English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最佳匹配
最新
生物通
4月
BERTopic_Teen优化模型:基于多模块优化的青少年健康短文本主题建模方法
这篇综述提出BERTopic_Teen模型,通过流行度偏差正则器(PDR)、动态文档嵌入优化器(DDEO)和概率重分配矩阵(PRM)三模块优化,显著提升青少年健康相关推文的主题建模效果。实验显示其NPMI(0.2184)较原模型提升16.1%,主题多样性(TD=0.9935)和困惑度(1.7214 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
Trump to pull National Guard
Admin terminates lease
Sprinkles Cupcakes closing
France to ban under-15s?
US reduces proposed tariffs
Rivers’ comeback to end
Taiwan on high alert
Today in history: 1920
Wins Iowa Senate seat
Recalls assault in 1960s
Disney World worker hurt
Back at the Australian Open
Former US senator dies
To impose tariffs on beef
Fatal mountain lion attack?
Peru train collision
Iran protests escalate
Announces MN fraud hearings
Earthquake strikes Japan
To review Epstein files
Weekly jobless claims fell
To distribute digital tokens
Raises alert for volcano
Facing assault charge
Drug prices to rise?
NBA Christmas viewership
Got a CT scan, not an MRI
Delivers inaugural address
Criticizes Trump veto
Returns to jail
ACA subsidies expire
Moves into CFP semifinals
反馈