In physics, an observable is a physical property or physical quantity that can be measured. In classical mechanics, an observable is a real-valued "function"...

The observable universe is a spherical region of the universe consisting of all matter that can be observed from Earth; the electromagnetic radiation from...

In mathematics, in the representation theory of algebraic groups, an observable subgroup is an algebraic subgroup of a linear algebraic group whose every...

Observability is a measure of how well internal states of a system can be inferred from knowledge of its external outputs. In control theory, the observability...

In software engineering, more specifically in distributed computing, observability is the ability to collect data about programs' execution, modules' internal...

partially observable system is one in which the entire state of the system is not fully visible to an external sensor. In a partially observable system the...

{y}}(t)={\boldsymbol {Cx}}(t)+{\boldsymbol {Du}}(t)\end{array}}} is observable, where A {\displaystyle {\boldsymbol {A}}} , B {\displaystyle {\boldsymbol...

Stealth technology, also termed low observable technology (LO technology), is a sub-discipline of military tactics and passive and active electronic countermeasures...

A partially observable Markov decision process (POMDP) is a generalization of a Markov decision process (MDP). A POMDP models an agent decision process...

can only be inferred indirectly through a mathematical model from other observable variables that can be directly observed or measured. Such latent variable...

In quantum mechanics, a complete set of commuting observables (CSCO) is a set of commuting operators whose common eigenvectors can be used as a basis...

A phenomenon (pl. phenomena), sometimes spelled phaenomenon, is an observable event. The term came into its modern philosophical usage through Immanuel...

programming languages. ReactiveX is an API for asynchronous programming with observable streams. Asynchronous programming allows programmers to call functions...

different situations, depending on whether every sequential state is observable or not, and whether the system is to be adjusted on the basis of observations...

metaphysics. A Ramsey sentence aims at rendering propositions containing non-observable theoretical terms (terms employed by a theoretical language) clear by...

sphere, causal sphere and sphere of causality is a spherical region of the observable universe surrounding an observer beyond which objects recede from that...

variables. Observability is a measure for how well internal states of a system can be inferred by knowledge of its external outputs. The observability and controllability...

Inc. is an American multinational technology company that provides an observability platform. Their software is used to monitor, analyze, and optimize application...

radiation from stars other than the Sun, observable from Earth at night, although a component of starlight is observable from Earth during daytime. Sunlight...

James A. Yorke (born August 3, 1941) is a Distinguished University Research Professor of Mathematics and Physics and former chair of the Mathematics Department...

systems by rephrasing the gravitational waves in terms of the manifestly observable Riemann curvature tensor. At the time, Pirani's work was overshadowed...

The no-observed-adverse-effect level (NOAEL) denotes the level of exposure of an organism, found by experiment or observation, at which there is no biologically...

existence, nature, properties, qualities or relations are not directly observable by humans. In philosophy of science, typical examples of "unobservables"...

theories. For this role, evidence must be public and uncontroversial, like observable physical objects or events and unlike private mental states, so that evidence...

observational evidence (WMAP, BOOMERanG, and Planck for example) imply that the observable universe is spatially flat to within a 0.4% margin of error of the curvature...

the Milky Way, which is one of a few hundred billion galaxies in the observable universe. Many of the stars in a galaxy have planets. At the largest scale...

In high energy physics, event shapes observables are quantities used to characterize the geometry of the outcome of a collision between high energy particles...

the distance from which one could possibly retrieve information. This observable constraint is due to various properties of general relativity, the expanding...

Datadog, Inc. is an American company that provides an observability service for cloud-scale applications, providing monitoring of servers, databases,...

The Virgo Supercluster is one of about 10 million superclusters in the observable universe, with the main body of the supercluster, the Virgo Strand, connecting...