Feedback (disambiguation)

Feedback is what occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.

Feedback may also refer to:

Engineering

 * Feedback control loop, a closed-loop controller
 * Audio feedback, the "howl" sometimes heard in microphone or guitar amplification systems
 * Video feedback, the optical equivalent of audio feedback, caused when a camera films the image it is producing
 * Positive feedback, a feedback system that responds to perturbation in the same direction as the perturbation
 * Negative feedback, a method of attenuation to restore equilibrium
 * Negative-feedback amplifier, an amplifier designed to stabilize a system and improve performance

Human behaviour

 * Corrective feedback, by a parent or teacher to guide a child's learning process
 * Delayed Auditory Feedback, a method of combating stuttering
 * Employee performance appraisal, particularly methods such as 360-degree feedback

Science

 * Biofeedback
 * Climate change feedback, for positive and negative feedbacks associated with climate change
 * Reinforcement learning from human feedback, a machine learning technique that uses human feedback to directly optimize a model

Mathematics

 * Feedback arc set, in graph theory, a method of eliminating directed graphs
 * Feedback vertex set, in computational complexity theory, the feedback vertex set problem is a graph-theoretical NP-complete problem

Comics

 * Feedback (Marvel Comics), a Marvel Comics superhero
 * Feedback (Dark Horse Comics), the winner of Who Wants to be a Superhero? and a Dark Horse Comics superhero

Music

 * "Feedback" (Janet Jackson song), 2008
 * "Feedback" (Kanye West song), 2016
 * Feedback, a 1944 album by Les Paul
 * Feedback (Spirit album), 1972
 * Feedback (EP), a 2004 EP by Rush
 * Feedback (Jurassic 5 album), 2006
 * "Feedback", a song by Covenant from their 1996 album Sequencer
 * Feedback (Derek Webb album), 2010
 * Feedback (band), a Bangladeshi rock band

Other

 * Feedback, a video podcast produced by G4
 * Feedback (radio series), a BBC Radio Four programme in the UK
 * Feedback, an alien character in Ben 10: Omniverse
 * Feedback, a superhero in the Dark Horse Comics
 * Feedback, a design principle in User interface design
 * Feedback loop (email)
 * Causal loop in the context of time travel or the causal structure of spacetime, that is a sequence of events (actions, information, objects, people)
 * Feedback (pork industry), the practice of feeding infected deceased pigs and their manure to breeding pigs
 * Feedback (TV series), a 2023 Polish television series