在中学数学教学中,反比例函数的教学是一项非常重要的教学内容,也是中学生要掌握的重要知识点。由于中学反比例函数知识点比较抽象,对学生的画图能力和函数理解要求较高。网络画板在中学反比例函数中的应用在很大程度上为教师教学提供了便利。基于此,本文针对网络画板在中学反比例函数教学中的应用进行分析,希望能够为相关的教育工作者提供有力的参考意见。In middle school mathematics teaching, the teaching of inverse proportional functions is a very important teaching content and also an important knowledge point that middle school students need to master. Due to the abstract nature of knowledge about inverse proportional functions in middle school, there is a high demand for students’ drawing ability and understanding of functions. The application of online drawing boards in middle school inverse proportional functions has greatly provided convenience for teachers’ teaching. Based on this, this article analyzes the application of online drawing boards in teaching inverse proportional functions in middle schools, hoping to provide strong reference opinions for relevant educators.
软件缺陷(bug)分派是将bug报告与适合解决该bug的开发人员进行匹配的过程,能够使bug得到及时修复.目前的bug分派研究大多集中于bug报告的文本分类,但根据帕累托法则,用以分类的bug报告存在数据分布不均衡现象,容易对非活跃开发者产生较差的分派效果;此外,现有的分类模型忽视了对开发人员的建模且难以挖掘bug与开发人员之间的相关性,影响了bug分派效能.为此,提出一种基于多模态融合的软件缺陷协同分派方法CBT-MF (collaborative bug triaging method based on multimodal fusion).该方法首先对bug报告进行预处理并构造bug-开发人员二部图;其次,为了缓减bug修复记录分布不均衡性的影响,通过K-means和正负采样的方法对二部图数据进行增强;为了表征开发者信息,基于图卷积模型提取二部图节点特征;最后,采用内积匹配的方法捕获bug与开发者的相关性,并通过贝叶斯个性化排序实现bug报告与开发人员的推荐与分派.在公开数据集上进行全面的实验评估,实验结果表明, CBT-MF在bug分派方面相较于多个现有先进方法表现出更优越的性能.
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