Density Ratio Estimation in Machine Learning

Front Cover
Cambridge University Press, Feb 20, 2012 - Computers - 329 pages
0 Reviews
Reviews aren't verified, but Google checks for and removes fake content when it's identified
Machine learning is an interdisciplinary field of science and engineering that studies mathematical theories and practical applications of systems that learn. This book introduces theories, methods, and applications of density ratio estimation, which is a newly emerging paradigm in the machine learning community. Various machine learning problems such as non-stationarity adaptation, outlier detection, dimensionality reduction, independent component analysis, clustering, classification, and conditional density estimation can be systematically solved via the estimation of probability density ratios. The authors offer a comprehensive introduction of various density ratio estimators including methods via density estimation, moment matching, probabilistic classification, density fitting, and density ratio fitting as well as describing how these can be applied to machine learning. The book also provides mathematical theories for density ratio estimation including parametric and non-parametric convergence analysis and numerical stability analysis to complete the first and definitive treatment of the entire framework of density ratio estimation in machine learning.

What people are saying - Write a review

We haven't found any reviews in the usual places.


Part II Methods of DensityRatio Estimation
Part III Applications of Density Ratios in Machine Learning
Part IV Theoretical Analysis of DensityRatio Estimation
Part V Conclusions

Other editions - View all

Common terms and phrases

About the author (2012)

Masashi Sugiyama is an Associate Professor in the Department of Computer Science at the Tokyo Institute of Technology.

Taiji Suzuki is an Assistant Professor in the Department of Mathematical Informatics at the University of Tokyo, Japan.

Takafumi Kanamori is an Associate Professor in the Department of Computer Science and Mathematical Informatics at Nagoya University, Japan.