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J. Vega-Sanchez

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Open access Jul 2026

Capability-Curve-Constrained Optimal Reactive Power Flow for Renewable-Integrated Transmission Systems

Optimal reactive power flow (ORPF) is a steady-state optimization problem used to determine reactive-power-related control settings in AC power systems while satisfying network operating constraints. In renewable-integrated transmission systems, explicitly representing the feasible reactive-power contribution of invert...

José Oscullo Lala, N. O. Orozco Garzón, H. C. Carvajal Mora et al. · 0 citations
Open access Aug 2026

A Cascaded Unsupervised–Supervised NLP Pipeline for Detecting Accusatory Language in Public Procurement

This paper analyzes metadata from Ecuador's SOCE, with particular emphasis on participant comments generated during the pre-contractual phase to propose a hybrid modeling framework that integrates unsupervised clustering and supervised classification within a natural language processing (NLP) pipeline to uncover latent...

Bryan Torres, Daniel Riofrío, J. Vega-Sanchez et al. · 0 citations

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