Recent research has studied the role of sparsity in high dimensional regression and signal reconstruction, establishing theoretical limits for recovering sparse models from sparse data. In this paper we study a variant of this problem where the original n input variables are compressed by a random linear transformation to m ≪ n examples in p dimensions, and establish conditions under which a sparse linear model can be successfully recovered from the compressed data. A primary motivation for this compression procedure is to anonymize the data and preserve privacy by revealing little information about the original data. We characterize the number of random projections that are required for l1-regularized compressed regression to identify the nonzero coefficients in the true model with probability approaching one, a property called "sparsistence." In addition, we show that l1-regularized compressed regression asymptotically predicts as well as an oracle linear model, a property called "persistence." Finally, we characterize the privacy properties of the compression procedure in information-theoretic terms, establishing upper bounds on the rate of information communicated between the compressed and uncompressed data that decay to zero.
Compressed Regression
Shuheng Zhou,J. Lafferty,L. Wasserman
Published 2007 in Neural Information Processing Systems
ABSTRACT
PUBLICATION RECORD
- Publication year
2007
- Venue
Neural Information Processing Systems
- Publication date
2007-06-04
- Fields of study
Mathematics, Computer Science
- Identifiers
- External record
- Source metadata
Semantic Scholar
CITATION MAP
EXTRACTION MAP
CLAIMS
- No claims are published for this paper.
CONCEPTS
- No concepts are published for this paper.
REFERENCES
Showing 1-37 of 37 references · Page 1 of 1
CITED BY
Showing 1-50 of 50 citing papers · Page 1 of 1