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Representation and Reasoning of User Context Using Fuzzy OWL
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Jong Soo Sohn (Department of Computer and Information Science, Korea University)
In Jeong Chung (Department of Computer and Information Science, Korea University)
Vol. 14, No. 1, Page: 35 ~ 45
Keywords
Semantic Web, Ontology, Ubiquitous, Fuzzy, Fuzzy
Abstract
In order to constructan ubiquitous computing environment, it is necessary to develop a technology that can recognize users and circumstances. In this regard, the question of recognizing and expressing user Context regardless of computer and language types has emerged as an important task under the heterogeneous distributed processing system. As a means to solve this task of representing user Context in the ubiquitous environment, this paper proposes to describe user Context as the most similar form of human thinking by using semantic web and fuzzy concept independentof language and computer types. Because the conventional method of representing Context using an usual collection has some limitations in expressing the environment of the real world, this paper has chosen to use Fuzzy OWL language, a fusion of fuzzy concept and standard web ontology language OWL. Accordingly, this paper suggests the following method. First we represent user contacted environmental information with a numerical value and states, and describe it with OWL. After that we transform the converted OWL Context into Fuzzy OWL. As a last step, we prove whether the automatic circumstances are possible in this procedure when we use fuzzy inference engine FiRE. With use the suggested method in this paper, we can describe Context which can be used in the ubiquitous computing environment. This method is more effective in expressing degree and status of the Context due to using fuzzy concept. Moreover, on the basis of the stated Context we can also infer the user contacted status of the environment. It is also possible to enable this system to function automatically in compliance with the inferred state.
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Fuzzy OWL을 이용한 사용자 Context의 표현 및 추론
손종수 (고려대학교 전산학과)
정인정 (고려대학교 컴퓨터정보학과)
Abstract
본 논문에서는 유비쿼터스 환경에서 사용자 Context를 표현하는 과제를 해결하기 위하여 시맨틱 웹 기술 및 퍼지 개념을이용하여 사용자 Context를 언어와 기종에 독립적이면서 사람이 생각하는 것과 최대한 유사한 형태로 기술하는 것을 제안한다. 재래의 방법으로 사용되어온 일반 집합으로 Context를 표현하는 방법은 실세계의 환경을 표현하는데 한계가 있기 때문에 본 논문에서는 퍼지 개념과 표준 웹 온톨로지 언어 OWL이 융합된 Fuzzy OWL 언어를 사용하였다. 본 논문에서 제안하는 방법은 사용자가 접한 환경정보들을 수치로 표현하며 이를 OWL로 기술한다. 그리고 OWL로 변환된 Context를 Fuzzy OWL로 변환한다. 마지막으로 자동적인 상황인지가 가능한지 여부를 퍼지 추론 엔진인 FiRE를 사용하여 검증한다. 본 논문에서 제시하는 방법을 사용하면 유비쿼터스 컴퓨팅 환경에서도 사용할 수 있는 형태로 Context를 기술할 수 있으며 퍼지의 개념을 사용하여 Context를 표현하기 때문에 상태나 정도를 표현함에 있어 좀 더 효과적이다. 뿐만 아니라, 기술된 Context를 기반으로 현재 사용자가 접한 환경의 상태를 추론할 수 있으며 추론된 상태에 따라 시스템이 자동적으로 작동하게 하는 것이 가능하다.
Cite this article
JIIS(APA) Style
Sohn, J. S., & Chung, I. J. (2008). Representation and Reasoning of User Context Using Fuzzy OWL. Journal of Intelligence and Information Systems, 14(1), 35-45.

IEEE Style
Jong Soo Sohn, and In Jeong Chung, "Representation and Reasoning of User Context Using Fuzzy OWL", Journal of Intelligence and Information Systems, vol. 14, no. 1, pp. 35~45, 2008.

ACM Style
Sohn, J. S., & Chung, I. J., 2008. Representation and Reasoning of User Context Using Fuzzy OWL. Journal of Intelligence and Information Systems. 14, 1, 35--45.
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@article{Sohn:JIIS:2008:316,
author = {Sohn, Jong Soo and Chung, In Jeong},
title = {Representation and Reasoning of User Context Using Fuzzy OWL},
journal = {Journal of Intelligence and Information Systems},
issue_date = {March 2008},
volume = {14},
number = {1},
month = Mar,
year = {2008},
issn = {2288-4866},
pages = {35--45},
url = {},
doi = {},
publisher = {Korea Intelligent Information System Society},
address = {Seoul, Republic of Korea},
keywords = { Semantic Web, Ontology, Ubiquitous, Fuzzy and Fuzzy },
}
%0 Journal Article
%1 316
%A Jong Soo Sohn
%A In Jeong Chung
%T Representation and Reasoning of User Context Using Fuzzy OWL
%J Journal of Intelligence and Information Systems
%@ 2288-4866
%V 14
%N 1
%P 35-45
%D 2008
%R
%I Korea Intelligent Information System Society