EPI-Eval/flu-metrocast-hub

该数据集名为Flu MetroCast Hub — sub-state flu hosp forecast target，是一个专门用于美国次州级（城市/县）流感住院预测目标的数据集。它包含从2024年8月3日到2026年4月18日的每周数据，覆盖美国77个独特的地理位置（如城市或县）。主要数据列value表示每周流感住院人数或急诊就诊人数（单位：admissions/week），采用事件类型和求和聚合方式。数据集还包括目标标识符（target）和地理位置名称（location_name）等额外列。需要注意的是，不同司法管辖区的城市定义可能不同（例如纽约市包括五个行政区，洛杉矶指洛杉矶县），且不能简单将各城市数据相加来恢复州级数据，因为它们在地理上不严格划分。数据集是开放获取的，使用CC-BY-4.0许可证，属于第2层数据，通过GitHub访问，主要用于流感监测和预测模型的真实数据输入。The dataset named Flu MetroCast Hub — sub-state flu hosp forecast target is designed for sub-state (city/county) level influenza hospitalization forecast targets in the United States. It covers weekly data from August 3, 2024, to April 18, 2026, across 77 unique geographic locations (e.g., cities or counties) in the US. The primary column value represents weekly flu hospital admissions or emergency department visits (unit: admissions/week), with an incident value type and sum aggregation. Additional columns include target (a Hubverse target identifier) and location_name (metro identifier). Interpretation caveats note that metro definitions vary by jurisdiction (e.g., NYC includes five boroughs, LA refers to LA County) and that summing metro data does not accurately recover state-level totals due to non-tiling geographic boundaries. The dataset is openly available under the CC-BY-4.0 license, classified as Tier 2, accessible via GitHub, and serves as a truth-only ingest for influenza surveillance and forecasting models.