Winning the Lottery With Neural Connectivity Constraints: Faster Learning Across Cognitive Tasks With Spatially Constrained Sparse RNNs
Winning the Lottery With Neural Connectivity Constraints: Faster Learning Across Cognitive Tasks With Spatially Constrained Sparse RNNs
复制标题
利用神经连接约束赢得彩票:利用空间约束的稀疏 RNN 加快跨认知任务的学习速度
DOI:
10.1162/neco_a_01613
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发表时间:
2023
影响因子:
2.9
通讯作者:
Fiete, Ila R.
中科院分区:
文献类型:
--
作者:
Khona, Mikail;Chandra, Sarthak;Ma, Joy J.;Fiete, Ila R.
Recurrent neural networks (RNNs) are often used to model circuits in the brain and can solve a variety of difficult computational problems requiring memory, error correction, or selection (Hopfield, ; Maass et al., ; Maass, ). However, fully connected RNNs contrast structurally with their biological counterparts, which are extremely sparse (about 0.1%). Motivated by the neocortex, where neural connectivity is constrained by physical distance along cortical sheets and other synaptic wiring costs, we introduce locality masked RNNs (LM-RNNs) that use task-agnostic predetermined graphs with sparsity as low as 4%. We study LM-RNNs in a multitask learning setting relevant to cognitive systems neuroscience with a commonly used set of tasks,20-Cog-tasks(Yang et al., ). We show through reductio ad absurdum that20-Cog-taskscan be solved by a small pool of separated autapses that we can mechanistically analyze and understand. Thus, these tasks fall short of the goal of inducing complex recurrent dynamics and modular structure in RNNs. We next contribute a new cognitive multitask battery,Mod-Cog, consisting of up to 132 tasks that expands by about seven-fold the number of tasks and task complexity of20-Cog-tasks. Importantly, while autapses can solve the simple20-Cog-tasks, the expanded task set requires richer neural architectures and continuous attractor dynamics. On these tasks, we show that LM-RNNs with an optimal sparsity result in faster training and better data efficiency than fully connected networks.
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影响因子:
4.3
作者:
Klukas, Mirko;Lewis, Marcus;Fiete, Ila
通讯作者:
Fiete, Ila
DOI:
10.1523/jneurosci.0865-23.2023
发表时间:
2023
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Irani,Martín;Alderson,ThomasH
通讯作者:
Alderson,ThomasH
DOI:
--
发表时间:
2020-06
期刊:
ArXiv
影响因子:
--
作者:
Hidenori Tanaka;D. Kunin;Daniel L. K. Yamins;S. Ganguli
通讯作者:
Hidenori Tanaka;D. Kunin;Daniel L. K. Yamins;S. Ganguli
DOI:
--
发表时间:
2020
期刊:
--
影响因子:
--
作者:
Lea Duncker;Laura N. Driscoll;K. Shenoy;M. Sahani;David Sussillo
通讯作者:
Lea Duncker;Laura N. Driscoll;K. Shenoy;M. Sahani;David Sussillo
DOI:
10.1101/2020.07.09.185116
发表时间:
2020
期刊:
bioRxiv
影响因子:
--
作者:
Hyodong Lee;Eshed Margalit;K. Jozwik;M. Cohen;N. Kanwisher;Daniel L. K. Yamins;J. DiCarlo
通讯作者:
J. DiCarlo