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Information warfare
Information warfare (IW) is the use and management of information to gain an advantage over an adversary, through offensive and defensive operations in peace and war.
Information-theoretic exploration
Information-theoretic exploration is a strategy for autonomous robot exploration in which the robot chooses actions by maximizing expected information gain, typically mutual information between future sensor measurements and a probabilistic map.
Information-theoretic security
Information-theoretic security, also called perfect secrecy, is a property of cryptographic schemes whose security holds even against adversaries with unlimited computing power, formalized by Claude Shannon in 1949 and exemplified by the one-time pad.
Informed consent
Informed consent: the ethical and legal process by which patients or research participants authorize care or study participation after disclosure, understanding, and voluntary agreement; rooted in cases from Slater (1767) to Montgomery (2015) and codes from Nuremberg to Belmont.
InforMed Data Systems Inc.
InforMed Data Systems Inc., doing business as One Drop, is a New York-based digital health company founded by Jeff Dachis in 2015 that built a diabetes-management platform.
Informer (song)
"Informer" is a 1993 reggae-rap song by Irish-Canadian artist Snow; it spent seven weeks at number one on the Billboard Hot 100, the first dancehall record to do so.
Informix
Informix is a relational and object-relational database management system, developed from 1980 by Informix Corporation and acquired by IBM in 2001, now used for transaction processing, time series, and spatial workloads.
Infoshop
Infoshop: a volunteer-run, non-hierarchical anarchist social space combining a radical bookstore, zine archive, meeting hall, library, and event venue. Originated in Europe, especially West German squats; grew rapidly in the US after the 1991 Gulf War; examples include 56a Infoshop, Long Haul, and the Beehive.
Infostealer
An infostealer is a type of malware that infiltrates a computer to quietly collect sensitive data, especially browser-saved passwords, cookies, and credit card details, sold on underground marketplaces.
Infosys
Infosys, also known as Infosys Limited, is an Indian IT services and consulting company founded in Bangalore in 1981 by N. R. Narayana Murthy and six colleagues.
InfoWars (The Onion)
InfoWars (The Onion), also known as Real InfoWars, is a satirical parody of Alex Jones's Infowars, which launched in 2026 and committed funds to the Sandy Hook families.
Infra (video game)
INFRA is a 2016 first-person puzzle adventure by Loiste Interactive on the Source engine, casting the player as a structural analyst in the decaying city of Stalburg; non-violent, 15-35 hours, Very Positive on Steam.
Infracapital Partners
Infracapital Partners is a European infrastructure equity manager founded in 2001 by Martin Lennon and Ed Clarke, part of M&G plc, managing around £6bn in assets.
Infraestructura Energética Nova
Infraestructura Energética Nova, or IEnova, is a Mexican energy infrastructure company operating natural gas pipelines, LNG terminals, storage, and power generation, and a subsidiary of Sempra since 2021.
Infrageneric classification of Alsophila
Infrageneric classification of Alsophila, a scaly tree fern genus (Cyatheaceae) named by Robert Brown in 1810; covers Tryon's eight genera, Korall's four clades, and the Gymnosphaera split.
Infrarealism
Infrarealism (Spanish: Infrarrealismo) is a Mexican countercultural poetry movement founded in Mexico City in 1975 and 1976 by Roberto Bolaño and Mario Santiago Papasquiaro, who opposed the literary establishment of Octavio Paz.
Infrared
Infrared, also called infrared radiation or infrared light, is electromagnetic radiation beyond visible red, discovered by William Herschel in 1800 and used for thermal imaging.
Infrared and thermal testing
Infrared and thermal testing, commonly called infrared thermography (IRT), is a nondestructive evaluation method that locates defects like delaminations and voids from surface temperature variations captured by an infrared camera.
Infrared Astronomical Satellite
The Infrared Astronomical Satellite (IRAS) was the first space telescope to survey the entire sky in infrared light, a 1983 joint project of the United States, the Netherlands, and the United Kingdom.
Infrared blaster
An infrared blaster (IR blaster) is an infrared transmitter built into a device, usually a smartphone, that lets it control TVs and other appliances like a remote.
Infrared emitter
An infrared emitter is an optoelectronic source that converts electrical energy into infrared radiation, most commonly an IR LED emitting around 850 or 940 nm for remote controls and sensing.
Infrared heater
An infrared heater, also called a heat lamp, is a heating device that warms people and objects directly by infrared radiation instead of warming the air first.
Infrared homing
Infrared homing, also called heat seeking, is a passive missile guidance method in which the weapon steers toward the infrared radiation of its target, usually a hot aircraft.
Infrared ion spectroscopy
Infrared ion spectroscopy is a family of gas-phase methods that measures infrared absorption of mass-selected ions indirectly, mainly to distinguish isomers that mass spectrometry alone cannot resolve.
Infrared microscopy
Infrared microscopy combines an infrared spectrometer with a microscope to record absorption spectra at many points across a sample, producing false-color chemical images used in tissue, pharmaceutical, and microplastics analysis.
Infrared microspectroscopy
Infrared microspectroscopy is an analytical technique that combines an infrared spectrometer with a microscope to identify and map chemical components in materials at microscopic resolution, with uses in biomedical science, microplastics research, and forensics.
Infrared multiphoton dissociation
Infrared multiphoton dissociation (IRMPD) is a tandem mass spectrometry method that fragments trapped gas-phase ions by resonant absorption of many infrared photons, introduced in 1979 and also used for vibrational spectroscopy of stored ions.
Infrared nano-imaging of graphene plasmons
Infrared nano-imaging of graphene plasmons is the real-space visualization of plasmons in graphene at nanometer resolution using a sharp AFM tip, first achieved in two 2012 Nature papers.
Infrared photography
Infrared photography is photography made with near-infrared light, roughly 700 to 1400 nanometers, first produced by Robert Williams Wood in 1910; foliage appears white, skies dark, and haze largely disappears.
Infrared reflection absorption spectroscopy
Infrared reflection absorption spectroscopy (IRAS, also RAIRS or IRRAS) is a surface-sensitive vibrational technique that identifies molecules adsorbed on reflective metal surfaces and their bonding geometry.