadoop.io.BinaryComparable implements Serializable

Serialized Fields

### b

    byte[] b

Class org.apache.mahout.common.IntPairWritable.Comparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Class org.apache.mahout.common.IntPairWritable.FirstGroupingComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Class org.apache.mahout.common.IntPairWritable.Frequency extends java.lang.Object implements Serializable

Serialized Fields

### pair

    IntPairWritable pair

### frequency

    double frequency

Class org.apache.mahout.common.LongPair extends java.lang.Object implements Serializable

Serialized Fields

### first

    long first

### second

    long second

Class org.apache.mahout.common.Pair extends java.lang.Object implements Serializable

Serialized Fields

### first

    java.lang.Object first

### second

    java.lang.Object second

Class org.apache.mahout.common.RandomWrapper extends java.util.Random implements Serializable

Serialized Fields

### random

    java.util.Random random

### fixedSeed

    java.lang.Long fixedSeed

Class org.apache.mahout.common.TimingStatistics extends java.lang.Object implements Serializable

Serialized Fields

### nCalls

    int nCalls

### minTime

    long minTime

### maxTime

    long maxTime

### sumTime

    long sumTime

### sumSquaredTime

    double sumSquaredTime

Package org.apache.mahout.df.data

Class org.apache.mahout.df.data.DescriptorException extends java.lang.Exception implements Serializable

Package org.apache.mahout.ep

Class org.apache.mahout.ep.EvolutionaryProcess.EarlyTerminationException extends java.lang.RuntimeException implements Serializable

Package org.apache.mahout.math

Class org.apache.mahout.math.CardinalityException extends java.lang.IllegalArgumentException implements Serializable

Class org.apache.mahout.math.IndexException extends java.lang.IllegalArgumentException implements Serializable

Class org.apache.mahout.math.PersistentObject extends java.lang.Object implements Serializable

Class org.apache.mahout.math.SingularValueDecomposition extends java.lang.Object implements Serializable

Serialized Fields

### u

    double[][] u

### v

    double[][] v

### s

    double[] s

### m

    int m

### n

    int n

### transpositionNeeded

    boolean transpositionNeeded

Class org.apache.mahout.math.UnboundLabelException extends java.lang.RuntimeException implements Serializable

Package org.apache.mahout.math.hadoop.similarity

Class org.apache.mahout.math.hadoop.similarity.SimilarityMatrixEntryKey.SimilarityMatrixEntryKeyComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Class org.apache.mahout.math.hadoop.similarity.SimilarityMatrixEntryKey.SimilarityMatrixEntryKeyGroupingComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

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