Search Results for author: Sebastian Seung

Found 8 papers, 0 papers with code

Stretched sinograms for limited-angle tomographic reconstruction with neural networks

no code implementations16 Jun 2023 Kyle Luther, Sebastian Seung

We compare our method to using a U-Net to directly reconstruct the unstretched tilt views and show that this simple stretching procedure leads to significantly better reconstructions.

Online approximate factorization of a kernel matrix by a Hebbian neural network

no code implementations29 Sep 2021 Kyle Luther, Sebastian Seung

Minimizing this upper bound leads to a minimax optimization, which can be solved via stochastic gradient descent-ascent.

QXplore: Q-Learning Exploration by Maximizing Temporal Difference Error

no code implementations25 Sep 2019 Riley Simmons-Edler, Ben Eisner, Daniel Yang, Anthony Bisulco, Eric Mitchell, Sebastian Seung, Daniel Lee

We implement the objective with an adversarial Q-learning method in which Q and Qx are the action-value functions for extrinsic and secondary rewards, respectively.

Continuous Control Q-Learning +2

Reward Prediction Error as an Exploration Objective in Deep RL

no code implementations19 Jun 2019 Riley Simmons-Edler, Ben Eisner, Daniel Yang, Anthony Bisulco, Eric Mitchell, Sebastian Seung, Daniel Lee

We then propose a deep reinforcement learning method, QXplore, which exploits the temporal difference error of a Q-function to solve hard exploration tasks in high-dimensional MDPs.

Atari Games Continuous Control +4

Q-Learning for Continuous Actions with Cross-Entropy Guided Policies

no code implementations25 Mar 2019 Riley Simmons-Edler, Ben Eisner, Eric Mitchell, Sebastian Seung, Daniel Lee

CGP aims to combine the stability and performance of iterative sampling policies with the low computational cost of a policy network.

Q-Learning Reinforcement Learning (RL)

Maximin affinity learning of image segmentation

no code implementations NeurIPS 2009 Kevin Briggman, Winfried Denk, Sebastian Seung, Moritz N. Helmstaedter, Srinivas C. Turaga

We present the first machine learning algorithm for training a classifier to produce affinity graphs that are good in the sense of producing segmentations that directly minimize the Rand index, a well known segmentation performance measure.

BIG-bench Machine Learning graph partitioning +3

Natural Image Denoising with Convolutional Networks

no code implementations NeurIPS 2008 Viren Jain, Sebastian Seung

We present an approach to low-level vision that combines two main ideas: the use of convolutional networks as an image processing architecture and an unsupervised learning procedure that synthesizes training samples from specific noise models.

Image Denoising

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