Search Results for author: Derui Zhu

Found 8 papers, 1 papers with code

PoLLMgraph: Unraveling Hallucinations in Large Language Models via State Transition Dynamics

no code implementations6 Apr 2024 Derui Zhu, Dingfan Chen, Qing Li, Zongxiong Chen, Lei Ma, Jens Grossklags, Mario Fritz

Despite tremendous advancements in large language models (LLMs) over recent years, a notably urgent challenge for their practical deployment is the phenomenon of hallucination, where the model fabricates facts and produces non-factual statements.

Benchmarking Hallucination

LUNA: A Model-Based Universal Analysis Framework for Large Language Models

no code implementations22 Oct 2023 Da Song, Xuan Xie, Jiayang Song, Derui Zhu, Yuheng Huang, Felix Juefei-Xu, Lei Ma

the trustworthiness perspective, is bound to and enriches the abstract model with semantics, which enables more detailed analysis applications for diverse purposes.

Data Forensics in Diffusion Models: A Systematic Analysis of Membership Privacy

no code implementations15 Feb 2023 Derui Zhu, Dingfan Chen, Jens Grossklags, Mario Fritz

In recent years, diffusion models have achieved tremendous success in the field of image generation, becoming the stateof-the-art technology for AI-based image processing applications.

Image Generation

Neural Episodic Control with State Abstraction

no code implementations27 Jan 2023 Zhuo Li, Derui Zhu, Yujing Hu, Xiaofei Xie, Lei Ma, Yan Zheng, Yan Song, Yingfeng Chen, Jianjun Zhao

Generally, episodic control-based approaches are solutions that leverage highly-rewarded past experiences to improve sample efficiency of DRL algorithms.

OpenAI Gym

Towards Understanding Quality Challenges of the Federated Learning for Neural Networks: A First Look from the Lens of Robustness

1 code implementation5 Jan 2022 Amin Eslami Abyane, Derui Zhu, Roberto Souza, Lei Ma, Hadi Hemmati

Therefore, to better understand the current quality status and challenges of these SOTA FL techniques in the presence of attacks and faults, we perform a large-scale empirical study to investigate the SOTA FL's quality from multiple angles of attacks, simulated faults (via mutation operators), and aggregation (defense) methods.

Data Poisoning Federated Learning +2

Neural Hidden Markov Model for Machine Translation

no code implementations ACL 2018 Weiyue Wang, Derui Zhu, Tamer Alkhouli, Zixuan Gan, Hermann Ney

Attention-based neural machine translation (NMT) models selectively focus on specific source positions to produce a translation, which brings significant improvements over pure encoder-decoder sequence-to-sequence models.

Machine Translation NMT +1

Hybrid Neural Network Alignment and Lexicon Model in Direct HMM for Statistical Machine Translation

no code implementations ACL 2017 Weiyue Wang, Tamer Alkhouli, Derui Zhu, Hermann Ney

Recently, the neural machine translation systems showed their promising performance and surpassed the phrase-based systems for most translation tasks.

Machine Translation Translation +1

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