Search Results for author: Juncheng Dong

Found 10 papers, 2 papers with code

Counterfactual Data Augmentation with Contrastive Learning

no code implementations7 Nov 2023 Ahmed Aloui, Juncheng Dong, Cat P. Le, Vahid Tarokh

To address this, we introduce a model-agnostic data augmentation method that imputes the counterfactual outcomes for a selected subset of individuals.

Contrastive Learning counterfactual +2

Robust Reinforcement Learning through Efficient Adversarial Herding

no code implementations12 Jun 2023 Juncheng Dong, Hao-Lun Hsu, Qitong Gao, Vahid Tarokh, Miroslav Pajic

In this work, we extend the two-player game by introducing an adversarial herd, which involves a group of adversaries, in order to address ($\textit{i}$) the difficulty of the inner optimization problem, and ($\textit{ii}$) the potential over pessimism caused by the selection of a candidate adversary set that may include unlikely scenarios.

reinforcement-learning Reinforcement Learning (RL)

Mode-Aware Continual Learning for Conditional Generative Adversarial Networks

no code implementations19 May 2023 Cat P. Le, Juncheng Dong, Ahmed Aloui, Vahid Tarokh

To this end, we introduce a new continual learning approach for conditional generative adversarial networks by leveraging a mode-affinity score specifically designed for generative modeling.

Continual Learning

PASTA: Pessimistic Assortment Optimization

no code implementations8 Feb 2023 Juncheng Dong, Weibin Mo, Zhengling Qi, Cong Shi, Ethan X. Fang, Vahid Tarokh

The objective is to use the offline dataset to find an optimal assortment.

Domain Adaptation via Rebalanced Sub-domain Alignment

no code implementations3 Feb 2023 Yiling Liu, Juncheng Dong, Ziyang Jiang, Ahmed Aloui, Keyu Li, Hunter Klein, Vahid Tarokh, David Carlson

To address this limitation, we propose a novel generalization bound that reweights source classification error by aligning source and target sub-domains.

Unsupervised Domain Adaptation

Transfer Learning for Individual Treatment Effect Estimation

no code implementations1 Oct 2022 Ahmed Aloui, Juncheng Dong, Cat P. Le, Vahid Tarokh

To this end, we theoretically assess the feasibility of transferring ITE knowledge and present a practical framework for efficient transfer.

Causal Inference counterfactual +1

Multi-Agent Adversarial Attacks for Multi-Channel Communications

no code implementations22 Jan 2022 Juncheng Dong, Suya Wu, Mohammadreza Sultani, Vahid Tarokh

In particular, by modeling the adversaries as learning agents, we show that the proposed MAAS is able to successfully choose the transmitted channel(s) and their respective allocated power(s) without any prior knowledge of the sender strategy.

Reinforcement Learning (RL)

Task Affinity with Maximum Bipartite Matching in Few-Shot Learning

1 code implementation ICLR 2022 Cat P. Le, Juncheng Dong, Mohammadreza Soltani, Vahid Tarokh

We propose an asymmetric affinity score for representing the complexity of utilizing the knowledge of one task for learning another one.

Few-Shot Learning

Fisher Task Distance and Its Application in Neural Architecture Search

1 code implementation23 Mar 2021 Cat P. Le, Mohammadreza Soltani, Juncheng Dong, Vahid Tarokh

Next, we construct an online neural architecture search framework using the Fisher task distance, in which we have access to the past learned tasks.

Neural Architecture Search Transfer Learning

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