Alternate Broyden’s method for solving linear least squares problem with multiple right-hand sides     

Guiding Gu 《上海大学学报(英文版)》1997,1(3):196-201

In this paper, we extend the alternate Broyden’s method to the multiple version for solving linear least-square systems with multiple right-hand sides. We show that the method possesses property of a finite termination. Some numerical experiments are given to illustrate the effectiveness of the method.  相似文献   

跳频多址系统盲空时干扰消除算法研究     

刘传清 《襄樊学院学报》2007,28(11):44-47

提出了适合无中心控制的对等网络的盲空时自适应干扰消除算法．本算法利用检测信号功率恒定的特点，采用了两个滤波器组，当其中一个工作时，另一个开始调整权系数，从而提高了收敛速度，避免了跳频频率变化带来的波束估计误差．仿真结果表明，提出的盲自适应算法可以明显提高输出信号SINR增益．  相似文献   

带同类恶化工件机器排序的多用户模型     

丁国生  孙世杰  程明宝 《上海大学学报(英文版)》2007,11(6):541-544

We consider a scheduling problem involving a single processor utilized by two customers with constant deteriorating jobs,i.e.,jobs whose processing times are an increasing function of their starting times.Traditionally,such scenarios are modeled by assuming that each customer has the same criterion.In practice,this assumption may not hold.Instead of using a single criterion,we examine the implications of minimizing an aggregate scheduling objective function in which jobs belonging to different customers are evaluated with their individual criteria.We examine three basic scheduling criteria:minimizing makespan,minimizing maximum lateness,and minimizing total weighted completion time.We demonstrate all the scheduling problems considered are polynomially solvable.  相似文献   

改进语言实验室功能培养学生外语应用能力     

赵立武  丁润田  赵丽君 《衡水学院学报》2002,4(2):61-63

学生学了多年英语,听说能力差,缺乏英语实际应用能力,已成为英语学习的一个通病.改进语言实验室功能,增加相应的现代教学媒体,开展多学科英语教学是培养和提高学生英语听、说、读、写、译综合素质与能力的一个良好的途径.  相似文献   

一种改进的无线传感器网络DV-HOP定位算法     

武雪姣  李雪晴  丁佳静 《教育技术导刊》2019,18(8):52-55

为了解决DV-HOP算法在节点随机部署环境下定位误差较大的缺点,提出一种基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP。该算法通过理想跳数与实际跳数的差值修正平均跳距,结合多通信半径使跳数小数化,利用基于跳数加权的双曲线算法估算未知节点坐标。仿真结果表明,在相同条件设置下,RWHDV-HOP算法定位精度比传统DV-HOP算法提高了25%,比RWDV-HOP算法提高了10%。因此,基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP在节点随机部署环境下能够较大程度上提高节点定位精度。  相似文献   

多重身份下的高校辅导员专业化建设探析     

王璐 《教育教学论坛》2020,(9):16-17

高校辅导员具有管理人员、教师等多重身份。通过分析多重身份下辅导员专业化建设的现状与困境,结合高校辅导员队伍建设的相关要求,提出有效的高校辅导员专业化的建设方式方法,进一步提升辅导员专业素质,稳定高校辅导员队伍。  相似文献   

多元文化融入幼儿园园本课程开发的实践探讨     

黄稳花 《成才之路》2020,(3):96-97

基于时代多元化的发展和凸显幼儿园特色教育的需要,培养幼儿的多元文化意识是幼儿园教育的必然选择。文章基于多元化的园本课程开发的教育实践探索,论述园本特色教育的功能价值,开发一系列合格的园本特色课程,以提升园本课程的文化内涵。  相似文献   

Sex differences in self‐estimation of multiple intelligences among Portuguese adolescents     

Félix Neto  Fátima Ruiz  Adrian Furnham 《High Ability Studies》2008,19(2):189-204

This study investigated the relationship among sex, attitude toward intelligence, and self‐estimation of multiple intelligences for self and parents among Portuguese adolescents in secondary schools. Two hundred and forty‐two adolescents estimated their own and their parents' IQ scores on each of Gardner's 10 multiple intelligences: verbal (linguistic), logical (mathematical), spatial, musical, body‐kinesthetic, interpersonal, intrapersonal, existential, spiritual, and naturalistic. They also answered six simple questions concerning intelligence and intelligence tests. There were various sex differences in self‐estimated IQ: males rated themselves higher on overall, mathematical, spatial, intrapersonal, spiritual, and naturalistic IQ compared with females. Multiple regressions indicated that verbal, logical, and intrapersonal intelligence were significant predictors for self and parents overall IQ estimations. Factor analysis of the 10, the 8, and the 7 self‐estimates scores did not confirm Gardner's classification of multiple intelligences. Males were more likely to believe in sex differences in intelligence than females. Results are discussed in terms of the growing literature in the self‐estimates of intelligence, as well as limitations of that approach.  相似文献   

利用多元智能构建语文阅读教学新模式     

宋瑞斌 《牡丹江教育学院学报》2005,(4):62-62

针对当前语文阅读教学忽视学生主体性的弊端,文章借鉴多元智能理论,对语文阅读教学新模式的构建及实施,对改变学生的学习方式、学生创新精神和实践能力培养的意义进行论述.  相似文献   

基于综合期望值最大化的模糊多属性决策方法   总被引：1，自引：0，他引：1  

彭展声  农秀丽  朱家荣 《南宁师范高等专科学校学报》2006,23(3):105-107

针对只有部分属性权重信息,而属性指标表示形式多样的多属性决策问题,给出了把属性指标表示为梯形模糊数的方法；并提出了通过一个线性规划模型求解最优权重向量,把方案的综合模糊期望值,用以确定方案的优劣次序的决策方法最后,通过实例表明了该方法的实用性和有效性。  相似文献