Abstract
This paper considers a discrete-time sequential latent model for point pattern data, specifically a hidden Markov model (HMM) where each observation is an instantiation of a random finite set (RFS). This so-called RFS-HMM is worthy of investigation since point pattern data are ubiquitous in artificial intelligence and data science. We address the three basic problems typically encountered in such a sequential latent model, namely likelihood computation, hidden state inference, and parameter estimation. Moreover, we develop algorithms for solving these problems including forward-backward smoothing for likelihood computation and hidden state inference, and expectation-maximisation for parameter estimation. Simulation studies are used to demonstrate key properties of RFS-HMM, whilst real data in the domain of human dynamics are used to demonstrate its applicability.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 2017 International Conference on Data Science and Advanced Analytics, DSAA 2017 |
| Subtitle of host publication | Tokyo, Japan 19-21 October 2017 |
| Editors | Takashi Washio, Joao Gama , Ying Li , Rajesh Parekh , Huan Liu , Albert Bifet , Richard D. De Veaux |
| Place of Publication | Piscataway NJ USA |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Pages | 252-261 |
| Number of pages | 10 |
| ISBN (Electronic) | 9781509050048 |
| ISBN (Print) | 9781509050055 |
| DOIs | |
| Publication status | Published - 2017 |
| Event | IEEE International Conference on Data Science and Advanced Analytics 2017 - Tokyo, Japan Duration: 19 Oct 2017 → 21 Oct 2017 Conference number: 4th http://www.dslab.it.aoyama.ac.jp/dsaa2017/ https://ieeexplore.ieee.org/xpl/conhome/8255765/proceeding (Proceedings) |
Conference
| Conference | IEEE International Conference on Data Science and Advanced Analytics 2017 |
|---|---|
| Abbreviated title | DSAA 2017 |
| Country/Territory | Japan |
| City | Tokyo |
| Period | 19/10/17 → 21/10/17 |
| Internet address |
Keywords
- Discrete states
- Hidden Markov models
- Point pattern data
- Point processes
- Random finite sets
- Sequential models
- Set-valued data
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