Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369-376, CA, 1997. AAAI.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....Currently, KANAL is being developed as a module within an ambitious end to end system that will support subject matter experts entering domain knowledge as part of the DARPA Rapid Knowledge Formation (RKF) program. In this project, users will build process models is by using concept composition [Clark Porter, 1997] . Users can build process models by retrieving components (actions and objects) and then connecting them using various kinds of links. The user interface Figure 2: The KANAL interface for building process models. and the component library have not been fully implemented and integrated with KANAL, ....

Clark, P. & Porter, B. Building concept representations from reusable components. In Proceedings of AAAI-97, pp. 369-376, 1997.

....library have not been fully implemented and integrated with KANAL, although a preliminary version of the three was done to illustrate the approach with a small scale scenario of a process model for virus invasion. In this project, users will build process models is by using concept composition [Clark Porter, 1997] . Users can build process models by retrieving components (actions and objects) and then connecting them by various links. Figure 2 is an interface that we built to show how the component approach can be used to build process models by linking various objects in the KB. The user has selected the ....

Clark, P. & Porter, B. Building concept representations from reusable components. In Proceedings of AAAI-97, pp. 369-376, 1997.

....followed systematically to elicit knowledge from experts and to design the new system. These methodologies can be used in combination with our approach. There is also related researchindeveloping tools to help users build ontologies #Fikes, Faquhar, and Rice, 1997; Terveen and Wroblewski, 1990; Clark and Porter 1997#. Unlike our work, these tools do not tackle the issue of using these ontologies within a problemsolving context. Many of the research contributions in these tools concern the reuse of ontologies for new problems, collaborative issues in developing knowledge bases, and the visualization of large ....

Clark, P., and Porter, B. #1997#. Building concept representations from reusable components. In Proceedings of the Fourteenth National ConferenceonArti#cial Intelligence, pages 369#376.

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Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369-376, CA, 1997. AAAI.

....role in a diagnosis PSM applied to medical diagnosis might be filled with disease types) in contrast, our patterns are closer to schemata than procedures, and applied instead through morphing. Research on compositional methods for constructing knowledge bases (eg [Falkenhainer and Forbus, 1991, Clark and Porter, 1997, Noy and Hafner, 1998] has explored factoring domain knowledge into component theories, analagous to factoring procedural knowledge into PSMs. A component theory describes relation ships among a set of objects (its participants) and is applied in an analagous way to PSMs, by instantiating these ....

Clark, P. and Porter, B. (1997). Building concept representations from reusable components. In AAAI-97, pages 369-376, CA. AAAI. (www.cs.utexas.edu/users/pclark).

....to always applying the Container view on every instance of Room. In other words, the isa link is simply the permanent, hard wired application of a simple view in the KB. 3. 4 The Bioremediation Example This is an earlier representation of Bioremediation, taken from our earlier AAAI paper [7] and implemented by hard wiring its abstractions as three, overlapping superclasses: Bioremediation has (superclasses (Conversion Treatment Digestion) every Bioremediation has (raw materials ( Self patient) eater ( Self theme) 5 (food ( Self patient) theme ( a Microbes) ....

Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369--376, CA, 1997. AAAI. (http://www.cs.utexas.edu/users/pclark/papers).

....about the new concept. The focus of this paper is on step 2 above, the construction of new representations. Components A component is a small set of first order logic (FOL) axioms about a particular concept, gathered into a single data structure, encoding a coherent description of that concept [5]. The user is provided with a pre built library of such components to work with. Creating this library is a separate, major goal of our project [1] For example, consider a (much simplified) component describing the process of Invasion . It might include axioms stating that: The defending ....

P. Clark and B. Porter. Building concept representations from reusable components. In AAAI-97, pages 369-- 376, CA, 1997. AAAI.

....to make our component library intuitive to users accustomed to expressing knowledge with natural language. This paper is part of a larger context of ongoing research on knowledge base construction by composition. Elsewhere we have discussed: motivations for the approach and algorithms [5, 6, 7] . a graphical user interface [8] a knowledge representation and reasoning system [6] question answering and explanation generation [17, 24] Within that context, this paper provides a brief tour of an early version of our component library to highlight its requirements, construction, ....

Clark, P., and Porter, B. Building Concept Representations from Reusable Components, in Proceedings of AAAI `97 (Providence RI, July 1997), AAAI Press, 369-376.

....Note 12 Peter Clark Boeing Research PO Box 3707, Seattle, WA 98124 peter.e. clark boeing.com Bruce Porter Department of Computer Sciences University of Texas at Austin, TX 78712 porter cs.utexas.edu Feb 27th 1998 Abstract This working note aims to develop the ideas of our earlier AAAI 97 paper [Clark and Porter, 1997] into a more coherent implementation framework. We would like to reach the stage where building and linking components becomes a routine task, but this requires a concrete description of what a component data structure looks like and how it would be used. This document aims to do this, adding in ....

....task, but this requires a concrete description of what a component data structure looks like and how it would be used. This document aims to do this, adding in some important specifics to the earlier work. 1 Introduction This working note aims to develop the ideas of our earlier AAAI 97 paper [Clark and Porter, 1997] into a more coherent implementation framework. We would like to reach the stage where building and linking components becomes a routine task, but this requires a concrete description of what a component data structure looks like and how it would be used. This document aims to do this, adding in ....

Clark, P. and Porter, B. (1997). Building concept representations from reusable components. In AAAI-97, pages 369--376, CA. AAAI. (http://www.cs.utexas.edu/users/pclark/papers/aaai97.ps).

.... original script idea, later strongly advocated that scripts should be build compositionally out of fragments ( MOPs ) Schank, 1982] similarly, Dyer sketched out some general ideas on how this composition might look [Dyer, 1981] We have also been pushing on this idea in our work on composition [Clark and Porter, 1997, Clark and Porter, 1995] as have others [Chapman, 1986, Noy and Hafner, 1998, Levy, 1993] This Working Note presents a concrete KM implementation of these ideas, and in particular shows how extra interconnections between components in this case, constraints on the ordering of events in the ....

Clark, P. and Porter, B. (1997). Building concept representations from reusable components. In AAAI-97, pages 369--376, CA. AAAI. (http://www.cs.utexas.edu/users/pclark/papers).

....together, the compound result may be recognizable as an instance of an already known concept, and allow further information to be concluded. This in turn may allow further classification to occur etc. This cycle of classification and elaboration can be powerful, and is described in more detail in [13]. Definitional properties of a concept are placed on a separate frame for that concept, specified just like a normal frame except using a has definition rather than has keyword. For indexing purposes, the definitional properties must include an instance of slot, stating the most general ....

Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369--376, CA, 1997. AAAI. (http://www.cs.utexas.edu/users/pclark/papers).

....about the new concept. The focus of this paper is on step 2 above, the construction of new representations. Components A component is a small set of first order logic (FOL) axioms about a particular concept, gathered into a single data structure, encoding a coherent description of that concept [5]. The user is provided with a pre built library of such components to work with. Creating this library is a separate, major goal of our project [1] For example, consider a (much simplified) component describing the process of Invasion . It might include axioms stating that: The defending ....

P. Clark and B. Porter. Building concept representations from reusable components. In AAAI-97, pages 369-- 376, CA, 1997. AAAI.

....to make our component library intuitive to users accustomed to expressing knowledge with natural language. This paper is part of a larger context of ongoing research on knowledge base construction by composition. Elsewhere we have discussed: motivations for the approach and algorithms [5, 6, 8] . a graphical user interface [8] a knowledge representation and reasoning system [6] question answering methods and explanation generation [18, 25] Within that context, this paper provides a brief tour of an early version of our component library to highlight its requirements, contents, ....

Clark, P., and Porter, B. Building Concept Representations from Reusable Components, in Proceedings of AAAI `97 (Providence RI, July 1997), AAAI Press, 369-376.

....for complete coverage. This barrier has been a stumbling block for many knowledge based projects; the solution , which we are actively pursuing as a research theme, is the construction of a knowledge base from prefabricated, reusable knowledge components, rather than hand built from scratch [12]. This approach is still a research topic, but we are hopeful that it can significantly ease the knowledge modeling bottleneck in the future. A second, related issue is that constructing a knowledge base requires a skilled knowledge engineer; we thus also see the need for powerful but easy to use ....

Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369--376, CA, 1997. AAAI. (http://www.cs.utexas.edu/users/pclark/papers).

.... to Reiter s work [10, Chapter 5] This mechanism is described in [11] The use of a component based architecture ( mini theories ) aims to organize knowledge into reusable and maintainable modules (rather than create a gigantic, monolithic knowledge base) This approach is described more fully in [12], and can be viewed as applying ideas from compositional modeling (e.g. 13] to knowledge based construction. Several other groups are also pursuing work in modular knowledge base construction, including the Ontolingua ontology library project [14] microtheories [15] and the TOVE project [16] ....

Peter Clark and Bruce Porter. Building concept representations from reusable components. In AAAI-97, pages 369--376, CA, 1997. AAAI. (http://www.cs.utexas.edu/users/pclark/papers/aaai97.ps).

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P. Clark and B. Porter, "Building Concept Representations from Reusable Components, " Proc. 14th Nat'l Conf. Artificial Intelligence (AAAI-97), MIT Press, Cambridge, Mass., 1997, pp. 369--376.

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Clark, P. and Porter, B. (1997). Building concept representations from reusable components.

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