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Author

Edwin Puertas

Universidad Tecnológica de Bolívar

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Open access Aug 2026

Original-image-controlled evaluation of deep and hHybrid models for bacterial morphology classification in gram-stained microscopy

Bacterial morphology assessment from Gram-stained microscopy is a relevant visual task in clinical microbiology, especially in ROI-based datasets where multiple regions may originate from the same image. This study focuses on leakage-controlled morphology classification, treating Gram status as contextual information b...

Andrea Menco-Tovar, R. Acevedo-Barrios, Edwin Puertas et al. · 0 citations
Sep 2026

Two-echelon vehicle planning for parcel E-commerce delivery: an application in a megacity using electric three-wheelers

To identify the operational practices of logistics service providers delivering to e-commerce stores, in order to determine their key challenges and assess the economic feasibility of using low-cost electric vehicles. Operational logistics requirements were identified through interviews with two fleet planne...

N. Rincón-García, Edwin Puertas, Jenifer Vásquez · 0 citations
Open access 2026

VerbaNexAI at SemEval-2026 Task 7: Integrating Web Snippets and RAG for the Evaluation of Multilingual Cultural Knowledge in LLMs

This study presents a LLaMA-based approach to answer short cultural questions in different languages within Task 7 of SemEval-2026 (Track 1: SAQ), without access to official training data, and demonstrates that contextual retrieval improves the evaluation of multilingual cultural knowledge.

Danileth Almanza, Jairo Serrano, Edwin Puertas et al. · 1 citation

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