'Hashing function' diaporamas de présentation

Chapter 5. Functions

Chapter 5. Functions. Weiqi Luo ( ??? ) School of Software Sun Yat-Sen University Email ? weiqi.luo@yahoo.com Office ? A309. Chapter five: Functions. 5.1. Functions 5.2. Functions for Computer Science 5.3. Growth of Functions 5.4. Permutation Functions. 5.1. Functions.

978 views • 67 slides

Hashing

Hashing. Amihood Amir Bar Ilan University 2014. Direct Addressing. In old days: LD 1,1 LD 2,2 AD 1,2 ST 1,3 Today: C <- A+B. Direct Addressing. Compiler keeps track of: C <- A+B A in location 1 B in location 2 C in location 3 How?

737 views • 62 slides

Web Crawling

Web Crawling. Based on the slides by Filippo Menczer @ Indiana University School of Informatics in Web Data Mining by Bing Liu . Outline. Motivation and taxonomy of crawlers Basic crawlers and implementation issues Universal crawlers Crawler ethics and conflicts.

1.76k views • 52 slides

Lecture 07: INTEGERS Sections 2.4, 2.5, 2.6 Pages 153-212

Lecture 07: INTEGERS Sections 2.4, 2.5, 2.6 Pages 153-212. CS1050: Understanding and Constructing Proofs . Spring 2006. Jarek Rossignac. Lecture Objectives. Divisibility Primes GCD, LCM Congruence and applications: random, hash, ciphers

600 views • 41 slides

Course 4 ?? Search

Course 4 ?? Search. ? Outlines. ???? Search ???? Linear Search Binary Search Interpolation Search Hashing Advanced Tree Binary Search Tree AVL Tree M-way Search Tree B-tree Extended Binary Tree Weighted External Path Length (W. E. P. L) & Minimum W. E. P. L. ? Search ????.

569 views • 41 slides

Course 4 ?? Search

Course 4 ?? Search. ? Outlines. ???? Search ???? Linear Search Binary Search Interpolation Search Hashing. ? Search ????. Internal Search v.s. External Search. Static Search v.s. Dynamic Search. Partial Key v.s. Whole Key Actual Key v.s. Transformation Key. ?? : ??????

746 views • 40 slides

CHAPTER 14: Hashing

CHAPTER 14: Hashing. Java Software Structures: Designing and Using Data Structures Third Edition John Lewis & Joseph Chase. Chapter Objectives. Define hashing Examine various hashing functions Examine the problem of collisions in hash tables

514 views • 38 slides

Hashing

Hashing. Hashing. In the collections we have discussed thus far, we have made one of three assumptions regarding order: Order is unimportant. Example set Order is determined by the way elements are added. Example stacks, queues and list.

445 views • 32 slides

Hashing

1.12k views • 27 slides

Hashing Algorithm

526 views • 23 slides

296 views • 20 slides

Hashing for searching

Hashing for searching. Consider searching a database of records on a given key. There are three standard techniques:

295 views • 20 slides

NetFPGA Project: 4-Port Layer 2/3 Switch

NetFPGA Project: 4-Port Layer 2/3 Switch. Ankur Singla (asingla@stanford.edu) Gene Juknevicius (genej@stanford.edu). Agenda. NetFPGA Development Board Project Introduction Design Analysis Bandwidth Analysis Top Level Architecture Data Path Design Overview Control Path Design Overview

412 views • 19 slides

Hash Table Theory and chaining

Hash Table Theory and chaining. Hash Table. Formalism for hashing functions. Resolving collisions by chaining. Hash table: Theory and chaining. Form ? ? ism. Formalism for hashing functions. Lets denote by n the size of the hashing table.

304 views • 17 slides

5.2 Functions for Computer Science

5.2 Functions for Computer Science. In a previous section, we have come to understand the characteristic function. Universal Set (U)= {1,2,3,4,5,6,7,8,9,10} A = {4,7,9} A is a subset of the Universal Set. The characteristic function of A is defined as a function from U to {0,1} by:

147 views • 14 slides

This is a title

This is a title. Titles make PowerPoint happy. Up-Trees. (not as much work as it looks) Perform Disjoint Union-Find operations on Up-Tree with path compression and using weight (# of nodes) in merges. Starting with empty tree.

138 views • 13 slides

Hashing for dummies 1

183 views • 7 slides

Review Exam 3

Review Exam 3. Data structures covered: Hashing Priority queues and binary heaps Skip lists Disjoint sets Graphs For each of these data structures Basic idea of data structure and operations Be able to work out small example problems Prove related theorems Advantages and limitations

78 views • 7 slides

Introduction to Hash Tables

Introduction to Hash Tables. Remember! The array elements just hold references to the objects, not the objects themselves!. Arrays. Consider this array of Student records. Hyun. Chelsea. David. Abhinav. Fiona. Erik. Bing. Ina. Jim. Gheeta. [0]. [1]. [2]. [3]. [4]. [5]. [6].

164 views • 6 slides