Research

Research interests

My research interests lie in different topics listed below. If you would like to collaborate, or for students who want to work under my supervision, please reach me at choiruddin@its.ac.id.

• Spatial Statistics: Spatial point process, Geographically-based weighted regression 

• Convex optimization: penalized likelihood, Newton-based algorithm, Dantzig selector

• Statistical and machine learnings: Support vector machine, Random forest, LASSO, Partial least squares, Neural network

• Applied Statistics to Seismology, Epidemiology, Forestry, Economy and Business

Publication and Research Activities

Book:

1. A. Choiruddin. 2017. Feature selection for spatial point processes. PhD thesis. University Grenoble Alpes.

2. A. Choiruddin, H. Rahmatullah, H. Ramadhan, et al. 2015. Mozaheksa - Mozaik Garuda Muda di Negeri Heksagon. Pustaka SAGA.

Article in a top journal:

1. Fadlurohman, A., Choiruddin, A., & Mateu, J. (2024). Inhomogeneous log-Gaussian Cox processes with piecewise constant covariates: A case study in modeling of COVID-19 transmission risk in East Java. Stochastic Environmental Research and Risk Assessment. Published online.

2. Choiruddin, A., Susanto, T.Y., Husain, A., & Kartikasari, Y. (2024). kppmenet: combining the kppm and elastic net regularization for inhomogeneous Cox point process with correlated covariates. Journal of Applied Statistics, 51(5), 993–1006.

3. Choiruddin, A., Rahman, A. A., & Andreas, C. (2024). Algorithms for fitting the space-time ETAS model to earthquake catalog data: A comparative study. Submitted/Revised.

4. Choiruddin, A., Gonzalez, J., Mateu, J., Fadlurohman, A., & Waagepetersen, R. (2024). Variable selection for inhomogeneous spatio-temporal Poisson point processes. Submitted/Revised.

5. Escudero, I., Angelo, J. M., Mateu, J., & Choiruddin, A. (2024). Crime risk assessment through Cox and self-exciting spatio-temporal point processes. Submitted/Revised.

6. Kurniawan, A., Choiruddin, A., & Iriawan, N. (2024). Indonesian Islamic Banks’ Post-Pandemic Profitability Alignment with Sustainability Goals. Submitted/Revised.

7. Yasin, H., Purhadi., & Choiruddin, A. (2024). Mapping Multidimensional Educational Indicators using Geographically and Temporally Weighted Multivariate Generalized Gamma Regression. Submitted/Revised.

8. Choiruddin, A., Hannanu, F. F., Mateu, J., & Fitriyanah, V. (2023). COVID-19 transmission risk in Surabaya and Sidoarjo: An inhomogeneous marked Poisson point process approach. Stochastic Environmental Research and Risk Assessment, 37, 2271-2282.

9. Choiruddin, A., Coeurjolly, J.-F., & Letué, F. (2023). Adaptive lasso and Dantzig selector for spatial point processes intensity estimation. Bernoulli 29 (3), 1849-1876.

10. Susanto, T.Y., Choiruddin, A., Purnomo, J. (2023). On the Earthquake Modeling in Sumatra by Cauchy Cluster Process: Comparing log-linear and log-additive intensity models. Sains Malaysiana 52(2), 655-667.

11. Sohibien, G. P. D., Laome, L., Choiruddin, A., & Kuswanto, H. (2022). COVID-19 Pandemic’s Impact on Return on Asset and Financing of Islamic Commercial Banks: Evidence from Indonesia. Sustainability, 14(3), 1128. 

12. Choiruddin, A., Aisah, Trisnisa, F., & Iriawan, N. (2021). Quantifying the Effect of Geological Factors on Distribution of Earthquake Occurrences by Inhomogeneous Cox Processes. Pure and Applied Geophysics, 178(5), 1579-1592. 

13. Choiruddin, A., Coeurjolly, J. F., & Waagepetersen, R. (2021). Information criteria for inhomogeneous spatial point processes. Australian & New Zealand Journal of Statistics, 63(1), 119-143. 

14. Aisah., N. Iriawan, and A. Choiruddin. (2020). On the Earthquake Modeling by Using Bayesian Mixture Poisson Process. International Journal of Advanced Science and Technology, 29(7s), 3350-3358. 

15. Choiruddin, A., Cuevas, F.,  Coeurjolly, J.-F. , and  Waagepetersen, R. (2020). Regularized estimation for highly multivariate log Gaussian Cox processes. Statistics and Computing, 30(3), 649-662.  

16. Choiruddin, A., Coeurjolly, J.-F., & Letué, F. (2018). Convex and non-convex regularization methods for spatial point processes intensity estimation. Electronic Journal of Statistics, 12(1), 1210-1255.

Conference/Scientific Meeting Proceedings and Talks:

Updated at the google scholar profile.

Research Visit and Invited Seminar Talks:

1. 2024, Februay-March. Visiting Researcher. Department of Mathematical Sciences, Aalborg University, Denmark

2. 2022, October-December. Visiting Researcher. Laboratory Jean-Kuntzmann, Univ. Grenoble Alpes, France

3. 2022, November. Visiting Researcher. Department of Mathematics, Universitat Jaume I, Spain

4. 2018, November. Visiting Researcher. Department of Mathematics, Universitat Jaume I, Spain

5. 2018, June. Seminar in Department of Statistics, Institut Teknologi Sepuluh Nopember, Indonesia

6. 2018, April. Seminar in Statistics Meeting, Dept. of Mathematical Sciences,  Aalborg University, Denmark.

7. 2018, January. Seminar in Laboratory I2M, University Aix-Marseille, France

8. 2017, April. Seminar in Department of Mathematics, Universitat Jaume I, Spain [Invited by Prof. Jorge Mateu]

9. 2016, September. Seminar in Department of Statistics, Institut Teknologi Sepuluh Nopember, Indonesia

10. 2016, December. Seminar in Laboratory Jean-Kuntzmann, Univ.Grenoble Alpes, France [Half day Ph.D. and post-doc colloquium]