Topic detection and topic tracking are two tasks of TDT.
话题检测、话题跟踪分别是TDT的两项子任务。
Text clustering is an important technology for Topic Detection and Tracking.
文档聚类是实现话题检测与跟踪的重要方法。
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。
At present, there are many researches about Topic Detection and Tracking, but these analyses aim at news events mainly.
目前对话题识别和话题跟踪的研究非常多，但这大都是对新闻事件进行分析。
Topic Detection and Tracking is a research driven by evaluation, which intends to organize and utilize information stream of texts according to event.
话题发现与跟踪是一项评测驱动的研究，旨在依据事件对语言文本信息流进行组织利用。
As an important subtask of topic detection and tracking, topic tracking identifies and collects relevant stories on certain topics from information stream.
作为话题检测与跟踪的重要研究子课题，话题跟踪针对特定话题，识别后续信息流中的相关报道。
In this paper, we proposed a method to discover topic's evolution over time by topic detection, topic filtering and relating topics in different time periods.
本文提出了一种挖掘新闻话题随时间变化的方法，通过话题抽取、话题过滤和话题关联实现话题的演化。
This paper' s research can be used very well in automatic content extraction, auto QS system, topic detection and tracking, automatic summary system and so on.
本文的研究成果可以很好地应用于自动内容抽取、自动问答系统、话题追踪结果及自动文摘系统中。
Experimental results show that the project can effectively improve the performance of the topic detection, and show the process of the topic evolvement clearly.
实验证明，该方案能够有效提高话题检测性能、清晰呈现话题演变过程。
Topic link detection is a foundational research in the field of topic detection and tracking, which detects whether two random stories talk about the same topic.
通过分析大量的英文报道的特点，针对目前话题检测研究中存在的难以区分两次不同的火车事故或爆炸事件的问题提出了基于内容分析的话题检测算法。
Experiment results show that, compared to the traditional topic detection methods, the new method can improve precision and recall of topic detection efficiently.
实验结果表明，本方法能够有效提高话题检测的准确率和召回率。
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。
Topic Detection and Tracking (TDT) can help us to organize the potential information so that we can grasp all the details about events and the relations between events.
话题检测与跟踪（TDT）技术可以帮助人们把分散的信息有效地汇集并组织起来，从整体上了解一个事件的全部细节以及该事件与其它事件之间的关系。
Topic detection technique can be used to detect news topics from a great amount of news stream, and help us organize and utilize news information according to their topics.
利用主题检测技术可以从海量新闻信息中实时检测到主题信息，从而将新闻信息按照主题组织并加以利用。
Topic detection and tracking (TDT) aims to develop a series of technologies for event based information organization, and hierarchical topic detection (HTD) is a new task of it.
针对互联网上论坛和新闻网站发布的海量自然语言文本，该文设计一个话题识别与跟踪系统，将海量的数据分类整理并聚合形成各个话题。
The experiments on TDT5 corpora indicated that: the new algorithm improved the accuracy of topic detection and decreased the computational overhead in the process of news data processing.
在TDT5语料库上的实验表明，该算法提高了话题检测的正确率，降低了新闻报道数据处理过程中的计算开销。
New event detection is an important research in the field of topic detection and tracking, and its task is real-time monitoring the stream of news stories and identifying the new topics in it.
新事件检测是话题检测与跟踪领域的一项重要研究，其任务是实时监控新闻报道流并从中识别新话题。
It is an important research topic to improve detection rate and reduce false positive rate of the detection model in the field of intrusion detection.
在入侵检测研究领域中，提高检测模型的检测率并降低误报率是一个重要的研究课题。
The last topic is about a trainable object detection system using at its core a Support Vector Machine classifier.
最后一个主题将讲解支持向量机分类物中核心使用的可训练物件侦测系统。
The detection of fuze signal in strong background noise is an important topic in fuze signal process.
强背景噪声中引信信号的检测，是引信信号处理中的一个重要课题。
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。
First chapter has outlined the infrared detection technology military application domain, the topic origin and the research content.
第一章概述了红外探测技术的军事应用领域和课题来源及研究内容。
Large power transformer partial discharge on-line monitoring technology is a hot topic in high voltage insulation detection and diagnosis domain.
大型电力变压器的局部放电在线监测技术是高电压绝缘检测与诊断领域研究的热门课题。
The detection problem for small targets in IR image sequences is a hot topic nowadays.
红外图像序列中小目标的检测问题是当前的研究热点。
The topic of the article is the detection of moving target, and this also means how to get the whole target from the image sequence.
本文研究的主题是运动目标检测，即如何从图像序列中提取出完整的运动目标。
How to improve the network intrusion detection technology has become a key topic in the IT field.
如何提高网络入侵检测技术也变为一个业界重点课题。
Human motion target detection based on computer vision is a cutting edge research topic causing increasing attention in the field of computer vision research.
基于计算机视觉的人体运动目标检测是计算机视觉领域中倍受关注的前沿课题。
Research on clustering analysis and outlier detection algorithms has become a highly active topic in the data mining research.
聚类及孤立点检测算法研究已经成为数据挖掘研究领域中非常活跃的一个研究课题。
The traditional morphology can't quantitate. So the study of new detection technology is the current hot topic in the domanial of PML diagnosis.
传统形态学不能对其定量分析，所以研究新的检测方法是目前白血病诊断领域的热点课题。
Therefore the real-time leakage detection of pipeline is an important research topic around the world.
因此管道泄漏的实时检测已成为世界重要的研究课题。
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