Machine learning in adaptive text filtering includes profile learning and threshold learning.

自适应文本过滤中的机器学习方法包括模板学习和阈值学习。

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TREC plays an important role in the research area of text retrieval and filtering, and the adaptive filtering track is one of the most important tasks in TREC.

自适应过滤是文本检索会议（TREC）过滤任务的重要子任务，也最接近真实的环境。

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