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When One Heatmap Isn’t Enough: Layered XAI for Brain Tumour Detection

Opening — Why this matters now Medical AI is no longer struggling with accuracy. In constrained tasks like MRI-based brain tumour detection, convolutional neural networks routinely cross the 90% mark. The real bottleneck has shifted elsewhere: trust. When an algorithm flags—or misses—a tumour, clinicians want to know why. And increasingly, a single colourful heatmap is not enough. ...

February 7, 2026 · 3 min · Zelina
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When Data Can’t Travel, Models Must: Federated Transformers Meet Brain Tumor Reality

Opening — Why this matters now Medical AI has reached an awkward phase of maturity. The models are powerful, the architectures increasingly baroque, and the clinical promise undeniable. Yet the data they require—high‑dimensional, multi‑modal, deeply personal—remains stubbornly immobile. Hospitals cannot simply pool MRI scans into a central data lake without running headlong into privacy law, ethics boards, and public trust. ...

January 22, 2026 · 4 min · Zelina
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Noisy but Wise: How Simple Noise Injection Beats Shortcut Learning in Medical AI

Opening — Why this matters now In a world obsessed with bigger models and cleaner data, a modest paper from the University of South Florida offers a quiet counterpoint: what if making data noisier actually makes models smarter? In medical AI—especially when dealing with limited, privacy-constrained datasets—overfitting isn’t just a technical nuisance; it’s a clinical liability. A model that learns the quirks of one hospital’s X-ray machine instead of the biomarkers of COVID-19 could fail catastrophically in another ward. ...

November 9, 2025 · 3 min · Zelina