- index() - Method in interface librec.data.VectorEntry
-
Returns the current index
- init(double, double) - Method in class librec.data.DenseMatrix
-
Initialize a dense matrix with small Guassian values
NOTE: small initial values make it easier to train a
model; otherwise a very small learning rate may be needed (especially
when the number of factors is large) which can cause bad performance.
- init(double) - Method in class librec.data.DenseMatrix
-
initialize a dense matrix with small random values in (0, range)
- init() - Method in class librec.data.DenseMatrix
-
initialize a dense matrix with small random values in (0, 1)
- init(double, double) - Method in class librec.data.DenseVector
-
Initialize a dense vector with Gaussian values
- init() - Method in class librec.data.DenseVector
-
Initialize a dense vector with Uniform values in (0, 1)
- inner(DenseVector) - Method in class librec.data.DenseVector
-
Do vector operation: a^t * b
- inner(SparseVector) - Method in class librec.data.DenseVector
-
Do vector operation: a^t * b
- inner(SparseVector) - Method in class librec.data.SparseVector
-
- inv() - Method in class librec.data.DenseMatrix
-
NOTE: this implementation (adopted from PREA package) is slightly faster
than inverse
, especailly when numRows
is large.
- inverse() - Method in class librec.data.DenseMatrix
-
Deprecated.
use inv
instead which is slightly faster
- isItemAsUser() - Method in class librec.data.DataDAO
-
- isMultRun - Static variable in class librec.main.LibRec
-
- isRankingPred - Static variable in class librec.intf.Recommender
-
- ItemAverage - Class in librec.baseline
-
Baseline: predict by the average of target item's ratings
- ItemAverage(SparseMatrix, SparseMatrix, int) - Constructor for class librec.baseline.ItemAverage
-
- ItemKNN - Class in librec.core
-
Item-based Collaborative Filtering
- ItemKNN(SparseMatrix, SparseMatrix, int) - Constructor for class librec.core.ItemKNN
-
- IterativeRecommender - Class in librec.intf
-
Recommenders using iterative learning techniques
- IterativeRecommender(SparseMatrix, SparseMatrix, int) - Constructor for class librec.intf.IterativeRecommender
-
- iterator() - Method in class librec.data.SparseMatrix
-
- iterator() - Method in class librec.data.SparseVector
-