Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Notation
- Contributors
- 1 Introduction to Information Theory and Data Science.
- 2 An Information-Theoretic Approach to Analog-to-Digital Compression
- 3 Compressed Sensing via Compression Codes
- 4 Information-Theoretic Bounds on Sketching
- 5 Sample Complexity Bounds for Dictionary Learning from Vector- and Tensor-Valued Data
- 6 Uncertainty Relations and Sparse Signal Recovery
- 7 Understanding Phase Transitions via Mutual Information and MMSE
- 8 Computing Choice: Learning Distributions over Permutations
- 9 Universal Clustering
- 10 Information-Theoretic Stability and Generalization
- 11 Information Bottleneck and Representation Learning
- 12 Fundamental Limits in Model Selection for Modern Data Analysis
- 13 Statistical Problems with Planted Structures: Information-Theoretical and Computational Limits
- 14 Distributed Statistical Inference with Compressed Data
- 15 Network Functional Compression
- 16 An Introductory Guide to Fano’s Inequality with Applications in Statistical Estimation
- Index
- References
5 - Sample Complexity Bounds for Dictionary Learning from Vector- and Tensor-Valued Data
Published online by Cambridge University Press: 22 March 2021
- Frontmatter
- Dedication
- Contents
- Preface
- Notation
- Contributors
- 1 Introduction to Information Theory and Data Science.
- 2 An Information-Theoretic Approach to Analog-to-Digital Compression
- 3 Compressed Sensing via Compression Codes
- 4 Information-Theoretic Bounds on Sketching
- 5 Sample Complexity Bounds for Dictionary Learning from Vector- and Tensor-Valued Data
- 6 Uncertainty Relations and Sparse Signal Recovery
- 7 Understanding Phase Transitions via Mutual Information and MMSE
- 8 Computing Choice: Learning Distributions over Permutations
- 9 Universal Clustering
- 10 Information-Theoretic Stability and Generalization
- 11 Information Bottleneck and Representation Learning
- 12 Fundamental Limits in Model Selection for Modern Data Analysis
- 13 Statistical Problems with Planted Structures: Information-Theoretical and Computational Limits
- 14 Distributed Statistical Inference with Compressed Data
- 15 Network Functional Compression
- 16 An Introductory Guide to Fano’s Inequality with Applications in Statistical Estimation
- Index
- References
Summary
Dictionary learning has emerged as a powerful method for data-driven extraction of features from data. The initial focus was from an algorithmic perspective, but recently there has been increasing interest in the theoretical underpinnings. These rely on information-theoretic analytic tools and help us understand the fundamental limitations of dictionary-learning algorithms. We focus on theoretical aspects and summarize results on dictionary learning from vector- and tensor-valued data. Results are stated in terms of lower and upper bounds on sample complexity of dictionary learning, defined as the number of samples needed to identify or reconstruct the true dictionary underlying data from noiseless or noisy samples, respectively. Many analytic tools that help yield these results come from information theory, including restating the dictionary-learning problem as a channel-coding problem and connecting analysis of minimax risk in statistical estimation to Fano’s inequality. In addition to highlighting effects of parameters on the sample complexity of dictionary learning, we show the potential advantages of dictionary learning from tensor data and present unaddressed problems.
- Type
- Chapter
- Information
- Information-Theoretic Methods in Data Science , pp. 134 - 162Publisher: Cambridge University PressPrint publication year: 2021
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