Research
WeFair proposes fidelity-aware alignment for personalized query rewriting in WeChat short-video search
WeFair-2B reportedly beats strong rewriting baselines offline and is deployed in WeChat short-video search, serving over 100 million queries per day. The online A/B test shows a 2.593% relative rise in effective video-view rate and a 2.350% relative drop in reformulation rate.
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