New topic detection is an important research in the field of topic detection and tracking.
新话题监测是话题检测与跟踪领域的一项重要研究。
For new topic detection at the event level, method based on clustering was discussed mainly, which included the representation of documents, and document clustering.
对于事件层的新话题监测，主要阐述基于聚类的方法，包括文档的向量化表示以及文档聚类。
The new high blood pressure topic on the site contains information about the prevention, detection, and treatment of high blood pressure.
这个网站上新的高血压方面的话题涵盖了高血压预防，发现和治疗方面的信息。
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