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Jose Luis MellinaJM
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Jose Luis Mellina

@joseluismellina

Predoctoral AI researcher at the University of Murcia building explainable graph models that contributed to genetic diagnoses.

Spain
Message

At the University of Murcia, I work across the machine-learning research lifecycle, from data pipelines and model design to evaluation and open-source delivery. My work spans LLM fine-tuning, heterogeneous graph neural networks, and reliable machine learning.

I built Phenolinker, an explainable heterogeneous GraphSAGE system for phenotype-gene link prediction, combining BioBERT node features with Integrated Gradients. Its predictions contributed to real-world genetic diagnoses.

For GO3, I engineered a Rust core with a Python API, PyO3, and Rayon parallelism. Benchmarks showed faster initialization and gene-level similarity than established Python/R alternatives, while validating numerical agreement.

During a visiting research stay at the German Research Center for Artificial Intelligence (DFKI), jointly with Osnabrück University, I extended my doctoral work on representation learning across language, graphs, and structured knowledge. I’ve published six peer-reviewed papers, four as first author, and have also taught practical sessions in machine learning and deep learning.

Experience

Work history, roles, and key accomplishments

UM
Current

Predoctoral AI Researcher

University of Murcia

Jan 2023 - Present (3 years 8 months)

Own the end-to-end ML research lifecycle: data pipelines, model design and training, rigorous evaluation, explainability, and open-source delivery. Built systems spanning LLM fine-tuning, heterogeneous GNNs, and reliable machine learning; published six peer-reviewed papers, four as first author. Deliver applied R&D with an industry partner, including an inductive GNN module for automatic recommend

Education

Degrees, certifications, and relevant coursework

University of Murcia logoUM

University of Murcia

Ph.D., Computer Science

2023 -

Pursuing a Ph.D. in Computer Science with a focus on artificial intelligence, including research on language models, graph neural networks, and structured knowledge.

University of Murcia logoUM

University of Murcia

M.S., Big Data Analysis Technologies

2022 - 2023

Completed a Master of Science in Big Data Analysis Technologies.

University of Murcia logoUM

University of Murcia

B.S., Computer Science

2017 - 2022

Grade: 9.8/10

Earned a Bachelor of Science in Computer Science with Highest Honours, including a capstone grade of 9.8/10.

University of Murcia logoUM

University of Murcia

B.S., Mathematics

2017 - 2022

Grade: 9.7/10

Earned a Bachelor of Science in Mathematics with Highest Honours, including a capstone grade of 9.7/10.

Tech stack

Software and tools used professionally

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