A MD异步加载引擎设计与实现     

陈南平 《人天科学研究》2014,(11):105-107

采用一种改进的核心算法实现AMD异步加载引擎,该算法相对于传统的算法具有更强的可扩展性和可维护性。同时,基于AMD的核心算法框架实现其基本类库,并对AMD规范的利弊进行了分析。  相似文献   

N ode ．j s高效分布式实时应用研究     

刘生建  罗林  杜剑 《人天科学研究》2014,(12):25-28

Node ．js应用平台的出现,为大数据实时应用提供了一个很好的可选技术方案。研究了分布式实时应用处理中任务的抢占式处理策略和双路由策略,并探讨了在Node ．js平台上利用Redis或ZeroM Q技术实现高效可靠分布式实时应用的方法。  相似文献   

四元低相关区序列偶集的构造研究     

余望鸿  柯品惠 《南平师专学报》2013,(5):40-45

提出了两种四元低相关区序列偶集的构造方法：一种方法是基于理想的二元序列偶,通过逆Gray映射构造四元序列偶.然后通过移位序列,利用交织技术生成长的LCZ序列偶,再运用正交矩阵偶,将其扩展为四元低相关区序列偶集;另一种方法是利用同样方法构造四元序列偶,然后与正交矩阵偶相乘,生成两个新的矩阵,再将该两矩阵对应行进行组合,构造四元低相关区序列偶集.  相似文献   

Exploring the organizational capacity and organizational problems of disability sport clubs in Germany using matched pairs analysis     

《Sport Management Review》2014,17(1):23-34

Previous research examining people with disabilities has mainly looked at participation barriers and has formulated implications for sport providers; however, the supply side has been largely neglected. The purpose of this study was to explore the organizational capacity and organizational problems of clubs that provide sport for people with disabilities (referred to as ‘disability sport clubs’). The conceptual model of organizational capacity was used as a theoretical framework. Within a German sport club sample (n = 19,345), a sub-sample of disability sport clubs (n = 521) was identified. The idea was to compare disability sport clubs with other sport clubs; however, comparing a small sub-sample with a large rest-sample may inevitably lead to statistical significance. Therefore, a matched pairs analysis was applied. Since disability sport clubs were significantly larger in terms of members and sports and were located in bigger communities, statistical twins were identified in the dataset that were similar in size and location. The results showed that clubs providing sport for people with disabilities are not specific disability sport clubs. Evidently, these are large multi-sports clubs that have greater capacity for catering for older adults and low-income people, for strategic planning, and for establishing relationships with other institutions in the community than their statistical twins. The regression results indicated that strategic planning significantly contributed to the reduction of several organizational problems of disability sport clubs. The findings have implications for policy makers, club management, and sport management scholars.  相似文献   

AHAB: Aligning heterogeneous knowledge bases via iterative blocking     

Ling Chen  Weidong Gu  Xiaoxue Tian  Gencai Chen 《Information processing & management》2019,56(1):1-13

With the development of information extraction, there have been an increasing number of large-scale knowledge bases available in different domains. In recent years, a great deal of approaches have been proposed for large-scale knowledge base alignment. Most of them are based on iterative matching. If a pair of entities has been aligned, their compatible neighbors are selected as candidate entity pairs. The limitation of these methods is that they discover candidate entity pairs depending on aligned relations, which cannot be used for aligning heterogeneous knowledge bases. Only few existing methods focus on aligning heterogeneous knowledge bases, which discover candidate entity pairs just for once by traditional blocking methods. However, the performance of these methods depends on blocking keys heavily, which are hard to select. In this paper, we present an approach for aligning heterogeneous knowledge bases via iterative blocking (AHAB) to improve the discovery and refinement of candidate entity pairs. AHAB iteratively utilizes different relations for blocking, and then matches block pairs based on matched entity pairs. The Cartesian product of unmatched entities in matched block pairs forms candidate entity pairs. By filtering out dissimilar candidate entity pairs, matched entity pairs will be found. The number of matched entity pairs proliferates with iterations, which in turn helps match block pairs in each iteration. Experiments on real-world heterogeneous knowledge bases demonstrate that AHAB is able to yield a competitive performance.  相似文献   

R~3上相交线偶与凸体相交的几何概率问题     

范媛媛 《滁州学院学报》2009,11(6):98-100

利用在平面中建立的凸体的双弦幂积分理论,研究了空间中凸体的双弦幂积分的一些性质,并在此基础上,讨论了空间上相交线偶与凸体相交这一几何概率问题。  相似文献   

WSN中一种改进的三维DV-Hop节点定位算法     

徐燕  汤文亮 《科技广场》2012,(1):97-99

本文在研究传统的DV-Hop3D算法基础上提出了一种新无线传感器网络定位算法。新算法在算法的第一阶段设置了跳数阈值参数以减小通信开销,并且在算法的第二阶段用可选择的平均跳距代替固定的平均跳距来计算未知节点到锚节点的距离,最后用Matlab7.1进行了仿真。仿真结果表明,该改进算法可明显提高节点定位精度,并且能有效降低网络通信量。  相似文献   

粒子群优化算法在无线传感节点的部署应用探讨     

纪芩  俞智慧 《科技广场》2012,(9):19-23

群智能算法良好的自适应性与移动传感节点部署所需的组织性具有相似性。作为群智能算法的一种,粒子群优化算法具有结构简单、实现容易、易于收敛等特点。无线传感网络研究的关键问题之一是如何动态部署移动节点,达到提高无线传感网络覆盖率和降低节点移动能耗。本文介绍了粒子群优化算法与无线传感节点部署的相关知识,并对粒子群优化算法应用于无线传感节点部署问题进行了探讨。  相似文献   

基于专利交叉影响分析法的技术影响关系研究     

黄斌  黄鲁成  吴菲菲  苗红 《科技管理研究》2015,(15)

针对专利交叉影响分析法存在的不足,从3个方面进行修正与完善,以太阳能聚光器技术领域中的5种技术为研究对象,从德温特专利数据库采集数据对技术影响关系进行实证分析。研究结果表明,改进后的专利交叉影响分析法不仅可以明确地判断技术对的影响类型和定量地划分技术对影响关系并对其进行分析,而且还可以探讨单个技术影响的差异。研究结果可以为技术管理实践提供理论参考依据。  相似文献   

Correlation study of Carcino Embryonic Antigen &; Cancer Antigen 15.3 in pretreated female breast cancer patients     

K. Thriveni  Lakshmi Krishnamoorthy  Girija Ramaswamy 《Indian journal of clinical biochemistry : IJCB》2007,22(1):57-60

Carcino Embryonic Antigen (CEA) and Cancer Antigen 15.3 (CA15.3) are the most common tumor markers in breast cancer patients. Measurement of circulating tumor markers is a non-invasive quantitative method. Serum levels of CEA and CA 15.3 were studied in female breast cancer patients prior to treatment. To evaluate the utility of these markers, 207 Breast carcinoma patients belonging to all the stages were considered. Healthy age matched 75 female individuals formed the control group. The serum levels of CEA and CA 15.3 were analyzed by Enzyme Linked Immunosorbent Assay (ELISA). Results were taken and compared with stages, tumor size, node and grade. The serum CA 15.3 levels were significant in all the study parameters whereas serum CEA levels showed no significant changes with any of the parameters. Measurement of serum CA 15.3 levels showed significant correlation (24.8%) with advanced stages and larger tumor sizes, whereas serum CEA levels did not show any significant correlation in breast cancer patients prior to treatment.  相似文献