Search Results for author: Pu Yang

Found 5 papers, 2 papers with code

L2SR: Learning to Sample and Reconstruct for Accelerated MRI via Reinforcement Learning

1 code implementation5 Dec 2022 Pu Yang, Bin Dong

In this paper, we propose an alternating training framework for jointly learning a good pair of samplers and reconstructors via deep reinforcement learning (RL).

Reinforcement Learning (RL)

Climate uncertainty impacts on optimal mitigation pathways and social cost of carbon

1 code implementation18 Apr 2023 Christopher J. Smith, Alaa Al Khourdajie, Pu Yang, Doris Folini

CO2 emissions trajectories resulting from the optimal level of emissions abatement in all pathways are also sensitive to climate uncertainty, with 2050 emissions ranging from -12 to +14 GtCO2/yr in the 1. 5C scenario.

Deep Multi-Modal Sets

no code implementations3 Mar 2020 Austin Reiter, Menglin Jia, Pu Yang, Ser-Nam Lim

Most deep learning-based methods rely on a late fusion technique whereby multiple feature types are encoded and concatenated and then a multi layer perceptron (MLP) combines the fused embedding to make predictions.

A frequency domain analysis of gradient-based adversarial examples

no code implementations1 Jan 2021 Bochen Lv, Pu Yang, Zehao Wang, Zhanxing Zhu

And the log-spectrum difference of the adversarial examples and clean image is more concentrated in the high-frequency part than the low-frequency part.

A Tale of Tails: Model Collapse as a Change of Scaling Laws

no code implementations10 Feb 2024 Elvis Dohmatob, Yunzhen Feng, Pu Yang, Francois Charton, Julia Kempe

We discover a wide range of decay phenomena, analyzing loss of scaling, shifted scaling with number of generations, the ''un-learning" of skills, and grokking when mixing human and synthesized data.

Language Modelling Large Language Model +1

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