Reproduce “SurvEval: Listwise Re-Ranking Evaluator via Survival-Based Exposure and Multi-Objective Value Modeling” on OpenResearch

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About this paper

YaChen Yan, Liubo Li

SurvEval addresses re-ranking by estimating the probability users reach each list position and each item’s conditional engagement value. It models sequential exits with position-specific hazards, then combines reaching probabilities and values across the list. On KuaiRand, it achieves 0.8523 NDCG versus CAVE’s 0.8450 and leads all four reported dataset-metric comparisons, but component contributions are not isolated in these offline results.

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