J. Convergence Inf. Technol.最新文献_第8页

Influence of Philanthropy Donation on Competitive Advantage: From the Perspective of Corporate Social Capital 慈善捐赠对竞争优势的影响:基于企业社会资本的视角

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.26

Xueying Tian

引用次数: 5

Determing Performance of Choreography-based Composite Services 确定基于编排的组合服务的性能

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.12

Yunni Xia, Z. OuYang, Yanxin Wu, Ruilong Yang

{"title":"Determing Performance of Choreography-based Composite Services","authors":"Yunni Xia, Z. OuYang, Yanxin Wu, Ruilong Yang","doi":"10.4156/JCIT.VOL5.ISSUE8.12","DOIUrl":"https://doi.org/10.4156/JCIT.VOL5.ISSUE8.12","url":null,"abstract":"Web Service Choreography Description Language is a main-stream standard for the description of peer-to-peer collaborations for the participants for service composition. To predict the performance of composite service processes gives the way to tell whether the process meet the non-functional requirements, and to choose the process with better performance from those with identical function. Unfortunately, very limited research attention is paid to performance of service choreography. In this paper, we propose a translation-based approach for performance prediction of composite service. To translate a composite service into a state-transition model for quantitative analysis, we first give a set of translation rules to map service choreography elements into general-stochastic-petri-nets (GSPN). Based on the GSPN representation, we introduce the prediction algorithm to calculate the expectedprocess-normal-completion-time. In the case study, we also obtain experimental results using the WSCDL+ execution engine and validate the accuracy of theoretical results by showing 95% confidence intervals derived from experimental results perfectly cover theoretical prediction values.","PeriodicalId":360193,"journal":{"name":"J. Convergence Inf. Technol.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132358468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Parameter Estimation of Particle Flow Model for Soils Using Neural Networks 基于神经网络的土壤颗粒流模型参数估计

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.3

Shouju Li, Li Wu, Fuzheng Qu, Wei Sun

引用次数: 6

Recognizing Moving Objects Based on Gaussian-Hermite Moments and ART Neural Networks 基于高斯-埃米特矩和ART神经网络的运动目标识别

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.7

Youfu Wu, Jing Wu

引用次数: 7

Genetic Algorithms for Feature Weighting in Multi-criteria Recommender Systems 多准则推荐系统中特征加权的遗传算法

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.13

Chein-Shung Hwang

引用次数: 34

Incorporating Relevance and Importance for Dynamic Ranking in Folksonomies 将相关性和重要性纳入大众分类法的动态排名

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.11

Kaipeng Liu, Binxing Fang, Weizhe Zhang

{"title":"Incorporating Relevance and Importance for Dynamic Ranking in Folksonomies","authors":"Kaipeng Liu, Binxing Fang, Weizhe Zhang","doi":"10.4156/JCIT.VOL5.ISSUE8.11","DOIUrl":"https://doi.org/10.4156/JCIT.VOL5.ISSUE8.11","url":null,"abstract":"The rapidly increasing popularity of social tagging systems and growing amount of users and resources make it a difficult task to find expert users and relevant resources in folksonomies. In this paper, we propose a bipartite graph-based dynamic ranking algorithm, RicoRank (Relevance and Importance inCOrporated RANK), for improving search performance in folksonomies. We combine both the query relevance and importance effectively to generate the final ranking score. We derive the query relevance from a smoothed probabilistic generative model that demonstrates user interest and resource content. We characterize the importance with the mutual reinforcement between users and resources. We assign each mutual reinforcing relation with a weight corresponding to the coherence between the associated tags, the user interest and the resource content. Finally, we employ an iterative procedure, which incorporates well with both query relevance and importance, to simultaneously compute the ranking scores of users and resource. We conduct experiments on a dataset collected from a real-world system. Experimental results on both user expertise and resource quality ranking show a convincing performance of the proposed algorithm.","PeriodicalId":360193,"journal":{"name":"J. Convergence Inf. Technol.","volume":"2 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129778682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Authentication Protocol for Wireless Access Security 一种新的无线接入安全认证协议

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.22

C. Wan, A. Hu, Juan Zhang

引用次数: 3

Forecasting Decisions on Dividend Policy of South Korea Companies Listed in the Korea Exchange Market Based on Support Vector Machines 基于支持向量机的韩国上市公司股利政策预测

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.20

J. Bae

{"title":"Forecasting Decisions on Dividend Policy of South Korea Companies Listed in the Korea Exchange Market Based on Support Vector Machines","authors":"J. Bae","doi":"10.4156/JCIT.VOL5.ISSUE8.20","DOIUrl":"https://doi.org/10.4156/JCIT.VOL5.ISSUE8.20","url":null,"abstract":"In this study, performance of classification techniques is compared in order to predict dividend policy decisions. We first analyzed the feasibility of all available companies listed in the Korea Exchange (KRX) market as dividend data sets by using classification techniques. Then we developed a prediction model based on support vector machines (SVM). We compare the classification accuracy performance between our SVM model and artificial intelligence techniques, and suggest a better dividend policy forecasting model to help a chief executive officer (CEO) or a board of directors (BOD) make better decision in a corporate dividend policy. The experiments demonstrate that the SVM model always outperforms other models in the performance of dividend policy forecasting, and hence we can predict future dividend policy more correctly than any other models. This enhancement in predictability of future dividend policy can significantly contribute to the correct valuation of a company, and hence those people from investors to financial managers to any decision makers of a company can make use of the SVM model for the better financing and investing decision making which can lead to higher profits and firm values eventually. Moreover, this is particularly important for people who want to obtain a high level of accuracy in advanced areas such as financial decision makings.","PeriodicalId":360193,"journal":{"name":"J. Convergence Inf. Technol.","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121663708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

A Hierarchical Hybrid Routing Protocol for Wireless Mesh Network 一种无线网状网络的分层混合路由协议

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.15

Kai Yang, Jianfeng Ma

引用次数: 9

Optimization Strategy of Parallel Query Processing Based on Multi-core Architecture 基于多核架构的并行查询处理优化策略

J. Convergence Inf. Technol. Pub Date : 2010-10-31 DOI: 10.4156/JCIT.VOL5.ISSUE8.24

Yongheng Chen, Wanli Zuo, Fengling He, Kerui Chen

{"title":"Optimization Strategy of Parallel Query Processing Based on Multi-core Architecture","authors":"Yongheng Chen, Wanli Zuo, Fengling He, Kerui Chen","doi":"10.4156/JCIT.VOL5.ISSUE8.24","DOIUrl":"https://doi.org/10.4156/JCIT.VOL5.ISSUE8.24","url":null,"abstract":"Chip Multi-Processor (CMP) could support more than two threads to execute simultaneously, and some executing units are owned by each core. Because threads share various resources of CMP, such as L2-Cache, among many threads, CMP system is inherently different from multiprocessors system and, CMP is also different from simultaneously multithreading (SMT). In this paper a novel and complete approach on how to parallelism for relational database multithreaded query execution that strives for maximum resource utilization for both CPU and disk activities. The focus of this approach is on how to use the multithreaded parallel technique to optimize and process queries based on multicore architecture. A set of algorithms for implementing and optimizing the best query plan, such as the algorithms for scheduling and parallel executing the query plan, the algorithms for allocating thread to sub-query and memory to the buffers between operations in pipelining execution, are proposed in this method. Additionally this paper analysis and optimize the implementation of parallel buffers and multithread. In the experiments, this paper evaluates performance of the parallel buffers and tests the coordination of the multithread.","PeriodicalId":360193,"journal":{"name":"J. Convergence Inf. Technol.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134287311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7