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Nitish Srivastava

4 accepted papers

2021

Uncertainty Weighted Actor-Critic for Offline Reinforcement Learning

ICML 2021spotlight

Offline Reinforcement Learning promises to learn effective policies from previously-collected, static datasets without the need for exploration. However, existing Q-learning and actor-critic based off-policy RL algorithms fail when bootstrapping from out-of-distribution (OOD) actions or states. We h…

2021

Unconstrained Scene Generation With Locally Conditioned Radiance Fields

ICCV 2021poster

We tackle the challenge of learning a distribution over complex, realistic, indoor scenes. In this paper, we introduce Generative Scene Networks (GSN), which learns to decompose scenes into a collection of many local radiance fields that can be rendered from a free moving camera. Our model can be us…

Cited by 160PDFcodeScholar
2020

Capsules with Inverted Dot-Product Attention Routing

ICLR 2020poster

We introduce a new routing algorithm for capsule networks, in which a child capsule is routed to a parent based only on agreement between the parent's state and the child's vote. The new mechanism 1) designs routing via inverted dot-product attention; 2) imposes Layer Normalization as normalization…

Cited by 115SourceScholar
2015

Unsupervised Learning of Video Representations using LSTMs

ICML 2015poster

We use Long Short Term Memory (LSTM) networks to learn representations of video sequences. Our model uses an encoder LSTM to map an input sequence into a fixed length representation. This representation is decoded using single or multiple decoder LSTMs to perform different tasks, such as reconstruct…