时间信息在话题跟踪中的应用

摘要

Topic Tracking is one of the important tasks of TDT. And temporal information plays a role in describing a topic. In this paper, we discusses how to embed temporal information in Topic Tracking system and compares the reciprocal manner with the span-cross manner. Experiments show that the span-cross manner displays better in improving the TT system performance.%针对如何将时间信息嵌入话题跟踪系统进行了探究，比较倒数方式与跨度一交叉度方式各自对话题跟踪系统的影响。通过实验证明，跨度一交叉度的时间信息嵌入方式对于提升话题跟踪系统性能更有效。