Zobrazeno 1 - 10
of 1 999
pro vyhledávání: '"Tan, Chao"'
Magnetism and topology are two major areas of condensed matter physics. The combination of magnetism and topology gives rise to more novel physical effects, which have attracted strongly theoretical and experimental attention. Recently, the concept o
Externí odkaz:
http://arxiv.org/abs/2406.16603
We introduce Multivariate Multiscale Graph-based Dispersion Entropy (mvDEG), a novel, computationally efficient method for analyzing multivariate time series data in graph and complex network frameworks, and demonstrate its application in real-world
Externí odkaz:
http://arxiv.org/abs/2405.00518
Large Language Models (LLMs) have emerged as influential instruments within the realm of natural language processing; nevertheless, their capacity to handle multi-party conversations (MPCs) -- a scenario marked by the presence of multiple interlocuto
Externí odkaz:
http://arxiv.org/abs/2310.16301
Autor:
Gu, Jia-Chen, Tan, Chao-Hong, Chu, Caiyuan, Ling, Zhen-Hua, Tao, Chongyang, Liu, Quan, Liu, Cong
Modeling multi-party conversations (MPCs) with graph neural networks has been proven effective at capturing complicated and graphical information flows. However, existing methods rely heavily on the necessary addressee labels and can only be applied
Externí odkaz:
http://arxiv.org/abs/2305.12733
Diffusion models have emerged as the new state-of-the-art family of deep generative models, and their promising potentials for text generation have recently attracted increasing attention. Existing studies mostly adopt a single encoder architecture w
Externí odkaz:
http://arxiv.org/abs/2305.11517
Publikováno v:
Phys. Rev. B 108, 195427 (2023)
Within linear response theory, the absorptive part of highly anisotropic optical conductivities are analytically calculated for distinct tilts in two-dimensional (2D) tilted semi-Dirac bands (SDBs). The transverse optical conductivities always vanish
Externí odkaz:
http://arxiv.org/abs/2303.18155
We introduce a novel method, called Dispersion Entropy for Graph Signals, $DE_G$, as a powerful tool for analysing the irregularity of signals defined on graphs. We demonstrate the effectiveness of $DE_G$ in detecting changes in the dynamics of signa
Externí odkaz:
http://arxiv.org/abs/2303.18079
Autor:
Yan, Chang-Xu, Zhang, Furu, Tan, Chao-Yang, Chang, Hao-Ran, Zhou, Jianhui, Yao, Yugui, Guo, Hong
The over-tilting of type-II Dirac cones has led to various fascinating quantum phenomena. Here we find two anomalous acoustic plasmons (AAPs) are dictated by the distinct geometry of two-dimensional (2D) type-II Dirac cones, far beyond the convention
Externí odkaz:
http://arxiv.org/abs/2211.11266
Autor:
Hou, Jian-Tong, Yan, Chang-Xu, Tan, Chao-Yang, Li, Zhi-Qiang, Wang, Peng, Guo, Hong, Chang, Hao-Ran
Publikováno v:
Phys. Rev. B 108, 035407 (2023)
We report a unified theory based on linear response, for analyzing the longitudinal optical conductivity (LOC) of materials with tilted Dirac cones. Depending on the tilt parameter $t$, the Dirac electrons have four phases: untilted, type-I, type-II,
Externí odkaz:
http://arxiv.org/abs/2210.10410
Using a graph-based approach, we propose a multiscale permutation entropy to explore the complexity of multivariate time series over multiple time scales. This multivariate multiscale permutation entropy (MPEG) incorporates the interaction between ch
Externí odkaz:
http://arxiv.org/abs/2210.09030