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Optimal power flow
Optimal power flow (OPF) is the problem of finding the least-cost operating point for an electric power network, choosing generator dispatch while satisfying power flow laws and operating limits.
Optimal Reciprocal Collision Avoidance
Optimal Reciprocal Collision Avoidance (ORCA) is a decentralized collision-avoidance algorithm in which each agent computes collision-free velocities without communication, introduced by van den Berg and colleagues in 2011.
Optimal velocity model
The optimal velocity model is a car-following model of traffic, proposed in 1995, in which each driver adjusts speed to a target velocity set by the distance to the vehicle ahead.
Optimist (dinghy)
Optimist dinghy: small single-handed sprit-rigged pram for children, designed 1947 by Clark Mills in Clearwater, Florida; IODA one-design class sailed in over 120 countries, over 150,000 registered boats, 35 sq ft sail, 35 kg hull.
Optimistic concurrency control
Optimistic concurrency control (OCC) is a transaction-processing technique that runs transactions without locks, checking for conflicts only at commit time and aborting conflicting transactions; it suits low-contention, read-mostly workloads.
Optimization problem
An optimization problem is the mathematical task of finding the best value of an objective function over a domain called the search space, whose valid points are feasible solutions.
Optimized Link State Routing protocol
The Optimized Link State Routing (OLSR) protocol is a proactive link-state routing protocol for mobile ad hoc networks, standardized by the IETF as RFC 3626 in 2003.
Optimizing compiler
An optimizing compiler is a compiler that produces machine code chosen to run faster, use less memory, or consume less energy, while preserving the program's observable behavior.
Optimum Coal Mine
Optimum Coal Mine is a large opencast and underground thermal coal mine at Pullenshope in Mpumalanga, South Africa, opened in 1971 to supply Hendrina Power Station.
Optimum combining
Optimum combining is a wireless receive-diversity technique that weights and sums multiple antenna signals to maximize output SINR, analyzed for cellular mobile radio by Jack Winters in 1984.
Optimum Communications
Optimum Communications, formerly Altice USA, is an American broadband and video company headquartered in Long Island City, New York, serving about 4.2 million customers across 21 states.
Optimus (robot)
Optimus, also called Tesla Bot, is a general-purpose bipedal humanoid robot Tesla announced at AI Day in 2021, entering first-generation production at its Fremont factory in 2026.
Optina Pustyn
Optina Pustyn (Оптина пустынь) is a Russian Orthodox male monastery near Kozelsk, Kaluga Oblast, known in the 19th century for its elders and visitors like Dostoevsky and Tolstoy.
Option key
The Option key is a modifier key on Apple keyboards, introduced in January 1983 with the Apple Lisa, that types special characters and modifies shortcuts in macOS.
Option-Critic architecture
The Option-Critic architecture is a hierarchical reinforcement learning method by Pierre-Luc Bacon, Jean Harb, and Doina Precup of McGill University, introduced at AAAI-17 in 2017.
Options framework
The options framework is a reinforcement learning formalism, introduced by Sutton, Precup, and Singh in 1999, that extends an agent's actions with temporally extended skills called options.
Opto 22
Opto 22 is a privately held American manufacturer of industrial automation hardware and software, founded by engineer Bob Engman in 1974 in Huntington Beach, California, and headquartered in Temecula.
Opto-isolator
An opto-isolator, also called an optocoupler or photocoupler, is a semiconductor device that transfers electrical signals between circuits through light using an LED and photodetector.
Optofluidics
Optofluidics, a field combining microfluidics and photonics named around 2002, manipulates tiny fluid volumes and light at chip scale to build tunable optics and miniature bioanalytical sensing devices.
Optomec
Optomec is a privately held American additive manufacturing company based in Albuquerque, New Mexico, whose Aerosol Jet systems print electronics and LENS printers build and repair metal parts.
Optomechanical quantum transducer
An optomechanical quantum transducer is a device that coherently converts quantum states of light between microwave and optical frequency domains using a mechanical resonator, linking superconducting quantum processors through optical fiber.
Optus
Optus, formally Singtel Optus Pty Limited, is an Australian telecommunications company offering mobile, broadband, satellite, and subscription television services, wholly owned by Singtel since 2001.
Oracle Alloy
Oracle Alloy is a cloud platform announced by Oracle in 2022 that lets service providers, integrators, and other organizations resell Oracle Cloud Infrastructure services under their own brand.
Oracle America, Inc. v. Google LLC
Oracle America, Inc. v. Google LLC was a copyright lawsuit over Google's use of Java API code in Android, decided for Google by the Supreme Court in 2021.
Oracle Applications
Oracle Applications, also known as Oracle Apps, is Oracle Corporation's family of business software spanning ERP, supply chain, human capital management, and customer experience, including Fusion Cloud and NetSuite.
Oracle Autonomous Data Warehouse
Oracle Autonomous Data Warehouse (ADW) is Oracle's self-managing cloud data warehouse, launched March 2018 on Oracle Database 18c, offering automated patching, tuning, and scaling, and now continuing as Autonomous AI Lakehouse.
Oracle Cloud Infrastructure (AI)
Oracle Cloud Infrastructure (OCI) AI is Oracle's portfolio of AI compute offerings, centered on GPU superclusters and a managed generative AI service that reached general availability in January 2024.
Oracle Database
Oracle Database, also known as Oracle RDBMS, is a commercial multi-model relational database management system sold by Oracle Corporation, first released in 1979 as the first commercial SQL-based RDBMS.
Oracle E-Business Suite
Oracle E-Business Suite (EBS) is a suite of integrated business applications from Oracle covering ERP, CRM, financials, and supply chain, first shipped in 2000 as Release 11i.
Oracle Fusion Cloud ERP
Oracle Fusion Cloud ERP is Oracle's cloud-native ERP suite running as software as a service on Oracle Cloud Infrastructure, covering finance, procurement, supply chain, and HR on a single data model.