P. Beys, R. Benjamins, and G. van Heijst. Remedying the reusability-usability trade-off for problem solving methods. In B.R. Gaines and M. Mussen, editors, Proceedings of the KAW-96, Banff, Ca, 1996.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....PSMs. Task independent PSMs do not subscribe to a problem type specific terminology but specify reasoning steps either in terms of a generic problem solving paradigm, such as search (Newell and Simon, 1976) or in terms of the epistemological properties of the domain knowledge base Page 2 (Beys et al. 1996) 1 . Hence, task independent PSMs tackle problems characterized at a higher level of abstraction than task specific ones. For instance, the A search algorithm (Nilsson, 1980) can be viewed as a PSM for finding the cheapest path according to some criterion to a solution state in a state ....

Beys, P., Benjamins, R., and Van Heijst, G. (1996). Remedying the Reusability-Usability Trade-off for Problem-Solving Methods. In B. R. Gaines and M. Musen (editors), Proceedings of the 10th Banff Knowledge Acquisition for Knowledge-Based System Workshop (KAW96), Banff, Canada, 9-14 November, 1996.

.... usability trade off [KBD 91] Recently, research has been conducted to overcome this dichotomy by introducing adapters that gradually adapt task neutral PSMs to taskspecific ones [FG97] and by semi automatically constructing the mappings between task neutral PSMs and domain knowledge [BBvH96] Libraries with informal PSMs provide above all support for the conceptual specification phase of the KBS, that is, they help significantly in constructing the reasoning part of the expertise model of a KBS [SWB93] Because such PSMs are informal, they are relatively easy to understand and ....

P. Beys, V. R. Benjamins, and G. van Heijst. Remedying the reusability-usability tradeoff for problem-solving methods. In B. R. Gaines and M. A. Musen, editors, Proceedings of the 10th Banff Knowledge Acquisition for KnowledgeBased Systems Workshop, pages 2.1--2.20, Alberta, Canada, 1996. SRDG Publications, University of Calgary.

....by substituting the manifestation of a symptom (medical diagnosis) with the observation of a feature, and diseases with classes of apples. Also a consequence to this strong commitment to a task is that the rationale behind the use of a PSM is hidden by task specific terminology. In (Beys et al. 1996) an experiment is reported about reusing (implemented) domain knowledge by means of automatic mapping. The method used was first made task independent. Two mappings, using different sources of knowledge, were generated and two different interpretations were proposed although one could have easily ....

....the reuse engineer is supposed to be a program. In order to enable this agent to make intelligent choices (such as verification of the existence of knowledge, selection and configuration of a method, goal matching) we need to provide it with an enhanced description of the types of knowledge. In (Beys et al. 1996) a problem is presented that hampers reusability of both methods and domains: classical approaches in Knowledge Acquisition study reasoning methods in their context. PSMs are described using task dependent terminology that increases the difficulty to reuse them outside the specific task. This ....

Beys et al., 1996 BEYS P., BENJAMINS R., AND VAN HEIJST G. , (1996), Remedying the reusability-usability trade-off for problem-solving methods. In B. Gaines, editor, Proceedings of the 11 th Banff Knowledge Acquisition for Knowledge-Based Systems Workshop, Banff, Canada, November 1996, University of Calgary.

....observations, or need only be consistent with it) A configured PSM corresponds to all parameters having a value, and is executable by a theorem prover. 2. 2 Describing PSMs The approaches presented, all distinguish explicitly the notion of PSM (e.g. PROT EG E (Molina et al. 1996) CommonKADS (Beys et al. 1996), EXPECT (Gil Melz, 1996) KSM (Molina et al. 1996) New KARL (Angele et al. 1996) which is something the field has achieved in the last four years. Before that, PSMs were only implicitly present in the various modeling approaches and compiled out in fixed task decompositions. 4 The ....

....PSMs (Benjamins, 1995) was used in the construction of a problem solver for a real life application at Unilever (Speel Aben, 1996) Here the main conclusion was that such a library is extremely helpful. A basic question underlying the two papers mentioned above is why can we reuse a PSM Beys et al. 1996 focussed exactly on this issue and investigated the role of taskneutrality in reuse. In general, a PSM can be used if its assumptions are satisfied in a specific application. If a PSM can also be applied (i.e. reused) in another application (which may involve a different task and domain) then ....

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Beys, P., Benjamins, V. R., & van Heijst, G. (1996). Remedying the reusability-usability tradeoff for problem-solving methods. In Gaines, B. R. & Musen, M. A., editors, Proceedings of the 10th Banff Knowledge Acquisition for Knowledge-Based Systems Workshop, pages 2-- 1,2--20, Alberta, Canada. SRDG Publications, University of Calgary.

....the goal is very specific say, diagnose TC tuner circuit then the method s reusability is limited. This has come to be called the usabilityreusability trade off (Klinker et al. 1991) There have been proposals in the literature to distinguish a class of methods called task neutral methods (Beys et al. 1996) i.e. methods that are not intended for a specific goal type. The intent is to capture the idea that some methods have extremely general applicability, while others seem to be more narrowly tailored to tasks of great specificity. We think that there is no binary separation between task specific ....

Beys et al., 1996 Beys, P., Benjamins, V. R., & van Heijst, G. (1996). Remedying the reusability-usability tradeoff for problem-solving methods. In Gaines, B. R. & Musen, M. A., (Eds.) , Proceedings of the 10th Banff Knowledge Acquisition for Knowledge-Based Systems Workshop, pp.

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P. Beys, R. Benjamins, and G. van Heijst. Remedying the reusability-usability trade-off for problem solving methods. In B.R. Gaines and M. Mussen, editors, Proceedings of the KAW-96, Banff, Ca, 1996.

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P. Beys, R. Benjamins, and G. van Heijst. Remedying the reusability-usability trade-off for problem solving methods. In B.R. Gaines and M. Mussen, editors, Proceedings of the KAW-96, Banff, Ca, 1996.

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