OntoWeb - A Semantic Web Community Portal

Beyond Ontology Construction; Ontology Services as Online Knowledge Sharing Communities

“…The mission of its ontology server is to "assist the gathering and incremental growth of ontoloiges" [23]. The main novelty of the proposed ontology server, that is in line with the rationale of ACOS, is stated as "the use of the extremely simple structures should -we conjecture -achieve at least a degree of scalability not possible with more complex representations hitherto used in the literature and practice; this extensional approach will naturally lead to very large sets, thereby moving the issue to matters of ontology organisation, rather than of representational power or sophistication" [10]. The proposed ontology model consists of 5 basic elements: context, terms, concepts, roles and lexicons; constraints and derivation rules are intentionally left outside the ontology.…”

“…The knowledge embedded in the expert system is not used for knowledge sharing across diverse communities. Some researchers have raised doubts that this change in the context of use of the knowledge system, from single interactions in a closed community of knowledge to interactions by many users in an open environment may render knowledge representation, such as Frames [7,5], inappropriate for use in the semantic web [8,10]. A typical example from the W3C for informally describing "person", using DAML+OIL, is: "a person is a subclass of animal, whose parent is also a person, who has only one father, and whose shoe size is at least 1" [11].…”

LKMS – A Legal Knowledge Management System Exploiting Semantic Web Technologies

“…We can cite ODESeW [19], OntoWebber [20], SEAL [21], OntoWeb [22] and OntoView [23]. Other tools share with LKMS the semantic browsing approach, such as already mentioned Magpie [24], or Topicalla [25], a client application for the Semantic Web which allows one to view information using a UI that is generated based on the kind of data available.…”

Building and managing personalized semantic portals

“…The process of content provision in semantic portals is difficult, especially where content is continuously changing. This problem has been studied by many semantic portals, such as OntoWeb [1] and ODESeW [2]. For instance, in OntoWeb, new added information can not be seen without restarting the server and in ODESeW, Web interface is difficult for the edition and the insertion of relationship values.…”