Machine Learning Markets

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Prediction markets show considerable promise for developing flexible mechanisms for machine learning. Here, machine learning markets for multivariate systems are defined, and a utility-based framework is established for their analysis. This differs from the usual approach of defining static betting functions. It is shown that such markets can implement model combination methods used in machine learning, such as product of expert and mixture of expert approaches as equilibrium pricing models, by varying agent utility functions. They can also implement models composed of local potentials, and message passing methods. Prediction markets also allow for more flexible combinations, by combining multiple different utility functions. Conversely, the market mechanisms implement inference in the relevant probabilistic models. This means that market mechanism can be utilized for implementing parallelized model building and inference for probabilistic modelling.
Original languageEnglish
Title of host publicationProceedings of the 14th International Conference on Artificial Intelligence and Statistics
Pages716-724
Number of pages9
Publication statusPublished - 22 Jun 2011

Publication series

NameJMLR Workshop and Conference Proceedings
Volume15

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