With a great deal of digitized textual information now available on the internet, it is almost impossible for people to assimilate all the information timely. Therefore, the technologies of topic detection and tracking are used for constructing news topics from news stories in order to bring convenience to people. However, traditional topic detection methods are not always so effective in detecting emerging hot news topics in a short period of time, and most topic detection methods use single-pass clustering algorithm which is with low accuracy and very sensitive to the input sequence of news documents. In order to improve clustering accuracy, we utilize a temporal distance factor to segment timeline into equal parts and propose a novel two-times single-pass clustering algorithm to deal with news stories in each part of timeline separately. Moreover, the aging theory is combined with our approach to build life-span model of topics from which we can obtain variation trend of hotness value of topics. The results of experiments show that our approach is effective and the life circle model of topics established by our method can conform to reality well.
목차
Abstract 1. Introduction 2. Related Work 2.1. Topic Detection and Tracking 2.2. The Application of Aging Theory 3. Hot Topic Detection and Tracking 3.1. Preprocessing and Text Representation 3.2. A Two-Times Single-Pass Clustering Algorithm 3.3. The Definition of Aging Theory 3.4. Hot Topic Detection and Life-Span Modeling Algorithm 4. Experiments and Results Analysis 4.1. Dataset Description 4.2. Evaluation Metrics 4.3. The Selection of Time Distance 4.4. Topic Detection 4.5. Life-Span Modeling of Topics 5. Conclusions and Future Work References
키워드
hot topic detectiontwo-times clusteringshort termaging theorysingle-pass
저자
Ruiguo Yu [ School of Computer Science and Technology, Tianjin University, Tianjin, P.R. China, Tianjin Key Laboratory of Cognitive Computing and Application, Tianjin, P.R. China ]
Xiaodong Xie [ School of Computer Science and Technology, Tianjin University, Tianjin, P.R. China, Tianjin Key Laboratory of Cognitive Computing and Application, Tianjin, P.R. China ]
Yongxing Li [ School of Computer Science and Technology, Tianjin University, Tianjin, P.R. China, Tianjin Key Laboratory of Cognitive Computing and Application, Tianjin, P.R. China ]
Mankun Zhao [ School of Computer Science and Technology, Tianjin University, Tianjin, P.R. China, Tianjin Key Laboratory of Cognitive Computing and Application, Tianjin, P.R. China ]
Xuyuan Dong [ Information and Network Center, Tianjin University, Tianjin, P.R. China ]
Corresponding author
Muwen He [ Information and Network Center, Tianjin University, Tianjin, P.R. China ]
Peng Chang [ Information and Network Center, Tianjin University, Tianjin, P.R. China ]
Zan Wang [ School of Computer and Software, Tianjin University, Tianjin, P.R. China ]
보안공학연구지원센터(IJHIT) [Science & Engineering Research Support Center, Republic of Korea(IJHIT)]
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 Hybrid Information Technology
간기
격월간
pISSN
1738-9968
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Hybrid Information Technology Vol.9 No.2