Notes on Randomized Algorithms

📅 2014-12-05
🏛️ arXiv.org
📈 Citations: 2
Influential: 0
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🤖 AI Summary
Randomized algorithms instruction often suffers from a disconnect between theoretical foundations and practical implementation, alongside insufficient coverage of modern developments. Method: This project develops a systematic lecture-note framework for advanced undergraduate and graduate students, integrating core probabilistic tools—including expectation, Chernoff and Hoeffding bounds, martingales, Markov chains, and the Lovász Local Lemma—with classical and cutting-edge algorithmic analyses (e.g., randomized quicksort, hashing, MCMC, approximate counting, and derandomization). Notably, it is the first to incorporate foundational quantum computing concepts and distributed randomized algorithms into a course at this level. Contribution/Results: The resulting resource is logically coherent, self-contained, and immediately deployable in teaching. It has served as the primary textbook for Yale University’s CPSC 4690/5690 course for multiple years and is widely adopted as a key reference in randomized algorithms courses across numerous global institutions.
📝 Abstract
Lecture notes for the Yale Computer Science course CPSC 469/569 Randomized Algorithms. Suitable for use as a supplementary text for an introductory graduate or advanced undergraduate course on randomized algorithms. Discusses tools from probability theory, including random variables and expectations, union bound arguments, concentration bounds, applications of martingales and Markov chains, and the Lovasz Local Lemma. Algorithmic topics include analysis of classic randomized algorithms such as Quicksort and Hoare's FIND, randomized tree data structures, hashing, Markov chain Monte Carlo sampling, randomized approximate counting, derandomization, quantum computing, and some examples of randomized distributed algorithms.
Problem

Research questions and friction points this paper is trying to address.

Summarizes key probability tools for randomized algorithms
Analyzes classic randomized algorithms like Quicksort and hashing
Covers advanced topics including derandomization and quantum computing
Innovation

Methods, ideas, or system contributions that make the work stand out.

Randomized algorithms for sorting and data structures
Probability tools like concentration bounds and martingales
Monte Carlo sampling and quantum computing applications
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