A frequent item of a data stream is a data point whose occurrence frequency is above a given threshold.

数据流频繁项是指在数据流中出现频率超出指定阈值的数据项。

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A frequent item of a data stream is a data point whose occurrence frequency is above a given threshold.

数据流频繁项是指在数据流中出现频率超出指定阈值的数据项。

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