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Grover's original paper described the algorithm as a database search algorithm, and this description is still common. The database in this analogy is a table of all of the function's outputs, indexed by the corresponding input. However, this database is not represented explicitly. Instead, an oracle is invoked to evaluate an item by its index.
Inverted index. In computer science, an inverted index (also referred to as a postings list, postings file, or inverted file) is a database index storing a mapping from content, such as words or numbers, to its locations in a table, or in a document or a set of documents (named in contrast to a forward index, which maps from documents to ...
Database search technology is used by large public and private entities including government database services, e-commerce companies, online advertising platforms, telecommunications service providers and other consumers with a need to access information in large repositories. See also. Outline of search engines; List of search engines
Owner. Microsoft. URL. academic .research .microsoft .com. Commercial. No. Microsoft Academic Search was a research project and academic search engine retired in 2012. It relaunched in 2016 as Microsoft Academic, which in turn was shut down in 2022. The content of the latter was allegedly incorporated into The Lens.
Search engine (computing) In computing, a search engine is an information retrieval software system designed to help find information stored on one or more computer systems. Search engines discover, crawl, transform, and store information for retrieval and presentation in response to user queries. The search results are usually presented in a ...
Entrez. The Entrez ( IPA: [ɒnˈtreɪ]) [1] Global Query Cross-Database Search System is a federated search engine, or web portal that allows users to search many discrete health sciences databases at the National Center for Biotechnology Information (NCBI) website. [2] The NCBI is a part of the National Library of Medicine (NLM), which is ...
Hash table. A small phone book as a hash table. In computing, a hash table, also known as a hash map or a hash set, is a data structure that implements an associative array, also called a dictionary, which is an abstract data type that maps keys to values. [2] A hash table uses a hash function to compute an index, also called a hash code, into ...
Semantic search. Semantic search denotes search with meaning, as distinguished from lexical search where the search engine looks for literal matches of the query words or variants of them, without understanding the overall meaning of the query. [1] Semantic search seeks to improve search accuracy by understanding the searcher's intent and the ...