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Algorithms for Big Data

Indian Institute of Technology Madras via NPTEL

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Overview

In this course, you will learn how to design and analyse algorithms in the streaming and property testing models of computation. The algorithms will be analysed mathematically, so it is intended for a mathematically mature audience with prior knowledge of algorithm design and basic probability theory. 
Traditional algorithms work well when the input data fits entirely within memory. In many modern application contexts, however, the size of the input data is too large to fit within memory. In some cases, data is stored in large data centres or clouds and specific parts of it can be accessed via queries. In some other application contexts, very large volume of data may stream through a computer one item at a time. So the algorithm will get to see the data typically as a single pass, but will not be able to store the data for future reference. In this course, we will introduce computational models, algorithms and analysis techniques aimed at addressing such big data contexts.

Syllabus

1 Intro to Probability Theory
2 Tail bounds with Applications
3 Markov Chains and Random Walks
4 Randomized Algorithms against an Oblivious Adversary
5 Pairwise Independence and Universal Hashing
6 The Streaming Model
7 Approximate Counting
8 Approximate Median
9 Flajolet Martin -- Distinct Sampling
10 Alon-Mattias-Szegedy Sketch
11 Bloom Filters
12 Count-min Sketch
13 Property Testing Model
14 Local search and testing connectivity
15 Enforce and Test Techique: Biclique and Bipartiteness Testing
16 Random Walks and Testing Bipartiteness & Expansion
17 Regularity Lemma and Testing Triangle Freeness
18 Boolean Functions, BLR test for Linearity.

Taught by

John Augustine

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