Abstract
Relational modelling classically consider sparse and discrete data. Measures of influence computed pairwise between temporal sources naturally give rise to dense continuous-valued matrices, for instance p-values from Granger causality. Due to asymmetry or lack of positive definiteness they are not naturally suited for kernel K-means. We propose a generative Bayesian model for dense matrices which generalize kernel K-means to consider off-diagonal interactions in matrices of interactions, and demonstrate its ability to detect structure on both artificial data and two real data sets.
| Original language | English |
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| Title of host publication | 2012 IEEE International Workshop on Machine Learning for Signal Processing (MLSP) |
| Number of pages | 6 |
| Place of Publication | 978-1-4673-1025-3 |
| Publisher | IEEE |
| Publication date | 2012 |
| ISBN (Print) | 978-1-4673-1024-6 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 2012 IEEE International Workshop on Machine Learning for Signal Processing - Santander, Spain Duration: 23 Oct 2012 → 26 Oct 2012 Conference number: 22 https://ieeexplore.ieee.org/xpl/conhome/6335571/proceeding |
Conference
| Conference | 2012 IEEE International Workshop on Machine Learning for Signal Processing |
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| Number | 22 |
| Country/Territory | Spain |
| City | Santander |
| Period | 23/10/2012 → 26/10/2012 |
| Internet address |
| Series | Machine Learning for Signal Processing |
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| ISSN | 1551-2541 |
Keywords
- Relational Modelling
- Non-parametrics
- Infinite Relational Model
- Granger Causality