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Building a STAC server to avoid scanning 3.8 million tiles

The GeoTessera project produces 128-channel geospatial embeddings from Sentinel satellite imagery. The dataset is tiled at 0.1-degree resolution across the globe, covering 9 years and comprising roughly 3.8 million tiles, each containing embeddings and scale-factor files.

17 Apr 2026

Marc Elvers

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Can a CPU with Intel AMX Match a GPU for ML Inference?

GPU acceleration is the default assumption for machine learning inference. But Intel’s AMX (Advanced Matrix Extensions) may close the gap. AMX is built into recent Xeon processors, which are available from Azure. Can they compete with similarly priced GPU-based machines for the Tessera pipeline?

08 Apr 2026

Marc Elvers

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Tile Server

My throw-away comment at the end of my earlier post shows my scepticism that the JSON file approach was really viable.

02 Dec 2025

Marc Elvers

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