288 pp. per issue
6 x 9, illustrated
2014 Impact factor:

Neural Computation

June 2009, Vol. 21, No. 6, Pages 1589-1600.
(doi: 10.1162/neco.2009.05-08-785)
© 2009 Massachusetts Institute of Technology
A Binary Variable Model for Affinity Propagation
Article PDF (125.43 KB)

Affinity propagation (AP) was recently introduced as an unsupervised learning algorithm for exemplar-based clustering. We present a derivation of AP that is much simpler than the original one and is based on a quite different graphical model. The new model allows easy derivations of message updates for extensions and modifications of the standard AP algorithm. We demonstrate this by adjusting the new AP model to represent the capacitated clustering problem. For those wishing to investigate or extend the graphical model of the AP algorithm, we suggest using this new formulation since it allows a simpler and more intuitive model manipulation.