IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Special Section on Large Scale Algorithms for Learning and Optimization
Transfer Matrix Method for Instantaneous Spike Rate Estimation
Kazuho WATANABEHiroyuki TANAKAKeiji MIURAMasato OKADA
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2009 年 E92.D 巻 7 号 p. 1362-1368

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抄録
The spike timings of neurons are irregular and are considered to be a one-dimensional point process. The Bayesian approach is generally used to estimate the time-dependent firing rate function from sequences of spike timings. It can also be used to estimate the firing rate from only a single sequence of spikes. However, the rate function has too many degrees of freedom in general, so approximation techniques are often used to carry out the Bayesian estimation. We applied the transfer matrix method, which efficiently computes the exact marginal distribution, to the estimation of the firing rate and developed an algorithm that enables the exact results to be obtained for the Bayesian framework. Using this estimation method, we investigated how the mismatch of the prior hyperparameter value affects the marginal distribution and the firing rate estimation.
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© 2009 The Institute of Electronics, Information and Communication Engineers
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