v3 重做时丢了旧 scorer 的过晚衰减:新模型急迫性按【末诊】算、不看诊断年龄, 导致很多年前的老诊断(末诊也久)反而 urgency=紧急、分还高。而入池无时间上界(W3:缺口不自愈 仍入池),当初就靠 scorer 衰减止损 → 丢了就没人止损了。 - 加 computeFreshness(daysSince, windowDays):黄金窗内 1.0;过窗线性衰减到 2×窗=0.4,地板 0.4。 per-病种(K08窗180/K07窗365 → 慢病衰减慢)。软衰减不硬切(同 W3:止损交 scorer+UI排序+客服自选)。 - 综合 = (急迫×0.4+价值×0.3+意愿×0.3) × 新鲜度。breakdown 加 freshness/base 可解释。 - 本地:58% gap 有衰减(池里大量老诊断);老 missing_tooth base8.5→分42,新鲜的照常高分。 - 注:PAC 无丢单数据(v3.0 靠已丢单止损),新鲜度衰减是 PAC 的止损替代。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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