# 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 Exception implements Serializable

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

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

Serialized Fields

### keys

    long[] keys

### values

    Object[] values

### loadFactor

    float loadFactor

### 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 Object implements Serializable

Serialized Fields

### keys

    long[] keys

### loadFactor

    float loadFactor

### numEntries

    int numEntries

### numSlotsUsed

    int numSlotsUsed

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

Serialized Fields

### keys

    Object[] keys

### values

    Object[] values

### loadFactor

    float loadFactor

### 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 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 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

### mk

    double mk

### sk

    double sk

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

Serialized Fields

### totalWeight

    double totalWeight

### average

    double average

Class org.apache.mahout.cf.taste.impl.common.WeightedRunningAverageAndStdDev extends WeightedRunningAverage implements Serializable

Serialized Fields

### totalSquaredWeight

    double totalSquaredWeight

### totalWeightedData

    double totalWeightedData

### totalWeightedSquaredData

    double totalWeightedSquaredData

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

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

Serialized Fields

### precision

    double precision

### recall

    double recall

### fallOut

    double fallOut

### ndcg

    double ndcg

### reach

    double reach

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

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

Serialized Fields

### maxPreference

    float maxPreference

### minPreference

    float minPreference

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

Serialized Fields

### ids

    long[] ids

### id

    long id

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

Serialized Fields

### userID

    long userID

### itemID

    long itemID

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

Serialized Fields

### ids

    long[] ids

### id

    long id

### values

    float[] values

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

Serialized Fields

### userID

    long userID

### itemID

    long itemID

### value

    float value

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

Serialized Fields

### ids

    long[] ids

### id

    long id

### values

    float[] values

Class org.apache.mahout.cf.taste.impl.model.PlusAnonymousConcurrentUserDataModel extends PlusAnonymousUserDataModel implements Serializable

Serialized Fields

### tempPrefs

    Map<K,V> tempPrefs

  Preferences for all anonymous users

### prefItemIDs

    Map<K,V> prefItemIDs

  Item IDs set for all anonymous users

### usersPool

    Queue<E> usersPool

  Pool of the users (FIFO)

Class org.apache.mahout.cf.taste.impl.model.PlusAnonymousUserDataModel extends 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

    File dataFile

### lastModified

    long lastModified

### lastUpdateFileModified

    long lastUpdateFileModified

### delimiter

    char delimiter

### delimiterPattern

    com.google.common.base.Splitter delimiterPattern

### hasPrefValues

    boolean hasPrefValues

### delegate

    DataModel delegate

### reloadLock

    ReentrantLock reloadLock

### transpose

    boolean transpose

### minReloadIntervalMS

    long minReloadIntervalMS

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

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

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

Serialized Fields

### itemID

    long itemID

### value

    float value

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

Package org.apache.mahout.classifier.df.data

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

Package org.apache.mahout.common

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 Object implements Serializable

Serialized Fields

### pair

    IntPairWritable pair

### frequency

    double frequency

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

Serialized Fields

### first

    long first

### second

    long second

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

Serialized Fields

### first

    Object first

### second

    Object second

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

Serialized Fields

### random

    org.apache.commons.math3.random.RandomGenerator random

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

Serialized Fields

### nCalls

    int nCalls

### minTime

    long minTime

### maxTime

    long maxTime

### sumTime

    long sumTime

### leadSumTime

    long leadSumTime

### sumSquaredTime

    double sumSquaredTime

Package org.apache.mahout.fpm.pfpgrowth

Class org.apache.mahout.fpm.pfpgrowth.CountDescendingPairComparator extends Object implements Serializable

Package org.apache.mahout.math

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

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

Class org.apache.mahout.math.OrderedIntDoubleMapping extends Object implements Serializable

Serialized Fields

### indices

    int[] indices

### values

    double[] values

### numMappings

    int numMappings

### noDefault

    boolean noDefault

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

Class org.apache.mahout.math.SingularValueDecomposition extends 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.WeightedVectorComparator extends Object implements Serializable

Package org.apache.mahout.math.hadoop.stochasticsvd

Class org.apache.mahout.math.hadoop.stochasticsvd.SplitPartitionedWritable.SplitGroupingComparator extends org.apache.hadoop.io.WritableComparator implements Serializable

Package org.apache.mahout.math.random

Class org.apache.mahout.math.random.IndianBuffet.ImpossibleException extends RuntimeException implements Serializable

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