MAT200A 02W |
Courses:MAT200A 02W:Report:Feedback in Arts
schedule MAT200A 02W Report by: Woon Seung Yeo Feedback in Arts ... concept, classification, history, and examples | |
Introduction |
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definition |
1. the return to the input of a part of the output of a machine, system, or process (as for producing changes in an electronic circuit that improve performance or in an automatic control device that provide self-corrective action) 2. a the partial reversion of the effects of a process to its source or to a preceding stage b the transmission of evaluative or corrective information to the original or controlling source about an action, event, or process; also : the information so transmitted - Merriam-Webster's Collegiate Dictionary 1. the return of a portion of the output, or processed portion of the output, of a (usually active) device to the input 2. information returned as a response to an originating source - Federal Standard 1037C, Institute for Telecommunication Sciences |
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flow chart |
general concept control system signal flow (negative feedback) |
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Classification: points of view |
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closed-loop vs. open-loop |
open-loop control offers some advantages
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positive vs. negative |
* If the feedback is regenerative (additive), it is called "positive feedback," which increases gain and distortion, and decreases linearity and stability. * If the feedback is degenerative (subtractive), it is called "negative feedback," which reduces the gain and distortion, and increases linearity and stability. positive and negative feedback biology cartoons |
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feedback vs. feedforward |
feedback and feedforward control feedforward for faster control response video feedforward |
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by whom? |
by machine: temperature control system by human: driving between human: conversation |
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History |
a brief history of feedback control 1. the preoccupation of the Greeks and Arabs with keeping accurate track of time 2. the Industrial Revolution in Europe 3. the beginning of mass communication and the First and Second World Wars 4. the beginning of the space/computer age. |
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Engineering applications |
everywhere!
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Feedback in arts |
more focus on "interaction" ... "participation"
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Nam June Paik |
participation TV random access something pacific |
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Dan Graham |
opposing mirrors and video monitors on time delay
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Paul Garrin |
white devil border patrol |
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Simon Penny |
sympathetic sentience petit mal |
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Golan Levin |
the alphabet synthesis machine audiovisual environment suite |
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Christa Sommerer & Laurent Mignonneau |
a-volve (more...)
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Toshio Iwai |
piano - as image media resonance of 4 music plays images X images play music composition on the table |
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George Legrady |
sensing/speaking space
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Survival Research Lab. |
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other links |
ARS electronica - interactive art webring - experimental interactive arts |
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Future... |
larger-scale feedback system using network application of higher-level control theory |
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