Anatoly Volkov

Integrating OneDAL primitives for `LogisticRegression`

7

# Description #### Add scikit-learn-intelex interface for oneDAL algorithm objective_function - Defined new class LogisticLoss (defined in onedal/objective_function/objective_function.py). Its interface is almost alligned to LinearModelLoss class from stock scikit-learn https://github.com/scikit-learn/scikit-learn/blob/7db5b6a98ac6ad0976a3364966e214926ca8098a/sklearn/linear_model/_linear_loss.py#L9...

Add sparsity support for logloss function primitive

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# Description Implement functions that compute probabilities, logloss and derivative on sparse data using sparse blas. Integrate them into logloss_function and logloss_hessian_product primitives

Refactor TBB layer

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# Description Avoid using globalControl to control number of threads, use custom task arena for this purpose. Changes proposed in this pull request: - Add pointer task arena as ThreaderEnvironment...

Add spectral embedding algorithm

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# Description Add implementation for spectral embedding algorithm in DAAL and oneDAL interfaces for this algorithm