سال انتشار:

2020

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عنوان انگلیسی مقاله:

Lessons from reinforcement learning for biological representations of space

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ترجمه فارسی عنوان مقاله:

درسهایی از یادگیری تقویت برای نمایش های بیولوژیکی فضا

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منبع:

Sciencedirect - Elsevier - Vision Research, 174 (2020) 79-93. doi:10.1016/j.visres.2020.05.009

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نویسنده:

Alex Muryya, N. Siddharthb, Nantas Nardellib, Andrew Glennerstera,⁎, Philip H.S. Torrb

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چکیده انگلیسی:

Neuroscientists postulate 3D representations in the brain in a variety of different coordinate frames (e.g. ‘headcentred’, ‘hand-centred’ and ‘world-based’). Recent advances in reinforcement learning demonstrate a quite different approach that may provide a more promising model for biological representations underlying spatial perception and navigation. In this paper, we focus on reinforcement learning methods that reward an agent for arriving at a target image without any attempt to build up a 3D ‘map’. We test the ability of this type of representation to support geometrically consistent spatial tasks such as interpolating between learned locations using decoding of feature vectors. We introduce a hand-crafted representation that has, by design, a high degree of geometric consistency and demonstrate that, in this case, information about the persistence of features as the camera translates (e.g. distant features persist) can improve performance on the geometric tasks. These examples avoid Cartesian (in this case, 2D) representations of space. Non-Cartesian, learned representations provide an important stimulus in neuroscience to the search for alternatives to a ‘cognitive map’.
Keywords: Deep Reinforcement Learning | 3D spatial representation | Moving observer | Navigation | View-based | Parallax

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قیمت: رایگان

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توضیحات اضافی:

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