Sampling (statistics)

Expander walk sampling

In the mathematical discipline of graph theory, the expander walk sampling theorem intuitively states that sampling vertices in an expander graph by doing relatively short random walk can simulate sampling the vertices independently from a uniform distribution.The earliest version of this theorem is due to , and the more general version is typically attributed to . (Wikipedia).

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Chernoff bounds for expander walks - Christopher Beck

Christopher Beck Member, School of Mathematics March 10, 2015 Expander walk sampling is an important tool for derandomization. For any bounded function, sampling inputs from a random walk on an expander graph yields a sample average which is quite close to the true mean, and moreover the d

From playlist Computer Science/Discrete Mathematics

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Expander Random Walks: A Fourier-Analytic Approach - Gil Cohen

Computer Science/Discrete Mathematics Seminar I Topic: Expander Random Walks: A Fourier-Analytic Approach Speaker: Gil Cohen Affiliation: Tel Aviv University Date: September 20, 2021 A random walk on expanders, despite its strong underlying correlations, poses extremely useful pseudora

From playlist Mathematics

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Surveys & questionnaires (2)

Powered by https://www.numerise.com/ Surveys & questionnaires (2)

From playlist Collecting data

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Statistics Lecture 1.5 Part 1

Statistics Lecture 1.5 Part 1: Sampling Techniques

From playlist Statistics Playlist 1

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High Dimensional Expanders - Ori Parzanchevski

Ori Parzanchevski Hebrew University of Jerusalem; Member, School of Mathematics October 1, 2013 For more videos, visit http://video.ias.edu

From playlist Mathematics

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Research Methods 1: Sampling Techniques

In this video, I discuss several types of sampling: random sampling, stratified random sampling, cluster sampling, systematic sampling, and convenience sampling. The figures presented are adopted/adapted from: https://www.pngkey.com/detail/u2y3q8q8e6o0u2t4_population-and-sample-graphic-de

From playlist Research Methods

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Dimension expanders via rank condensers - Micheal Forbes

Michael Forbes Member, School of Mathematics February 3, 2015 Expander graphs are sparse graphs with good connectivity properties and they have become ubiquitous in theoretical computer science. Dimension expanders are a linear-algebraic variant where we ask for a constant number of linea

From playlist Mathematics

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Building Expanders in Three Steps - Amir Yehudayoff

Amir Yehudayoff Technion-Israel; Institute for Advanced Study February 23, 2012 The talk will have 2 parts (between the parts we will have a break). In the first part, we will discuss two options for using groups to construct expander graphs (Cayley graphs and Schreier diagrams). Specifica

From playlist Mathematics

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Nexus Trimester - Christian Sohler (TU Dortmund)

Testing Cluster Structure of Graphs Christian Sohler (TU Dortmund) march 07, 2016 Abstract: We study the problem of recognizing the cluster structure of a graph in the framework of property testing in the bounded degree model. Given a parameter eps, a d-bounded degree graph is defined to

From playlist 2016-T1 - Nexus of Information and Computation Theory - CEB Trimester

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Random Walks on Dynamic Graphs by John Augustine

Games, Epidemics and Behavior URL: http://www.icts.res.in/discussion_meeting/geb2016/ DATES: Monday 27 Jun, 2016 - Friday 01 Jul, 2016 VENUE : Madhava lecture hall, ICTS Bangalore DESCRIPTION: The two main goals of this Discussion Meeting are: 1. To explore the foundations of policy d

From playlist Games, Epidemics and Behavior

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Solving Laplacian Systems of Directed Graphs - John Peebles

Computer Science/Discrete Mathematics Seminar II Topic: Solving Laplacian Systems of Directed Graphs Speaker: John Peebles Affiliation: Member, School of Mathematics Date: March 02, 2021 For more video please visit http://video.ias.edu

From playlist Mathematics

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Bounded Harmonic Functions on Graphs by Itai Benjamini

PROGRAM: PROBABILISTIC METHODS IN NEGATIVE CURVATURE (ONLINE) ORGANIZERS: Riddhipratim Basu (ICTS - TIFR, Bengaluru), Anish Ghosh (TIFR, Mumbai) and Mahan M J (TIFR, Mumbai) DATE & TIME: 01 March 2021 to 12 March 2021 VENUE: Online Due to the ongoing COVID pandemic, the meeting will

From playlist Probabilistic Methods in Negative Curvature (Online)

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Directed Laplacian Matrices - John Peebles

Short Talks by Postdoctoral Members Topic: Directed Laplacian Matrices Speaker: John Peebles Affiliation: Member, School of Mathematics Date: September 28, 2021

From playlist Mathematics

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List decoding with double samplers - Inbal Livni-Navon

Computer Science/Discrete Mathematics Seminar I Topic: List decoding with double samplers Speaker: Inbal Livni-Navon Affiliation: Weizmann Institute Date: December 6, 2021 The ABNNR encoding is a classical encoding scheme that amplifies the distance of an error correcting code. The enco

From playlist Mathematics

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#21. Finding the Sample Size Needed to Estimate a Population Proportion using StatCrunch

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys #21. Finding the Sample Size Needed to Estimate a Population Proportion using StatCrunch

From playlist Statistics Final Exam

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Localization schemes: A framework for proving mixing bounds for Markov chains - Ronen Eldan

Computer Science/Discrete Mathematics Seminar II Topic: Localization schemes: A framework for proving mixing bounds for Markov chains Speaker: Ronen Eldan Affiliation: von Neumann Fellow, School of Mathematics Date: March 15, 2022 Two recent and seemingly-unrelated techniques for proving

From playlist Mathematics

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Sigmoid functions for population growth and A.I.

Some elaborations on sigmoid functions. https://en.wikipedia.org/wiki/Sigmoid_function https://www.learnopencv.com/understanding-activation-functions-in-deep-learning/ If you have any questions of want to contribute to code or videos, feel free to write me a message on youtube or get my co

From playlist Analysis

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High dimensional expanders - Part 2 - Irit Dinur

Computer Science/Discrete Mathematics Seminar II Topic: High dimensional expanders - Part 2 Speaker: Irit Dinur Affiliation: Weizmann Institute of Science; Visiting Professor, School of Mathematics Date: March 24, 2020 For more video please visit http://video.ias.edu

From playlist Mathematics

Related pages

Stochastic matrix | Graph theory | Eigenvalues and eigenvectors | Random walk | Derandomization | Sampling (statistics) | Mathematics | Vertex (graph theory) | Markov's inequality | Expander graph | Ramanujan graph | Bit