1 code implementation • 28 Mar 2023 • Alexander C. Li, Mihir Prabhudesai, Shivam Duggal, Ellis Brown, Deepak Pathak
Our generative approach to classification, which we call Diffusion Classifier, attains strong results on a variety of benchmarks and outperforms alternative methods of extracting knowledge from diffusion models.
1 code implementation • 27 Feb 2023 • Alexander C. Li, Ellis Brown, Alexei A. Efros, Deepak Pathak
Modern vision models typically rely on fine-tuning general-purpose models pre-trained on large, static datasets.
1 code implementation • 29 Sep 2022 • Alexander C. Li, Alexei A. Efros, Deepak Pathak
We empirically analyze these non-contrastive methods and find that SimSiam is extraordinarily sensitive to dataset and model size.
1 code implementation • NeurIPS 2021 • Alexander C. Li, Deepak Pathak
We propose a simple architecture for deep reinforcement learning by embedding inputs into a learned Fourier basis and show that it improves the sample efficiency of both state-based and image-based RL.
no code implementations • NeurIPS 2020 • Alexander C. Li, Lerrel Pinto, Pieter Abbeel
Compared to standard relabeling techniques, Generalized Hindsight provides a substantially more efficient reuse of samples, which we empirically demonstrate on a suite of multi-task navigation and manipulation tasks.
no code implementations • 17 Oct 2019 • Murtaza Dalal, Alexander C. Li, Rohan Taori
Autoregressive (AR) models have become a popular tool for unsupervised learning, achieving state-of-the-art log likelihood estimates.
no code implementations • ICLR 2020 • Alexander C. Li, Carlos Florensa, Ignasi Clavera, Pieter Abbeel
Hierarchical reinforcement learning is a promising approach to tackle long-horizon decision-making problems with sparse rewards.