'Choosing a hash function' diaporamas de présentation

Lecture 10: Hashing and Dynamic Dictionary

Lecture 10: Hashing and Dynamic Dictionary. Shang-Hua Teng. Dictionary/Table. Keys. Operation supported: search Given a student ID find the record (entry). Keys. Entry. Data Format. What if student ID is 9-digit social security number.

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CS 332: Algorithms

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ITCS 6114

ITCS 6114. Universal Hashing Dynamic Order Statistics. Choosing A Hash Function. Choosing the hash function well is crucial Bad hash function puts all elements in same slot A good hash function: Should distribute keys uniformly into slots Should not depend on patterns in the data

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CS 332: Algorithms

CS 332: Algorithms. Universal Hashing. Reminder: Homework 4. Programming assignment: Implement Skip Lists Evaluate performance Extra credit: compare performance to randomly built BST Due Mar 9 (Fri before Spring Break) Monday after break counts as 1 late day. Review: Resolving Collisions.

334 views • 19 slides