幂等性与移动窗口本质上是一种归约操作（2021）
本文论证了幂等性（idempotency）与移动窗口（moving window）这两种看似独立的数据处理概念，实际上都可以统一归约为一种归约（reduction）操作。作者通过形式化推导和具体示例，展示了如何将移动窗口计算视为一种特殊的归约过程，并解释了幂等性如何自然地从该归约模式中涌现。这一视角有助于简化分布式流处理系统的设计与推理。
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