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[期刊论文] 作者：Yixuan CAO,Dian CHEN,Zhengqi XU,Hongwei LI,Ping LUO,
来源：中国计算机科学前沿:英文版 年份：2021
Most existing researches on relation extraction focus on binary flat relations like Bomln relation between a Person and a Location.But a large portion of objective facts de-scribed in natural language are complex,especially in professional ......
Response of magnetic fields at geosynchronous orbit and on the ground to the sudden changes of IMF B
[期刊论文] 作者：DONG YiXuan,CAO JinBin,LIU WenLong,ZHANG Lei,LI LiuYuan,,
来源：Science China(Technological Sciences) 年份：2014
The rapid change in the Earth’s magnetosphere caused by solar wind disturbances has been an important part of the solar wind-magnetosphere interaction.However...
[期刊论文] 作者：Hongwei LI,Yingpeng HU,Yixuan CAO,Ganbin ZHOU,Ping LUO,
来源：计算机科学前沿 年份：2021
Richly formatted documents,such as financial dis-closures,scientific articles,government regulations,widely ex-ist on Web.However,since most of these documents are only for public reading,the styling information inside them is usu-ally miss......
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