理学 文本挖掘评测 释 Topic Detection and Tracking; TDT 话题检测与跟踪会议 由美国国防高级研究计划委员会（DARPA）主办的一个关于信息抽取的会议。又名TDT。
TDT 全称：Terrestrial Dynamical Time。地球力学时
数据库 数据库新技术 释文 topic detection and tracking, TDT 主题检测与跟踪 人工智能 计算语言学 释文 tonic detection and tracking, TDT 话题检测与跟踪
- da Vinci
- da Vinci crater
- Da Vinci robot
- Davis
- Davis Cup Tennis
- Davis-Greenstein effect
- davis gun
- Davisian geomorphic cycle
- Davis, Raymond , Jr.
- Davis Sea
- Davisson
- Davisson, Clinton Joseph
- Davisson crater
- Davisson Germer experiment
- Davisson-Germer experiment
- Davis Station
- Davis Strait
- Davy
- Davy Chain
- Davydov splitting
- Davydov分裂
- Davy lamp
- Davy’s molten salt electrolysis
- Dawalamu
- Dawan