Topic tracking is a subtask of TDT. It aims at monitoring the stream of news stories to find additional stories on a topic that is identified using several sample stories.
话题追踪是TDT的一个子任务，它的目的是监控新闻故事流识别出与预先给定几个新闻故事表述的话题相关的后继故事。
With background on network security monitoring, it presents an approach of aggregating event stream into time series and charactering data using similarity clustering.
事件流是近年来兴起的一种对实时进入系统的海量数据进行分析查询的应用，而数据特征是评价系统所需要的负载模型的重要部分。
The principle of light fluctuation is presented, on which a novel system for on-line monitoring pulverized coal stream was developed by authors.
介绍了光脉动法的基本原理，及基于该原理开发的可用于直吹式和中间仓储式煤粉制粉系统的煤粉粒度和浓度实时在线监测系统。
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