Github user avulanov commented on the pull request:
https://github.com/apache/spark/pull/1290#issuecomment-98810426
Just wanted to update on the further development of this topic. We're
finishing testing new implementation of artificial neural network, there are
few issues though. Features: logistic and softmax activation functions, mean
squared and cross-entropy errors, extensible interfaces, batch computations,
BLAS optimized and memory reuse, supports GradientDescent and LBFGS optimizers.
https://github.com/avulanov/spark/tree/ann-interface-gemm
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