A cognitive stochastic machine based on Bayesian inference: a behavioral analysis

Raphael Frisch 1, 2 Marvin Faix 2 Emmanuel Mazer 2 Laurent Fesquet 1 Augustin Lux 2
2 PERVASIVE - Interaction située avec les objets et environnements intelligents
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble, Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology, UGA - Université Grenoble Alpes
Abstract : Bayesian models and stochastic computing form a promising paradigm for non-conventional, bio-inspired computation architectures. In particular, they are able to handle uncertainty and promise low power consumption. In this paper we study the application of such an architecture, the Sliced Bayesian Machine (SlicedBM) to a real-world problem, Sound Source Localization (SSL) for robots. We present an analysis of the quality of results and of computing time according to several parameters: sensor precision, result threshold, internal word length. Furthermore, we show that sensor data precision does not heavily influence the computation. On the opposite, the precision of the probability values plays an important role on result quality. This parameter also determines the circuit size. We also show that the higher the re-sampling threshold (RT), the better the distribution computed by the machine. Our results make it possible to choose optimal design parameters for a circuit along several trade-offs, and according to a given sensor fusion application.
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Contributor : Raphael Frisch <>
Submitted on : Tuesday, September 4, 2018 - 4:01:11 PM
Last modification on : Wednesday, February 13, 2019 - 10:00:03 AM
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  • HAL Id : hal-01867789, version 1


Raphael Frisch, Marvin Faix, Emmanuel Mazer, Laurent Fesquet, Augustin Lux. A cognitive stochastic machine based on Bayesian inference: a behavioral analysis. ICCI*CC 2018 - 17th IEEE International Conference on Cognitive Informatics and Cognitive Computing, Jul 2018, Berkeley, United States. pp.1-8. ⟨hal-01867789⟩



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