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Information retrieval

Index Information retrieval

Information retrieval (IR) is the activity of obtaining information system resources relevant to an information need from a collection of information resources. [1]

109 relations: Adversarial information retrieval, Allen Kent, Alvin M. Weinberg, As We May Think, Association for Computing Machinery, Bayes' theorem, Binary Independence Model, C. J. van Rijsbergen, Calvin Mooers, Case Western Reserve University, Center for Intelligent Information Retrieval, CERN, Co-occurrence, Collaborative information seeking, Communications of the ACM, Computational linguistics, Conference on Information and Knowledge Management, Controlled vocabulary, Cross-language information retrieval, Cyril Cleverdon, Data mining, Database, Desk Set, Dimensionality reduction, Divergence-from-randomness model, Don R. Swanson, Emanuel Goldberg, Eugene Garfield, European Conference on Information Retrieval, European Summer School in Information Retrieval, Extended Boolean model, Frederick Wilfrid Lancaster, Full-text search, Fuzzy retrieval, Generalized vector space model, Gerard Salton, Gerard Salton Award, Ground truth, Hans Peter Luhn, Herman Hollerith, Human–computer information retrieval, Hypertext, Independence (mathematical logic), Information extraction, Information overload, Information retrieval applications, Information Retrieval Facility, Information system, J. C. R. Licklider, Jacquard loom, ..., Joseph Marie Jacquard, Journal of the Association for Information Science and Technology, Karen Spärck Jones, Keypunch, Language model, Latent Dirichlet allocation, Latent semantic analysis, Learning to rank, Massachusetts Institute of Technology, MEDLINE, Melvin Earl Maron, Memory, Metadata, Mind map, Multimedia information retrieval, National Institute of Standards and Technology, Nearest centroid classifier, Nicholas J. Belkin, Nick Jardine, Okapi BM25, Orthogonality, Personal information management, Precision and recall, Probabilistic relevance model, Punched card, Relevance (information retrieval), Relevance feedback, Ricardo Baeza-Yates, Robert M. Hayes, Robert R. Korfhage, Scalability, Search engine indexing, Set (mathematics), SMART Information Retrieval System, Social information seeking, Special Interest Group on Information Retrieval, Standard Boolean model, Subject indexing, Tabulating machine, Ted Nelson, Temporal information retrieval, Text corpus, Text Retrieval Conference, Tf–idf, The Atlantic, The Web Conference, Tim Berners-Lee, Tony Kent Strix award, Topic-based vector space model, Uncertain inference, UNIVAC, Vannevar Bush, Vector space model, Visualization (graphics), Web search engine, Well-posed problem, World Wide Web, XML retrieval, 1890 United States Census. Expand index (59 more) »

Adversarial information retrieval

Adversarial information retrieval (adversarial IR) is a topic in information retrieval related to strategies for working with a data source where some portion of it has been manipulated maliciously.

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Allen Kent

Allen Kent (October 24, 1921 – May 1, 2014) was an information scientist.

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Alvin M. Weinberg

Alvin Martin Weinberg (April 20, 1915 – October 18, 2006) was an American nuclear physicist who was the administrator at Oak Ridge National Laboratory (ORNL) during and after the Manhattan Project.

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As We May Think

"As We May Think" is a 1945 essay by Vannevar Bush which has been described as visionary and influential, anticipating many aspects of information society.

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Association for Computing Machinery

The Association for Computing Machinery (ACM) is an international learned society for computing.

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Bayes' theorem

In probability theory and statistics, Bayes’ theorem (alternatively Bayes’ law or Bayes' rule, also written as Bayes’s theorem) describes the probability of an event, based on prior knowledge of conditions that might be related to the event.

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Binary Independence Model

The Binary Independence Model (BIM) is a probabilistic information retrieval technique that makes some simple assumptions to make the estimation of document/query similarity probability feasible.

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C. J. van Rijsbergen


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Calvin Mooers

Calvin Northrup Mooers (October 24, 1919 – December 1, 1994), was an American computer scientist known for his work in information retrieval and for the programming language TRAC.

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Case Western Reserve University

Case Western Reserve University (also known as Case Western Reserve, Case Western, Case, and CWRU) is a private doctorate-granting university in Cleveland, Ohio.

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Center for Intelligent Information Retrieval

Center for Intelligent Information Retrieval (CIIR) is a research center at the Department of Computer Science, University of Massachusetts Amherst.

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The European Organization for Nuclear Research (Organisation européenne pour la recherche nucléaire), known as CERN (derived from the name Conseil européen pour la recherche nucléaire), is a European research organization that operates the largest particle physics laboratory in the world.

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In linguistics, co-occurrence or cooccurrence refers to an above-chance frequency of occurrence of two terms (also known as coincidence or concurrence) from a text corpus alongside each other in a certain order.

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Collaborative information seeking

Collaborative information seeking (CIS) is a field of research that involves studying situations, motivations, and methods for people working in collaborative groups for information seeking projects, as well as building systems for supporting such activities.

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Communications of the ACM

Communications of the ACM is the monthly journal of the Association for Computing Machinery (ACM).

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Computational linguistics

Computational linguistics is an interdisciplinary field concerned with the statistical or rule-based modeling of natural language from a computational perspective, as well as the study of appropriate computational approaches to linguistic questions.

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Conference on Information and Knowledge Management

The ACM Conference on Information and Knowledge Management (CIKM, pronounced) is an annual computer science research conference dedicated to information management (IM) and knowledge management (KM).

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Controlled vocabulary

Controlled vocabularies provide a way to organize knowledge for subsequent retrieval.

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Cross-language information retrieval

Cross-language information retrieval (CLIR) is a subfield of information retrieval dealing with retrieving information written in a language different from the language of the user's query.

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Cyril Cleverdon

Cyril Cleverdon (9 September 1914 – 4 December 1997) was a British librarian and computer scientist who is best known for his work on the evaluation of information retrieval systems.

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Data mining

Data mining is the process of discovering patterns in large data sets involving methods at the intersection of machine learning, statistics, and database systems.

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A database is an organized collection of data, stored and accessed electronically.

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Desk Set

Desk Set (released as His Other Woman in the UK) is a 1957 American romantic comedy film directed by Walter Lang and starring Spencer Tracy and Katharine Hepburn.

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Dimensionality reduction

In statistics, machine learning, and information theory, dimensionality reduction or dimension reduction is the process of reducing the number of random variables under consideration by obtaining a set of principal variables.

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Divergence-from-randomness model

In the field of information retrieval, divergence from randomness, one of the very first models, is one type of probabilistic model.

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Don R. Swanson

Don R. Swanson (October 10, 1924 – November 18, 2012) was an American information scientist, most known for his work in literature-based discovery in the biomedical domain.

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Emanuel Goldberg

Emanuel Goldberg (עמנואל גולדברג; עמנואל גאָלדבערג; Эмануэль Гольдберг) (born: 31 August 1881; died: 13 September 1970) was an Israeli physicist and inventor.

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Eugene Garfield

Eugene Eli Garfield (September 16, 1925 – February 26, 2017) was an American linguist and businessman, one of the founders of bibliometrics and scientometrics.

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European Conference on Information Retrieval

The European Conference on Information Retrieval (ECIR) is the main European research conference for the presentation of new results in the field of information retrieval (IR).

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European Summer School in Information Retrieval

The European Summer School in Information Retrieval (ESSIR) is a scientific event founded in 1990, which starts off a series of Summer Schools to provide high quality teaching of information retrieval on advanced topics.

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Extended Boolean model

The Extended Boolean model was described in a Communications of the ACM article appearing in 1983, by Gerard Salton, Edward A. Fox, and Harry Wu.

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Frederick Wilfrid Lancaster

Frederick Wilfrid ("Wilf") Lancaster (September 4, 1933 – August 25, 2013) was a British-American information scientist.

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Full-text search

In text retrieval, full-text search refers to techniques for searching a single computer-stored document or a collection in a full text database.

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Fuzzy retrieval

Fuzzy retrieval techniques are based on the Extended Boolean model and the Fuzzy set theory.

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Generalized vector space model

The Generalized vector space model is a generalization of the vector space model used in information retrieval.

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Gerard Salton

Gerard A. "Gerry" Salton (8 March 1927 in Nuremberg – 28 August 1995), was a Professor of Computer Science at Cornell University.

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Gerard Salton Award

The Gerard Salton Award is presented by the Association for Computing Machinery (ACM) Special Interest Group on Information Retrieval (SIGIR) every three years to an individual who has made "significant, sustained and continuing contributions to research in information retrieval".

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Ground truth

Ground truth is a term used in various fields to refer to information provided by direct observation (i.e. empirical evidence) as opposed to information provided by inference.

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Hans Peter Luhn

Hans Peter Luhn (July 1, 1896 – August 19, 1964) was a researcher in the field of computer science, and, Library & Information Science for IBM, and creator of the Luhn algorithm, KWIC (Key Words In Context) indexing, and Selective dissemination of information ("SDI").

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Herman Hollerith

Herman Hollerith (February 29, 1860 – November 17, 1929) was an American inventor who developed an electromechanical punched card tabulator to assist in summarizing information and, later, accounting.

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Human–computer information retrieval

Human-computer information retrieval (HCIR) is the study and engineering of information retrieval techniques that bring human intelligence into the search process.

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Hypertext is text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access, or where text can be revealed progressively at multiple levels of detail (also called StretchText).

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Independence (mathematical logic)

In mathematical logic, independence refers to the unprovability of a sentence from other sentences.

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Information extraction

Information extraction (IE) is the task of automatically extracting structured information from unstructured and/or semi-structured machine-readable documents.

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Information overload

Information overload (also known as infobesity or infoxication) is a term used to describe the difficulty of understanding an issue and effectively making decisions when one has too much information about that issue.

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Information retrieval applications

Areas where information retrieval techniques are employed include (the entries are in alphabetical order within each category).

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Information Retrieval Facility

The Information Retrieval Facility (IRF), founded 2006 and located in Vienna, Austria, was a research platform for networking and collaboration for professionals in the field of information retrieval.

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Information system

An information system (IS) is an organized system for the collection, organization, storage and communication of information.

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J. C. R. Licklider

Joseph Carl Robnett Licklider (March 11, 1915 – June 26, 1990), known simply as J. C. R. or "Lick", was an American psychologistMiller, G. A.

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Jacquard loom

The Jacquard machine is a device fitted to a power loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé.

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Joseph Marie Jacquard

Joseph Marie Charles dit (called or nicknamed) Jacquard (7 July 1752 – 7 August 1834), was a French weaver and merchant.

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Journal of the Association for Information Science and Technology

The Journal of the Association for Information Science and Technology (JAIST) is a peer-reviewed academic journal of information science published by Wiley-Blackwell on behalf of the Association for Information Science and Technology.

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Karen Spärck Jones

Karen Spärck Jones FBA (26 August 1935 – 4 April 2007) was a British computer scientist who was responsible for the concept of inverse document frequency, a technology that underlies most modern search engines.

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A keypunch is a device for precisely punching holes into stiff paper cards at specific locations as determined by keys struck by a human operator.

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Language model

A statistical language model is a probability distribution over sequences of words.

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Latent Dirichlet allocation

In natural language processing, latent Dirichlet allocation (LDA) is a generative statistical model that allows sets of observations to be explained by unobserved groups that explain why some parts of the data are similar.

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Latent semantic analysis

Latent semantic analysis (LSA) is a technique in natural language processing, in particular distributional semantics, of analyzing relationships between a set of documents and the terms they contain by producing a set of concepts related to the documents and terms.

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Learning to rank

Learning to rank.

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Massachusetts Institute of Technology

The Massachusetts Institute of Technology (MIT) is a private research university located in Cambridge, Massachusetts, United States.

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MEDLINE (Medical Literature Analysis and Retrieval System Online, or MEDLARS Online) is a bibliographic database of life sciences and biomedical information.

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Melvin Earl Maron

Melvin Earl "Bill" Maron (Jan 23, 1924 - September 28, 2016) was an American computer scientist and emeritis professor of University of California, Berkeley.

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Memory is the faculty of the mind by which information is encoded, stored, and retrieved.

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Metadata is "data that provides information about other data".

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Mind map

A mind map is a diagram used to visually organize information.

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Multimedia information retrieval

Multimedia information retrieval (MMIR or MIR) is a research discipline of computer science that aims at extracting semantic information from multimedia data sources.

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National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.

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Nearest centroid classifier

In machine learning, a nearest centroid classifier or nearest prototype classifier is a classification model that assigns to observations the label of the class of training samples whose mean (centroid) is closest to the observation.

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Nicholas J. Belkin

Nicholas J. Belkin is a professor at the School of Communication and Information at Rutgers University.

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Nick Jardine

Nicholas Jardine FBA (born 4 September 1943) is a British mathematician, philosopher of science and its history, historian of astronomy and natural history, and amateur mycologist.

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Okapi BM25

In information retrieval, Okapi BM25 (BM stands for Best Matching) is a ranking function used by search engines to rank matching documents according to their relevance to a given search query.

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In mathematics, orthogonality is the generalization of the notion of perpendicularity to the linear algebra of bilinear forms.

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Personal information management

Personal information management (PIM) is the activities people perform in order to acquire, organize, maintain, retrieve and use personal information items such as documents (paper-based and digital), web pages and email messages for everyday use to complete tasks (work-related or not) and fulfill a person's various roles (as parent, employee, friend, member of community, etc.). More simply, PIM is the art of getting things done in our lives through information. Practically, PIM is concerned with how people organize and maintain personal information collections, and methods that can help people in doing so.

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Precision and recall

In pattern recognition, information retrieval and binary classification, precision (also called positive predictive value) is the fraction of relevant instances among the retrieved instances, while recall (also known as sensitivity) is the fraction of relevant instances that have been retrieved over the total amount of relevant instances.

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Probabilistic relevance model

The probabilistic relevance model was devised by Robertson and Jones as a framework for probabilistic models to come.

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Punched card

A punched card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions.

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Relevance (information retrieval)

In information science and information retrieval, relevance denotes how well a retrieved document or set of documents meets the information need of the user.

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Relevance feedback

Relevance feedback is a feature of some information retrieval systems.

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Ricardo Baeza-Yates

Ricardo A. Baeza-Yates (born March 21, 1961) is a Chilean-Spanish computer scientist and currently CTO of NTENT, a semantic search company in South California.

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Robert M. Hayes

Robert M. Hayes (born 1926) is Professor Emeritus and former dean of the Graduate School of Library and Information Science (1974-1989), now the Graduate School of Education and Information Studies, at the University of California, Los Angeles (UCLA).

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Robert R. Korfhage

Robert Roy Korfhage (December 2, 1930 – November 20, 1998) was an American computer scientist, famous for his contributions to information retrieval and several textbooks.

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Scalability is the capability of a system, network, or process to handle a growing amount of work, or its potential to be enlarged to accommodate that growth.

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Search engine indexing

Search engine indexing collects, parses, and stores data to facilitate fast and accurate information retrieval.

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Set (mathematics)

In mathematics, a set is a collection of distinct objects, considered as an object in its own right.

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SMART Information Retrieval System

The SMART (System for the Mechanical Analysis and Retrieval of Text) Information Retrieval System is an information retrieval system developed at Cornell University in the 1960s.

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Social information seeking

Social information seeking (SIS) is a field of research that involves studying situations, motivations, and methods for people seeking and sharing information in participatory online social sites, such as Yahoo! Answers, Answerbag, WikiAnswers and Twitter as well as building systems for supporting such activities.

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Special Interest Group on Information Retrieval

SIGIR is the Association for Computing Machinery's Special Interest Group on Information Retrieval.

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Standard Boolean model

The Boolean model of information retrieval (BIR) is a classical information retrieval (IR) model and, at the same time, the first and most-adopted one.

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Subject indexing

Subject indexing is the act of describing or classifying a document by index terms or other symbols in order to indicate what the document is about, to summarize its content or to increase its findability.

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Tabulating machine

The tabulating machine was an electromechanical machine designed to assist in summarizing information stored on punched cards.

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Ted Nelson

Theodor Holm "Ted" Nelson (born June 17, 1937) is an American pioneer of information technology, philosopher, and sociologist.

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Temporal information retrieval

Temporal information retrieval (T-IR) is an emerging area of research related to the field of information retrieval (IR) and a considerable number of sub-areas, positioning itself, as an important dimension in the context of the user information needs.

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Text corpus

In linguistics, a corpus (plural corpora) or text corpus is a large and structured set of texts (nowadays usually electronically stored and processed).

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Text Retrieval Conference

The Text REtrieval Conference (TREC) is an ongoing series of workshops focusing on a list of different information retrieval (IR) research areas, or tracks. It is co-sponsored by the National Institute of Standards and Technology (NIST) and the Intelligence Advanced Research Projects Activity (part of the office of the Director of National Intelligence), and began in 1992 as part of the TIPSTER Text program.

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In information retrieval, tf–idf or TFIDF, short for term frequency–inverse document frequency, is a numerical statistic that is intended to reflect how important a word is to a document in a collection or corpus.

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The Atlantic

The Atlantic is an American magazine and multi-platform publisher, founded in 1857 as The Atlantic Monthly in Boston, Massachusetts.

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The Web Conference

The Web Conference (formerly known as International World Wide Web Conference, abbreviated as WWW) is a yearly international academic conference on the topic of the future direction of the World Wide Web.

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Tim Berners-Lee

Sir Timothy John Berners-Lee (born 8 June 1955), also known as TimBL, is an English engineer and computer scientist, best known as the inventor of the World Wide Web.

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Tony Kent Strix award

The UKeiG Strix award is an annual award for outstanding contributions to the field of information retrieval and is presented in memory of Dr Tony Kent, a past Fellow of the Institute of Information Scientists (IIS), who died in 1997.

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Topic-based vector space model

The Topic-based Vector Space Model (TVSM) (literature) extends the vector space model of information retrieval by removing the constraint that the term-vectors be orthogonal.

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Uncertain inference

Uncertain inference was first described by C. J. van Rijsbergen as a way to formally define a query and document relationship in Information retrieval.

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UNIVAC (Universal Automatic Computer) is a line of electronic digital stored-program computers starting with the products of the Eckert–Mauchly Computer Corporation.

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Vannevar Bush

Vannevar Bush (March 11, 1890 – June 28, 1974) was an American engineer, inventor and science administrator, who during World War II headed the U.S. Office of Scientific Research and Development (OSRD), through which almost all wartime military R&D was carried out, including initiation and early administration of the Manhattan Project.

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Vector space model

Vector space model or term vector model is an algebraic model for representing text documents (and any objects, in general) as vectors of identifiers, such as, for example, index terms.

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Visualization (graphics)

Visualization or visualisation (see spelling differences) is any technique for creating images, diagrams, or animations to communicate a message.

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Web search engine

A web search engine is a software system that is designed to search for information on the World Wide Web.

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Well-posed problem

The mathematical term well-posed problem stems from a definition given by Jacques Hadamard.

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World Wide Web

The World Wide Web (abbreviated WWW or the Web) is an information space where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and accessible via the Internet.

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XML retrieval

XML retrieval, or XML information retrieval, is the content-based retrieval of documents structured with XML (eXtensible Markup Language).

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1890 United States Census

The Eleventh United States Census was taken beginning June 2, 1890.

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IR evaluation, Information Retrieval, Information Retrieval System, Information retreival, Information retrieval evaluation, Information retrieval system, Information storage and retrieval systems, Query (databases), Query performance prediction.


[1] https://en.wikipedia.org/wiki/Information_retrieval

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