Locality sensitive hashing — (LSH) is a method of performing probabilistic dimension reduction of high dimensional data. The basic idea is to hash the input items so that similar items are mapped to the same buckets with high probability (the number of buckets being much… … Wikipedia
Coalesced hashing — example. For purposes of this example, collision buckets are allocated in increasing order, starting with bucket 0. Coalesced hashing, also called coalesced chaining, is a strategy of collision resolution in a hash table that forms a hybrid of… … Wikipedia
Hash table — Not to be confused with Hash list or Hash tree. Unordered map redirects here. For the proposed C++ class, see unordered map (C++). Hash Table Type unsorted dictionary Invented 1953 Time complexity in big O notation Average Worst case Space … Wikipedia
Hash function — A hash function is any well defined procedure or mathematical function for turning some kind of data into a relatively small integer, that may serve as an index into an array. The values returned by a hash function are called hash values, hash… … Wikipedia
Linear hash — Linear Hashing is a dynamic hash table algorithm invented by Witold Litwin (1980) [ Citation | first1=Witold | last1=Litwin | title=Linear hashing: A new tool for file and table addressing | journal=Proc. 6th Conference on Very Large Databases |… … Wikipedia
Distributed hash table — A distributed hash table (DHT) is a class of a decentralized distributed system that provides a lookup service similar to a hash table; (key, value) pairs are stored in a DHT, and any participating node can efficiently retrieve the value… … Wikipedia
Computer Go — Part of a series of articles on Go (board game) Game specifics Go rules Go handicaps Go proverbs Go terms Go strategy and tactics Fuseki (whole board openings) Joseki (corner based openings) Life and death Tsumego … Wikipedia
Password cracking — is the process of recovering passwords from data that has been stored in or transmitted by a computer system. A common approach is to repeatedly try guesses for the password. The purpose of password cracking might be to help a user recover a… … Wikipedia
Algorithmic efficiency — In computer science, efficiency is used to describe properties of an algorithm relating to how much of various types of resources it consumes. Algorithmic efficiency can be thought of as analogous to engineering productivity for a repeating or… … Wikipedia
Rabin-Karp string search algorithm — The Rabin Karp algorithm is a string searching algorithm created by Michael O. Rabin and Richard M. Karp in 1987 that uses hashing to find a substring in a text. It is used for multiple pattern matching rather than single pattern matching. For… … Wikipedia
