CHEONG Siew Ann

Appointment: Associate Professor
Assistant Chair (Academic), School of Physical and Mathematical Sciences (SPMS)

Research topics:

• Computational physics
• Complex system dynamics
• Bioinformatics

For more information, visit webpage

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1 to 10 of 85 Results

Data-Driven Approach to Understanding Complex Urban Phe-nomena: A Preliminary Study on the Gentrification of H Street NE in Washington DC Jul 9, 2024 Cheong, Siew Ann, 2024, "Data-Driven Approach to Understanding Complex Urban Phe-nomena: A Preliminary Study on the Gentrification of H Street NE in Washington DC", https://doi.org/10.21979/N9/N9F5ZU, DR-NTU (Data), V1 Python scripts and secondary data sets used in our study of the gentrification of H Street NE in Washington DC.
Indicator from the graph Laplacian of stock market time series cross sections can precisely determine the durations of market crashes May 25, 2024 - MOE AcRF Tier 2 grant MOE-000442-00 Kang, Zheng Tien, 2024, "Indicator from the graph Laplacian of stock market time series cross sections can precisely determine the durations of market crashes", https://doi.org/10.21979/N9/7YNZAQ, DR-NTU (Data), V1 This repository include the processed ultrametric distance matrices data, Python and MATLAB scripts and MATLAB data holder files (in .mat format) used to generate the results and figures in the PLOS paper with the above title.
MOE AcRF Tier 2 grant MOE-000442-00(Nanyang Technological University) May 24, 2024 Dataverse for MOE AcRF Tier 2 grant MOE-000442-00.
Laplacian spectra of persistent structures in Taiwan, Singapore, and US stock markets May 23, 2023 Cheong, Siew Ann, 2023, "Laplacian spectra of persistent structures in Taiwan, Singapore, and US stock markets", https://doi.org/10.21979/N9/UCEELS, DR-NTU (Data), V1 Python and MATLAB scripts used to generate figures in the Entropy paper with the above title.
Scientific Debate on Human Migration: Ethics, Challenges, and Solutions Apr 4, 2023 Cheong, Siew Ann, 2023, "Scientific Debate on Human Migration: Ethics, Challenges, and Solutions", https://doi.org/10.21979/N9/LQX1MS, DR-NTU (Data), V1 MATLAB scripts for simulating biological invasion and human migration scenarios on a star network.
Ricci Curvature Analysis Jul 19, 2021 - From MST to PMFG to TDA and Ricci Curvature Analysis Cheong, Siew Ann, 2021, "Ricci Curvature Analysis", https://doi.org/10.21979/N9/EO5QON, DR-NTU (Data), V1 Python scripts used for Ricci Curvature Analysis
From MST to PMFG to TDA and Ricci Curvature Analysis(Nanyang Technological University) Jul 19, 2021 MATLAB and Python scripts for manuscript "From MST to PMFG to TDA and Ricci Curvature Analysis" submitted to MDPI Entropy special issue
Hidden-State Modelling of a Cross-section of Geoelectric Time Series Data Can Provide Reliable Intermediate-term Probabilistic Earthquake Forecasting in Taiwan Jun 1, 2021 Cheong, Siew Ann, 2021, "Hidden-State Modelling of a Cross-section of Geoelectric Time Series Data Can Provide Reliable Intermediate-term Probabilistic Earthquake Forecasting in Taiwan", https://doi.org/10.21979/N9/JSUTCD, DR-NTU (Data), V1 (C, V, S, K) index time series data generated using 0.5-Hz GEMS time series data from Taiwan. In this data set, C is a modified autocorrelation function, V is the variance, S the skewness, and K the kurtosis of the GEMS geo-electric field time series.
Using Topological Data Analysis (TDA) and Persistent Homology to Analyse the Stock Markets in Singapore and Taiwan Feb 21, 2021 Cheong, Siew Ann, 2021, "Using Topological Data Analysis (TDA) and Persistent Homology to Analyse the Stock Markets in Singapore and Taiwan", https://doi.org/10.21979/N9/8XMZGF, DR-NTU (Data), V1 Data sets and Python scripts for paper published by T.-W. Yen and S. A. Cheong in Frontiers in Physics for a special issue "From Physics to Econophysics back to Physics: Methods and Insights".
Cross sections of 8 to 9 mixed assets after hypothesis testing Dec 14, 2020 - Identifying Actionable Serial Correlations in Financial Markets Cheong, Siew Ann, 2020, "Cross sections of 8 to 9 mixed assets after hypothesis testing", https://doi.org/10.21979/N9/FR745X, DR-NTU (Data), V1 Set 1 = (A) gold, (B) silver, (C) palladium, (D) S\&P 500, (E) Hang Seng, (F) platinum, (G) Dow Jones, (H) Nikkei, and (I) NASDAQ, prices between Apr 2, 1990 and Jan 28, 2018. Set 2 = (A) 5-year US bond, (B) 10-year US bond, (C) 2-year US bond, (D) 6-month US bond, (E) wheat, (F)...

Data-Driven Approach to Understanding Complex Urban Phe-nomena: A Preliminary Study on the Gentrification of H Street NE in Washington DC

Jul 9, 2024

Cheong, Siew Ann, 2024, "Data-Driven Approach to Understanding Complex Urban Phe-nomena: A Preliminary Study on the Gentrification of H Street NE in Washington DC", https://doi.org/10.21979/N9/N9F5ZU, DR-NTU (Data), V1

Python scripts and secondary data sets used in our study of the gentrification of H Street NE in Washington DC.

Indicator from the graph Laplacian of stock market time series cross sections can precisely determine the durations of market crashes

May 25, 2024 - MOE AcRF Tier 2 grant MOE-000442-00

Kang, Zheng Tien, 2024, "Indicator from the graph Laplacian of stock market time series cross sections can precisely determine the durations of market crashes", https://doi.org/10.21979/N9/7YNZAQ, DR-NTU (Data), V1

This repository include the processed ultrametric distance matrices data, Python and MATLAB scripts and MATLAB data holder files (in .mat format) used to generate the results and figures in the PLOS paper with the above title.

MOE AcRF Tier 2 grant MOE-000442-00(Nanyang Technological University)

May 24, 2024

Dataverse for MOE AcRF Tier 2 grant MOE-000442-00.

Laplacian spectra of persistent structures in Taiwan, Singapore, and US stock markets

May 23, 2023

Cheong, Siew Ann, 2023, "Laplacian spectra of persistent structures in Taiwan, Singapore, and US stock markets", https://doi.org/10.21979/N9/UCEELS, DR-NTU (Data), V1

Python and MATLAB scripts used to generate figures in the Entropy paper with the above title.

Scientific Debate on Human Migration: Ethics, Challenges, and Solutions

Apr 4, 2023

Cheong, Siew Ann, 2023, "Scientific Debate on Human Migration: Ethics, Challenges, and Solutions", https://doi.org/10.21979/N9/LQX1MS, DR-NTU (Data), V1

MATLAB scripts for simulating biological invasion and human migration scenarios on a star network.

Ricci Curvature Analysis

Jul 19, 2021 - From MST to PMFG to TDA and Ricci Curvature Analysis

Cheong, Siew Ann, 2021, "Ricci Curvature Analysis", https://doi.org/10.21979/N9/EO5QON, DR-NTU (Data), V1

Python scripts used for Ricci Curvature Analysis

From MST to PMFG to TDA and Ricci Curvature Analysis(Nanyang Technological University)

Jul 19, 2021

MATLAB and Python scripts for manuscript "From MST to PMFG to TDA and Ricci Curvature Analysis" submitted to MDPI Entropy special issue

Hidden-State Modelling of a Cross-section of Geoelectric Time Series Data Can Provide Reliable Intermediate-term Probabilistic Earthquake Forecasting in Taiwan

Jun 1, 2021

Cheong, Siew Ann, 2021, "Hidden-State Modelling of a Cross-section of Geoelectric Time Series Data Can Provide Reliable Intermediate-term Probabilistic Earthquake Forecasting in Taiwan", https://doi.org/10.21979/N9/JSUTCD, DR-NTU (Data), V1

(C, V, S, K) index time series data generated using 0.5-Hz GEMS time series data from Taiwan. In this data set, C is a modified autocorrelation function, V is the variance, S the skewness, and K the kurtosis of the GEMS geo-electric field time series.

Using Topological Data Analysis (TDA) and Persistent Homology to Analyse the Stock Markets in Singapore and Taiwan

Feb 21, 2021

Cheong, Siew Ann, 2021, "Using Topological Data Analysis (TDA) and Persistent Homology to Analyse the Stock Markets in Singapore and Taiwan", https://doi.org/10.21979/N9/8XMZGF, DR-NTU (Data), V1

Data sets and Python scripts for paper published by T.-W. Yen and S. A. Cheong in Frontiers in Physics for a special issue "From Physics to Econophysics back to Physics: Methods and Insights".

Cross sections of 8 to 9 mixed assets after hypothesis testing

Dec 14, 2020 - Identifying Actionable Serial Correlations in Financial Markets

Cheong, Siew Ann, 2020, "Cross sections of 8 to 9 mixed assets after hypothesis testing", https://doi.org/10.21979/N9/FR745X, DR-NTU (Data), V1

Set 1 = (A) gold, (B) silver, (C) palladium, (D) S\&P 500, (E) Hang Seng, (F) platinum, (G) Dow Jones, (H) Nikkei, and (I) NASDAQ, prices between Apr 2, 1990 and Jan 28, 2018. Set 2 = (A) 5-year US bond, (B) 10-year US bond, (C) 2-year US bond, (D) 6-month US bond, (E) wheat, (F)...

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