Serialized Form (LensKit 1.3 API)

Package org.grouplens.lenskit
- Class org.grouplens.lenskit.RecommenderBuildException extends Exception implements Serializable
Package org.grouplens.lenskit.baseline
- Class org.grouplens.lenskit.baseline.AbstractBaselinePredictor extends Object implements Serializable
- Class org.grouplens.lenskit.baseline.ConstantPredictor extends AbstractBaselinePredictor implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - value
```
double value
```
- Class org.grouplens.lenskit.baseline.GlobalMeanPredictor extends ConstantPredictor implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.baseline.ItemMeanPredictor extends AbstractBaselinePredictor implements Serializable
  
  serialVersionUID:
  
  3L
  - Serialized Fields
    - itemMeans
```
ImmutableSparseVector itemMeans
```
    - globalMean
```
double globalMean
```
    - damping
```
double damping
```
- Class org.grouplens.lenskit.baseline.ItemUserMeanPredictor extends AbstractBaselinePredictor implements Serializable
  
  serialVersionUID:
  
  3L
  - Serialized Fields
    - itemMeanOffsets
```
ImmutableSparseVector itemMeanOffsets
```
    - userMeanOffsets
```
ImmutableSparseVector userMeanOffsets
```
    - globalMean
```
double globalMean
```
    - damping
```
double damping
```
- Class org.grouplens.lenskit.baseline.LeastSquaresPredictor extends AbstractBaselinePredictor implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - userOffsets
```
ImmutableSparseVector userOffsets
```
    - itemOffsets
```
ImmutableSparseVector itemOffsets
```
    - mean
```
double mean
```
- Class org.grouplens.lenskit.baseline.UserMeanPredictor extends AbstractBaselinePredictor implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - globalMean
```
double globalMean
```
    - damping
```
double damping
```
    - userMeans
```
ImmutableSparseVector userMeans
```
Package org.grouplens.lenskit.collections
- Class org.grouplens.lenskit.collections.IntIntervalList extends AbstractIntList implements Serializable
  
  serialVersionUID:
  
  -914440213158448384L
  - Serialized Fields
    - startIndex
```
int startIndex
```
    - endIndex
```
int endIndex
```
- Class org.grouplens.lenskit.collections.LongSortedArraySet extends AbstractLongSortedSet implements Serializable
  
  serialVersionUID:
  
  885774794586510968L
  - Serialized Fields
    - data
```
long[] data
```
    - start
```
int start
```
    - end
```
int end
```
    - mask
```
BitSet mask
```
- Class org.grouplens.lenskit.collections.ScoredLongArrayList extends Object implements Serializable
  
  serialVersionUID:
  
  5831057078223040093L
  - Serialized Fields
    - itemList
```
LongList itemList
```
    - scoreList
```
DoubleList scoreList
```
Package org.grouplens.lenskit.core
- Class org.grouplens.lenskit.core.RecommenderConfigurationException extends RecommenderBuildException implements Serializable
Package org.grouplens.lenskit.data.dao
- Class org.grouplens.lenskit.data.dao.DataAccessException extends RuntimeException implements Serializable
- Class org.grouplens.lenskit.data.dao.UnsupportedQueryException extends IllegalArgumentException implements Serializable
  
  serialVersionUID:
  
  -1340119072527578247L
Package org.grouplens.lenskit.data.history
- Class org.grouplens.lenskit.data.history.RatingVectorUserHistorySummarizer extends Object implements Serializable
  
  serialVersionUID:
  
  2L
Package org.grouplens.lenskit.data.pref
- Class org.grouplens.lenskit.data.pref.PreferenceDomain extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - minimum
```
double minimum
```
    - maximum
```
double maximum
```
    - precision
```
double precision
```
Package org.grouplens.lenskit.data.sql
- Class org.grouplens.lenskit.data.sql.DatabaseAccessException extends DataAccessException implements Serializable
Package org.grouplens.lenskit.eval
- Class org.grouplens.lenskit.eval.ExecutionInfo extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - algoName
```
String algoName
```
    - algoAttributes
```
Map<K,V> algoAttributes
```
    - dataName
```
String dataName
```
    - dataAttributes
```
Map<K,V> dataAttributes
```
- Class org.grouplens.lenskit.eval.TaskExecutionException extends Exception implements Serializable
  
  serialVersionUID:
  
  -9073424874249517829L
Package org.grouplens.lenskit.eval.traintest
- Class org.grouplens.lenskit.eval.traintest.SharedPreferenceSnapshot extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - snapshot
```
PreferenceSnapshot snapshot
```
Package org.grouplens.lenskit.iterative
- Class org.grouplens.lenskit.iterative.ErrorThresholdStoppingCondition extends Object implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - threshold
```
double threshold
```
    - minIterations
```
int minIterations
```
- Class org.grouplens.lenskit.iterative.IterationCountStoppingCondition extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - iterCount
```
int iterCount
```
- Class org.grouplens.lenskit.iterative.ThresholdStoppingCondition extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - threshold
```
double threshold
```
    - minIterations
```
int minIterations
```
Package org.grouplens.lenskit.knn.item
- Class org.grouplens.lenskit.knn.item.DefaultItemScoreAlgorithm extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - neighborhoodSize
```
int neighborhoodSize
```
- Class org.grouplens.lenskit.knn.item.ItemVectorSimilarity extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - delegate
```
VectorSimilarity delegate
```
- Class org.grouplens.lenskit.knn.item.SimilaritySumNeighborhoodScorer extends Object implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.knn.item.WeightedAverageNeighborhoodScorer extends Object implements Serializable
  
  serialVersionUID:
  
  1L
Package org.grouplens.lenskit.knn.item.model
- Class org.grouplens.lenskit.knn.item.model.SimilarityMatrixModel extends Object implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - similarityMatrix
```
Long2ObjectMap<V> similarityMatrix
```
    - itemUniverse
```
LongSortedSet itemUniverse
```
Package org.grouplens.lenskit.knn.user
- Class org.grouplens.lenskit.knn.user.SimpleNeighborhoodFinder extends Object implements Serializable
  
  serialVersionUID:
  
  -6324767320394518347L
  - Serialized Fields
    - dataSource
```
DataAccessObject dataSource
```
    - neighborhoodSize
```
int neighborhoodSize
```
    - similarity
```
UserSimilarity similarity
```
    - normalizer
```
UserVectorNormalizer normalizer
```
    - userVectorCache
```
Long2ObjectMap<V> userVectorCache
```
- Class org.grouplens.lenskit.knn.user.UserVectorSimilarity extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - delegate
```
VectorSimilarity delegate
```
Package org.grouplens.lenskit.mf.funksvd
- Class org.grouplens.lenskit.mf.funksvd.FeatureInfo extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - feature
```
int feature
```
    - userAverage
```
double userAverage
```
    - itemAverage
```
double itemAverage
```
    - singularValue
```
double singularValue
```
    - trainingErrors
```
DoubleList trainingErrors
```
- Class org.grouplens.lenskit.mf.funksvd.FunkSVDModel extends Object implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - featureCount
```
int featureCount
```
    - numUser
```
int numUser
```
    - numItem
```
int numItem
```
    - itemFeatures
```
double[][] itemFeatures
```
    - userFeatures
```
double[][] userFeatures
```
    - clampingFunction
```
ClampingFunction clampingFunction
```
    - featureInfo
```
List<E> featureInfo
```
    - itemIndex
```
Index itemIndex
```
    - userIndex
```
Index userIndex
```
    - baseline
```
BaselinePredictor baseline
```
- Class org.grouplens.lenskit.mf.funksvd.FunkSVDUpdateRule extends Object implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - learningRate
```
double learningRate
```
    - trainingRegularization
```
double trainingRegularization
```
    - useTrailingEstimate
```
boolean useTrailingEstimate
```
    - baseline
```
BaselinePredictor baseline
```
    - clampingFunction
```
ClampingFunction clampingFunction
```
    - stoppingCondition
```
StoppingCondition stoppingCondition
```
- Class org.grouplens.lenskit.mf.funksvd.SparseMatrix extends Object implements Serializable
  
  serialVersionUID:
  
  -2396174756253967431L
  - Serialized Fields
    - data
```
List<E> data
```
Package org.grouplens.lenskit.slopeone
- Class org.grouplens.lenskit.slopeone.SlopeOneModel extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - matrix
```
Long2ObjectMap<V> matrix
```
Package org.grouplens.lenskit.symbols
- Class org.grouplens.lenskit.symbols.Symbol extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialization Methods
    - readResolve
```
private Object readResolve()
                    throws ObjectStreamException
```
      Throws:
      
      ObjectStreamException
  - Serialized Fields
    - name
```
String name
```
- Class org.grouplens.lenskit.symbols.TypedSymbol extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialization Methods
    - readResolve
```
private Object readResolve()
                    throws ObjectStreamException
```
      Throws:
      
      ObjectStreamException
  - Serialized Fields
    - type
```
Class<T> type
```
    - symbol
```
Symbol symbol
```
Package org.grouplens.lenskit.transform.clamp
- Class org.grouplens.lenskit.transform.clamp.IdentityClampingFunction extends Object implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.transform.clamp.RatingRangeClampingFunction extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - domain
```
PreferenceDomain domain
```
Package org.grouplens.lenskit.transform.normalize
- Class org.grouplens.lenskit.transform.normalize.BaselineSubtractingUserVectorNormalizer extends AbstractUserVectorNormalizer implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - baselinePredictor
```
BaselinePredictor baselinePredictor
```
- Class org.grouplens.lenskit.transform.normalize.DefaultItemVectorNormalizer extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - delegate
```
VectorNormalizer delegate
```
- Class org.grouplens.lenskit.transform.normalize.DefaultUserVectorNormalizer extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - delegate
```
VectorNormalizer delegate
```
- Class org.grouplens.lenskit.transform.normalize.IdentityVectorNormalizer extends AbstractVectorNormalizer implements Serializable
  
  serialVersionUID:
  
  -6708410675383598691L
- Class org.grouplens.lenskit.transform.normalize.MeanVarianceNormalizer extends AbstractVectorNormalizer implements Serializable
  
  serialVersionUID:
  
  -7890335060797112954L
  - Serialized Fields
    - damping
```
double damping
```
    - globalVariance
```
double globalVariance
```
- Class org.grouplens.lenskit.transform.normalize.UnitVectorNormalizer extends AbstractVectorNormalizer implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - tolerance
```
double tolerance
```
Package org.grouplens.lenskit.transform.quantize
- Class org.grouplens.lenskit.transform.quantize.PreferenceDomainQuantizer extends ValueArrayQuantizer implements Serializable
  
  serialVersionUID:
  
  8258336921679357985L
  - Serialized Fields
    - domain
```
PreferenceDomain domain
```
- Class org.grouplens.lenskit.transform.quantize.ValueArrayQuantizer extends Object implements Serializable
  
  serialVersionUID:
  
  2150927895689488171L
  - Serialized Fields
    - values
```
double[] values
```
      The values to quantize to. Subclasses must not modify this array after the object has been constructed.
Package org.grouplens.lenskit.transform.threshold
- Class org.grouplens.lenskit.transform.threshold.AbsoluteThreshold extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - value
```
double value
```
- Class org.grouplens.lenskit.transform.threshold.NoThreshold extends Object implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.transform.threshold.RealThreshold extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - thresholdValue
```
double thresholdValue
```
Package org.grouplens.lenskit.transform.truncate
- Class org.grouplens.lenskit.transform.truncate.NoOpTruncator extends Object implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.transform.truncate.ThresholdTruncator extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - threshold
```
Threshold threshold
```
- Class org.grouplens.lenskit.transform.truncate.TopNTruncator extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - threshold
```
ThresholdTruncator threshold
```
    - n
```
int n
```
Package org.grouplens.lenskit.util
- Class org.grouplens.lenskit.util.Indexer extends Object implements Serializable
  
  serialVersionUID:
  
  -8383883342128686850L
  - Serialized Fields
    - indexes
```
Long2IntMap indexes
```
    - ids
```
LongArrayList ids
```
Package org.grouplens.lenskit.vectors
- Class org.grouplens.lenskit.vectors.ImmutableSparseVector extends SparseVector implements Serializable
  
  serialVersionUID:
  
  -2L
  - Serialized Fields
    - channelMap
```
Map<K,V> channelMap
```
    - typedChannelMap
```
Map<K,V> typedChannelMap
```
- Class org.grouplens.lenskit.vectors.ImmutableVec extends Vec implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.vectors.MutableSparseVector extends SparseVector implements Serializable
  
  serialVersionUID:
  
  2L
  - Serialized Fields
    - channelMap
```
Map<K,V> channelMap
```
    - typedChannelMap
```
Map<K,V> typedChannelMap
```
- Class org.grouplens.lenskit.vectors.MutableVec extends Vec implements Serializable
  
  serialVersionUID:
  
  1L
- Class org.grouplens.lenskit.vectors.SparseVector extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - keys
```
long[] keys
```
    - usedKeys
```
BitSet usedKeys
```
    - values
```
double[] values
```
    - domainSize
```
int domainSize
```
- Class org.grouplens.lenskit.vectors.TypedSideChannel extends AbstractLong2ObjectMap<V> implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - keys
```
long[] keys
```
    - usedKeys
```
BitSet usedKeys
```
    - values
```
Object[] values
```
    - domainSize
```
int domainSize
```
    - frozen
```
boolean frozen
```
- Class org.grouplens.lenskit.vectors.Vec extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - data
```
double[] data
```
Package org.grouplens.lenskit.vectors.similarity
- Class org.grouplens.lenskit.vectors.similarity.CosineVectorSimilarity extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - dampingFactor
```
double dampingFactor
```
- Class org.grouplens.lenskit.vectors.similarity.MutualInformationVectorSimilarity extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - quantizer
```
Quantizer quantizer
```
- Class org.grouplens.lenskit.vectors.similarity.PearsonCorrelation extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - shrinkage
```
double shrinkage
```
- Class org.grouplens.lenskit.vectors.similarity.SignificanceWeightedVectorSimilarity extends Object implements Serializable
  
  serialVersionUID:
  
  1L
  - Serialized Fields
    - threshold
```
int threshold
```
    - delegate
```
VectorSimilarity delegate
```
- Class org.grouplens.lenskit.vectors.similarity.SpearmanRankCorrelation extends Object implements Serializable
  
  serialVersionUID:
  
  3023239202579332883L
  - Serialized Fields
    - pearson
```
PearsonCorrelation pearson
```

Serialized Form

Package org.grouplens.lenskit

Class org.grouplens.lenskit.RecommenderBuildException extends Exception implements Serializable

Package org.grouplens.lenskit.baseline

Class org.grouplens.lenskit.baseline.AbstractBaselinePredictor extends Object implements Serializable

Class org.grouplens.lenskit.baseline.ConstantPredictor extends AbstractBaselinePredictor implements Serializable

Serialized Fields

value

Class org.grouplens.lenskit.baseline.GlobalMeanPredictor extends ConstantPredictor implements Serializable

Class org.grouplens.lenskit.baseline.ItemMeanPredictor extends AbstractBaselinePredictor implements Serializable

Serialized Fields

itemMeans

globalMean

damping

Class org.grouplens.lenskit.baseline.ItemUserMeanPredictor extends AbstractBaselinePredictor implements Serializable

Serialized Fields

itemMeanOffsets

userMeanOffsets

globalMean

damping

Class org.grouplens.lenskit.baseline.LeastSquaresPredictor extends AbstractBaselinePredictor implements Serializable

Serialized Fields

userOffsets

itemOffsets

mean

Class org.grouplens.lenskit.baseline.UserMeanPredictor extends AbstractBaselinePredictor implements Serializable

Serialized Fields

globalMean

damping

userMeans

Package org.grouplens.lenskit.collections

Class org.grouplens.lenskit.collections.IntIntervalList extends AbstractIntList implements Serializable

Serialized Fields

startIndex

endIndex

Class org.grouplens.lenskit.collections.LongSortedArraySet extends AbstractLongSortedSet implements Serializable

Serialized Fields

data

start

end

mask

Class org.grouplens.lenskit.collections.ScoredLongArrayList extends Object implements Serializable

Serialized Fields

itemList

scoreList

Package org.grouplens.lenskit.core

Class org.grouplens.lenskit.core.RecommenderConfigurationException extends RecommenderBuildException implements Serializable

Package org.grouplens.lenskit.data.dao

Class org.grouplens.lenskit.data.dao.DataAccessException extends RuntimeException implements Serializable

Class org.grouplens.lenskit.data.dao.UnsupportedQueryException extends IllegalArgumentException implements Serializable

Package org.grouplens.lenskit.data.history

Class org.grouplens.lenskit.data.history.RatingVectorUserHistorySummarizer extends Object implements Serializable

Package org.grouplens.lenskit.data.pref

Class org.grouplens.lenskit.data.pref.PreferenceDomain extends Object implements Serializable

Serialized Fields

minimum

maximum

precision

Package org.grouplens.lenskit.data.sql

Class org.grouplens.lenskit.data.sql.DatabaseAccessException extends DataAccessException implements Serializable

Package org.grouplens.lenskit.eval

Class org.grouplens.lenskit.eval.ExecutionInfo extends Object implements Serializable

Serialized Fields

algoName

algoAttributes

dataName

dataAttributes

Class org.grouplens.lenskit.eval.TaskExecutionException extends Exception implements Serializable

Package org.grouplens.lenskit.eval.traintest

Class org.grouplens.lenskit.eval.traintest.SharedPreferenceSnapshot extends Object implements Serializable

Serialized Fields

snapshot

Package org.grouplens.lenskit.iterative

Class org.grouplens.lenskit.iterative.ErrorThresholdStoppingCondition extends Object implements Serializable

Serialized Fields

threshold

minIterations

Class org.grouplens.lenskit.iterative.IterationCountStoppingCondition extends Object implements Serializable

Serialized Fields

iterCount