E. Motta, T. Rajan, J. Domingue and M. Eisenstadt, Methodological foundation of KEATS, the knowledge engineer's assistant, in: B. Wielinga, J. Boose, B. Gaines, G. Schreiber and M. van Someren, eds., Current Trends in Knowledge Acquisition (IOS Press, Amsterdam, 1990) 257-275.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....the acquisition of domain knowledge in the process of building an expert system is a difficult task [6] In recent years, many methodologies have therefore been proposed, providing systematic methods to be followed in building an expert system. Examples of such methodologies are KADS [3] and KEATS [15, 16]. Some of these methodologies include a set of software tools which help the knowledge engineer in building a specific application, mainly by assisting in the analysis of the problem domain. Some assistance by software tools may be provided in the design of the expert system as well. Examples of ....

....a set of software tools which help the knowledge engineer in building a specific application, mainly by assisting in the analysis of the problem domain. Some assistance by software tools may be provided in the design of the expert system as well. Examples of such tools are Shelley [2] and Acquist [15, 16]. Most methodologies place considerable emphasis on the process of gathering domain knowledge to be incorporated into the expert system, and on the development of conceptual models of the domain, being the result of the analysis of the knowledge collected. Although the HEPAR system was actually ....

E. Motta, T. Rajan, J. Domingue and M. Eisenstadt, Methodological foundation of KEATS, the knowledge engineer's assistant, in: B. Wielinga, J. Boose, B. Gaines, G. Schreiber and M. van Someren, eds., Current Trends in Knowledge Acquisition (IOS Press, Amsterdam, 1990) 257-275.

....in medicine, medical knowledge representation, expert systems, theorem proving. 1 Introduction In building medical expert systems, several obstacles may be encountered. One of these, the difficulty of collecting knowledge in the process of constructing an expert system, has drawn much attention [3, 21, 31, 32]. At the other end of the development cycle we have the validation of an expert system, which recently has been reviewed in several journals [30, 29] However, only slow progress is being made in clarifying the potentials and limitations of representation formalisms for the actual encoding of ....

E. Motta, T. Rajan, J. Domingue, M. Eisenstadt, Methodological foundation of KEATS, the knowledge engineer's assistant, in: B. Wielinga, J. Boose, B. Gaines, G. Schreiber, M. van Someren (eds.), Current trends in knowledge acquisition, (IOS Press, Amsterdam, 1990) 257-275.

....is centred around the development of a Viewpoint Bubble Diagram (VBD) Each candidate viewpoint is simply drawn as another bubble on a diagram space. This type of initial knowledge acquisition task is typically found in most KBS based methodologies (cf. the data conceptualization stage in KEATS (Motta et al. 1991)) Viewpoints may be proposed and rejected as an exploration of possible entities yields more knowledge about the scope of the domain. For example, the diagram in Figure 3 is a simplified version of a diagram generated for a supply chain scenario (Polyak 1998) using the CPM toolset which is ....

....knowledge acquisition architecture (Swartout Gil 1996) which dynamically forms expectations about the knowledge that needs to be acquired by the system and then uses these expectations to interactively guide the user through the knowledge acquisition process. Earlier we also mentioned the KEATS (Motta et al. 1991) toolset which can be seen as a precursor to the VITAL workbench which aims to provide methodological and software support for developing large, embedded KBS applications (Domingue, Motta, Watt 1993) There are are also specialised techniques, for example: knowledge acquisition on the fly (i.e. ....

Motta, E.; Rajan, T.; Domingue, J.; and Eisenstadt, M. 1991. Methodological foundations of KEATS, the knowledge engineer's assistant. Knowledge Acquisition 3(1):21--47.

....structures . Figure 5 shows annotated text in Cognosys, and Figure 6 shows this exported to the same visual knowledge editing tool as the TexAn results in Figure 3, again for further editing and development of knowledge structures by a domain expert. Other knowledge acquisition tools such as KEATS (Motta, Rajan, Domingue Eisenstadt, 1991) have been built around a hypertext environment specifically designed for knowledge acquisition. Fig.5 Development of knowledge structures from interview text in Cognosys 6 Fig.6 Development of knowledge structures from interview text in Cognosys There is also knowledge acquisition and ....

Motta, E., Rajan, T., Domingue, J. & Eisenstadt, M. (1991) Methodological foundations of KEATS, the Knowledge Engineer's Assistant. Knowledge Acquisition 3 (1) 21-47.

....While there are several systems with knowledge representation languages similar to KM, there are only a few that have an interface that duplicates the broswing and editing capabilities of KnEd. The systems whose interfaces are most similar to KnEd are the CYC[5, 13, 14] 1 , CODE4[6] and KEATS[4, 9] systems. The interfaces for these systems support windows similar to KnEd s text and tree panes. In addition, KEATS and CODE4 support a table display. This chapter will examine the differences between these systems. 3.1 Definitions In the following discussion, KnEd terminology will be used as ....

E. Motta, T. Rajan, J. Domingue, and M. Eisenstat. Methodological foundations of keats, the knowledge engineer's assistant. Knowledge Acquisition, 3(1):21--47, 1991.

....as follows: ffl kads [WB86] has become a most important modeling approach [Sch92] which follows a two step procedure. First, the application is specified at diverse levels and diverse aspects. Second, the operational model is designed and implemented. A similar approach is supported by keats [MRDE91] ffl Repertory grids have been used especially for knowledge elicitation. Systems using these techniques are for example, kss0 [SG87] and aquinas [BB87] ffl The framework of kl one has become a standard in the field of Knowledge Representation [BS85] It is a restriction of first order logic ....

Enrico Motta, Tim Rajan, John Domingue, and Marc Eisenstadt. Methodological foundations of KEATS, the knowledge engineer's assistant. Knowledge Acquisition, 3(1):21--47, 1991.

....when describing our work. As the applications described in section 4 attest, CODE4 is more generic in nature. It is unlikely that the knowledge acquisition systems cited in the next two paragraphs would have been applicable to such diverse applications. 4 KEATS (Motta, Eisenstadt et al. 1988) (Motta, Rajan et al. 1991) is a classic knowledge acquisition system intended for building expert system applications. KEATS s strength appears to be that it integrates useful classes of tools: 1) tools for informal segmenting and searching of transcripts of expert interviews in a hypertext mode; and 2) tools for drawing ....

Motta, E., T. Rajan, J. Domingue and M. Eisenstadt (1991). Methodological foundation of KEATS, the knowledge Engineer's Assistant. Knowledge Acquisition, 3: 21-47.

No context found.

Motta, E., Rajan, T., Domingue, J., and Eisenstadt, M. (1991b) Methodological Foundations of KEATS, The Knowledge Engineers' Assistant. Knowledge Acquisition 3(1), pp. 21-47.

....ONERA ONERA PTT ROYAL PTT NEDERLAND NV OU THE OPEN UNIVERSITY NOKIA NOKIA RESEARCH CENTER marked partners are involved in this task page 1 The Open University 1991 1. INTRODUCTION As discussed in (Motta, 1991) both the current practice of industrial KBS, and the consensus among researchers (Frisch Cohn, 1991) suggest that hybrid architectures, embedding a number of specialized representations reasoners, are required to enable knowledge engineers to build efficient and powerful KBs. This is due to the ....

....focussed on producing a practical and open architecture for integrating heterogeneous representation and reasoning systems. In this paper the architecture of the knowledge representation component of the VITAL workbench (VITAL KR) is described. The work reported here builds on an earlier document (Motta Stutt, 1991), which reviewed hybrid architectures for knowledge representation, and formulated a proposal for the architecture of the VITAL KR. Here, we revise the proposed architecture for the VITAL KR, and we describe in detail a number of aspects of the VITAL KR, which were only briefly discussed in the ....

[Article contains additional citation context not shown here]

Motta, E., Rajan, T., Domingue, J., and Eisenstadt, M. (1991a). Methodological Foundations of KEATS, The Knowledge Engineers'Assistant. Knowledge Acquisition, 3(1), March 1991.

....of domain representations via the direct editing of knowledge in a semantic network, frame, or rule representation. It is one of the most popular paradigms, typified by tools as VITAL T211.4 OU 3, KSS0 Review, p. 5 The Open University 1991 diverse as MOLE (Eshelman et. al, 1986) KEATS (Motta et al. 1990, 1991), and KADS (Breuker Wielinga, 1985, 1989) The crucial insight of Gaines analysis is his characterization of precisely what is elicited from experts by this technique, namely: The distinctions that the expert makes about domain entities (attributes and relations) The way in which these ....

Motta, E., Rajan, T., Domingue, J. & Eisenstadt, M. (1991). Methodological Foundations of KEATS, The Knowledge Engineers'Assistant. Knowledge Acquisition, 3 (1), pp. 21-47.

....ANDERSEN CONSULTING ONERA ONERA PTT ROYAL PTT NEDERLAND NV OU THE OPEN UNIVERSITY NOKIA NOKIA RESEARCH CENTER marked partners are involved in this task Initial Formulation of the Vital KR Framework, page 2 The Open University 1991 1. INTRODUCTION In a previous working memo (Motta, 1991a) we have indicated the roles that the Vital knowledge representation language (Vital KRL) has to fulfill in the Vital workbench, and the constraints imposed on the language specification by other tools in the project and by the need to comply with emerging international standards. The ....

....the constraints imposed on the language specification by other tools in the project and by the need to comply with emerging international standards. The combination of these roles and constraints produces a set of requirements that need to be satisfied by the Vital KRL. These are listed below (cf Motta, 1991a) Powerful data description facilities. To support tools integration, the development of large knowledge repositories, and the knowledge engineer s data description requirements. Clean semantics. To facilitate the development of debugging and V V tools, and the design of compilers and ....

[Article contains additional citation context not shown here]

Motta, E., Rajan, T., Domingue, J., and Eisenstadt, M. (1991). Methodological Foundations of KEATS, The Knowledge Engineers'Assistant. Knowledge Acquisition, 3(1), March 1991.

....NOTTINGHAM BULL BULL CEDIAG AC ANDERSEN CONSULTING ONERA ONERA PTT ROYAL PTT NEDERLAND NV OU THE OPEN UNIVERSITY NOKIA NOKIA RESEARCH CENTER marked partners are involved in this task Intg. of Heterogeneous Languages. Page 2 The Open University 1991 1. INTRODUCTION In (Motta, 1991b) we put forward an initial proposal for the architecture of the knowledge representation component of the VITAL toolkit (VITAL KR) In that proposal a two layer architecture was suggested, comprising the Executable Knowledge Bases (EKB) layer, and the Generic Description Language (GDL) layer. ....

....engineer with a range of efficient KR tools. The latter is envisaged to be a logic based language which can be used to describe formally, and in a homogeneous fashion, the contents of a KB encoded at the EKB layer. The advantages of this twolayer framework have been extensively discussed in (Motta, 1991b) and in (O Hara Reichgelt, 1991) and will not be repeated here. The paper by O Hara Reichgelt discusses a number of formalisms that can be used to formalize the GDL layer of the VITAL KR. In this paper we discuss the issues concerning the specification of an efficient and powerful hybrid ....

[Article contains additional citation context not shown here]

Motta, E., Rajan, T., Domingue, J., and Eisenstadt, M. (1991). Methodological Foundations of KEATS, The Knowledge Engineers'Assistant. Knowledge Acquisition, 3(1), March 1991.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC