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A simple hash function - PowerPoint PPT Presentation

Sets and Maps

Based on Chapter 9 of Koffmann and Wolfgang. Sets and Maps. Chapter Outline. The Map and Set interfaces and how to use them Hash coding and its use in efficient search & retrieval Two forms of hash tables: Open addressing Chaining Their relative benefits and performance tradeoffs

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820 views • 59 slides

Hash Functions

Hash Functions. Andy Wang Data Structures, Algorithms, and Generic Programming. Introduction. Hash function Maps keys to integers (buckets) Hash(Key) = Integer Ideally in a random-like manner Evenly distributed bucket values Even if the input data is not evenly distributed. An Example.

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468 views • 22 slides

Introduction to Hashing

Introduction to Hashing. CS 311 Winter, 2013. Dictionary Structure. A dictionary structure has the form: (Key, Data) Dictionary structures are organized in a manner that optimizes search time for the key. Hashing stores dictionary objects in a table where each location has an address.

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340 views • 15 slides

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'A simple hash function' diaporamas de présentation

A simple hash function - PowerPoint PPT Presentation

Sets and Maps

Hash Functions

Introduction to Hashing