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The Research of Data Mining Based on Application Data Pool
Minjie Bian,Jue Gao,JiePin Xu,Honghao Gao 보안공학연구지원센터 2014 International Journal of u- and e- Service, Scienc Vol.7 No.5
Today, people use various kinds of information technology applications to deal with applications in our daily life, which generates lots of information. However,most of the informationis just stored in many Distributed Heterogeneous Databases (DHDs) as log records, instead of being used abundantly and effectively. In this paper, we mainly discusses about how to use these data in useful ways by Data Mining (DM). Relative to thetraditional Data Mining based on Data Warehouse (WD),we propose a definition named Application Data Pool (ADP)replacing WD in this paper. And we design a KnowledgeDiscovery in Databases (KDD) model with ADP to use these data more efficiently. At last we use an application in Shanghai University ID Card designed with the ADP to prove the effectiveness and feasibility in KDD.
Honghao Gao,Yucong Duan,Yonghua Zhu 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.6
With the increasing of Web services on Internet, services composition requests considering not only the static information compatibility, such as interface grammar and semantic, but also the structural behavior compatibility, i.e., control flow and communication protocol. However, due to the uncertainty of Internet, application failures occurred in service-based software will cause kinds of economic losses. This stochastic phenomenon has been impacted on the structural behavior which makes services composition should take the probabilistic compatibility into account. The probabilistic compatibility needs to compute the degree of compatibility for the effective performance evaluation, which has been an important issue during services collaboration. In this paper, the probabilistic interface automaton is proposed to formalize service behaviors. Then, the synchronized product model is used to the qualitative checking for verifying whether they can interact with each other or not. Third, the probabilistic compatibilities of composite service and component service are discussed for the quantitative computing. Our method provides a reference to generate the correctness and reliable services composition.
Research on Probabilistic Optimization to Dynamic Composition for Service Replacement
Honghao Gao,Minjie Bian,Yucong Duan,Yonghua Zhu 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.10
A growing number of enterprises have been moving their works to encapsulate system functions, business logics and processing modules into Web service because of its flexibility and low-cost. However, service-oriented software calls for constantly adjusting its architecture in order to respond to varying user requirements and instable runtime environments. One of the most challenging issues is how to effectively implement a reconfiguration to ensure the business-critical application is trustworthy. In this paper, it proposes a method to dynamic composition for service replacement, which focuses on the probabilistic optimization to service planning of candidate compositions when the service failure is occurred. First, the input and output data specification is defined to describe interface behaviors, and then the probabilistic solution graph is introduced to formalize replacement strategies. Second, corresponding algorithms are discussed for optimization selection purpose, which includes reliability calculation process and model modification process. The former computes the probability value of each service planning generated from probabilistic solution graph. The latter modifies probabilistic solution graph model to recommend Top-k solutions, pruning the service planning which does not satisfy the specified probability value. Third, the architecture of prototype is presented to demonstrate the feasibility of the proposed method. Our method provides a reference to guarantee the reliability of service process in E-commerce.
Research on Service Process Verification of Probabilistic Spanning Tree for Dynamic Composition
Honghao Gao,Ying Li 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.10
Web services have been widely employed in E-commerce system. It is a flexible way to use third-party applications for complex business logics implementation, which supports data transparent transmission via public interfaces. However, the single service with a fixed function has limitations to the diversity and complexity of user requirements, especially the interoperability of applications interactions. To address the challenge, the capability of dynamic services composition aims to select services and assign them to business process. However, there are kinds of possible composition plans to satisfy requested functions. It is a great importance to evaluate these plans to guarantee the solution of services composition is correctness and acceptable. In this paper, it proposes a service process verification approach to probabilistic spanning tree for dynamic composition. First, the probabilistic spanning tree is introduced to describe services composition plans according to the interface operations decomposition of given service requirements. Second, the service process model is generated from probabilistic spanning tree based on different pruning strategies, where the formal verification is performed to check each solution against quantitative properties related to the functional and non-functional requirements. Our method is feasibility to dynamic services composition since the quantitative verification guarantees the performance of composition solution.
Position-based Data Dissemination to Interested Region in VANETs
Shuoping Wang,Meng Kuai,Honghao Gao 보안공학연구지원센터 2014 International Journal of Grid and Distributed Comp Vol.7 No.5
Vehicular Ad-hoc Networks (VANETs) are expected to provide assistance to various applications, such as accident broadcast or emergency notification. Some kinds of applications need data to be delivered in a certain region by geocast, which means disseminating information in a specific area, instead of using a certain IP address. In this paper, we propose a data dissemination protocol for VANETs, which delivers data to all the vehicles in an interested region. We assume each vehicle is equipped with GPS and DSRC devices. Our simulation results show that this data dissemination protocol can contribute to high delivery ratio. Also, it performs well in adaptability during heavy traffic.
Live Media Streaming in VANETs using Traffic Flow
Shuoping Wang,Zhipeng Wang,Jun Liu,Honghao Gao,Meng Kuai 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.1
Multimedia streaming is a trend in VANETs infotainment service with establishment of infrastructure and communication standards. This paper considers the scenario of live multimedia streaming multicast to vehicles. We propose the relay selection scheme to deliver media streaming with stable link to improve QoS (quality of service). Through evaluation, our proposed scheme is able to have video delivered with a satisfying delay and acceptable loss ratio.
Value-driven Service Matching and Bundling via a Service Value Broker
Yucong Duan,Nanjangud C Narendra,Honghao Gao,Xiaobing Sun 보안공학연구지원센터 2014 International Journal of u- and e- Service, Scienc Vol.7 No.6
Most research on service matching and composition (or bundling) has been technical in nature, viz., at the IT service level. Very little has been done on value-based service matching and bundling. By “value-based”, we mean the value added by a service over and above the basic functional requirement that the service is supposed to satisfy. Examples of value added could be lowered cost, higher performance, improved security, etc. To that end, in this paper, we present our idea of a Service Value Broker (SVB),that performs value-driven service matching and bundling. Via an approach specifying business and technical interfaces for business services and IT services respectively, we show how value can be calculated and integrated at the business layer. Further, we also show how our approach makes it possible to determine the appropriate IT services to be selected so as to provide the required value add at the business layer. We demonstrate our ideas via a realistic case study in the E-Commerce domain.