关联交叉口短时交通流可预测性分析及组合预测算法

文中首先根据交叉口交通流参数时间序列的相关性对关联交叉口进行定义,给出关联交叉口短时交通流可预测分析的几个定量指标,以及交通流时间序列最大Lya-punov指数的计算方法;然后提出在短时交通流时间序列的可预测分析基础上,选取一组预测模型并建立基于RBF网络的非线性组合预测模型,提出了关联交叉口短时交通流的组合预测算法;最后对实测短时交通流进行仿真试验,结果表明组合预测方法相对于单项预测方法具有更好的预测性能.     

基于行为目标的课程设置模式——解读泰勒《课程与教学的基本原理》

行为目标是泰勒<课程与教学的基本原理>一书中关键词之一.它是制定教育目标、选择学习经验、组织学习经验、评价教育目标的核心.在<课程与教学的基本原理>中,泰勒详细介绍了行为目标的相关概念,以及与它相关的需要与兴趣等因素和基于行为目标的评估模式.     

基于灰色关联分析的生产作业系统环境质量评价方法及应用研究

本文应用灰色系统理论中的灰色关联度模型对生产作业系统环境质量进行综合评价，并结合实例与模糊综合评判法进行了比较。实例表明，用灰色关联度模型对作业环境质量进行评价更趋合理和有效．     

果实成熟与多聚半乳糖醛酸酶基因的研究进展

对与果实成熟相关基因多聚半乳糖醛酸酶 (PG)基因的筛选、鉴定、表达及基因工程的研究进展作一个简要评述     

从4Ps到3Rs+4Ps──对经典营销理论的再思考

随着社会环境与市场环境的剧变,专家断言：世界经济开始进入了“服务经济时代”,而服务营销理念的提出,还需要在营销理论的深度上获得支撑．本文因此而尝试对经典营销理论进行审视和思考：从４Ｐｓ到３Ｒｓ＋４Ｐｓ。     

川东高陡构造成因地质模式与含气性分析

川东高陡构造位于四川盆地东部 ,由一系列 NE-NNE向的隔档式褶皱组成。其构造变形经历了由隔槽式褶皱到“两背一断”,最终形成隔挡式褶皱的演化过程。在“两背一断”先存构造研究基础上 ,按继承发展的观点 ,综合运用伸展构造、反转构造、断层相关褶皱等构造新理论 ,系统探讨了川东高陡构造形成演化的成因地质模式 ,结合志留系主力生烃层的生气高峰期 ,对地腹不同成因类型的构造圈闭含气性进行了分析。     

谈高师美术教育的"素质教育"问题

探讨高师美术教育中"素质教育"的相关问题.     

关联分析技术在IDS中的应用

关联分析技术能从大量的数据中挖掘出许多数据属性之间隐藏的规律或关联知识,目前已被应用到入侵检测系统(Intrusion Detection System,简称IDS)中,用来从网络数据中挖掘出正常和攻击模式.对关联分析技术做了阐述,并对Apriori算法进行了两点改进,以提高效率,并给出相关的实验数据.     

ON-LINE PREEMPTIVE SCHEDULING ON UNIFORM MACHINES

1 IntroductionWe consider the problem of sChedallng a 1ist (J1, J2,' .) of on-line jobs preemPtive1y onm unifornily related machines. In suCh a setting, the jobs arrive one by one. Job Jj becomesknown (with its etistence and its processing time Pj ) only When job Jj--1 has already beenscheduled, which gives rise to the name online schedallng. Job processing can be preemPtive,i.e., the processing of any job can be interruPted and resumed later. The machines are paralleI,which allows any …     

Does the FRN in brain potentials reflect motivational/affective consequence of outcome evaluation?

Electrophysiological studies have utilized event-related brain potentials (ERPs) to investigate neural processes related to the evaluation of the outcome of behavioral performance or to the evaluation of external feedback. The feedback-related negativity (FRN) in brain potentials has been shown to be sensitive to information indicating monetary loss or negative feedback. Since monetary loss usually indicates both the consequence of previous performance and the reward value of stimuli, it is controversial whether the FRN reflects the cognitive process of error detection per se and/or the motivational/affective process related to the subjective evaluation of the error. This study manipulated the motivational/affective significance of negative feedback by penalizing errors in a context-dependent way in a line judgment task. Participants could lose more money in the loss incentive condition or win less money in the win incentive condition if their subsequent judgment of line segments was less accurate, whereas they could receive performance feedback but without monetary incentive in the neutral condition. Results showed that the size of the FRN effect as well as the size of the P300 effect, as assessed by comparing brain responses to the error trials with the responses to the correct trials, increased linearly over the loss, neutral, and win conditions, suggesting that the FRN is sensitive to the motivational/affective evaluation of the performance outcome.