Zhihu Tech Column
May 9, 2026 · Big Data
How Zhihu Built a Unified OneID System to Consolidate Fragmented User Identities
Zhihu created a unified OneID framework that merges scattered account, device, and behavior data into a global unique identifier, using strong and weak IDs, graph‑based connectivity, device governance, and a device half‑life model to improve recommendation, push, and advertising effectiveness.
Big DataDevice GovernanceGraph Computation
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