2002～2011年宁夏疾病预防控制中心已发论文计量分析

[目的]了解宁夏疾病预防控制中心学术论文产出力及影响力,为本单位科研管理、重点学科建设和人才培养等方面提供参考依据。[方法]对中心2002～2011年在国内学术期刊上发表的科技论文情况进行文献计量分析。[结果]2002～2011年中心合计有410篇论文发表在国内76种期刊上发表,其中:有158篇论文发表在核心期刊上,占已发论文总数的38.54%;卫生监测与检验、疾病预防与控制、地方病预防与控制、公共卫生管理方面的论文分别占26.34%,26.10%,17.80%和15.61%;被引频次超过6次的论文共有22篇,占发文总数的5.37%;获得自治区级优秀论文奖的论文5篇,占发文总数的1.22%;刊登栏目为论著、调查研究、实验研究、资料分析和经验交流的分别占14.88%、17.07%,11.95%、18.25%和26.10%;[结论]中心要不断加强学术研究,学术论文的质量有待提高。     

Integration of hybrid wireless networks in cloud services oriented enterprise information systems

This article presents a hybrid wireless network integration scheme in cloud services-based enterprise information systems (EISs). With the emerging hybrid wireless networks and cloud computing technologies, it is necessary to develop a scheme that can seamlessly integrate these new technologies into existing EISs. By combining the hybrid wireless networks and computing in EIS, a new framework is proposed, which includes frontend layer, middle layer and backend layers connected to IP EISs. Based on a collaborative architecture, cloud services management framework and process diagram are presented. As a key feature, the proposed approach integrates access control functionalities within the hybrid framework that provide users with filtered views on available cloud services based on cloud service access requirements and user security credentials. In future work, we will implement the proposed framework over SwanMesh platform by integrating the UPnP standard into an enterprise information system.     

云平台环境下数字化校园建设的新思考

加强数字化校园建设,实现资源和信息共享,提高教学、管理、科研和人才培养现代化水平,是高校教育管理者十分关注的话题。以智能数字化校园的实际需求为依据,充分利用物联网主要技术特点,采用云技术、RFID技术、EPC（电子产品代码）编码技术、数字传感器等关键性技术,在基于物联网的云平台之上研究并设计智能数字化校园的应用方案,以期更加高效、合理地解决校园资源整合、共享、管理等问题,为广大师生的工作、学习和生活提供更加优质、高效、便捷的服务。     

基于小波方向滤波的有云层遥感图像舰船检测方法

提出了小波分析和方向滤波相结合的有云遥感图像目标检测方法。首先对原始遥感图像进行小波分解,采用比率-平均边缘检测法检测人造目标的边缘方向,在该方向上进行Frost滤波,有效抑制云层干扰的同时突出了人造目标及其边缘信息;然后进行阈值分割并剔除大块云层,根据区域的平均边缘梯度剔除小块云层,实现了有云遥感图像的舰船目标检测。实验证明,该方法能减少遥感图片云层对舰船检测的影响,并具有较高的目标检测率。     

基于情感分析混合模型的用户评论主题分析——以vivo手机为例

为了帮助商家了解用户需求和产品问题,进一步提升产品和服务质量,对vivo手机评论数据进行基于关键词的词云图分析、社会语义网络分析、舆情时间序列可视化分析,挖掘用户关注焦点与手机特征的内在联系和用户情感倾向趋势;然后对评论数据进行基于LDA的主题特征分析,继而提出一种基于Word2vec和SVM、LDA的混合算法模型,挖掘用户正向和负向情感评论的潜在主题,得到不同情感倾向下用户对vivo手机不同方面的反映情况。分析结果表明,基于混合算法的挖掘结果比基于关键词的可视化分析、基于LDA的主题分析更清晰,更具准确性,为商家提供的建议更有意义。     

Scheduling multimedia services in cloud computing environment

Currently, security is a critical factor for multimedia services running in the cloud computing environment. As an effective mechanism, trust can improve security level and mitigate attacks within cloud computing environments. Unfortunately, existing scheduling strategy for multimedia service in the cloud computing environment do not integrate trust mechanism when making scheduling decisions. In this paper, we propose a scheduling scheme for multimedia services in multi clouds. At first, a novel scheduling architecture is presented. Then, We build a trust model including both subjective trust and objective trust to evaluate the trust degree of multimedia service providers. By employing Bayesian theory, the subjective trust degree between multimedia service providers and users is obtained. According to the attributes of QoS, the objective trust degree of multimedia service providers is calculated. Finally, a scheduling algorithm integrating trust of entities is proposed by considering the deadline, cost and trust requirements of multimedia services. The scheduling algorithm heuristically hunts for reasonable resource allocations and satisfies the requirement of trust and meets deadlines for the multimedia services. Detailed simulated experiments demonstrate the effectiveness and feasibility of the proposed trust scheduling scheme.     

Compliance Costs of Corporate Income Taxation in Singapore

This study is the second in a series of studies investigating tax compliance costs incurred by public-listed companies. We found evidence of a size effect which is a predominant finding of similar studies. The size effect was more pronounced when absolute measures of costs were used than when a relative measure, cost/sales turnover, was used. Additional evidence was found of limited success relating to the IRAS's moves to simplify the tax system. Specifically, only large companies with sales turnover exceeding $500m benefited and considerably reduced their overall compliance costs. Most of the decrease was a result of the computational component of compliance costs. This resulted in the gap in absolute costs narrowing between Group 3 and any of the other categories of companies. There was also greater reliance on external professionals, the smaller the company. Views elicited indicate that more could be done to increase accessibility to IRAS publications for Group 1 and Group 2 companies.     

思维进化算法在估计瞬时单位线参数中的应用

文章结合思维进化算法（Mind Evolutionary Computation,MEC）,采用加权残差绝对值和最小准则对瞬时单位线模型参数进行估计,实例表明使用此方法率定的参数还原的径流过程与实测径流过程拟合优于其他方法。     

Inter-firm relational resources in cloud service adoption and their effect on service innovation

This study examines (1) inter-firm relational resources for cloud service adoption and (2) their effects on service innovation. A research model and the related hypotheses are developed based on resource-advantage (R-A) theory that combines inter-firm relational resources identified in theoretical and empirical research as important antecedents of cloud service adoption and its effect on service innovation. This study collects data from 165 managers from service firms in Taiwan. The results show that resources, including reliability, cost, and compatibility significantly affect a firm’s cloud service adoption. Furthermore, the adoption of cloud service significantly contributes to service innovation. The findings add to the current understanding of service innovation in two important ways. First, drawing on R-A theory, this study is among the first attempts to identify inter-firm relational resources (reliability, cost, compatibility, and customer orientation) for cloud service adoption and their effect on innovation performance. Second, this study introduces cloud services as effective technological platforms for a firm and its business partners to share, integrate, and reciprocate information, knowledge, and experience for service innovation.     

利用云计算建立进出口信息管理系统的探讨

本文建议国家相关主管部门建立基于云计算的进出口信息管理系统，按照国家对进出口信息系统管理的要求，将整个进出口企业、报关报检代理、海关、检验检疫、外汇管理部门、口岸办等各相关进出口职能部门的内部与外部数据库连接起来，随时掌握数据并实时更新，以利于进出口相关各个部门之间共享进出口的各项信息、密切合作，加强对进出口业务的管理，促进我国进出口贸易的发展。