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D

DataDAO - Class in librec.data
A data access object (DAO) to a data file
DataDAO(String, BiMap<String, Integer>, BiMap<String, Integer>) - Constructor for class librec.data.DataDAO
Constructor for a data DAO object
DataDAO(String) - Constructor for class librec.data.DataDAO
Contructor for data DAO object
DataDAO(String, BiMap<String, Integer>) - Constructor for class librec.data.DataDAO
Contructor for data DAO object
DataSplitter - Class in librec.data
Class to split/sample rating matrix
DataSplitter(SparseMatrix, int) - Constructor for class librec.data.DataSplitter
Construct a data splitter to split a given matrix into kfolds
DataSplitter(SparseMatrix) - Constructor for class librec.data.DataSplitter
Construct a data splitter with data source of a given rate matrix
DenseMatrix - Class in librec.data
Data Structure: dense matrix
A big reason that we do not adopt original DenseMatrix from M4J libraray is because the latter using one-dimensional array to store data, which will often cause OutOfMemory exception due to the limit of maximum length of a one-dimensional Java array.
DenseMatrix(int, int) - Constructor for class librec.data.DenseMatrix
Construct a dense matrix with specified dimensions
DenseMatrix(double[][]) - Constructor for class librec.data.DenseMatrix
Construct a dense matrix by copying data from a given 2D array
DenseMatrix(DenseMatrix) - Constructor for class librec.data.DenseMatrix
Construct a dense matrix by copying data from a given matrix
DenseVector - Class in librec.data
Data Structure: dense vector
DenseVector(int) - Constructor for class librec.data.DenseVector
Construct a dense vector with a specific size
DenseVector(double[]) - Constructor for class librec.data.DenseVector
Construct a dense vector by deeply copying data from a given array
DenseVector(double[], boolean) - Constructor for class librec.data.DenseVector
Construct a dense vector by copying data from a given array
DenseVector(DenseVector) - Constructor for class librec.data.DenseVector
Construct a dense vector by deeply copying data from a given vector
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