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题名无约束非线性l_p问题的调节熵方法
被引量：4
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作者
赵建强
李苏北
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机构
徐州工程学院数理学院
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出处
《运筹与管理》
CSCD
北大核心
2011年第5期46-49,共4页
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基金
国家自然科学基金项目(60673047)
徐州工程学院校青年项目(XJY2010201)
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文摘
本文构造了求解无约束非线性lp问题的新方法——调节熵函数法。给出了数值算法,证明了算法的收敛性。通过数值仿真将该方法与求解无约束非线性lp问题的极大熵函数法进行了比较,表明该算法是十分有效的。
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关键词
运筹学
lp问题的新求法
调节熵函数
无约束非线性lp问题
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Keywords
operation research
the new method to solve lpproblems
adjustable entropy function
unconstrained nonlinear lpproblems
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分类号
O221.2
[理学—运筹学与控制论]
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题名试论第二语言习得中的动机
被引量：6
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作者
华厚坤
赵海洪
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机构
江苏大学外国语学院
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出处
《高校教育管理》
2003年第1期83-86,96,共5页
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文摘
学习动机在学习者第二语言习得的过程中起着独特的作用,它是预测第二语言学习成功的一个决定性因素。与之相关的最主要因素有:第二语言习得学习过程中的成就、动机的强度以及特定社会文化因素作用下的动机。外语教育工作者在教学过程中应重视学习者的学习动机,促进其学习动力的不断加强,帮助他们学好第二语言。
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关键词
第二语言习得
学习者
动机
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Keywords
second language acquisition
learners
motivationA Cognitive Approach to Language Learning and EFL Teaching Reform$$$$ SHI Hua zheng (School of Foreign, Suzhou University, Suzhou 215006, China) Abstract: With the development of our social economy, there is no way of solving various problems in EFL teaching with traditional teaching method. the shift between the two extremes actually hinders language teaching. therefore, the new type of teaching methods--cognitive approach takes its inevitable shape. It is playing an increasingly important role in EFL teaching reform. Starting from the learner's cognitive ability and process, the new cognitive approach to language learning takes into account not only general problems in EFL teaching but also cognitive differences between individuals, and applies the relevant theories to the task oriented EFL teaching and tests. It also criticizes the traditional EFL teaching methods with the shift between the two extremes to enhance the effectiveness of language learning. the essay shows clearly the way to answer the various problems in second language teaching from the viewpoint of psychological linguistics and cognitive process. Key words: cognitive approach
EFL teaching reform
teaching method
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分类号
G423.04
[文化科学—课程与教学论]
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