david-seiler commented on a change in pull request #14579: PDF operators for each distribution URL: https://github.com/apache/incubator-mxnet/pull/14579#discussion_r271750744
########## File path: src/operator/random/pdf_op.h ########## @@ -0,0 +1,594 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +/*! + * Copyright (c) 2018 by Contributors + * \file pdf_op.h + * \brief Operators for computing the pdf of random distributions. + */ +#ifndef MXNET_OPERATOR_RANDOM_PDF_OP_H_ +#define MXNET_OPERATOR_RANDOM_PDF_OP_H_ + +#include <mxnet/operator_util.h> +#include <vector> +#include <algorithm> +#include "../mshadow_op.h" +#include "../mxnet_op.h" +#include "../operator_common.h" +#include "../elemwise_op_common.h" +#include "../special_functions-inl.h" +#include "../tensor/broadcast_reduce_op.h" + +namespace mxnet { +namespace op { + +template<typename DType> +MSHADOW_XINLINE static DType ceph_psi(DType val) { return special_functions::cephes::psi(val); } +template<> +MSHADOW_XINLINE mshadow::half::half_t ceph_psi(mshadow::half::half_t val) { + return special_functions::cephes::psi<float>(val); +} + +template<bool logpdf> +struct PDF_Uniform { + template<typename DType, typename IType1, typename IType2> + MSHADOW_XINLINE static void Map(int start, int length, int sample_size, int index, + DType *out, IType1 *sample, IType2 *lower, IType2 *upper) { + const DType l(lower[index]), h(upper[index]); Review comment: It's gone. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
