Giarratano, J. C. CLIPS User's Guide. NASA, Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, Houston, TX, 1993.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....Associate (AFLOAT) system [Ma96] being developed at GSFC. In AFLOAT, each agent can be viewed as a miniature expert system, or an expert system in a limited domain. The schema based reasoning (SBR) paradigm [Tu94] is followed. Our prototype implementation uses the CLIPS expert system shell [Gi93]. Finally, our formalization is presented in the Z object oriented specification language [La95] The technical areas on which our system generates references are exactly the areas we have applied to our work: CLIPS, Z , SBR, and multi agent systems. Our model involves an interface agent that ....

....are of the form (E,i) indicating the i th occurrence of event E. Other terms, including time valued terms, can be expressed. RTL formulae are constructed from terms, predicates, temporal operators, and quantifiers. We shall explain more about Z as the need arises. 3.2. CLIPS CLIPS [Gi93] is an expert system tool that represents knowledge in three ways: rules, functions, and object oriented programming. The left hand side of a rule consists of one or more patterns. The rule is activated when each pattern is matched against a fact or an instance of a user defined class. When a rule ....

Giarratano, J.C., CLIPS User's Guide (CLIPS Version 6.0). NASA L.B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, 1993.

.... Formal Foundations of Agents, from NASA Goddard Space Flight Center. the schema based reasoning (SBR) approach [Tu94] which uses declarative knowledge structures to store an agent s problem solving knowledge. Originally implemented in the C Language Integrated Production System (CLIPS) [Gi93], our current prototype is implemented mainly in Jess, a clone of CLIPS. The system s specification is formalized in the Z object oriented specification language [La95] following Mr. Murphy s project. Its concurrency and communications issues in particular are specified in the Real Time ....

Giarratano, J.C., CLIPS User's Guide (CLIPS Version 6.0). NASA L.B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, 1993.

....characterised by the the data items in objects. Therefore, a natural integration of objects and rules is to use objects as storage for the working memory in a rule based system, and rules execute actions depending on the values of objects in the working memory. A number of AI tools such as CLIPS [Giarratano 93] have provided such facilities to embed objects in rules. An alternative way is use OO languages as the basis and implement rules which describe relationships of objects on the top of them. Domain expertise always relates to inter relationships between objects, therefore a declarative query ....

Joseph Giarratano, CLIPS User's Guide (CLIPS Version 6.0), Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, NASA, USA, 1993.

....parts which can be used to manufacture other parts and inventory. It also creates facts, which will result in instances, that are needed in the final database, but are not affected by the simulator. The simulator, written in the CLIPS (C Language Integrated Production System) production system [12, 14, 15] simulates a business environment and records data resulting from the simulation in an archival file. The postprocessing component transforms data supplied by the simulator, as well as data supplied by the fact generation, into a number of files whose format is suitable for ready importation into ....

Joseph C. Giarratano. CLIPS User's Guide, CLIPS Version 6.0. NASA Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, May 1993.

....of misuse intrusion detection uses an expert system. This paper proposes another technique, that of using pattern matching as a viable option for misuse intrusion detection [sec 4] An example of the former is [SS92] which encodes knowledge about attacks as if then implication rules in CLIPS [Gia92] and asserts facts corresponding to audit trail events. Rules are encoded to specify the conditions requisite for an attack in their if part. When all the conditions on the left side of a rule are satisfied, the actions on the right side are performed. The primary disadvantage of using expert ....

Joseph C. Giarratano. Clips Version 5.1 User's Guide. NASA, Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, March 1992.

....the state of the system and is used to fire rules. In an OO system, the state is characterised by the the data items in objects. Therefore, a natural integration of objects and rules is to use objects as storage for the working memory in a rule based system. A number of AI tools such as CLIPS [Giarratano 93] have provided such facilities to embed objects in rules. An alternative way is use OO languages as the basis and implement rules which describe relationships of objects on the top of them. Domain expertise always relates to inter relationships between objects, therefore a declarative query ....

Joseph Giarratano, CLIPS Usre's Guide (CLIPS Version 6.0), Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, NASA, USA, 1993.

....of 200 seconds. usesa construct called deftemplates to represent linguistic variables. The structure of a fuzzy deftemplate can be found in [3] Similarly, the production rule graphs must be implemented. The format of a FuzzyCLIPS rule is given in [3] and is similar to the format of a CLIPS rule [2]. 5. Results The current implementation of the Fuzzy Wingman operates on Silicon Graphics workstations. The Fuzzy Wingman achieves an update rate of approximately 15 cycles per second. In fact, it was necessary to slow down the number of updates that the FW was capable of in order to synchronize ....

J. C. Giarratano. CLIPS User's Guide, Volume 1. NASA, Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, Houston, TX, 1991.

....of using production systems is the separation of control reasoning from the formulation of the problem solution. An example of the use of such systems in intrusion detection is described by Snapp and Smaha [SS92] This system encodes knowledge about attacks as if then implication rules in CLIPS [Gia92] and asserts facts corresponding to audit trail events. Rules are encoded to specify the conditions requisite for an attack in their if part. When all the conditions on the left side of a rule are satisfied, the actions on the right side are performed. Practical problems in the effective ....

Joseph C. Giarratano. Clips Version 5.1 User's Guide. NASA, Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, March 1992. 134

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Giarratano, J. C. CLIPS User's Guide. NASA, Lyndon B. Johnson Space Center, Information Systems Directorate, Software Technology Branch, Houston, TX, 1993.

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J. Giarratano. CLIPS User's Guide. NASA Johnson Space Center, Information Systems Directorate, Software Technology Branch. 1993.

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