hardScale AIPalantirDatabricks

Find near-duplicate documents in a 1TB corpus without comparing every pair.

All-pairs comparison is O(n^2) and dies long before 1TB. The senior move is MinHash plus LSH: hash documents so only likely-similar pairs ever land in the same bucket, then verify just those.

Updated Aug 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

All-pairs comparison is O(n^2) and dies long before 1TB. The senior move is MinHash plus LSH: hash documents so only likely-similar pairs ever land in the same bucket, then verify just those.

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