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Affinity Propagation with Sparse Similarities
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Affinity Propagation with Sparse Similarities
============= DESCRIPTION ============= This program is an implementation of affinity propagation, a clustering algorithm by passing messages between data points. This program is optimized for sparse similarites, where there are O(n) finite similarites and others are negative infinity similarites. You can find the details about affinity propagation at the following URL: http://www.psi.toronto.edu/affinitypropagation/ ============== MAKE AND RUN ============== First, prepare a similarity file like: 272 0 4 -0.866169620986 8 15 -5.54097758238 3 221 -0.391640594901 10 0 -5.89035174724 77 102 -0.205104158914 135 248 -1.00319562134 98 40 -0.992369707296 68 132 -1.97837136257 ... Input specification is following: First line contains an integer standing for the size of the matrix. Following lines each contain two integers and a real number standing for the row index i, the column index j and the similarity s(i,j) respectively. Note that i and j are 0-origin. Input ends with an end-of-file. Then, make and run. (sim.txt is a similarity file mentioned above) $ make $ ./ap < sim.txt ========= LICENSE ========= The MIT License Copyright (c) 2010 NOJIMA Yusuke Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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