All articles starting with M

Multi-objective Bayesian optimization

Multi-objective Bayesian optimization (MOBO) is a sample-efficient method for optimizing several expensive, competing objectives, returning an approximation of the Pareto front rather than a single optimum.

Multi-objective evolutionary algorithm

A multi-objective evolutionary algorithm (MOEA) is an optimization method that returns a Pareto set approximation, a set of mutually nondominated solutions, rather than a single best point.

Multi-objective evolutionary optimization

Multi-objective evolutionary optimization uses population-based evolutionary algorithms to optimize two or more conflicting objectives at once, seeking trade-off solutions that converge to and evenly cover the Pareto front.

Multi-objective linear programming

Multi-objective linear programming (MOLP) is an optimization method that solves linear programs with several objective functions at once, replacing optimality with efficiency and finding nondominated points.

Multi-objective optimization

Multi-objective optimization, also known as Pareto optimization, deals with problems having two or more conflicting objectives optimized simultaneously; the result is a set of trade-off Pareto-optimal solutions.

Multi-objective particle swarm optimization

Multi-objective particle swarm optimization (MOPSO) is a swarm intelligence method that extends particle swarm optimization to conflicting objectives, using an archive of non-dominated solutions to approximate the Pareto front.

Multi-part episode

A multi-part episode is a single TV story split across two or more consecutive installments, also called a two-parter, used when a plot is too big for one time slot and typically ending parts on cliffhangers.

Multi-party system

A multi-party system, or multiparty democracy, is a political arrangement in which more than two parties compete for power; proportional representation tends to produce it, and coalitions usually govern.

Multi-physics coupling

Multi-physics coupling is the joint simulation of interacting thermal, hydraulic, mechanical, and chemical processes in geologic media, applied to nuclear waste disposal, geothermal energy, and CO2 storage.

Multi-product terpene synthases

Multi-product terpene synthases are enzymes that convert one prenyl diphosphate substrate into many terpene products; grand fir γ-humulene synthase holds the record with 52 sesquiterpenes from a single substrate.

Multi-proxy analysis

Multi-proxy analysis applies several independent analytical techniques, or proxies, to the same sample, object, or sediment core, so dating, provenance, and paleoenvironmental findings can be cross-checked.

Multi-Purpose Detector

The Multi-Purpose Detector (MPD) is one of two heavy-ion collision experiments at the NICA collider at the Joint Institute for Nuclear Research in Dubna, Russia.

Multi-purpose End-to-end Robotic Operation Network

The Multi-purpose End-to-end Robotic Operation Network (METERON) is a European Space Agency project testing how astronauts could control robots on the Moon or Mars from orbit.

Multi-query attention

Multi-query attention (MQA) is a variant of Transformer attention in which all heads share one key and value head, proposed by Noam Shazeer at Google in 2019.

Multi-Radar Multi-Sensor

Multi-Radar Multi-Sensor (MRMS) is an automated National Severe Storms Laboratory system that integrates radar, satellite, lightning, and model data into three-dimensional weather mosaics used for severe weather warnings.

Multi-residue method

A multi-residue method (MRM) is an analytical chemistry procedure that detects and quantifies many pesticide residues in a single analysis, typically using chromatography with mass spectrometry and QuEChERS extraction.

Multi-robot area coverage

Multi-robot area coverage is the problem of planning paths for a robot team so that together they cover every point of a target area while avoiding obstacles.

Multi-robot SLAM

Multi-robot SLAM, also called Collaborative Simultaneous Localization and Mapping (C-SLAM), is the problem of robot teams jointly localizing and building a shared map of unknown, often GPS-denied environments.

Multi-robot task allocation

Multi-robot task allocation (MRTA) is the problem of deciding which robots should execute which tasks so a fleet of autonomous robots coordinates efficiently, from warehouses to search and rescue.

Multi-robot vehicle routing

Multi-robot vehicle routing is the problem of computing routes for teams of mobile robots that visit distributed locations for delivery, pickup, or monitoring, related to the vehicle routing problem and NP-hard in practice.

Multi-role strike ship

The multi-role strike ship (MRSS), originally the Multi-Role Support Ship, was a planned Royal Navy amphibious warship class announced in 2024 and canceled in 2026 before construction.

Multi-scale entanglement renormalization ansatz

The multi-scale entanglement renormalization ansatz (MERA) is a tensor network of isometries and disentanglers, introduced by Guifre Vidal, that efficiently represents the logarithmic entanglement of quantum critical systems.

Oct 10, 2026

Multi-sided platform

A multi-sided platform is a business serving two or more customer groups who need each other, such as payment cards, ride-hailing apps, and shopping malls.

Multi-source interference task

The multi-source interference task (MSIT) is a cognitive psychology paradigm combining Stroop, flanker, and Simon conflict in one trial, producing large interference effects and reliable fMRI activation.

Multi-speed Europe

Multi-speed Europe, also two-speed Europe, is a form of differentiated integration in which EU member states integrate at different paces, via instruments such as enhanced cooperation, opt-outs, PESCO, Schengen, and eurozone membership.

Multi-sport event

A multi-sport event is an organized competition, national or international, held over days or weeks in which athletes compete in many sports at a single gathering, on the Olympic model.

Multi-stage fitness test

Multi-stage fitness test (beep test, bleep test, PACER, Léger test, 20mSRT): a 20-metre progressive shuttle run to audio beeps estimating VO2max; validated by Léger and Lambert in 1982, validity r 0.66–0.84.

Multi-stage flash distillation

Multi-stage flash distillation (MSF) is a thermal desalination process in which heated seawater flashes into vapor across low-pressure chambers, condensing as freshwater; dominant in the Arabian Gulf since 1960.

Multi-stage frontier post-training pipelines

A multi-stage frontier post-training pipeline is the ordered sequence of training stages, typically six to ten, that turns a pretrained large language model into an assistant.