370 citations · 875 across the 27 of their papers we have counts for
10 papers · 1 filter
Testing for intrinsic multifractality in the global grain spot market indices: A multifractal detrended fluctuation analysis
Li Wang, Xing-Lu Gao, Wei-Xing Zhou
Grains account for more than 50% of the calories consumed by people worldwide, and military conflicts, pandemics, climate change, and soaring grain prices all have vital impacts on…
Dial-MAE: ConTextual Masked Auto-Encoder for Retrieval-based Dialogue Systems
Zhenpeng Su, Xing Wu, Wei Zhou +2
Dialogue response selection aims to select an appropriate response from several candidates based on a given user and system utterance history. Most existing works primarily focus o…
RASR2: The RWTH ASR Toolkit for Generic Sequence-to-sequence Speech Recognition
Wei Zhou, Eugen Beck, Simon Berger +2
Modern public ASR tools usually provide rich support for training various sequence-to-sequence (S2S) models, but rather simple support for decoding open-vocabulary scenarios only.…
Temporal rich club phenomenon and its formation mechanisms
Mu-Yao Li, Ying-Ting Zhang, Wei-Xing Zhou
The temporal rich club (TRC) phenomenon is widespread in real systems, forming a tight and continuous collection of the prominent nodes that control the system. However, there is s…
Visibility graph analysis of the grains and oilseeds indices
Hao-Ran Liu, Ming-Xia Li, Wei-Xing Zhou
The Grains and Oilseeds Index (GOI) and its sub-indices of wheat, maize, soyabeans, rice, and barley are daily price indexes reflect the price changes of the global spot markets of…
Tail dependence structure and extreme risk spillover effects between the international agricultural futures and spot markets
Yun-Shi Dai, Peng-Fei Dai, Wei-Xing Zhou
This paper combines the Copula-CoVaR approach with the ARMA-GARCH-skewed Student-t model to investigate the tail dependence structure and extreme risk spillover effects between the…
Spatiotemporal characteristics of agricultural food import shocks
Yin-Ting Zhang, Duc Khuong Nguyen, Wei-Xing Zhou
Ensuring food supply stability is key to food security for economies, and food imports become increasingly important to safeguard food supplies in economies with inadequate food pr…
Quantifying the status of economies in international crop trade networks: An correlation structure analysis of various node-ranking metrics
Yin-Ting Zhang, Wei-Xing Zhou
International food trade is a growing complement to gaps in domestic food supply and demand, but it is vulnerable to disruptions due to some unforeseen shocks. This paper assembles…
An optimized online filter stack spectrometer
Jia-xing Wen, Ge Ma, Ming-hai Yu +17
The spectrum of laser-plasma-generated X-rays is very important as it can characterize electron dynamics and also be useful for applications, and nowadays with the forthcoming high…
Emergent Electronic Kagome Lattice in Correlated Charge-Density-Wave State of 1T-TaS
Haoyu Dong, Peihan Sun, Le Lei +13
Quantum materials with tunable correlated and/or topological electronic states, such as the electronic Kagome lattice, provide an ideal platform to study the exotic quantum propert…