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 ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
Indicted on federal charges
Trump: US will run Venezuela
'Super tusker' elephant dies
To miss Palm Springs gala
Wisconsin judge resigns
Bar managers under probe
Warriors' Green ejected again
Caribbean flights to resume
Faces drug charges
Body of missing boy found
Massive blaze in Denver
Suspect to remain detained
California's open carry ban
Hires coach Michael Joyce
Back in UK after crash
Iran’s leader on protests
Breaks silence amid charges
Diane Crump dies at 77
Arizona helicopter crash
OH police search for suspect
Zelenskyy names new top aide
Agree to 3-yr extension?
Announce 2-yr split plan
Lab rescued from an icy pond
Carted off with leg injury
Flu cases hit record in NY
Search on after boat strike
Set to make China visit
Parachutist crash lands
Breaks NBA record
BTS announces comeback
NK fires ballistic missiles
Blocks HieFo chip deal
反馈