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Ke Zhu

The University of Hong Kong - University of Hong Kong

SCHOLARLY PAPERS

6

DOWNLOADS

369

TOTAL CITATIONS

1

Scholarly Papers (6)

1.

Testing and Estimation of Change Point in Arma Model with Heavy-Tailed G-Garch Noises

Number of pages: 34 Posted: 07 Mar 2024
Qiang Bai, Shiqing Ling and Ke Zhu
Shanxi University of Finance and Economics, Hong Kong University of Science & Technology (HKUST) and The University of Hong Kong - University of Hong Kong
Downloads 150 (505,974)
Citation 1

Abstract:

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ARMA model, Change point, Heavy-tailed G-GARCH noises, Self-weighted LADE

2.

Big Portfolio Selection by Graph-Based Conditional Moments Method

Number of pages: 39 Posted: 20 Mar 2024
Shanghai University of Finance and Economics, The University of Hong Kong and The University of Hong Kong - University of Hong Kong
Downloads 79 (816,709)

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big data, Big portfolio selection, High-dimensional time series, machine learning

3.

Tensor double autoregressive model with application to heavy-tailed tensor time series data

Number of pages: 53 Posted: 21 Apr 2026
Hong Kong University of Science & Technology (HKUST), affiliation not provided to SSRN, University of Chicago and The University of Hong Kong - University of Hong Kong
Downloads 50 (1,332,057)

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Heavy-tailedness, Quasi-maximum likelihood estimation, Statistical inference, Tensor double autoregression, Tensor time series

4.

Inference for the Panel Arma--Garch Model When Both N And T Are Large

Number of pages: 36 Posted: 08 Oct 2024
Bing Su and Ke Zhu
The University of Hong Kong and The University of Hong Kong - University of Hong Kong
Downloads 48 (1,097,529)

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ARMA-GARCH specification, Asymptotic bias, Central limit theorem, Large dynamic panel, Linear-quadratic form

5.

Testing for the symmetry of innovation in multivariate time series models

Number of pages: 45 Posted: 20 Jan 2026
The University of Hong Kong, University of International Business and Economics, The University of Hong Kong and The University of Hong Kong - University of Hong Kong
Downloads 25 (1,448,301)

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Characteristic measure of symmetry, Consistent test, MultivariateGARCH model, Multivariate time series model, Testing for the symmetry of innovation

6.

Testing for second-order cross-sectional dependence and serial dependence in large dynamic panel models

Number of pages: 41 Posted: 06 May 2026
Zihao Pu, Bing Su and Ke Zhu
The University of Hong Kong, The University of Hong Kong and The University of Hong Kong - University of Hong Kong
Downloads 17 (1,548,648)

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Automatic portmanteau test, Large dynamic panel, Portmanteau test, Testing for cross-sectional dependence, Testing for serial dependence