动态时间弯曲距离精确计算的Dijkstra方法

将动态时间弯曲距离（DTW）的差异矩阵一一对应于点阵,按DTW定义的行走规则对该点阵连线定向,使所对应点阵成为一个有向图,然后使用一个加权技巧对该有向图的边加权后得到一个加权有向图,于是把求DTW的精确计算问题等价地转化为求一个有向图起点到终点的最短路长,从而使图论中求两点间最短路径的方法如目前公认的经典Dijkstra算法均可用于求DTW,因此间接地找到了精确计算DTW的一个新方法.     

一种高效的P2P系统

目前非结构P2P系统所采用的两层聚类结构HCPON存在的问题是超级节点仅采用单一的备份节点作为冗余备份,使得系统健壮性的提高很有限。由此提出基于三层聚类结构的高效P2P系统（PTLCA）,根据节点的拓扑优先级等对节点进行分层处理和聚类,同HCPON相比,PTLCA在性能上有显著的提高,能够满足大规模流媒体服务的需求。     

An influence maximization method based on crowd emotion under an emotion-based attribute social network

Most research on influence maximization focuses on the network structure features of the diffusion process but lacks the consideration of multi-dimensional characteristics. This paper proposes the attributed influence maximization based on the crowd emotion, aiming to apply the user’s emotion and group features to study the influence of multi-dimensional characteristics on information propagation. To measure the interaction effects of individual emotions, we define the user emotion power and the cluster credibility, and propose a potential influence user discovery algorithm based on the emotion aggregation mechanism to locate seed candidate sets. A two-factor information propagation model is then introduced, which considers the complexity of real networks. Experiments on real-world datasets demonstrate the effectiveness of the proposed algorithm. The results outperform the heuristic methods and are almost consistent with the greedy methods yet with improved time performance.     

计算机软件系统测试方案研究

结合从事软件系统测试工作的实践经验，总结归纳出一套软件系统测试的基本方案，包括建立测试流程，有效地组织测试人员，合理地选择测试手段，安排测试任务，规范测试程存等等，帮助软件开发和测试人员提高测试效率，从而提高软件系统的质量和可靠性。     

Theoretical study of NO adsorbed on the surface of TiO2(110) cluster model

The chemisorption properties of N18O adsorption on TiO2(110) surface were investigated by experimental and theoretical methods. The results of temperature programmed desorption (TPD) indicated that the temperatures of the three desorption peaks of the main N2 molecules were at (low) temperature of 230 K, 450 K, and (high) temperature of 980 K. This meant that N18O decomposed and recombined during the process of N2 desorption after N18O was exposed. Analysis of the stable combination and orbital theory calculation of the surface reaction of NO adsorption on the TiO2(110) cluster model showed that there was clear preference for the Ti-NO orientation.     

Using Reader Profiles as Snapshots to Investigate Students' Reading Performance

Explanatory patterns regarding situational differences in reading comprehension performance may be best captured by multidimensional reader profiles. Data from 56 third- and fifth-grade students were collected to investigate the applicability, scope, and convergent validity of a reader profiling scheme based on Alexander's (2005) reader profile framework and then compared with results from a hierarchical cluster analysis and a Bayesian cluster analysis. The reader profiling methodology used identified examples of all six of Alexander's reader profiles at each grade level, along with an additional hypothesized profile, the interest-reliant reader. The reader profiles related as expected to reading outcomes on a researcher-designed comprehension measure and a standardized comprehension assessment, with a few exceptions, and explained variance in those outcome measures better than the use of cluster analysis, except for the third-grade standardized scores. Finally, interesting differences emerged in the proportions of elementary students assigned to each profile across the grade levels.     

资源型产业集群:概念与形成机理

西部地区资源丰富但生态脆弱、经济发展相对落后。产业集群是促进区域经济发展的有效方式,进入重化工业阶段,资源型产业对中国经济发展的作用越来越大。培育资源型产业集群对西部地区实现全面、协调、可持续发展具有重要作用。明晰资源型产业集群的概念;探究资源型产业集群的形成机理是进一步研究资源型产业集群的前提。     

湘潭盆地综合开发分区的确定及其开发问题探讨

本文突破了传统的农业区划模式,运用定量的数学分析方法得出盆地内部自然和人文方面的两个不同环境类型体系,然后用类型组合的定性分析方法将盆地划分为四个开发区,并就各开发区的发展作了初步的探讨。     

模糊聚类分析法在我国国际旅游市场中的应用

应用模糊聚类分析法,对我国8个地区的国际旅游接待市场进行聚类分析。在建立模糊等价关系的基础上,根据不同的需要,得到不同的分类结果,并结合旅游产品评价四象限法,对各个聚类对象进行分析。     

新疆十五个地州市经济综合实力评价

本文用数理统计方法中的主成分分析和聚类分析法,借助SAS统计软件,对2000年我区15个地州市的主要经济指标进行了综合评价,给出了经济综合实力排序,并指出了制约其经济发展的一些因素。