In computer science, tabulation hashing is a method for constructing universal families of hash functions by combining table lookup with exclusive or operations. It was first studied in the form of Zobrist hashing for computer games; later work by Carter and Wegman extended this method to arbitrary fixed-length keys. Generalizations of tabulation hashing have also been developed that can handle variable-length keys such as text strings. Despite its simplicity, tabulation hashing has strong theoretical properties that distinguish it from some other hash functions. In particular, it is 3-independent: every 3-tuple of keys is equally likely to be mapped to any 3-tuple of hash values. However, it is not 4-independent. More sophisticated but slower variants of tabulation hashing extend the method to higher degrees of independence. Because of its high degree of independence, tabulation hashing is usable with hashing methods that require a high-quality hash function, including hopscotch hashing, cuckoo hashing, and the MinHash technique for estimating the size of set intersections. (Wikipedia).
Hash Tables and Hash Functions
This computer science video describes the fundamental principles of the hash table data structure which allows for very fast insertion and retrieval of data. It covers commonly used hash algorithms for numeric and alphanumeric keys and summarises the objectives of a good hash function. Co
From playlist Data Structures
An informal introduction to cryptography. Part of a larger series teaching programming at http://codeschool.org
From playlist Cryptography
Hash Table And HashMap In Python | Implementing Hash Tables Using Dictionary In Python | Edureka
** Python Certification Training: https://www.edureka.co/python ** This Edureka video on 'HashTables and HashMaps in Python' will help you learn how you to implement Hash Tables and HashMaps in Python using dictionaries. Below are the topics covered in this video: What is a Hash Table
From playlist Python Programming Tutorials | Edureka
Get the Code Here: http://goo.gl/srwIf Welcome to my Java Hash Table tutorial. A Hash Table is a data structure offers fast insertion and searching capabilities. The negative is that they are limited in size because they are based on arrays. They are also hard to order. People get confus
From playlist Java Algorithms
Learn how to read key-value pairs from a text file into a HashMap.
From playlist Intermediate Java
NOTACON 5: Current Election Technologies and How to Improve
Speakers: Smoke and Phreak This presentation will cover the current voting technologies from touch screens to optical scanners. We will also be covering the future of electronic election technologies, focusing on more securable software and hardware cryptographic protocols such as the Tru
From playlist Notacon 5
Excel Dynamic Arrays: Fully Dynamic Cross Tabulated Reports With Totals!!!!! EMT 1528
Download Excel File: https://people.highline.edu/mgirvin/YouTubeExcelIsFun/EMT1528.xlsx This video is a follow up to EMT 1520, and thanks to David Milbrandt, we now can have a fully Dynamic Cross Tabulates Report driven by formula inputs, and have totals at the Right and Bottom. This video
From playlist Single Cell Formula Reporting in the Excel Worksheet
MIT 6.851 Advanced Data Structures, Spring 2012 View the complete course: http://ocw.mit.edu/6-851S12 Instructor: Erik Demaine Dictionaries: universal, k-wise independent, simple tabulation hashing; chaining, dynamic perfect hashing, linear probing, cuckoo hashing License: Creative Commo
From playlist MIT 6.851 Advanced Data Structures, Spring 2012
Cryptographic Hash Functions: Part 1
Cryptographic Hash Functions Applications of Crypto Hash Functions Birthday Problem Secure Hash Algorithm (SHA)
From playlist Network Security
Kaggle Live Coding: Implementing Text Cluster Visualizations | Kaggle
This week we'll be implementing some text cluster visualization methods based on the visualization and summarization research we looked at a couple weeks ago. Come join! Link to notebook: https://www.kaggle.com/rtatman/forum-post-embeddings-clustering SUBSCRIBE: https://www.youtube.com/c
From playlist Kaggle Live Coding | Kaggle
C Programming: Cracking hashed passwords using a dictionary
In this session we'll learn how to crack an MD5 hash using a dictionary of candidate passwords. We will also learn how a Makefile can help automate compiling and running your program.
From playlist C Programming, Fall 2022
Building Rich, High Performance Tools for Practical Data Analysis
Recorded from a Live Webcast This talk is presented by Wes McKinney author of Python for Data Analysis and will be a somewhat advanced, technical talk connecting computer science concepts like data structure design and algorithms with the details of building intuitive, high performance, a
From playlist O'Reilly Webcasts 2
Excel 2010 Statistics #21: Cross Tabulation With PivotTable Frequencies and % Column & % Row
Download Excel File: https://people.highline.edu/mgirvin/AllClasses/210Excel2010/Content/Ch02/Busn210Excel2010Chapter02.xlsm 1. Cross Tabulation With PivotTable 2. % of Row Total Cross Tabulation 3. % of Column Total Cross Tabulation 4. Simpson's Paradox This is for the Highline Communi
From playlist Excel Pivot Tables (PivotTable) Tricks
CROSSTABULATION: Visualize Two Categorical Variables (4-2)
Crosstabulation summarizes two variables in a single table to make their relationship more clear. Variables must be categorical, although qualitative data can be binned. Data in the tables can be counts (frequency) or percentages.
From playlist Data Visualization for Variables in Statistics (WK 4 - QBA 237)
Cross Tabulation & Charts For Two Variables, Simpsons Paradox Download file: https://people.highline.edu/mgirvin/AllClasses/210Excel2013/Ch02/Excel2013StatisticsChapter02.xlsx Topics in this video shows how to create Cross Tabulated Tables, Clustered Column Chart, Stacked Column Chart,100%
From playlist Excel for Statistical Analysis in Business & Economics Free Course at YouTube (75 Videos)
What Is Hashing? | What Is Hashing With Example | Hashing Explained Simply | Simplilearn
š„Advanced Executive Program In Cybersecurity: https://www.simplilearn.com/pgp-advanced-executive-program-in-cyber-security?utm_campaign=WhatIsHashing&utm_medium=Descriptionff&utm_source=youtube š„Caltech Cybersecurity Bootcamp(US Only): https://www.simplilearn.com/cybersecurity-bootcamp?utm
From playlist Cyber Security Playlist [2023 Updated]š„
Cryptographic Hash Functions: Part 2
Cryptographic Hash Functions Applications of Crypto Hash Functions Birthday Problem Secure Hash Algorithm (SHA)
From playlist Network Security