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Journal ArticleDOI

Learnability and the Vapnik-Chervonenkis dimension

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TLDR
This paper shows that the essential condition for distribution-free learnability is finiteness of the Vapnik-Chervonenkis dimension, a simple combinatorial parameter of the class of concepts to be learned.
Abstract
Valiant's learnability model is extended to learning classes of concepts defined by regions in Euclidean space En. The methods in this paper lead to a unified treatment of some of Valiant's results, along with previous results on distribution-free convergence of certain pattern recognition algorithms. It is shown that the essential condition for distribution-free learnability is finiteness of the Vapnik-Chervonenkis dimension, a simple combinatorial parameter of the class of concepts to be learned. Using this parameter, the complexity and closure properties of learnable classes are analyzed, and the necessary and sufficient conditions are provided for feasible learnability.

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Private Learning and Sanitization: Pure vs. Approximate Differential Privacy

TL;DR: In particular, the authors showed that the sample complexity of these problems can be significantly lower than that under pure differential privacy and approximate differential privacy, where the learner is required to only protect the privacy of the labels in the sample.
Book ChapterDOI

Time complexity of decision trees

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Proceedings ArticleDOI

Characterizing the sample complexity of private learners

TL;DR: This work gives a combinatorial characterization of the sample size sufficient and necessary to privately learn a class of concepts and demonstrates that a similar characterization holds for the database size needed for privately computing a large class of optimization problems and also for the well studied problem of private data release.
Journal ArticleDOI

Dynamical recognizers: real time language recognition by analog computers

TL;DR: A model of analog computer which can recognize various languages in real time by composing iterated maps, which can be seen as a real-time, constant-space, off-line version of Blum, Shub, and Smale's real-valued machines.
References
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Book

Computers and Intractability: A Guide to the Theory of NP-Completeness

TL;DR: The second edition of a quarterly column as discussed by the authors provides a continuing update to the list of problems (NP-complete and harder) presented by M. R. Garey and myself in our book "Computers and Intractability: A Guide to the Theory of NP-Completeness,” W. H. Freeman & Co., San Francisco, 1979.
Book

The Art of Computer Programming

TL;DR: The arrangement of this invention provides a strong vibration free hold-down mechanism while avoiding a large pressure drop to the flow of coolant fluid.
Book

Pattern classification and scene analysis

TL;DR: In this article, a unified, comprehensive and up-to-date treatment of both statistical and descriptive methods for pattern recognition is provided, including Bayesian decision theory, supervised and unsupervised learning, nonparametric techniques, discriminant analysis, clustering, preprosessing of pictorial data, spatial filtering, shape description techniques, perspective transformations, projective invariants, linguistic procedures, and artificial intelligence techniques for scene analysis.