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Luyang Liu

5 accepted papers

2025

Deliberation in Latent Space via Differentiable Cache Augmentation

ICML 2025poster

Techniques enabling large language models (LLMs) to "think more" by generating and attending to intermediate reasoning steps have shown promise in solving complex problems. However, the standard approaches generate sequences of discrete tokens immediately before responding, and so they can incur sig…

Cited by 3SourcePDFScholar
2025

RLPF: Reinforcement Learning from Prediction Feedback for User Summarization with LLMs

AAAI 2025technical

LLM-powered personalization agent systems employ Large Language Models (LLMs) to predict users’ behavior from their past activities. However, their effectiveness often hinges on the ability to effectively leverage extensive, long user historical data due to its inherent noise and length of such data…

Cited by 2SourcePDFScholar
2024

Heterogeneous LoRA for Federated Fine-tuning of On-Device Foundation Models

EMNLP 2024main

Foundation models (FMs) adapt surprisingly well to downstream tasks with fine-tuning. However, their colossal parameter space prohibits their training on resource-constrained edge-devices. For federated fine-tuning, we need to consider the smaller FMs of few billion parameters at most, namely on-dev…

Cited by 57SourcePDFScholar
2022

Auditing Privacy Defenses in Federated Learning via Generative Gradient Leakage

CVPR 2022poster

Federated Learning (FL) framework brings privacy benefits to distributed learning systems by allowing multiple clients to participate in a learning task under the coordination of a central server without exchanging their private data. However, recent studies have revealed that private information ca…

Cited by 146PDFcodeScholar
2022

FedRolex: Model-Heterogeneous Federated Learning with Rolling Sub-Model Extraction

NeurIPS 2022accept

Most cross-device federated learning (FL) studies focus on the model-homogeneous setting where the global server model and local client models are identical. However, such constraint not only excludes low-end clients who would otherwise make unique contributions to model training but also restrains…