The time aspect is not currently taken into account for finding a region of interesting (ROI) or a hot region, so that due to the time to visit frequently a place cannot be determined, it is difficult to discover the visiting regularity for a moving object. To this end, the spatio-temporal item (STI) and frequent spatio-temporal item (FSTI) integrated spatial and temporal attributes are defined. The FSTIs can represent a moving object often visits which area in what time, which can provide more useful information to improve the level of the location-based services(LBS). In order to find FSTIs, STIs are generated by using a density-based clustering algorithm to recognize the stay regions of objects, and then the STIs are mapped to 3D-grids integrated spatial and temporal dimensions. Finally, the extraction - merger strategy is used on the frequent grid cells to recombine the FSTIs. Experimental results on real dataset show that the approach proposed for mining FSTIs is effective.
목차
Abstract 1. Introduction 2. STIs Generation 2.1. Definition of STI 2.2. Generate STIs from Stay Regions 3. STIs Mapping 3.1. Set the 3D-grid Cells 3.2. Map STIs to 3D-grids 4. Extraction-merger Strategy 5. Experiment 5.1. Select Dataset 5.2. Set the Parameters 5.3. Result and Analysis 6. Conclusion and Future Work References
키워드
Data MiningTrajectory DataFrequent spatio-temporal Items3D-grids
저자
Fengjiao Yin [ School of Information Science and Engineering Dalian Polytechnic University No.1, Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China ]
Xu Li [ School of Information Science and Engineering Dalian Polytechnic University No.1, Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China ]
Chunlong Yao [ School of Information Science and Engineering Dalian Polytechnic University No.1, Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. China ]
Lan Shen [ School of Information Science and Engineering Dalian Polytechnic University No.1, Qinggongyuan, Ganjingzi District, Dalian 116034, P. R. 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.8 No.4