期刊文献+
共找到5篇文章
< 1 >
每页显示 20 50 100
一种基于二叉树的元知识学习算法MKL及其应用
1
作者 潘金贵 陈彬 +1 位作者 陈晶 陈世福 《软件学报》 EI CSCD 北大核心 1995年第5期316-320,共5页
MKL是知识获取系统NDKAS中实现的一个元知识学习算法,它在分类及抽象的基础上归纳出二叉树结构的元知识,用以有效地组织知识库中的规则.MKL生成的元知识满足元知识的基本性质.本文给出了MKL的算法描述,基本性质的满... MKL是知识获取系统NDKAS中实现的一个元知识学习算法,它在分类及抽象的基础上归纳出二叉树结构的元知识,用以有效地组织知识库中的规则.MKL生成的元知识满足元知识的基本性质.本文给出了MKL的算法描述,基本性质的满足性证明及算法的应用例子. 展开更多
关键词 元知识学习 知识获取 专家系统 二叉树
下载PDF
元宇宙技术“应景”智慧图书馆 被引量:16
2
作者 蔡迎春 任树怀 杨丰 《图书馆杂志》 北大核心 2023年第1期10-15,23,共7页
阐述全球元宇宙产业及现状,以及元宇宙的三大“现实”概念,认为元宇宙技术赋能智慧图书馆建设,而构建元宇宙知识学习中心,以促进知识共享和智慧传承,则是大学最终实现智慧图书馆的关键。在此基础上,提出元宇宙智慧图书馆的四大功能升维... 阐述全球元宇宙产业及现状,以及元宇宙的三大“现实”概念,认为元宇宙技术赋能智慧图书馆建设,而构建元宇宙知识学习中心,以促进知识共享和智慧传承,则是大学最终实现智慧图书馆的关键。在此基础上,提出元宇宙智慧图书馆的四大功能升维:借助智慧交互技术,建立智慧化数据库;延伸图书馆物理空间,搭建各种功能的元宇宙空间;建立元宇宙知识学术中心,提供智慧化知识服务;创设“元宇宙数智馆员”,解决专业、复合型人才的紧缺和流失问题。强调元宇宙能为图书馆带来具有革命性、颠覆性的变革,呼吁人们更理智、更耐心认识元宇宙和元宇宙智慧图书馆。 展开更多
关键词 宇宙 智慧图书馆 宇宙知识学习中心 数智馆员
下载PDF
连接式建构:知识建构研究的新取向 被引量:9
3
作者 万海鹏 余胜泉 王琦 《电化教育研究》 CSSCI 北大核心 2021年第10期12-18,24,共8页
智能技术的发展带来了对学习和认知的革新,学习的关键除了要构建知识并促进学习者的认知行为,在此过程中建立一个能够联通各个知识节点的社会知识网络也变得日益重要。不同于以往知识建构所秉持的行为交互层次、个体知识内化与外化水平... 智能技术的发展带来了对学习和认知的革新,学习的关键除了要构建知识并促进学习者的认知行为,在此过程中建立一个能够联通各个知识节点的社会知识网络也变得日益重要。不同于以往知识建构所秉持的行为交互层次、个体知识内化与外化水平以及社区整体知识增长的角度,研究从后现代知识观和联通主义学习观的视角出发,设计了以知识网络和社会网络为双核驱动的连接式知识建构模型。该模型强调知识建构过程中知识具有的情境性、进化性和社会性等特点,以社会知识网络为建构载体,关注知识建构活动中建立的知识与知识、人与知识、人与人之间的可视化连接。随后,基于学习元知识社区对模型的应用进行了探索,以期为知识建构领域的研究者提供理论和实践上的参考。 展开更多
关键词 连接式知识建构 知识网络 社会网络 社会知识网络 学习知识社区
下载PDF
A Study on the Teaching of Lexical Phrases in Non-English Majors' Argumentative Writing
4
作者 KONG Wei-shan 《Sino-US English Teaching》 2012年第6期1230-1235,共6页
Compared structural approach with communicative approach, the former puts too much emphasis on linguistic knowledge and neglects the language application, while the latter lays too much emphasis on the communicative c... Compared structural approach with communicative approach, the former puts too much emphasis on linguistic knowledge and neglects the language application, while the latter lays too much emphasis on the communicative classroom activities and neglects the systematic study of linguistic knowledge. Both of them cannot meet the requirements of improving the non-English major students' argumentative writing scores. So based on the Lexical Approach theory, taking the College English Integrated Course 4 (LI, 2003) as the main teaching material and lexical phrases as teaching and learning units, this study explores the effectiveness of the Lexical Approach in improving non-English major students' argumentative writing through classroom activities of input, absorption, and output of lexical phrases. The results show that lexical phrases have more effects on students' English competence than single words. They can help to improve the argumentative writing scores and cultivate an interest in learning English independently. 展开更多
关键词 Lexical Approach argumentative writing non-English majors
下载PDF
Assessing the Correlation Between Taskinduced Involvement Load, Word Learning, and Learners' Regulatory Ability
5
作者 QIN Chenghai TENG Feng 《Chinese Journal of Applied Linguistics》 SCIE 2017年第3期261-280,349,共21页
The present study, using quantitative and qualitative analyses, aimed at delineating the interrelationship between the knowledge of metacognition and the regulation of metacognition, along with the role of learners' ... The present study, using quantitative and qualitative analyses, aimed at delineating the interrelationship between the knowledge of metacognition and the regulation of metacognition, along with the role of learners' regulatory ability in mediating the effects of task-induced involvement load on word learning. A total of 60 university EFL students were recruited to the study. They first completed a checklist on metacognition and were then assigned to complete three tasks with varying degrees of involvement load followed by a vocabulary test. Of them, 12 students also participated in an interview. The results showed that the two main components of metacognition, i.e., the knowledge and regulation of metacognition, are closely and significantly correlated. The learners, assigned to four different ability groups (LK/LR, LK/HR, HK/LR, HK/HR), were found to benefit most by engaging in a task with the highest involvement load. Despite the benefits, their regulatory ability mediated the effects of task-induced involvement load on word learning, which was corroborated by the interview results. The relevant implications for teaching and learning words through tasks are further discussed. 展开更多
关键词 metacognitive knowledge regulatory ability INVOLVEMENT word learning
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部