We are experimenting with the representation of a DTD and associated documents (i.e., documents conformant to the DTD) in a knowledge representation (KR) system, in order to provide more sophisticated query and retrieval from TEI documents than current systems provide. We are using CLASSIC, a frame-based representation system developed at AT&T Bell Laboratories. Like many KR systems, CLASSIC en...

A common problem of ontologies is that their taxonomic structure is often poor and confusing. This is typically exemplified by the unrestrained use of subsumption to accomplish a variety of tasks. In this paper we show how a formal ontology of unary properties can help using the subsumption relation in a disciplined way. This formal ontology is based on some meta-properties built around the fun...

Looking at the ongoing evolution in electronic commerce there are more and more business models becoming significant. E-shops, e-auctions or etendering are not the only possibilities for a company to be active in electronic commerce. This article presents many relevant business models and systematically classifies them. Mainly the classification is based on the type of business subjects like su...

Taxonomies based on a partial-ordering relation commonly known as is-a, class inclusion or subsumption have become an important tool in conceptual modeling. A well-formed taxonomy has significant implications for understanding, reuse, and integration, however the intuitive simplicity of taxonomic relations has led to widespread misuse, making clear the need for rigorous analysis techniques. Whe...

statement of the problem in iran and most countries temporomandibular disorders (tmds) are part of the education curriculum of general dentistry. most patients with these disorders are first referred to dentists. therefore, awareness of general dentists’ knowledge in this field is very important purpose the aim of this study was to evaluate knowledge and beliefs of general dental practitioners ...

Emerging Patterns (EPs) are a data mining model that is useful as a means of discovering distinctions inherently present amongst a collection of datasets. However, current EP mining algorithms do not handle attributes whose values are asscociated with taxonomies (is-a hierarchies). Current EP mining techniques are restricted to using only the leaf-level attribute-values in a taxonomy. In this p...

While a foundational ontology can solve interoperability issues among the domain ontologies aligned to it, multiple foundational ontologies have been developed. Thus, there are still interoperability issues among domain ontologies aligned to different foundational ontologies. Questions arise about the feasibility of linking one’s ontology to multiple foundational ontologies to increase its pote...

We introduce a predictive concept recognition methodology for description logics based on a new closed terminology assumption. During knowledge engineering, our system adopts the standard open terminology assumption as it automatically classifies concept descriptions into a taxonomy via subsumption inferences. However, for applications like configuration, the terminology becomes fixed during pr...