Publications (53)
Field theory of non-Hermitian disordered systems
Ze Chen, Kohei Kawabata, Anish Kulkarni +1
The interplay between non-Hermiticity and disorder gives rise to unique universality classes of Anderson transitions. Here, we develop a field-theoretical description of non-Hermit…
Optimum performance investigation of LYSO crystal pixels: A comparison between GATE simulation and experimental data
Ze Chen, Zheng-Guo Hu, Jin-Da Chen +6
Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling o…
Enhancing Model Performance in Multilingual Information Retrieval with Comprehensive Data Engineering Techniques
Qi Zhang, Zijian Yang, Yilun Huang +6
In this paper, we present our solution to the Multilingual Information Retrieval Across a Continuum of Languages (MIRACL) challenge of WSDM CUP 2023\footnote{https://project-miracl…
Robbed withdrawal
Ze Chen, Ruichao Jiang, Javad Tavakoli +1
In this article we show that Theorem 2 in Lie et al. (2023) is incorrect. Since Wombat Exchange, a decentralized exchange, is built upon Lie et al. (2023) and Theorem 2 is fundamen…
OPDAI at SemEval-2024 Task 6: Small LLMs can Accelerate Hallucination Detection with Weakly Supervised Data
Chengcheng Wei, Ze Chen, Songtan Fang +2
This paper mainly describes a unified system for hallucination detection of LLMs, which wins the second prize in the model-agnostic track of the SemEval-2024 Task 6, and also achie…
OPD@NL4Opt: An ensemble approach for the NER task of the optimization problem
Kangxu Wang, Ze Chen, Jiewen Zheng
In this paper, we present an ensemble approach for the NL4Opt competition subtask 1(NER task). For this task, we first fine tune the pretrained language models based on the competi…