'Wise independent' presentation slideshows

Derandomized Constructions of k -Wise (Almost) Independent Permutations

Derandomized Constructions of k -Wise (Almost) Independent Permutations. Tel-Aviv University. Weizmann Institute of Science. Eyal Kaplan Moni Naor Omer Reingold. k- wise independent functions. a family of functions G = {g| g: {0,1} n ? {0,1} n }

540 views • 40 slides

Why Simple Hash Functions Work : Exploiting the Entropy in a Data Stream

538 views • 34 slides

Sublinear Algorihms for Big Data

Sublinear Algorihms for Big Data. Lecture 2. Grigory Yaroslavtsev http://grigory.us. Recap. (Markov) For every ( Chebyshev ) For every ( Chernoff ) Let be independent and identically distributed r.vs with range [0, c] and expectation . Then if and. Today. Approximate Median

435 views • 31 slides

Foundations of Cryptography Lecture 12

Foundations of Cryptography Lecture 12. Lecturer: Moni Naor. Recap of Lecture 11. Pseudo-random functions Combining pseudo-random functions Concatenation Composing The GGM tree construction Pseudo-Random Permutations Feistal Permutations. Block-Ciphers :

402 views • 28 slides

How Should We Solve Search Problems Privately?

343 views • 26 slides

Estimating Distinct Elements, Optimally

Estimating Distinct Elements, Optimally. David Woodruff IBM Based on papers with Piotr Indyk, Daniel Kane, and Jelani Nelson. Problem Description. Given a long string of at most n distinct characters, count the number F 0 of distinct characters See characters one at a time

299 views • 17 slides

Breaking the Adaptivity Barrier for Deterministic Public-Key Encryption

265 views • 17 slides

Locally Testable Codes and Caylay Graphs

Locally Testable Codes and Caylay Graphs. Parikshit Gopalan (MSR-SVC) Salil Vadhan (Harvard) Yuan Zhou (CMU). Locally Testable Codes. Local tester for an [n, k, d] 2 linear code C Queries few coordinates Accepts codewords Rejects words far from the code with high probability

287 views • 17 slides

Estimating Distinct Elements, Optimally

Estimating Distinct Elements, Optimally. David Woodruff IBM Based on papers with Piotr Indyk, Daniel Kane, and Jelani Nelson. Problem Description. Given a long string of at most n distinct characters, count the number F 0 of distinct characters See characters one at a time

184 views • 17 slides