Histopathology Image Classification — 4th / 170
December 1, 2025
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1 min read
Image classification of molecular structures in tissue images for the Artificial Neural Networks & Deep Learning course at Politecnico di Milano — ranked 4th of 170 teams on a hidden test set.
- Backbone: transfer learning with a ResNet-50 pre-trained via RetCCL for histopathology-specific feature extraction.
- Pipeline: reproducible PyTorch Lightning training with WeightedRandomSampler for class imbalance, AdamW, label smoothing, cosine annealing, and rotation/flip/color-jitter augmentation.
Python · PyTorch · PyTorch Lightning · CNNs

Authors
Lorenzo Ortolani
(he/him)
Roboticist · Physical AI & VLA for Humanoids
I build Physical AI — robots that perceive, reason, and act in the real world.
My focus is advancing Vision-Language-Action (VLA) policies so that a single
humanoid can learn a diverse library of skills and choose the right one for whatever
industrial task it faces, generalizing far beyond a single demonstration.
I co-founded TalOS Robotics AI to put this in operators’ hands, and I work across the
full stack: locomotion and navigation, learned manipulation, sim-to-real, and the
agent tooling that wraps it all together.