Bayesian clustering by dynamics

被引:111
作者
Ramoni, M [1 ]
Sebastiani, P
Cohen, P
机构
[1] Harvard Univ, Sch Med, Childrens Hosp, Informat Program, Boston, MA 02115 USA
[2] Univ Massachusetts, Dept Math & Stat, Amherst, MA 01003 USA
[3] Univ Massachusetts, Dept Comp Sci, Amherst, MA 01003 USA
关键词
Bayesian learning; clustering; time series; Markov chains; heuristic search; entropy;
D O I
10.1023/A:1013635829250
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
This paper introduces a Bayesian method for clustering dynamic processes. The method models dynamics as Markov chains and then applies an agglomerative clustering procedure to discover the most probable set of clusters capturing different dynamics. To increase efficiency, the method uses an entropy-based heuristic search strategy. A controlled experiment suggests that the method is very accurate when applied to artificial time series in a broad range of conditions and, when applied to clustering sensor data from mobile robots, it produces clusters that are meaningful in the domain of application.
引用
收藏
页码:91 / 121
页数:31
相关论文
共 20 条
[1]  
Cheeseman P.C., 1996, ADV KNOWLEDGE DISCOV, V180, P153, DOI https://doi.org/10.5555/257938.257954
[2]  
COOPER GF, 1992, MACH LEARN, V9, P309, DOI 10.1007/BF00994110
[3]  
Firoiu L, 1999, LECT NOTES COMPUT SC, V1642, P99
[4]   A discriminative framework for detecting remote protein homologies [J].
Jaakkola, T ;
Diekhans, M ;
Haussler, D .
JOURNAL OF COMPUTATIONAL BIOLOGY, 2000, 7 (1-2) :95-114
[5]   AN INVARIANT FORM FOR THE PRIOR PROBABILITY IN ESTIMATION PROBLEMS [J].
JEFFREYS, H .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1946, 186 (1007) :453-461
[6]   Models of molecular evolution and phylogeny [J].
Liò, P ;
Goldman, N .
GENOME RESEARCH, 1998, 8 (12) :1233-1244
[7]  
Macdonald I. L., 1997, Hidden Markov and other models for discrete-valued time series
[8]  
Oates T., 1999, P 5 ACM SIGKDD INT C, P322
[9]  
Poulsen C.S., 1990, International Journal of Research in Marketing, V7, P5
[10]   A TUTORIAL ON HIDDEN MARKOV-MODELS AND SELECTED APPLICATIONS IN SPEECH RECOGNITION [J].
RABINER, LR .
PROCEEDINGS OF THE IEEE, 1989, 77 (02) :257-286