wehub-resource-sync
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/* ******************************************************************************
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*
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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* See the NOTICE file distributed with this work for additional
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* information regarding copyright ownership.
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_knn_mindistance)
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#include <ops/declarable/helpers/knn.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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template <typename T>
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void mindistance_(const void *vinput, const void *vlow, const void *vhigh, int32_t length, void *vout) {
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auto input = reinterpret_cast<const T *>(vinput);
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auto low = reinterpret_cast<const T *>(vlow);
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auto high = reinterpret_cast<const T *>(vhigh);
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auto output = reinterpret_cast<T *>(vout);
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T res = static_cast<T>(0.0f);
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T po = static_cast<T>(2.f);
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T o = static_cast<T>(1.f);
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for (auto e = 0; e < length; e++) {
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T p = input[e];
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T l = low[e];
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T h = high[e];
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if (!(l <= p || h <= p)) {
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if (p < l)
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res += math::sd_pow<T, T, T>((p - o), po);
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else
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res += math::sd_pow<T, T, T>((p - h), po);
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}
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}
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output[0] = math::sd_pow<T, T, T>(res, static_cast<T>(0.5f));
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}
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void knn_mindistance(NDArray&input, NDArray&lowest, NDArray&highest, NDArray &output) {
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NDArray::preparePrimaryUse({&output}, {&input, &lowest, &highest});
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BUILD_SINGLE_SELECTOR(input.dataType(), mindistance_,
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(input.buffer(), lowest.buffer(), highest.buffer(), input.lengthOf(), output.buffer()),
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SD_FLOAT_TYPES);
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NDArray::registerPrimaryUse({&output}, {&input, &lowest, &highest});
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}
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} // namespace helpers
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} // namespace ops
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} // namespace sd
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#endif |