linkage.hpp

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/*
 * Copyright (c) 2018-2025, 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.
 */
 
#pragma once
 
#include <cuml/cluster/single_linkage_output.hpp>
#include <cuml/common/distance_type.hpp>
 
#include <raft/core/handle.hpp>
 
namespace raft {
class handle_t;
}
 
namespace ML {
 
void single_linkage_pairwise(const raft::handle_t& handle,
                             const float* X,
                             size_t m,
                             size_t n,
                             ML::single_linkage_output<int>* out,
                             ML::distance::DistanceType metric,
                             int n_clusters = 5);
 
void single_linkage_neighbors(
  const raft::handle_t& handle,
  const float* X,
  size_t m,
  size_t n,
  ML::single_linkage_output<int>* out,
  ML::distance::DistanceType metric = ML::distance::DistanceType::L2Unexpanded,
  int c                             = 15,
  int n_clusters                    = 5);
 
void single_linkage_pairwise(const raft::handle_t& handle,
                             const float* X,
                             size_t m,
                             size_t n,
                             ML::single_linkage_output<int64_t>* out,
                             ML::distance::DistanceType metric,
                             int n_clusters = 5);
 
};  // namespace ML