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Robert Vallée

Robert Vallée is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Robert Vallée rather than just read about it. In short: 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).

Robert Vallée — main illustration
Robert Vallée — illustration

Key takeaways

  • Robert Vallée belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Robert Vallée to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Robert Vallée from memory before moving on to harder problems.

Reference excerpt

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 into 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.

Biography Vallée was born on 5 October 1922, in Poitiers, (France), as the son of professors in history. In 1969 he married the editor and translator Nicole Georges-Lévy. With his wife, Robert Vallée contributed to a translation, in French, of Norbert Wiener's book, Cybernetics: Or Control and Communication in the Animal and the Machine. Towards the end of the 1920s and during the 1930s, Vallée attended the college of Angoulême where, in 1940, he obtained a bachelor's degree in Latin-Greek, mathematics, and philosophy. Between 1944 and 1946, he was a student at the École Polytechnique in Paris. During the summer of 1954, he took part in the "Foreign Students Summer Project" of the Massachusetts Institute of Technology (with Norbert Wiener and Armand Siegel). In 1961 he became a Doctor of Science in mathematics with a thesis on an extension of the general relativity of Kaluza-Klein, under the direction of André Lichnerowicz (University of Paris). During his career, Vallée occupied several positions. Between 1956 and 1958, he was Associate-Director of the Institute Blaise Pascal in Paris. From 1961 to 1971, he was university lecturer in mathematics at the École Polytechnique and at the University of Franche-Comté (1962–1971) where he subsequently became Professor. Between 1971 and 1987 he was a Professor at the University of Paris-Nord where he was also dean of the Faculty of Economics from 1973 to 1975 and president of the Department of Economical mathematics from 1975 to 1987. In 1987, the University of Paris-Nord conferred on him the title of professor emeritus. Vallée also gave a doctoral course on dynamic systems at the University of Paris 1 Pantheon-Sorbonne between 1975 and 1987. Vallée was active within several associations and organizations, in particular:

Founder of the Cercle d’Etudes Cybernétiques (President Louis de Broglie), 1950. Member of the Council of the Société Mathématique de France, 1964–1967. General Director of the Institut de Sciences Mathématiques et Economiques Appliquées (President François Perroux), 1980–1982. President of the Collège de Systémique de l'Association Française pour la Cybernétique Economique et Technique (AFCET), 1981–1984. Member of the council of the French Association of Theoretical Biology, 1984–1988. Representative of the AFCET, (later CET), at the International Federation for Systems Research (IFSR), 1986. Participant in several Fuschl Conversations (International Systems Institute and IFSR), 1986–1996. General Director (1987) then President (2003) of the World Organization of Systems and Cybernetics (WOSC, founder J. Rose), 1987. Member of the council of the International Association of Cybernetics, 1987–2000. Member of the council of the Association Française de Science des Systèmes Cybernétiques, Cognitifs, et Techniques (AFSCET), 1999. He also was a member of the International Society for the Systems Sciences, the American Society for Cybernetics, the Tutmonda Asocio pri Kibernetiko, Informatiko kaj Sistemiko (TAKIS), and of the international league of scientists for the use of the French language. In his career several titles were conferred on him:

From 1987 to 1999, Vallée was chief editor of the Revue Internationale de Systémique (AFCET) as well as member of the editorial boards of Kybernetes (official review of the WOSC), Economies et Sociétés (ISMEA), International Journal for Biological Systems, Cybernetics and Human Knowing, Grundlagenstudien aus Kybernetik und Geisteswissenschaft (TAKIS), Robotica, and Res-Systemica (electronic journal of the French Association of Science of Systems (AFSCET) and the European Union of Systemics).

References

Notes (in French) Robert Vallée, Cognition et Système, l'Interdisciplinaire, Lyon-Limonest, 1995. Robert Vallée, 30th Anniversary Cyberprofile, Kybernetes, 32, 3, 2003, pp. 449–453. Robert Vallée. "De la connaissance à l'action, Automates Intelligents, 82" (in French). Retrieved 22 July 2009.

Illustrations

Robert Vallée illustration

Worked examples

Example 1 — a first encounter with Robert Vallée

Start with the simplest possible case. Write down what Robert Vallée claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Robert Vallée before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Robert Vallée ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Robert Vallée

In research
Robert Vallée appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Robert Vallée in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Robert Vallée is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1922 births, 2017 deaths, Academic staff of the University of Paris, so understanding it makes those chapters shorter.
In everyday life
Look for Robert Vallée outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Robert Vallée in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Robert Vallée means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Robert Vallée out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Robert Vallée in simple terms?

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).

Why does Robert Vallée matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Robert Vallée?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Robert Vallée.

Tags

  • 1922 births
  • 2017 deaths
  • Academic staff of the University of Paris
  • Cyberneticists
  • French mathematicians
  • People from Poitiers
  • University of Paris alumni

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