Pankaj K. Singh
Musings on paths new and staid — technology, physics, and Hindi poetry.
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Which way does a mirror flip?
Stand in front of a mirror and your left hand becomes the right. But your head doesn't become your feet. Why does a mirror reverse left and right, but not up and down?
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बीच में हैं बाबाजी
A childhood memory, a carpenter’s imperfect chair, and four earthy lines that became family folklore.
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Generative AI
A history of the ideas behind today's generative AI, told through a decade of notebooks — from a best-fit line to the Transformer.
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Caching containers
Containers look like ordinary key-value cache entries — until you notice that serving one consumes it. That single difference turns caching into inventory management.
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Fraud detection in Cloud
How cloud providers spot payments and account fraud with velocity analysis — and the precision/recall trade-offs that decide whether customers trust the system.