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Spark框架下DA优化的教学大数据分析算法 被引量:2
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作者 唐立 吴新胜 +1 位作者 李亚平 曲金帅 《重庆科技学院学报(自然科学版)》 CAS 2020年第5期86-90,共5页
为提升教学大数据分析的精确度和效率,提出了基于Spark框架的DA优化BP神经网络的算法。通过DA全局寻找BP神经网络的最优权值,以Spark的内存计算机制并行运行DA优化BP神经网络算法。仿真实验结果表明,这种算法用于教学大数据分析可以获... 为提升教学大数据分析的精确度和效率,提出了基于Spark框架的DA优化BP神经网络的算法。通过DA全局寻找BP神经网络的最优权值,以Spark的内存计算机制并行运行DA优化BP神经网络算法。仿真实验结果表明,这种算法用于教学大数据分析可以获得更高的精确度,而且运算耗时较少。 展开更多
关键词 教学大数据分析 分布式算法 BP神经网络 Spark平台
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An Analysis of the Impact of Language Learning Styles on Learning Strategy Preferences
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作者 GAO Pei-xin 《Sino-US English Teaching》 2016年第7期542-551,共10页
This study is designed to explore the impact of LLS (Language Learning Styles) on learning strategy preferences through questionnaire and data analysis. The aim of the study is to make an through investigation of Ch... This study is designed to explore the impact of LLS (Language Learning Styles) on learning strategy preferences through questionnaire and data analysis. The aim of the study is to make an through investigation of Chinese non-English majors' learning styles and their learning strategies in English study, and to analyze the impact of learning styles on learning strategy preferences statistically so as to provide empirical evidence in this field, and then present some implications for college English teaching and learning in Chinese context. This study has significance for pedagogy. Teachers should make language learners aware of their own learning styles and strategy preferences and help them select strategies matching their own style preferences in second language learning. It is hoped that this study can benefit language teachers, learners, and researchers to some extent and can spark more teaching research in the future. 展开更多
关键词 LLS (Language Learning Style) learning strategy IMPACT
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