Abstract:
:In pattern recognition, data integration is an important issue, and when properly done, it can lead to improved performance. Also, data integration can be used to help model and understand multimodal processing in the brain. Amari proposed α-integration as a principled way of blending multiple positive measures (e.g., stochastic models in the form of probability distributions), enabling an optimal integration in the sense of minimizing the α-divergence. It also encompasses existing integration methods as its special case, for example, a weighted average and an exponential mixture. The parameter α determines integration characteristics, and the weight vector w assigns the degree of importance to each measure. In most work, however, α and w are given in advance rather than learned. In this letter, we present a parameter learning algorithm for learning α and ω from data when multiple integrated target values are available. Numerical experiments on synthetic as well as real-world data demonstrate the effectiveness of the proposed method.
journal_name
Neural Computjournal_title
Neural computationauthors
Choi H,Choi S,Choe Ydoi
10.1162/NECO_a_00445subject
Has Abstractpub_date
2013-06-01 00:00:00pages
1585-604issue
6eissn
0899-7667issn
1530-888Xjournal_volume
25pub_type
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