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Use chebyshev, canberra, hellinger and minkowski distance metrics (ra…
…pidsai#3990) This PR relies on RAFT PR rapidsai/raft#276 which adds these distance metrics support. Authors: - Mahesh Doijade (https://github.com/mdoijade) Approvers: - Dante Gama Dessavre (https://github.com/dantegd) - Corey J. Nolet (https://github.com/cjnolet) - AJ Schmidt (https://github.com/ajschmidt8) URL: rapidsai#3990
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Copyright (c) 2021, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| //#include <cuml/metrics/metrics.hpp> | ||
| #include <raft/distance/distance.cuh> | ||
| #include <raft/handle.hpp> | ||
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| namespace ML { | ||
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| namespace Metrics { | ||
| void pairwise_distance_canberra(const raft::handle_t &handle, const double *x, | ||
| const double *y, double *dist, int m, int n, | ||
| int k, raft::distance::DistanceType metric, | ||
| bool isRowMajor, double metric_arg) { | ||
| //Allocate workspace | ||
| raft::mr::device::buffer<char> workspace(handle.get_device_allocator(), | ||
| handle.get_stream(), 1); | ||
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| //Call the distance function | ||
| /* raft::distance::pairwise_distance(x, y, dist, m, n, k, workspace, metric, | ||
| handle.get_stream(), isRowMajor, | ||
| metric_arg);*/ | ||
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| switch (metric) { | ||
| case raft::distance::DistanceType::Canberra: | ||
| raft::distance::pairwise_distance_impl< | ||
| double, int, raft::distance::DistanceType::Canberra>( | ||
| x, y, dist, m, n, k, workspace, handle.get_stream(), isRowMajor); | ||
| break; | ||
| default: | ||
| THROW("Unknown or unsupported distance metric '%d'!", (int)metric); | ||
| } | ||
| } | ||
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| void pairwise_distance_canberra(const raft::handle_t &handle, const float *x, | ||
| const float *y, float *dist, int m, int n, | ||
| int k, raft::distance::DistanceType metric, | ||
| bool isRowMajor, float metric_arg) { | ||
| //Allocate workspace | ||
| raft::mr::device::buffer<char> workspace(handle.get_device_allocator(), | ||
| handle.get_stream(), 1); | ||
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| //Call the distance function | ||
| /* raft::distance::pairwise_distance(x, y, dist, m, n, k, workspace, metric, | ||
| handle.get_stream(), isRowMajor, | ||
| metric_arg);*/ | ||
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| switch (metric) { | ||
| case raft::distance::DistanceType::Canberra: | ||
| raft::distance::pairwise_distance_impl< | ||
| float, int, raft::distance::DistanceType::Canberra>( | ||
| x, y, dist, m, n, k, workspace, handle.get_stream(), isRowMajor); | ||
| break; | ||
| default: | ||
| THROW("Unknown or unsupported distance metric '%d'!", (int)metric); | ||
| } | ||
| } | ||
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| } // namespace Metrics | ||
| } // namespace ML |
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| /* | ||
| * Copyright (c) 2021, NVIDIA CORPORATION. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
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| #pragma once | ||
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| #include <raft/distance/distance.cuh> | ||
| #include <raft/handle.hpp> | ||
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| namespace ML { | ||
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| namespace Metrics { | ||
| void pairwise_distance_canberra(const raft::handle_t &handle, const double *x, | ||
| const double *y, double *dist, int m, int n, | ||
| int k, raft::distance::DistanceType metric, | ||
| bool isRowMajor, double metric_arg); | ||
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| void pairwise_distance_canberra(const raft::handle_t &handle, const float *x, | ||
| const float *y, float *dist, int m, int n, | ||
| int k, raft::distance::DistanceType metric, | ||
| bool isRowMajor, float metric_arg); | ||
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| } // namespace Metrics | ||
| } // namespace ML |
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