In view of the impact of transfer and differentiation of event on topic tracking, paper discusses the comprehensive methods of weight adjustment, event frame and story expansion to improve the tracking effectiveness.
考虑到事件主题的迁移和分化对跟踪性能的影响,本文利用了事件框架、报道扩充和权重调整等多种策略来提高话题跟踪的性能。
参考来源 - 基于知网的话题跟踪和倾向性跟踪研究·2,447,543篇论文数据，部分数据来源于NoteExpress
为提高检索效果，本文提出单权重相关反馈和先序满意度评价两种权重调整方式。
Two feedback mechanisms are proposed to improve retrieval result, including single weight feedback and first order statisfication evaluation.
另外，系统利用基于分阶段显示和评价反馈的权重调整方法进一步提高检索性能。
In addition, it USES two-step-displaying-and-feedback weight adjusting method to improve the performance of the system.
与此同时，市场风险偏好再起，因商品指数年度权重调整在即而引发的卖盘已被市场吸收。
Meanwhile, selling as part of the looming annual commodity index reweightings is being soaked up in the renewed environment of rising risk appetite.
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