人工智能(AI)正在重塑教育领域,其中AI辅助教学成为提升教学效率和质量的关键途径。魔力学校(Magic School AI)作为美国教育改革的先锋,通过生成式AI技术,为教育工作者和学习者提供了创新的教学和学习体验。该平台基于建构主义学习理论...人工智能(AI)正在重塑教育领域,其中AI辅助教学成为提升教学效率和质量的关键途径。魔力学校(Magic School AI)作为美国教育改革的先锋,通过生成式AI技术,为教育工作者和学习者提供了创新的教学和学习体验。该平台基于建构主义学习理论、通用学习设计理念和知识深度模型,设计了多样化的教学工具,其优势主要体现在个性化学习、适应不同学习环境和促进有效沟通与协作方面。然而,随着AI教学工具的广泛应用,数据隐私、技术偏见和用户接受度等问题也日益凸显,需要在推广过程中予以解决。魔力学校AI平台的成功经验,对于人工智能与应用技术的研究和实践具有重要参考价值,为全球教育工作者和政策制定者提供了AI辅助教学的宝贵经验和启示,促进了对教育技术未来发展的深入思考。展开更多
The inter-agency government information sharing(IAGIS)plays an important role in improving service and efficiency of government agencies.Currently,there is still no effective and secure way for data-driven IAGIS to fu...The inter-agency government information sharing(IAGIS)plays an important role in improving service and efficiency of government agencies.Currently,there is still no effective and secure way for data-driven IAGIS to fulfill dynamic demands of information sharing between government agencies.Motivated by blockchain and data mining,a data-driven framework is proposed for IAGIS in this paper.Firstly,the blockchain is used as the core to design the whole framework for monitoring and preventing leakage and abuse of government information,in order to guarantee information security.Secondly,a four-layer architecture is designed for implementing the proposed framework.Thirdly,the classical data mining algorithms PageRank and Apriori are applied to dynamically design smart contracts for information sharing,for the purposed of flexibly adjusting the information sharing strategies according to the practical demands of government agencies for public management and public service.Finally,a case study is presented to illustrate the operation of the proposed framework.展开更多
提出了一种适用于环形栅LDMOS器件的子电路宏模型。基于对环形栅LDMOS器件结构的分析,将环形栅LDMOS器件分为两个部分,一个是中间的条形栅MOS部分,使用常规的高压MOS模型;另一个是端头部分,为一个圆环形栅极MOS器件,采用了一个单独的模...提出了一种适用于环形栅LDMOS器件的子电路宏模型。基于对环形栅LDMOS器件结构的分析,将环形栅LDMOS器件分为两个部分,一个是中间的条形栅MOS部分,使用常规的高压MOS模型;另一个是端头部分,为一个圆环形栅极MOS器件,采用了一个单独的模型。基于40 V BCD工艺的N沟道LDMOS器件进行模型提取与验证。结果表明,建立的宏模型具有较强的几何尺寸缩放功能,对于不同尺寸的器件都具有较高的拟合精度,并且模型能够兼容当前主要的商用电路仿真器Hspice和Spectre。展开更多
文摘人工智能(AI)正在重塑教育领域,其中AI辅助教学成为提升教学效率和质量的关键途径。魔力学校(Magic School AI)作为美国教育改革的先锋,通过生成式AI技术,为教育工作者和学习者提供了创新的教学和学习体验。该平台基于建构主义学习理论、通用学习设计理念和知识深度模型,设计了多样化的教学工具,其优势主要体现在个性化学习、适应不同学习环境和促进有效沟通与协作方面。然而,随着AI教学工具的广泛应用,数据隐私、技术偏见和用户接受度等问题也日益凸显,需要在推广过程中予以解决。魔力学校AI平台的成功经验,对于人工智能与应用技术的研究和实践具有重要参考价值,为全球教育工作者和政策制定者提供了AI辅助教学的宝贵经验和启示,促进了对教育技术未来发展的深入思考。
基金Supported by the Project of Guangdong Science and Technology Department(2020B010166005)the Post-Doctoral Research Project(Z000158)+2 种基金the Ministry of Education Social Science Fund(22YJ630167)the Fund project of Department of Science and Technology of Guangdong Province(GDK TP2021032500)the Guangdong Philosophy and Social Science(GD22YYJ15).
文摘The inter-agency government information sharing(IAGIS)plays an important role in improving service and efficiency of government agencies.Currently,there is still no effective and secure way for data-driven IAGIS to fulfill dynamic demands of information sharing between government agencies.Motivated by blockchain and data mining,a data-driven framework is proposed for IAGIS in this paper.Firstly,the blockchain is used as the core to design the whole framework for monitoring and preventing leakage and abuse of government information,in order to guarantee information security.Secondly,a four-layer architecture is designed for implementing the proposed framework.Thirdly,the classical data mining algorithms PageRank and Apriori are applied to dynamically design smart contracts for information sharing,for the purposed of flexibly adjusting the information sharing strategies according to the practical demands of government agencies for public management and public service.Finally,a case study is presented to illustrate the operation of the proposed framework.
文摘提出了一种适用于环形栅LDMOS器件的子电路宏模型。基于对环形栅LDMOS器件结构的分析,将环形栅LDMOS器件分为两个部分,一个是中间的条形栅MOS部分,使用常规的高压MOS模型;另一个是端头部分,为一个圆环形栅极MOS器件,采用了一个单独的模型。基于40 V BCD工艺的N沟道LDMOS器件进行模型提取与验证。结果表明,建立的宏模型具有较强的几何尺寸缩放功能,对于不同尺寸的器件都具有较高的拟合精度,并且模型能够兼容当前主要的商用电路仿真器Hspice和Spectre。