Count sketch is a type of dimensionality reduction that is particularly efficient in statistics, machine learning and algorithms.It was invented by Moses Charikar, Kevin Chen and Martin Farach-Colton in an effort to speed up the by Alon, Matias and Szegedy for approximating the frequency moments of streams. The sketch is nearly identical to the Feature hashing algorithm by John Moody, but differs in its use of hash functions with low dependence, which makes it more practical.In order to still have a high probability of success, the is used to aggregate multiple count sketches, rather than the mean. These properties allow use for explicit kernel methods, bilinear pooling in neural networks and is a cornerstone in many numerical linear algebra algorithms. (Wikipedia).
Microsoft Excel lesson 5 - count and countif functions
In this lesson you learn how to use the functions count and countif to count how many cells contain specific values. Link to Excel Lessons Playlist: https://www.youtube.com/playlist?list=PLzr5fRV1AGV9CMSWzCjFExhEfzDxZcGFX
From playlist Microsoft Excel tutorials
Mr Excel & excelisfun Trick 17: Count Times Greater Than 5 M
Download Files: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/MrExcelExcelisfunTrick17.xls See Mr Excel and excelisfun create 5 formulas to count times greater than five minutes. See the Excel functions COUNTIF and TIME. See different syntaxes for the criteria argument in the COUN
From playlist Excel Series: Mr Excel & excelisfun Excel Tricks
How to count to 1000 on two hands
Typically when we think of counting on two hands, we count up to 10, but fingers can contain much more information than that! This video shows how to think about counting in binary.
From playlist Shorter videos
Excel Magic Trick 658: COUNT Vs. COUNTA function
Download Files: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/EMT648-660.xlsx See how to use the COUNT & COUNTA functions correctly. COUNT counts numbers. COUNTA counts non-empty cells. See how COUNTA counts: Logicals, Numbers, ERRORs, FORMULAs and Words. See how COUNT counts just
From playlist Excel Series: Magic Tricks (4th 200 videos)
Statistics Lecture 4.7 Part 1: Principles of Counting. Permutations and Combinations
From playlist Statistics Playlist 1
Statistics Lecture 4.7 Part 2: Principles of Counting. Permutations and Combinations
From playlist Statistics Playlist 1
!!Con 2016 - Don’t forget to sketch! Running with large datasets By Adam Marcus
Don’t forget to sketch! Running with large datasets By Adam Marcus Large datasets got you down? Have no fear! Make them small! Sketches are probabilistic data structures: they store a rough outline of a dataset in way less space than the dataset itself takes up. We'll sketch out three ske
From playlist !!Con 2016
#328 ESP32 Secrets: Interrupts, and Deep-Sleep under the Hood
Do you need speedy reactions and simple coding? Then, interrupts are a good thing to use. And, because interrupts have things in common with deep-sleep, we will also dig into that topic. And we will find some “Secrets of the ESP32”. For sure, we will look “under its hood.” I am a proud Pat
From playlist ESP32
Excel Magic Trick 1156: Count with Two Conditions / Criteria From Non-Proper Data Set (2 Methods)
Download Excel Start File: https://excelisfun.net/files/EMT1156.xlsx Download File: https://excelisfun.net/ See how to Count the “N” (New) and “U” (Used) for Each Sale 1. (00:08 minute mark) Problem Setup 2. (01:08 minute mark) Two COUNTIFS functions with Mixed Cell References (Longer for
From playlist Excel Series: Magic Tricks (6th 200 videos)
Live from sfpc.io! Help us caption & translate this video! http://amara.org/v/QbtW/ 📄 Code of Conduct: https://github.com/CodingTrain/Code-of-Conduct
From playlist Live Stream Archive
Relative Error Tensor Low Rank Approximation by David Woodruff
Statistical Physics Methods in Machine Learning DATE:26 December 2017 to 30 December 2017 VENUE:Ramanujan Lecture Hall, ICTS, Bengaluru The theme of this Discussion Meeting is the analysis of distributed/networked algorithms in machine learning and theoretical computer science in the "th
From playlist Statistical Physics Methods in Machine Learning
O'Reilly Webcast: Expanding the Capabilities of your Arduino Projects
Michael Margolis is the author of Arduino Cookbook 2nd Edition, a collection of projects utilizing the physical computing platform of Arduino, the open source electronics prototyping platform. In this webcast Michael will discuss how to combine and apply multiple techniques from the Arduin
From playlist O'Reilly Webcasts 2
Kahn’s Square and Kant’s Square: Which Kind of “Intuition” in Architects’ Sketches - Philippe Boudon
Kahn’s Square and Kant’s Square: Which Kind of “Intuition” in Architects’ Sketches Philippe Boudon
From playlist CASVA symposium
Nexus Trimester - Stephen Chestnut (ETH Zurich)
Streaming Symmetric Norms via Measure Concentration Stephen Chestnut (ETH Zurich) February 29, 2016 Abstract: We characterize the streaming space complexity of every symmetric norm [Math Processing Error] (a norm on [Math Processing Error] invariant under sign-flips and coordinate-permuta
From playlist Nexus Trimester - 2016 - Central Workshop
Chapter 5 of the Dimensions series. See http://www.dimensions-math.org for more information. Press the 'CC' button for subtitles.
From playlist Dimensions
Learning-Based Sketching Algorithms - Piotr Indyk
Seminar on Theoretical Machine Learning Topic: Learning-Based Sketching Algorithms Speaker: Piotr Indyk Affiliation: Massachusetts Institute of Technology Date: August 25, 2020 For more video please visit http://video.ias.edu
From playlist Mathematics
Nexus Trimester - Graham Cormode (University of Warwick) 2/2
Streram, sketching and Big Data - 2/2 Graham Cormode (University of Warwick) March 08, 2016 Abstract: A fundamental challenge in processing the massive quantities of information generated by modern applications is in extracting suitable representations of the data that can be stored, mani
From playlist 2016-T1 - Nexus of Information and Computation Theory - CEB Trimester
Introduction to Geometer's Sketchpad: Measurements
This video demonstrates some of the measurement and calculation features of Geometer's Sketchpad.
From playlist Geometer's Sketchpad
Statistics Lecture 4.7 Part 6: Principles of Counting. Permutations and Combinations
From playlist Statistics Playlist 1
Nexus Trimester - David Woodruff (IBM Almaden)
Sketching as a Tool for Numerical Linear Algebra and Recent Developments David Woodruff (IBM Almaden) March 03, 206 Abstract: We give near optimal algorithms for regression, low rank approximation, and robust variants of these problems. Our results are based on the sketch and solve parad
From playlist Nexus Trimester - 2016 - Central Workshop