第二是事件聚类去重。对所有内容做 Embedding 向量嵌入（用的 text-embedding-3-small，非常便宜），计算相关性，剔除针对同一个主题、不同信息源的重复内容。这里有一套三级通知降噪机制：相似度低于 0.85 的视为全新事件，完整推送；0.85 到 0.97 之间的视为增量更新，只推送新增信息；超过 0.97 且实体高度重合的，直接静默。一个事件簇如果连续 7 天没有更新，会自动归档。
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。WPS下载最新地址是该领域的重要参考
Birmingham City’s owner, Knighthead Capital Management, is among a number of American investors exploring the purchase of potential new franchises in Prem Rugby before a radical shake-up of the sport due to be ratified by the Rugby Football Union on Friday.
In SQL, we have tables containing individual rows. Tables have strict schemas that every row must obey; there are columns with types and other possible constraints: unique, not null, value checks or references to rows of other tables. Referential integrity lies at the heart of this data approach - guarantee that if row B1 of table B references row A1 of table A, referred row (A1) must exist; orphan rows are not allowed. If we want to delete A1 row, there are two options:。关于这个话题，同城约会提供了深入分析