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
- neoteny
- Neotethys ocean
- Neo-Thomism
- neo-Thomist school of law
- Neotropics
- Neotype
- Neo-Victorian fiction
- neo-weberian sociology of education
- neo-Weberism
- Neo-Worfianism
- neo–psychoanalysis
- NEO人格调查表
- NEP
- NEPA
- NEPAD
- Nepal
- Nepalese
- Nepalese Buddhism
- Nepalese music
- Nepali Congress Party
- Nepali Good Will Party
- Nepali language
- Nepal National Democratic Party
- Nepal Sadbhavana Party
- nep and trash