A Graph-Based Knowledge Representation Language for Concept Description
نویسندگان
چکیده
In this paper, we propose an expressive concept description language, , for real world applications combining features of both Conceptual Graphs (CGs) and Description Logics (DLs). Regarding concept descriptions in CGs, namely existential, positive and conjunctive graphs, is the closure of this language under the Boolean operations. Now regarding DLs, is an extension of with graph structures in concept descriptions. extends with the intersection , composition , converse of roles and role identity : we show how these constructs can be expressed with EG and GR constructs. We provide a sound and complete tableaux algorithm to prove the satisfiability of in NEXPTIME.
منابع مشابه
خوشه‌بندی اسناد مبتنی بر آنتولوژی و رویکرد فازی
Data mining, also known as knowledge discovery in database, is the process to discover unknown knowledge from a large amount of data. Text mining is to apply data mining techniques to extract knowledge from unstructured text. Text clustering is one of important techniques of text mining, which is the unsupervised classification of similar documents into different groups. The most important step...
متن کاملA RuleML-Based Ontology for Interoperation between Learning Objects and Learners
This paper presents a context mediation based approach for achieving interoperability among semantically heterogeneous learning objects and learners. The presented work is focused on building a common ontology for the domain of learning objects participating in data exchange. An ontological graph is proposed as a knowledge representation of the ontology, and methods for manipulating ontologies ...
متن کاملSimplified Representation of Concepts and Relations on Screen
The fully automated generation of diagnostic codes requires a knowledge-based system which is capable of interpreting noun phrases. The sense content of the words must be analysed and represented for this purpose. The codes are then generated based on this representation.In comparison with other knowledge-based systems, a system of this kind places the emphasis on the data structures and not on...
متن کاملAcquisition of Terminological Knowledge from Social Networks in Description Logic
The Web Ontology Language (OWL) has gained serious attraction since its foundation in 2004, and is heavily used in applications requiring representation of as well as reasoning with knowledge. It is the language of the Semantic Web, and has a strong logical underpinning by means of so-called Description Logics (DLs). DLs are a family of conceptual languages suitable for knowledge representation...
متن کاملA Declarative Modeling Language for Concept Learning in Description Logics
Learning in Description Logics (DLs) has been paid increasing attention over the last decade. Several and diverse approaches have been proposed which however share the common feature of extending and adapting previous work in Concept Learning to the novel representation framework of DLs. In this paper we present a declarative modeling language for Concept Learning in DLs which relies on recent ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002