Temporal Decay of Co-Citation Predictability: A 20-Year Statute Retrieval Benchmark from 396M Ukrainian Court Citations
Signal
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Hype
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In three linesUA-StatuteRetrieval: 20-year benchmark on 396M Ukrainian court citations. Co-citation predictability declines 33-47% (Adamic-Adar MRR 0.43→0.29). Non-uniform decay: criminal law stable (~0.40), civil law collapses (0.35→0.15) post-2017 reform. Mid-frequency articles (1K-10K citations) lose 50% predictability. E5-large detects 4.3% semantic drift.Read source
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