基于模糊决策的风力发电产业评价研究

根据风力发电技术产业的特点,构建改进层次分析与模糊一致矩阵相结合的方案决策数学模型,该模型既可以减少确定判断矩阵的盲目性,又可以避开评价体系中各等级间的隶属度确定问题,使评价结果更加可靠,适合于信息尚不完整、受主观因素影响较强的评价。实例验证了这一模型的合理性、可行性和有效性,具有实用价值。     

Image categorization using a semantic hierarchy model with sparse set of salient regions

Image categorization in massive image database is an important problem. This paper proposes an approach for image categorization, using sparse set of salient semantic information and hierarchy semantic label tree （HSLT） model. First, to provide more critical image semantics, the proposed sparse set of salient regions only at the focuses of visual attention instead of the entire scene was formed by our proposed saliency detection model with incorporating low and high level feature and Shotton＇s semantic texton forests （STFs） method. Second, we also propose a new HSLT model in terms of the sparse regional semantic information to automatically build a semantic image hierarchy, which explicitly encodes a general to specific image relationship. And last, we archived image dataset using image hierarchical semantic, which is help to improve the performance of image organizing and browsing. Extension experimefital results showed that the use of semantic hierarchies as a hierarchical organizing frame- work provides a better image annotation and organization, improves the accuracy and reduces human＇s effort.     

Ranking Approach for the User Story Prioritization Methods

The AHP （analytic hierarchy process） has been applied in many fields and especially to complex engineering problems and applications. AHP is capable of structuring decision problems and finding mathematically determined judgments built on knowledge and experience. This suggests that AHP should prove useful in agile software development, where complex decisions occur routinely. This paper describes a ranking approach to help stakeholders select the best prioritization method for prioritizing the user stories.     

天津市于桥水库饮用水源地保护对策研究

于桥水库作为天津市最重要的饮用水水源地,其库区水体氮、磷浓度接近国家标准阈值,亟需采取保护防治措施缓解水体氮、磷污染负荷压力。本文基于水库型饮用水水源地环境保护技术框架的一般思路,开展了对于桥水库水环境治理技术方案的分析研究。首先,使用GWLF(普适流域负荷函数)模型对水库周边流域污染源负荷进行识别与负荷解析;之后,基于最佳管理实践(BMP)和低影响开发(LID)的理念和方法,同时根据于桥水库的具体实际情况,提出相应的工程治理措施,并采用BATHTUB模型对各工程措施进行环境效益评估计算;最后使用模糊层次分析法(FAHP)对各工程措施进行择优分析,得出最佳治理实施方案。     

基于时态层次链的Data Cube 多版本维护方案

针对Data Cube的模式变动造成的多版本问题,对时态聚集关系与时态层次链进行了形式化描述,并基于这些关系实现了多个版本的Data Cube的统一生成算法,不仅可以高效地进行Data Cube多个版本的维护,而且在OLAP查询也可以基于时态层次链来执行,从而提高系统的整体效率。     

Dominance-based rough set approach and knowledge reductions in incomplete ordered information system

Many methods based on the rough set to deal with incomplete information systems have been proposed in recent years. However, they are only suitable for the incomplete systems with regular attributes whose domains are not preference-ordered. This paper thus attempts to present research focusing on a complex incomplete information system—the incomplete ordered information system. In such incomplete information systems, all attributes are considered as criterions. A criterion indicates an attribute with preference-ordered domain. To conduct classification analysis in the incomplete ordered information system, the concept of similarity dominance relation is first proposed. Two types of knowledge reductions are then formed for preserving two different notions of similarity dominance relations. With introduction of the approximate distribution reduct into the incomplete ordered decision system, the judgment theorems and discernibility matrixes associated with four novel approximate distribution reducts are obtained. A numerical example is employed to substantiate the conceptual arguments.     

Exaggerating Character Motions Using Sub‐Joint Hierarchy

Motion capture cannot generate cartoon‐style animation directly. We emulate the rubber‐like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon‐like movement. We achieve this using trajectory‐based motion exaggeration while allowing the violation of link‐length constraints. We extend this technique to obtain smooth, rubber‐like motion by dividing the original links into shorter sub‐links and computing the positions of joints using Bézier curve interpolation and a mass‐spring simulation. This method is fast enough to be used in real time.     

分层异构控制软件的构件化建模和设计

在分离控制软件计算功能成分与交互行为成分的基础上,提出了一种异构控制软件构件化建模设计方法。采用层次化思想实现软件构架,管理异构控制模型,实现构件与设计模式复用。引入“管理器”的概念来描述构架如何将一组原子构件的计算成分集成为支持异构模型的复合构件。在分布式实时平台上通过实现简化的构件化分层异构控制软件验证该方法的可行性。     

一种基于模糊层次分析法的外包系统信息安全评价模式的研究

面向外包信息系统,提出了一种基于模糊层次分析法的信息安全评价模式.首先分析了外包系统信息安全评价的特性,明确了选择合理评价方法的逻辑基础.接着深入研究了模糊层次分析法在外包系统信息安全评价中的应用理论.最后运用实例验证了模糊层次分析法在评价外包系统信息安全性时的实用性和可行性.     

WSN中层次性簇聚路由选择算法中的一种优化策略

对层次性簇聚路由算法,提出了一种优化策略。具体实施是在已选出的多个簇首中,以能量均衡损耗和节能为依据,设计一个优化路由机制．选出一个二级簇首,由该二级簇首与汇点通信。通过分析,该策略能够有效的降低网络的能量损耗,大大延长网络的生命周期。