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Predicting Goal-directed Attention Control Using Inverse-Reinforcement Learning
Understanding how goal states control behavior is a question ripe for in...
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Selective Particle Attention: Visual Feature-Based Attention in Deep Reinforcement Learning
The human brain uses selective attention to filter perceptual input so t...
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Decoding Brain Representations by Multimodal Learning of Neural Activity and Visual Features
This paper tackles the problem of learning brain-visual representations ...
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Predicting Goal-directed Human Attention Using Inverse Reinforcement Learning
Being able to predict human gaze behavior has obvious importance for beh...
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A Layered Architecture for Active Perception: Image Classification using Deep Reinforcement Learning
We propose a planning and perception mechanism for a robot (agent), that...
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Attention Based Pruning for Shift Networks
In many application domains such as computer vision, Convolutional Layer...
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Brain-Like Stochastic Search: A Research Challenge and Funding Opportunity
Brain-Like Stochastic Search (BLiSS) refers to this task: given a family...
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Learning to attend in a brain-inspired deep neural network
Recent machine learning models have shown that including attention as a component results in improved model accuracy and interpretability, despite the concept of attention in these approaches only loosely approximating the brain's attention mechanism. Here we extend this work by building a more brain-inspired deep network model of the primate ATTention Network (ATTNet) that learns to shift its attention so as to maximize the reward. Using deep reinforcement learning, ATTNet learned to shift its attention to the visual features of a target category in the context of a search task. ATTNet's dorsal layers also learned to prioritize these shifts of attention so as to maximize success of the ventral pathway classification and receive greater reward. Model behavior was tested against the fixations made by subjects searching images for the same cued category. Both subjects and ATTNet showed evidence for attention being preferentially directed to target goals, behaviorally measured as oculomotor guidance to targets. More fundamentally, ATTNet learned to shift its attention to target like objects and spatially route its visual inputs to accomplish the task. This work makes a step toward a better understanding of the role of attention in the brain and other computational systems.
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