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Qianli Shen

8 accepted papers

2026

BOTS: A Unified Framework for Bayesian Online Task Selection in LLM Reinforcement Finetuning

ICLR 2026poster

Reinforcement finetuning (RFT) is a key technique for aligning Large Language Models (LLMs) with human preferences and enhancing reasoning, yet its effectiveness is highly sensitive to which tasks are explored during training. Uniform task sampling is inefficient, wasting computation on tasks that a…

Cited by 0SourceScholar
2025

Diversity as a Reward: Fine-Tuning LLMs on a Mixture of Domain-Undetermined Data

NeurIPS 2025poster

Fine-tuning large language models (LLMs) using diverse datasets is crucial for enhancing their overall performance across various domains. In practical scenarios, existing methods based on modeling the mixture proportions of data composition often struggle with data whose domain labels are missing,…

Cited by 0SourcecodeScholar
2024

Memory-Efficient Gradient Unrolling for Large-Scale Bi-level Optimization

NeurIPS 2024poster

Bi-level optimizaiton (BO) has become a fundamental mathematical framework for addressing hierarchical machine learning problems. As deep learning models continue to grow in size, the demand for scalable bi-level optimization has become increasingly critical. Traditional gradient-based bi-level opti…

2024

The Stronger the Diffusion Model, the Easier the Backdoor: Data Poisoning to Induce Copyright BreachesWithout Adjusting Finetuning Pipeline

ICML 2024oral

The commercialization of text-to-image diffusion models (DMs) brings forth potential copyright concerns. Despite numerous attempts to protect DMs from copyright issues, the vulnerabilities of these solutions are underexplored. In this study, we formalized the Copyright Infringement Attack on generat…

Cited by 25SourcePDFScholar
2024

VA3: Virtually Assured Amplification Attack on Probabilistic Copyright Protection for Text-to-Image Generative Models

CVPR 2024highlight

The booming use of text-to-image generative models has raised concerns about their high risk of producing copyright-infringing content. While probabilistic copyright protection methods provide a probabilistic guarantee against such infringement in this paper we introduce Virtually Assured Amplificat…

2023

GFlowOut: Dropout with Generative Flow Networks

ICML 2023poster

Bayesian inference offers principled tools to tackle many critical problems with modern neural networks such as poor calibration and generalization, and data inefficiency. However, scaling Bayesian inference to large architectures is challenging and requires restrictive approximations. Monte Carlo D…

Cited by 24SourcePDFScholar
2023

PICProp: Physics-Informed Confidence Propagation for Uncertainty Quantification

NeurIPS 2023poster

Standard approaches for uncertainty quantification in deep learning and physics-informed learning have persistent limitations. Indicatively, strong assumptions regarding the data likelihood are required, the performance highly depends on the selection of priors, and the posterior can be sampled onl…

2020

Deep Reinforcement Learning with Robust and Smooth Policy

ICML 2020poster

Deep reinforcement learning (RL) has achieved great empirical successes in various domains. However, the large search space of neural networks requires a large amount of data, which makes the current RL algorithms not sample efficient. Motivated by the fact that many environments with continuous sta…

Cited by 102SourcePDFScholar