Robert Vallée, Date of Birth, Place of Birth, Date of Death
TweetRobert Vallée
French mathematician
Date of Birth: 
Place of Birth: Poitiers, Nouvelle-Aquitaine, France
About Robert Vallée
- Robert Vallée (5 October 1922 in Poitiers, France – 1 January 2017, Paris, France) was a French cyberneticist and mathematician.
- He was Professor at the Paris 13 University (University of Paris-Nord) and president of the World Organization of Systems and Cybernetics (WOSC),.At the beginning of the 1950s, Vallée wrote his first publications on what he named "opérateur d'observation" (which means in English "operator of observation").
- The latter, in the simplest case, allows a cybernetic system to observe the state of its environment and itself.
- Thereafter, on the basis of these results, a decisional operator will be able to indicate the action to be taken.
- The two stages of perception and decision are distinguished by "intellectual convenience", but it is interesting to gather them in a unique operator, known as "pragmatic".
- A decision is influenced by the observation of events, but also by past perceptions.
- That means that, in the observation made at a given moment, traces of past observations are also present.
- Eventually, these processes follow one another in a loop.
- Vallée defined the study of this situation with the term "epistemo-praxeology", underlining the existing link between knowledge (episteme), resulting from observation, and action (praxis).
- Regarding the observation problem, Vallée was also interested in information theory. Vallée also nourished private interests in sociological problems as well as in history.
- The first led him to describe a cybernetic creature covering the whole surface of the globe with its communication net (1952), an idea which has also been proposed (under the name of "cybionte", 1975) by Joël de Rosnay.
- He also wrote articles devoted to historical aspects of cybernetics and systems, referring to René Descartes, Louis de Broglie, and Norbert Wiener.
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