Author

D. Chaerani

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Open access 2026

A multistage multiobjective optimization model for land use change based on the green economy with spatial constraint parameters determined by artificial neural networks

This study aims to formulate a Multiobjective Multistage optimization model for land use change problems within a green economy framework. Land use allocation is formulated as a sequential decision-making process, where the decision variables denote the area allocated to each land use type at every stage. A dynamic pro...

Oksigeno Phanca Perdana, D. Chaerani, B. Ruchjana · Decision Science Letters · 0 citations

Open access Aug 2026

Data-Driven Uncertainty Set Construction with ARIMA–GARCH Modeling for Robust Portfolio Optimization

A data-driven framework for constructing polyhedral uncertainty sets that integrates Gaussian mixture models to identify heterogeneous distributional components and ARIMA-GARCH models to capture time-varying volatility dynamics is proposed, providing a statistically grounded, geometrically faithful, and computationally...

D. Setyawan, D. Chaerani, S. Sukono et al. · Mathematics · 1 citation