多视图偏多标记学习主要处理同时具有多个视图和多个相关标记但标记信息不完全准确的数据.现有多视图偏多标记学习方法大多采用两阶段的方式独立进行标记消歧与多标记分类,其分类性能有待提高.本文提出了一种多视图偏多标记分类与标记消歧联合学习(joint learning of multi-view partial multi-label classification and label disambiguation,JL-MVPML-LD)框架.首先,对多视图特征进行多核融合并考虑不同视图的重要性;其次,自动挖掘实例相关性和标记相关性,并利用它们来促进多视图偏多标记分类和标记消歧的联合学习;最后,采用交替迭代方法进行求解.在3个数据集上27种情况下的实验结果验证了本文方法的有效性.
高中阶段是培养学生创新意识、数学思维以及问题解决能力的关键期。在这一阶段,很多学生只注重学习数学知识和技能,却忽视了综合素质的提升。为了有效解决上述问题,发展学生的数学核心素养,需要让学生们经历和参与核心素养培养的学习活动,通过核心素养驱动教学改革。因此,数学教师可以将学习进阶理论应用于数学教学中,设计学习进阶教学活动,推动学生合作探究式学习,促进学生多方面能力发展。本文主要浅谈核心素养背景下的高中数学学习进阶研究,旨在为高中数学教师提供新的教学思路和策略,促进学生核心素养的全面发展。 The senior secondary stage is a key period for students to develop their sense of innovation, mathematical thinking and problem-solving skills. At this stage, many students only focus on learning mathematical knowledge and skills, but neglect the improvement of their comprehensive quality. In order to effectively solve the above problems and develop students’ mathematical core literacy, it is necessary to let students experience and participate in the learning activities of core literacy development, and to drive teaching reform through core literacy. Therefore, mathematics teachers can apply the learning progression theory to mathematics teaching, design learning progression teaching activities, promote students’ cooperative inquiry learning, and promote the development of students’ multifaceted abilities. This paper focuses on the study of learning progression in high school mathematics in the context of core literacy, aiming to provide high school mathematics teachers with new teaching ideas and strategies to promote the comprehensive development of students’ core literacy.
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