Abstract
Bayesian networks typically require thousands of probability para-meters for their specification, many of which are bound to be inaccurate. Know-ledge of the direction of change in an output probability of a network occasioned by changes in one or more of its parameters, i.e. the qualitative effect of parameter changes, has been shown to be useful both for parameter tuning and in pre-processing for inference in credal networks. In this paper we identify classes of parameter for which the qualitative effect on a given output of interest can be identified based upon graphical considerations.
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Notes
- 1.
Note that the parameters of the local distributions that are in \(\mathscr {B}\) but not in \({\mathscr {B}}_q\) do not affect the output of interest in any way.
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Acknowledgements
This research was supported by the Netherlands Organisation for Scientific Research (NWO).
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Bolt, J.H., Renooij, S. (2017). Structure-Based Categorisation of Bayesian Network Parameters. In: Antonucci, A., Cholvy, L., Papini, O. (eds) Symbolic and Quantitative Approaches to Reasoning with Uncertainty. ECSQARU 2017. Lecture Notes in Computer Science(), vol 10369. Springer, Cham. https://doi.org/10.1007/978-3-319-61581-3_8
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DOI: https://doi.org/10.1007/978-3-319-61581-3_8
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