3 papers
physics.app-ph2025
A Beam-Steering Reflectarray Antenna with Arbitrary Linear-Polarization Reconfiguration
Changhao Liu, Songlin Zhou, Fan Yang +2
This work presents a beam-steering reflectarray antenna that achieves arbitrary linear polarization (LP) reconfiguration. This antenna employs a dual-circular polarization (CP) rec…
cs.CL2025
Baichuan 2: Open Large-scale Language Models
Aiyuan Yang, Bin Xiao, Bingning Wang +52
Large language models (LLMs) have demonstrated remarkable performance on a variety of natural language tasks based on just a few examples of natural language instructions, reducing…
q-fin.RM2024
Portfolio credit risk with Archimedean copulas: asymptotic analysis and efficient simulation
Hengxin Cui, Ken Seng Tan, Fan Yang
In this paper, we study large losses arising from defaults of a credit portfolio. We assume that the portfolio dependence structure is modelled by the Archimedean copula family as…