Feature selection is an important preprocess for data mining. The soft set theory is a new mathematical tool to deal with uncertainties. Merging the soft set theory into the feature selection process based on rough sets facilitates the computation with equivalence classes and improves the efficiency. We propose a paired relation soft set model based on equivalence classes of the information system. Then we use it to present the lower approximate set in the form of soft sets and calculate the degree of dependency between relations. Furthermore, we give a new mapping to obtain equivalence classes of indiscernibility relations and propose a feature selection algorithm based on the paired relation soft set model. Compared to the algorithm based NSS, this algorithm shows 18.17% improvement on an average. Meantime, both of the algorithms show a good scalability.
목차
Abstract 1. Introduction 2. Essential Rudiments 2.1. Rough Set Theory 2.2. Soft Set Theory 2.3. A Soft Set Model on Equivalence Class 3. Proposed Paired Relation Soft Set Technique 3.1. Paired Relation Soft Set 3.2. Computation of Dependency Degree Based on PRSS 3.3. Computation of Equivalence Classes of Indiscernibility Relations 3.4. Feature Selection Algorithm Based on PRSS 3.5. Feature Selection Algorithm Based on NSS 4. Experimental Results 5. Conclusion Acknowledgment References
키워드
soft setfeature selectionrough setinformation system
저자
Daoli Yang [ School of Economics and Business Administration, Chongqing University, Chongqing 400044, PR China ]
Zhi Xiao [ School of Economics and Business Administration, Chongqing University, Chongqing 400044, PR China, Chongqing Key Laboratory of Logistics, Chongqing University, Chongqing 400044, PR China ]
Corresponding Author
Wei Xu [ School of Economics and Business Administration, Chongqing University, Chongqing 400044, PR China ]
Xianning Wang [ School of Economics and Business Administration, Chongqing University, Chongqing 400044, PR China ]
Yuchen Pana [ School of Economics and Business Administration, Chongqing University, Chongqing 400044, PR China ]
보안공학연구지원센터(IJDTA) [Science & Engineering Research Support Center, Republic of Korea(IJDTA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Database Theory and Application
간기
격월간
pISSN
2005-4270
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Database Theory and Application Vol.9 No.5