共查询到19条相似文献，搜索用时 171 毫秒
1.
陈雪东 《湖州师范学院学报》2003,25(3):20-23
保单组合的赔付次数及赔付额是非寿险精算研究的一项基本内容，对于两类非同质保单组合，现讨论在赔付次数采用混合泊松分布拟合的情况下赔付额分布的计算，并给出了相应的迭代公式。 相似文献
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线性规划非单调一阶段算法 总被引：2，自引：0，他引：2
为了获取计算的高效率，有必要修正单纯形算法的原则．本提出了一个新的单纯形一阶段算法．与传统单纯形算法不同的是，新算法不仅不要求目标函数值单调变化，且在一阶段的迭代过程中也不必保持变量的可行性，而是采用纯组合的方法去达到可行．这样摆脱了迭代时的比值检验，减少了每次迭代的计算工组量．理论分析及数值计算结果表明新算法的前景令人鼓舞． 相似文献
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《湖州师范学院学报》2004,26(6):136-140
说明:《湖州师范学院学报》为综合版双月刊,全年出版6期,其中第1、2期为自然科学内容,第3、4、5、6期为哲学社会科学内容。数学研究作 者 年 期拟共形映射和Lipschitz条件褚玉明 2004 1……………………………………………………………………………………从Hardy空间到Bers型空间的加权复合算子李颂孝 2004 1…………………………………………………………………具有多滞后的时变区间动力系统的指数稳定性宋乾坤 2004 1………………………………………………………………非同质保单组合赔付额分布的迭代算法陈雪东 2004 1……… 相似文献
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非奇异H矩阵的迭代判定算法 总被引：1，自引：1，他引：0
刘大平 《内江师范学院学报》2008,23(12)
非奇异H矩阵在许多领域都发挥着重要作用,但在实用中判别H矩阵却是困难的.给出了判定非奇异H矩阵的迭代算法,算法的迭代速度更快.数值算例说明了该算法是有效的. 相似文献
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在一致凸Banach空间中，建立了修改的Ishikawa迭代算法强收敛到渐近非扩张映像不动点的收敛定理。文章分两部分，第一部分给出了几个引理；第二部分运用迭代算法建立了强收敛定理，该定理给出了渐近非扩张映像不动点的一种逼近方法。 相似文献
6.
对解非线性方程的ODE方法进行了分析，利用梯形公式构造了一种求解非线性方程的迭代算法，该算法不需计算导数值，在迭代过程中不需改变步长，有较大的初值选择范围，并以数值试验进行了验证。 相似文献
7.
采用二分法预报、改进的Aitken迭代校正的方法，构造了一种非线性方程求根的一种新算法。新算法在迭代过程中不用计算导数，且二阶收敛。数值试验表明，该算法具有较高的精度和较大的初值选择范围。 相似文献
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标准粒子群算法（PSO）容易陷入局部最优解,导致收敛速度慢、效率低．文章结合遗传算法提出了改进的组合粒子群算法,在每次迭代后应用随机函数随机选择下一次迭代所使用的变异策略或交叉策略．由测试数据表明组合粒子群算法在求解TSP时性能上有很大提高． 相似文献
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应用非扩张映射的黏性逼近方法,在Hilbert空间中建立了一种新的求解平衡问题非扩张映射的不动点问题及变分不等式问题的公共解的迭代算法,且在参数满足一定条件下给出由该迭代算法生成的迭代序列的强收敛定理. 相似文献
11.
Catherine De Rijdt Eva Tiquet Filip Dochy Maurice Devolder 《Teaching and Teacher Education》2006,22(8):1084-1093
Although many authors claim benefits of teaching portfolios for use in higher education settings, there are few empirical studies that investigate these benefits.This article deals with the question of whether teaching portfolios are used in higher education, and if so, which effects they bring about. Furthermore, the attitude of teachers towards the use of teaching portfolios is examined. The study shows that currently not very many teachers are using teaching portfolios. When used, a teaching portfolio is an instrument that can bring about some important positive effects. Respondents report that, due to the use of portfolios, they were stimulated to reflect on their own teaching, to actualise the learning content, to improve their course materials, to search for alternative educational methods, etc. When teachers are using teaching portfolios it is important that, besides any negative effects, they also experience positive effects. If this is not the case, teachers will see the teaching portfolio only as an extra administrative inconvenience. 相似文献
12.
《Educational Assessment》2013,18(3):237-259
This article reports on the interrater reliability of language arts portfolio assessment in the primary grades of the Rochester, New York, school system. This assessment was based on a sample of approximately 400 primary-grade language arts portfolios that were rated by two raters: the student's classroom teacher and an external reviewer. Reliabilities for student portfolios ranged from .58 for Grade 1 reading portfolios to .79 for kindergarten reading portfolios. Many of the reading portfolios could not be rated by the external reviewer, revealing problems both with the portfolio policies of the district and with the classroom-level implementation. The findings showed that primary-grade classroom teachers can reliably rate their own students' work, but tensions exist if a single portfolio system is intended both to provide classroom teachers with information about their students and to supply accountability information to administrators. 相似文献
13.
In this paper, we use the development of the Australian Professional Standards for Teachers (APST) as an illustrative case to examine how national schooling reforms are assembled in Australia’s federal system. Drawing upon an emerging body of research on ‘policy assemblage’ within the fields of policy sociology, anthropology and critical geography, we focus on interactions between three dominant ‘component parts’ in the development of the APST: the Australian federal government; New South Wales state government agencies; and the Organisation for Economic Cooperation and Development. While policies like the APST claim to be national in form and scope, our analysis suggests ‘the national’ is much more disjunctive and nebulous, constituted by a heterogeneous and emergent assemblage of policy ideas, practices, actors and organisations, which often reflect transnational traits and impulses. We thus see national reforms such as the APST as having a phantom-like nature, which poses challenges for researchers seeking to understand the making of national policies in federal systems. 相似文献
14.
成长记录袋的创建与使用 总被引：9，自引：0，他引：9
赵德成 《天津师范大学学报(基础教育版)》2003,4(4):38-42
成长记录袋有意识地收集学生的作品或有关证据,以反映学生在某一领域的努力、进步与成就。任课教师创建和使用成长记录袋一般要经过明确目的和用途、对内容选择提供指导、明确学生角色、确定评分程序和标准、交流和使用等几个主要步骤。在当前的评价实践中,学校和教师还要注意谨慎选择成长记录袋的应用领域、将成长记录袋的应用与教学有机结合、给教师和学生足够的自主权并加强教师培训。 相似文献
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吴凡 《荆州师范学院学报》2005,28(5):49-51,94
从民事诉讼当事人的角度看，诉对当事人的价值有实体价值和程序价值之分，其产生基础在于与之相对应的财产中心正义观和主体中心正义观。当事人之诉除了追求实体价值之外，还注重追求程序价值。对此，在民事诉讼法改革的道路上，应当以诉的价值为一个独立视角，紧密关注诉对当事人的价值如何实现的问题，谨慎设计对诉的处理程序，并在法律制度上予以保证。 相似文献
17.
离婚损害赔偿请求权是一种基于法律直接规定的请求权。在责任认定上必须把握离婚损害赔偿制度的构成要件。离婚损害赔偿制度在目前仍然存在不少缺陷,因此,在程序上,应明确离婚损害赔偿请求权是一项实体权利;对因婚外同居造成当事人损害的赔偿性质、标准、幅度、责任主体范围等尽快做出明确规定;从法律上对无过错方的举证责任适当放宽条件,或者在特定的情况下适用举证责任倒置;应当制定相应的法律措施预防逃避离婚损害赔偿责任的发生。 相似文献
18.
We describe an editor geared to recursive Prolog procedures. It is similar to the structure editors built for many programming languages, except that instead of just ensuring the correctness of the syntax of the procedures built by the editor, the editor also ensures the correct use of recursion. By correct here we mean that the recursive procedure is guaranteed to terminate and to be well-defined. Within these constraints we have tried to ensure that the range of procedures that can be built is as complete as possible. 相似文献
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无独立请求权第三人制度是我国民事诉讼程序的重要组成部分,我国法律的相关规定却极其简略,在理论和实务中引起了广泛争议。无独立请求权第三人是否属于案件当事人,在诉讼程序中有何种权利义务,法院直接判决其承担民事责任是否合理,对我国无独立请求权当事人制度的缺陷予以分析,同时与外国类似制度相比较,有助于探究该制度的改革和完善途径。 相似文献