Filtering SQL via the principles of pandemonium
Authors: 
John Lusth, Nenad JukicAuthors Info & Claims
John Lusth, Nenad JukicAuthors Info & ClaimsPages 11 - 14
Abstract
In this paper, we re-introduce Pandemonium, an early specification for parallel processing through semiautonomous agents. The biggest advantage of the Pandemonium approach is its simplicity, which is achieved by dividing tasks among many computational units. Using Pandemonium as a metaphor, we design an interpreter for general-purpose filtering of text. To demonstrate the applicability of our design, we show how to partially parse and correct a sequence of badly ordered SQL commands. This example is not artificial; the badly ordered commands were generated by a commercial CASE tool for database development and the command set was too large for manual correction. A Pandemonium-style approach has many advantages over using full-blown parser generators and rule-based systems for such tasks.
References
[1]
Selfridge, O., "Pandemonium: A paradigm for learning", Mechanisation of Thought Processes: I, pp. 511--526, 1959.
[2]
Smieja, F., "The Pandemonium System of Reflective Agents", IEEE Transactions on Neural Networks, 7 (1), January 1996.
[3]
daemon, which is defined by Webster's as a "tutelary deity or spirit" does not have the evil connotation of demon and is used to denote an autonomous agent in the UNIX operating system. We find it an appropriate replacement.
[4]
Herein, we will use the term Pandemonium for brevity instead of the more accurate, but awkward, phrase Pandemonium-influenced.
[5]
Codd, E., "A Relational Model for Large Shared Data Banks", Communications of the ACM, 13 (6), June 1970.
[6]
Elmashri R. and B. S. Navathe, Fundamentals Of Database Systems, The Benjamin/Cummings Publishing Company, Inc., 1994.
[7]
ANSI (1986), American National Standards Institute: The Database Language SQL, Document ANSI X3.133, 1986.
[8]
Hwang, K., Advanced Computer Architecture, published by McGraw-Hill, pp. 265--321, 1993.
[9]
Johnson, S., "Yet another compiler-compiler", Bell Labs Technical Report TM-75-1273-6, July 1975.
Information & Contributors
Information
Published In
April 1997
314 pages
ISBN:0897919254
DOI:10.1145/2817460
- Conference Chair:
- Tom Cheatham,
- Program Chairs:
- Chrisila Pettey,
- Larry Dowdy,
- Jungsoon Yoo
Copyright © 1997 ACM.
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Association for Computing Machinery
New York, NY, United States
Publication History
Published: 02 April 1997
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