Author

I. Kakkos

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Open access Jul 2026

Knowledge Graphs vs. SQL over Structured EHR Data

Six retrieval configurations that vary along two axes: backend (a property graph database, a relational database and a dense vector index) and interface design (curated domain-specific tool calls, model-generated queries, full-text search, and single-shot dense retrieval) are compared.

Leonidas Anagnou, Andreas Vezakis, Ioannis A Vezakis et al. · Future Internet · 0 citations

Open access Jul 2026

Organ Segmentation with Machine Learning Models

Ten architectures spanning convolutional, attention-based, transformer, and state–space (Mamba) families on the AMOS CT dataset under one identical nnU-Net-style pipeline are benchmarked, with per-organ Dice, 95-percentile Hausdorff Distance (HD95), and Normalised Surface Dice, with pairwise significance tested on an i...

Alexandros Barmperis, Olga Menegaki, Anna Panagiotakopoulou et al. · Journal of Imaging · 0 citations