Results 31 to 40 of about 31,432 (126)
Finetuning Pre‐Trained Language Models for Automatic Assessment of English‐Chinese Interpreting
ABSTRACT Recent years have seen growing interest in leveraging pre‐trained language models (PLMs) for automatic assessment of spoken‐language performance. Contributing to this emerging line of work, the present study offers the first attempt to finetune two PLMs, GTE‐multilingual and mmBERT, for assessing English‐Chinese interpreting, using over 1700 ...
Zhaokun Jiang, Chao Han
wiley +1 more source
运用Copula模型研究随机变量间的相关结构,是近年来金融统计分析中的一个热点.在龚金国和史代敏提出时变Copula非参数模型的基础上,利用时间序列的极限理论研究了时变参数估计量的大样本性质,并给出了时变Copula模型的非参数估计算法.研究结果表明,时变Copula非参数模型的时变参数估计量具有一致性和渐近正态性.
GONGJin-guo(龚金国) +1 more
doaj +1 more source
ABSTRACT Self‐directed Learning (SDL) is an important skill for learners of all ages and phases of life. Generative AI facilitates self‐directed second language (L2) learning by providing interactive, personalised access to online resources. However, existing research on AI‐assisted self‐directed L2 learning focuses on adult learners in higher ...
Qing Ma +4 more
wiley +1 more source
暂态恢复电压(TRV)标准值参数是考核高压交流断路器在大容量试验站进行短路开断试验时的一项重要指标。文中提出了一种基于坐标系转换的TRV波形包络线与标准值参数计算方法,通过对TRV波形数据经过数学运算由笛卡尔坐标系转换到极坐标系下,进一步对极坐标系下的TRV波形数据计算可以得出与TRV波形相切的3条直线(两参数TRV)或4条包直线(四参数TRV)所组成的包络线以及TRV的标准值参数。应用该计算方法所获得TRV标准值参数,为大容量试验站进行短路开断试验时,预期TRV调试时试验回路R、L ...
班建, 高享想, 黄实, 李刚
doaj
利用WRF模式,采用YSU、QNSE边界层参数化方案以及调整参数后的QNSE边界层参数化方案(MQNSE),对2009年7月梅雨个例、2015年苏迪罗台风以及2013年10月的近海大风进行了模拟试验,并对模拟结果进行对比检验,着重检验参数调整后的QNSE方案模拟沿海大风效果.研究结果如下:参数调整后的QNSE 边界层参数化方法改进了对沿海风场的模拟效果,尤其是当风速小幅脉动时,参数调整后的QNSE方案较接近于实况风速的波动.通过登陆台风个例模拟试验和对沿海10个岛屿观测站的490个样本统计检验表明 ...
CHENYouli(陈有利) +4 more
doaj +1 more source
Accountability in Government Use of AI: Citizen Concerns and Preferences
ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
wiley +1 more source
对特殊参数的组合波发生器进行研究。首先讨论了波形参数、电路参数、电源利用率等之间的关系并得出有实用参考价值的曲线,根据此曲线,可以方便地确定特殊参数组合波在不同虚拟阻抗下的电路参数;其次,针对有代表性的电路(如10/1000电压波、10/1000电流波以及10/700电压波、10/300电流波等),选取一定虚拟阻抗下的电路参数,并进行仿真,验证了理论计算的正确性。
姚学玲, 陈景亮, 孙伟
doaj
Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley +1 more source
本文对维数不同并且参数未知的两个不同的混沌系统,通过增补维数的方法研究了两个系统的自适应函数混沌同步和参数识别问题.基于Lyapunov稳定性理论和自适应同步法,为系统设计了合适的自适应同步控制器和未知参数的辨识规则,实现了系统的混沌同步和未知参数的辨识.数值仿真验证了所设计的控制器和参数辨识规则的有效性.
党红刚, 刘晓君, 杨丽新
doaj
ABSTRACT This paper examines the practices ordinary social media users employ to influence the content served to them by platform algorithms, and the relationship between these practices and levels of algorithmic literacy. Practices were documented across TikTok, Facebook, Instagram, Twitter (now X), YouTube and Reddit during 65 sessions, conducted as ...
Agata Stepnik, Joanne Gray
wiley +1 more source

