How Bitmap‑Based High‑Table Architecture Powers Mill‑Scale User Profiling and Real‑Time Crowd Selection

The article explains how a bitmap‑driven high‑table design (SelectDB) overcomes wide‑table storage bloat and latency to enable millisecond‑level crowd selection for tens of millions of users with hundreds of tag dimensions, while supporting dynamic tag expansion.

bitmapcrowd selectionreal-time analytics

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How Bitmap‑Based High‑Table Architecture Powers Mill‑Scale User Profiling and Real‑Time Crowd Selection