Misplaced Pages

Carl Hewitt: Difference between revisions

Article snapshot taken from[REDACTED] with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactively← Previous editNext edit →Content deleted Content addedVisualWikitext
Revision as of 07:03, 20 June 2007 view sourceProf. Hewitt (talk | contribs)79 edits →Selected works: Added as per discussion page. Please contribute to dicussion before deleting.← Previous edit Revision as of 07:08, 20 June 2007 view source Allan McInnes (talk | contribs)Extended confirmed users, Pending changes reviewers4,932 edits →Work on Planner: context + (finally) a ref for the assertion about Planner as an alternative to McCarthy's workNext edit →
Line 11: Line 11:
=== Work on Planner === === Work on Planner ===


Hewitt's work on Planner introduced the notion of the "procedural embedding of knowledge",<ref>Carl Hewitt. ''Procedural Embedding of Knowledge In Planner'' IJCAI. 1971.</ref> which was an alternative to the logical approach to knowledge encoding for ] pioneered by ]{{Fact|date=May 2007}}. A subset of Planner called Micro Planner was implemented by ], ] and ].<ref>Gerry Sussman and Terry Winograd. '''''' AI Memo No, 203, MIT Project MAC, July 1970.</ref> It was used in Winograd's famous ] program, <ref>Terry Winograd. '''''' MIT AI TR-235. January 1971.</ref> and Eugene Charniak's natural language story understanding work.<ref>Marvin Minsky and Seymour Papert. “Progress Report on Artificial Intelligence” MIT AI Memo 252. 1971.</ref> The Planner language was developed as part of Hewitt's doctoral research in MIT's Artificial Intelligence Laboratory. Hewitt's work on Planner introduced the notion of the "procedural embedding of knowledge",<ref>Carl Hewitt. ''Procedural Embedding of Knowledge In Planner'' IJCAI. 1971.</ref> which was an alternative to the logical approach to knowledge encoding for ] pioneered by ].<ref>Philippe Rouchy, , TeamEthno-Online Issue 2, June 2006, 85-100.<ref> A subset of Planner called Micro Planner was implemented by ], ] and ].<ref>Gerry Sussman and Terry Winograd. '''''' AI Memo No, 203, MIT Project MAC, July 1970.</ref> It was used in Winograd's famous ] program, <ref>Terry Winograd. '''''' MIT AI TR-235. January 1971.</ref> and Eugene Charniak's natural language story understanding work.<ref>Marvin Minsky and Seymour Papert. “Progress Report on Artificial Intelligence” MIT AI Memo 252. 1971.</ref>


=== Work on the Actor Model === === Work on the Actor Model ===

Revision as of 07:08, 20 June 2007


Carl E. Hewitt is an Associate Professor (Emeritus) in the Electrical Engineering and Computer Science department at the Massachusetts Institute of Technology (MIT). Hewitt obtained his PhD in mathematics at MIT in 1971, under the supervision of Seymour Papert, Marvin Minsky, and Mike Paterson. He is known for his design of Planner , which was the first Artificial Intelligence programming language based on procedural plans that were invoked using pattern-directed invocation from assertions and goals. He is also known for his work on the Actor model of computation, which influenced the development of the Scheme programming language and the π calculus, and served as an inspiration for several other programming languages.

Biography

Work on Planner

The Planner language was developed as part of Hewitt's doctoral research in MIT's Artificial Intelligence Laboratory. Hewitt's work on Planner introduced the notion of the "procedural embedding of knowledge", which was an alternative to the logical approach to knowledge encoding for artificial intelligence pioneered by John McCarthy.Cite error: A <ref> tag is missing the closing </ref> (see the help page). It was used in Winograd's famous SHRDLU program, and Eugene Charniak's natural language story understanding work.

Work on the Actor Model

Hewitt's work on the Actor model of computation has spanned over 30 years, beginning with a 1973 paper authored by Hewitt, Peter Bishop, and Richard Steiger, and including new results on Actor model semantics published as recently as 2006. The Actor model was the original inspiration for Sussman and Steele's work on the Scheme programming language,, and also provided the motivation for the development of a number of languages specifically intended to implement the Actor model, such as SALSA, Caltrop,, and E.

MIT career

Hewitt was inducted into MIT's Quarter Century Club, marking 25 years of employment at MIT, in March of 1996. He retired from the faculty of the MIT Department of Electrical Engineering and Computer Science during the 1999-2000 school year. Among the doctoral students that Hewitt supervised during his time at MIT are Dr. Russell Atkinson, Dr. Gerald Barber, Dr. Peter Bishop, Professor William Clinger, Dr. Peter de Jong, Dr. Irene Greif, Dr. Kenneth Kahn, and Professor Akinori Yonezawa.

Awards

From September 1989 to August 1990, Hewitt was the IBM Chair Visiting Professor in the Department of Computer Science at Keio University in Japan.

Selected works

References

  1. "MIT EECS - Department Faculty and Senior Research Staff". Retrieved 2007-05-29.
  2. Carl Hewitt. PLANNER: A Language for Proving Theorems in Robots IJCAI. 1969.
  3. Filman, Robert (1984). "Actors". Coordinated Computing - Tools and Techniques for Distributed Software. McGraw-Hill. pp. pp. 145. ISBN 0-07-022439-0. Carl Hewitt and his colleagues at M.I.T. are developing the Actor model. {{cite book}}: |pages= has extra text (help); Unknown parameter |coauthors= ignored (|author= suggested) (help); line feed character in |title= at position 25 (help)
  4. Krishnamurthi, Shriram (December 1994). "An Introduction to Scheme". Crossroads. 1 (2).
  5. Milner, Robin (January 1993). "ACM Turing Award Lecture: The Elements of Interaction" (PDF). Communications of the ACM. 36 (1).
  6. ^ Mark S. Miller (2006). "Robust Composition - Towards a Unified Approach to Access Control and Concurrency Control" (PDF). PhD dissertation. Johns Hopkins University. Retrieved 2007-05-26. {{cite journal}}: Cite journal requires |journal= (help); line feed character in |title= at position 21 (help)
  7. Carl Hewitt. Procedural Embedding of Knowledge In Planner IJCAI. 1971.
  8. Terry Winograd. Procedures as a Representation for Data in a Computer Program for Understanding Natural Language MIT AI TR-235. January 1971.
  9. Marvin Minsky and Seymour Papert. “Progress Report on Artificial Intelligence” MIT AI Memo 252. 1971.
  10. Carl Hewitt (1973). "A Universal Modular Actor Formalism for Artificial Intelligence". IJCAI. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  11. Carl Hewitt What is Commitment? Physical, Organizational, and Social COIN@AAMAS. April 27, 2006.
  12. Gerald Sussman and Guy Steele. SCHEME: An Interpreter for Extended Lambda Calculus AI Memo 349, MIT Artificial Intelligence Laboratory, Cambridge, Massachusetts, December 1975. Inspired by ACTORS , we have implemented an interpreter for a LISP-like language, SCHEME...
  13. C. Varela and G. Agha. Programming Dynamically Reconfigurable Open Systems with SALSA. OOPSLA 2001 Intriguing Technology Track. ACM SIGPLAN Notices, 36(12):20-34, December 2001.
  14. Eker, Johan. "An introduction to the Caltrop actor language" (PDF). Retrieved 2007-06-20. {{cite journal}}: Cite journal requires |journal= (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
  15. MIT News Office (April 10, 1996). "Quarter Century Club inducts 73 new members". Retrieved 2007-06-19.
  16. John V. Guttag (2000). "MIT Reports to the President 1999–2000 - Department of Electrical Engineering and Computer Science". Retrieved 2007-06-19.
  17. Ryuichiro Ohyama (1991). "Department of Computer Science-Recent and Current Visiting Professors". Retrieved 2007-06-19.

External links


Template:Persondata

Categories:
Carl Hewitt: Difference between revisions Add topic