In most of the research on topic tracking, texts are represented in "bag of words".
话题追踪的很多研究工作都是使用“bag of words”来表示文本。
参考来源 - 面向话题追踪的特征选取与文本表示技术的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
该算法中还考虑了话题追踪任务的时序性，将时间信息引入到了算法中。
Time sequence of topic tracking task is also considered in the algorithm, and time information is introduced.
该方法采用增量学习的思想，对话题追踪任务中的自适应学习机制提出了新的算法。
This method adopts the idea of increment learning, and presents new algorithm to the adaptive learning mechanism in the task of topic tracking.
该方法采用增量学习的思想，对话题追踪任务中的自适应学习机制提出了新的算法。
Based on the idea of increment learning, the paper presents a new algorithm for the adaptive learning mechanism in the task of topic tracking.
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