Intel® oneAPI Data Analytics Library Developer Guide and Reference

Developer Guide and Reference

  • 2021.6
  • 04/11/2022
  • Public Content
Contents

Recommendation Systems Usage Model

A typical workflow for methods of recommendation systems includes training and prediction, as explained below.

Algorithm-Specific Parameters

The parameters used by recommender algorithms at each stage depend on a specific algorithm. For a list of these parameters, refer to the description of an appropriate recommender algorithm.

Training Stage

Recommendation Systems Usage Model: Training Stage
At the training stage, recommender algorithms accept the input described below. Pass the
Input ID
 as a parameter to the methods that provide input for your algorithm. For more details, see Algorithms.
Training Input for Recommender Algorithms
Input ID
Input
data
Pointer to the LaTex Math image. numeric table with the mining data.
This table can be an object of any class derived from
NumericTable
 except
PackedTriangularMatrix
 and
PackedSymmetricMatrix
.
At the training stage, recommender algorithms calculate the result described below. Pass the
Result ID
 as a parameter to the methods that access the results of your algorithm. For more details, see Algorithms.
Training Output for Recommender Algorithms
Result ID
Result
model
Model with initialized item factors.
The result can only be an object of the
Model
 class.

Prediction Stage

Recommendation Systems Usage Model: Prediction Stage
At the prediction stage, recommender algorithms accept the input described below. Pass the
Input ID
 as a parameter to the methods that provide input for your algorithm. For more details, see Algorithms.
Prediction Input for Recommender Algorithms
Input ID
Input
model
Model with initialized item factors.
This input can only be an object of the
Model
 class.
At the prediction stage, recommender algorithms calculate the result described below. Pass the
Result ID
 as a parameter to the methods that access the results of your algorithm. For more details, see Algorithms.
Prediction Output for Recommender Algorithms
Result ID
Result
prediction
Pointer to the LaTex Math image. numeric table with predicted ratings.
By default, this table is an object of the
HomogenNumericTable
 class, but you can define it as an object of any class derived from
NumericTable
 except
PackedSymmetricMatrix
,
PackedTriangularMatrix
, and
CSRNumericTable
.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.