mirror of
https://github.com/ceres-solver/ceres-solver.git
synced 2026-08-29 16:40:38 +08:00
Keir Mierle
7492b0d8de
Since Ceres is moving to using GitHub for issues, and the Google Code URL in the current copyright header will soon become invalid, update all the headers. Change-Id: I1fce70375d1bcf098591f07b4d8f01a5c1e0789c
75 lines
3.0 KiB
C++
75 lines
3.0 KiB
C++
// Ceres Solver - A fast non-linear least squares minimizer
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// Copyright 2015 Google Inc. All rights reserved.
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// http://ceres-solver.org/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: sameeragarwal@google.com (Sameer Agarwal)
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#ifndef CERES_INTERNAL_SINGLE_LINKAGE_CLUSTERING_H_
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#define CERES_INTERNAL_SINGLE_LINKAGE_CLUSTERING_H_
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// This include must come before any #ifndef check on Ceres compile options.
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#include "ceres/internal/port.h"
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#ifndef CERES_NO_SUITESPARSE
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#include "ceres/collections_port.h"
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#include "ceres/graph.h"
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namespace ceres {
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namespace internal {
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struct SingleLinkageClusteringOptions {
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SingleLinkageClusteringOptions()
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: min_similarity(0.99) {
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}
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// Graph edges with edge weight less than min_similarity are ignored
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// during the clustering process.
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double min_similarity;
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};
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// Compute a partitioning of the vertices of the graph using the
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// single linkage clustering algorithm. Edges with weight less than
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// SingleLinkageClusteringOptions::min_similarity will be ignored.
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//
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// membership upon return will contain a mapping from the vertices of
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// the graph to an integer indicating the identity of the cluster that
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// it belongs to.
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//
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// The return value of this function is the number of clusters
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// identified by the algorithm.
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int ComputeSingleLinkageClustering(
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const SingleLinkageClusteringOptions& options,
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const WeightedGraph<int>& graph,
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HashMap<int, int>* membership);
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} // namespace internal
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} // namespace ceres
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#endif // CERES_NO_SUITESPARSE
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#endif // CERES_INTERNAL_SINGLE_LINKAGE_CLUSTERING_H_
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