Sparse connectivity for MAP inference in linear models using sister mitral cells
Sparse connectivity for MAP inference in linear models using sister mitral cells
复制标题
使用姐妹二尖瓣细胞在线性模型中进行 MAP 推断的稀疏连接
DOI:
10.1101/2021.06.28.450144
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Tootoonian S
中科院分区:
文献类型:
--
作者:
Tootoonian S
Sensory processing is hard because the variables of interest are encoded in spike trains in a relatively complex way. A major goal in studies of sensory processing is to understand how the brain extracts those variables. Here we revisit a common encoding model in which variables are encoded linearly. Although there are typically more variables than neurons, this problem is still solvable because only a small number of variables appear at any one time (sparse prior). However, previous solutions require all-to-all connectivity, inconsistent with the sparse connectivity seen in the brain. Here we propose an algorithm that provably reaches the MAP (maximuma posteriori) inference solution, but does so using sparse connectivity. Our algorithm is inspired by the circuit of the mouse olfactory bulb, but our approach is general enough to apply to other modalities. In addition, it should be possible to extend it to nonlinear encoding models.
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影响因子:
11.1
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发表时间:
2014-03-21
期刊:
Science (New York, N.Y.)
影响因子:
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DOI:
10.1523/jneurosci.0303-18.2018
发表时间:
2018-08-15
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
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通讯作者:
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