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java.lang.Objectorg.mymedialite.datatype.SymmetricMatrix<java.lang.Float>
org.mymedialite.correlation.CorrelationMatrix
org.mymedialite.correlation.RatingCorrelationMatrix
public abstract class RatingCorrelationMatrix
CorrelationMatrix that computes correlations over rating data.
Field Summary |
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Fields inherited from class org.mymedialite.correlation.CorrelationMatrix |
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numEntities |
Fields inherited from class org.mymedialite.datatype.SymmetricMatrix |
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data, dim |
Constructor Summary | |
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RatingCorrelationMatrix(int num_entities)
Constructor. |
Method Summary | |
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abstract void |
computeCorrelations(IRatings ratings,
EntityType entity_type)
Compute the correlations for a given entity type from a rating dataset. |
Methods inherited from class org.mymedialite.correlation.CorrelationMatrix |
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addEntity, create, getNearestNeighbors, getPositivelyCorrelatedEntities, isSymmetric, readCorrelationMatrix, sumUp, write |
Methods inherited from class org.mymedialite.datatype.SymmetricMatrix |
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createMatrix, get, grow, init, numberOfColumns, numberOfRows, set, transpose |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public RatingCorrelationMatrix(int num_entities)
num_entities
- the number of entitiesMethod Detail |
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public abstract void computeCorrelations(IRatings ratings, EntityType entity_type)
ratings
- the rating dataentity_type
- EntityType.USER or EntityType.ITEM
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