A Study of Service Decision Method in Context Awareness System

상황인식 시스템에서의 서비스 결정 방법에 관한 연구

  • 허경욱 (경남대학교 공과대학 컴퓨터공학과) ;
  • 하경재 (경남대학교 공과대학 컴퓨터공학과)
  • Received : 2012.06.28
  • Accepted : 2012.07.20
  • Published : 2012.07.31


In this thesis, I categorize expression of context data required for context data inference according to five Ws and one H(5W1H) in Ubiquitous computing environment and infer superordinate context by combining context data of 4W1H with inferred context of why. This thesis suggests that we categorize specific context and service according to 6W2H added Whom(specific data or service) and How much (accuracy), and determine proper services for specific contexts by introducing the concept of rough set for expression and inference of categorized contexts and inaccurate knowledge. Since there is an limitation of the set of 0 and 1 when concerned with accuracy of services, I introduce the concept of fuzzy set. To provide users with the most appropriate service by ridding of unnecessary properties through the process of reduction, I also use the concept of rough set.


Ubiquitous Computing;Context Awareness;Fuzzy Set;Rough Set;6W2H


Supported by : 경남대학교