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Displaying 1-33 out of 33 total
Particle Swarm Optimization for Energy-Aware Virtual Machine Placement Optimization in Virtualized Data Centers
Found in: 2013 International Conference on Parallel and Distributed Systems (ICPADS)
By Shangguang Wang,Zhipiao Liu,Zibin Zheng,Qibo Sun,Fangchun Yang
Issue Date:December 2013
pp. 102-109
A critical research issue is to lower the energy consumption of a virtualized data center by means of virtual machine placement optimization while satisfying the resource requirements of the cloud services. In this paper, we focus on different existing sch...
 
Dynamic Virtual Resource Renting Method for Maximizing the Profits of a Cloud Service Provider in a Dynamic Pricing Model
Found in: 2013 International Conference on Parallel and Distributed Systems (ICPADS)
By Ao Zhou,Shangguang Wang,Qibo Sun,Hua Zou,Fangchun Yang
Issue Date:December 2013
pp. 118-125
With an increasing number of cloud service providers (CSP) delivering services to customers from the cloud, maximizing the profits of CSPs becomes a critical problem. Existing methods are difficult to solve the problem because they do not make full use of ...
 
Reputation Measurement of Cloud Services Based on Unstable Feedback Ratings
Found in: 2013 International Conference on Parallel and Distributed Systems (ICPADS)
By Shangguang Wang,Jie Wei,Lei Sun,Qibo Sun,Fangchun Yang
Issue Date:December 2013
pp. 474-479
With the rapid development of Cloud computing, more and more service providers could provide cloud services (applications) to users. Faced with mass Cloud services, trust and reputation mechanisms offer a promising way to solve the trust evaluation of Clou...
 
Privacy-Assured Similarity Query over Graph-Structured Data in Mobile Cloud
Found in: 2013 IEEE 33rd International Conference on Distributed Computing Systems Workshops (ICDCSW)
By Yingguang Zhang, Sen Su, Weifeng Chen, Yulong Wang, Peng Xu, Fangchun Yang
Issue Date:July 2013
pp. 398-403
In the emerging mobile cloud paradigm, more and more innovative social applications are provided. The data of these applications is usually represented by the graph structure. For effective data retrieval, it is a crucial requirement to enable substructure...
 
Selecting Web Service for Multi-user Based on Multi-QoS Prediction
Found in: 2013 IEEE International Conference on Services Computing (SCC)
By Zhongjun Liang,Hua Zou,Jing Guo,Fangchun Yang,Rongheng Lin
Issue Date:June 2013
pp. 551-558
In this paper, we study a new framework for multi-user Web services selection problem, which aims to select best candidates to meet multi-user's requirements. However, the unavoidable challenges in this problem are the efficiency and effect. Most existing ...
 
The Collaborative Configuration of Service-Oriented Product Lines Based on Evolutionary Approach
Found in: 2013 IEEE International Conference on Services Computing (SCC)
By Hongxia Zhang,Rongheng Lin,Hua Zou,Fangchun Yang,Yao Zhao
Issue Date:June 2013
pp. 751-752
Service-oriented product lines provide a unified representation of variants of the possible applications of a specific domain. The configuration process is often completed by multi-stakeholders collaboratively. However, current configuration methods do not...
 
Web Services QoS Measure Based on Subjective and Objective Weight
Found in: 2013 IEEE International Conference on Services Computing (SCC)
By You Ma,Shangguang Wang,Qibo Sun,Hua Zou,Fangchun Yang
Issue Date:June 2013
pp. 543-550
The previous Quality of Service (QoS) measure method for Web services are not accurate as they often focused on the ambiguity of user preferences but neglected its one-sidedness (i.e., user preferences cannot realize the data distribution characteristics o...
 
A Hybrid Service Selection Approach for Multi-user Requests
Found in: 2012 IEEE 14th Int'l Conf. on High Performance Computing and Communication (HPCC) & 2012 IEEE 9th Int'l Conf. on Embedded Software and Systems (ICESS)
By Hua Jin,Hua Zou,Fangchun Yang,Rongheng Lin,Xinchao Zhao
Issue Date:June 2012
pp. 1142-1149
Present web service selection methods are trying to find solutions that can get an optimal QoS utility value for single user while satisfying user's requests. However, affections from other users' solution are lack of consideration, especially for those us...
 
Using Bipartite Graph for Resolving Multiple Requests Conflicts
Found in: Service Sciences, International Joint Conference on
By Hua Jin,Hua Zou,Fangchun Yang,Rongheng Lin,Tianping Shuai
Issue Date:May 2012
pp. 46-50
Present web service selection method is focusing on single user request and selects service with best QoS attributes. However, conditions that multiple user requests for the same functional service are lack of consideration. In such situation, service with...
 
A Novel Approach for Single-Packet IP Traceback Based on Routing Path
Found in: Parallel, Distributed, and Network-Based Processing, Euromicro Conference on
By Ning Lu,Yulong Wang,Fangchun Yang,Maotong Xu
Issue Date:February 2012
pp. 253-260
Most single-packet IP trace back approaches that have been proposed demand routers to log the packet digests to trace back, which lead to the linear growth of the storage overhead as the forwarded packets are increasing. This paper proposes a novel single-...
 
Delay Aware Multipath Doppler Routing in Aeronautical Ad hoc Networks
Found in: Computational Science and Engineering, IEEE International Conference on
By Wenzhe Gu,Jinglin Li,Maohui Lv,Qibo Sun,Fangchun Yang
Issue Date:August 2011
pp. 251-255
No summary available.
 
Evaluating Feedback Ratings for Measuring Reputation of Web Services
Found in: Services Computing, IEEE International Conference on
By Shangguang Wang,Zibin Zheng,Qibo Sun,Hua Zou,Fangchun Yang
Issue Date:July 2011
pp. 192-199
In the field of service computing, reputation of a Web service is usually calculated using feedback ratings provided by service users. However, the existing of malicious ratings and different preferences of different service users often lead to a bias towa...
 
ISPCA: IDPSO-Based Service Pool Construction Algorithm
Found in: Information Science and Management Engineering, International Conference of
By Wenbin Wang, Qibo Sun, Fangchun Yang, Xinchao Zhao
Issue Date:August 2010
pp. 104-108
QoS-driven web services selection plays an important role in web service composition. Since the selected services would fail down because of the dynamic network situation, this paper presents a service pool model to help users save more composite plans in ...
 
A Web Service Composition Algorithmic Method Based on TOPSIS Supporting Multiple Decision-Makers
Found in: Services, IEEE Congress on
By Hua Zou, Longchang Zhang, Fangchun Yang, Yao Zhao
Issue Date:July 2010
pp. 158-159
This paper presents a novel Web service composition algorithm based on TOPSIS (WSC_TOPSIS) to solve the service composition difficulties with multiple decision-makers and heterogeneous QoS for the first time. It includes three main steps: normalizing decis...
 
An Efficient Search Mechanism in Unstructured P2P Networks Based on Semantic Group
Found in: Computer and Information Technology, International Conference on
By Wenwu Shen, Sen Su, Kai Shuang, Fangchun Yang, Jingshu Xia
Issue Date:July 2010
pp. 2982-2986
Recently among various searching techniques, semantic-based searching has drawn significant attention. In this paper, we propose a novel and efficient search mechanism BF-SKIP (Biased walk, Flooding and Search with K-Iteration Preference). We use Vector Sp...
 
A Novel Intra-frame Encoding Method Based on Spatial Decomposition
Found in: International Conference on E-Business and E-Government
By Jianbin Song,Shubo Zhan,Li Ma,Fangchun Yang,Kai Huang
Issue Date:May 2010
pp. 3536-3539
For years, several intra-frame encoding methods such as AC/DC prediction used in MPEG-4 and multiple modes intra predication used in H.264 were proposed and the above methods made more efficient compress performance. But compared with inter-frame, the perf...
 
The Optimizing Implementation of Fast Loop Filter Based on C6455 DSP
Found in: International Conference on E-Business and E-Government
By Jianbin Song,Shubo Zhan,Li Ma,Fangchun Yang
Issue Date:May 2010
pp. 4894-4897
H.264 is the newest high performance video encoding standard that is attributed to applying several new efficient compress methods such as loop filter. The computational time consumed of H.264 increased by 2 or more times compared with previous standard an...
 
Multi-attribute Group Decision Making-Based Decentralized Web Service Selection
Found in: Service Sciences, International Conference on
By Longchang Zhang, Hua Zou, Fangchun Yang
Issue Date:May 2010
pp. 82-87
In ubiquitous network environment, network and resources change frequently, the capabilities of devices are quite different. All these features lead to local characteristics of QoS (quality of service). In addition, the centralized service registry and ser...
 
A Measure Approach for Trustworthy QoS of Web Service
Found in: Service Sciences, International Conference on
By Qibo Sun, Shangguang Wang, Fangchun Yang
Issue Date:May 2010
pp. 34-38
In order to obtain trustworthy QoS (Quality of Service) in situations which have little or no information regarding a service's QoS, we propose a QoS measure approach, namely Bayesian Approach with Maximum-Entropy Principle (BA-MEP). BA-MEP firstly extract...
 
Cowtra: A COntribution Willingness-Based Two-phase Bandwidth Resource Allocation Algorithm in P2P Network
Found in: Parallel and Distributed Systems, International Conference on
By Cai Chen, Sen Su, Kai Shuang, Fangchun Yang
Issue Date:December 2009
pp. 848-853
Free-riding phenomenon is overwhelming in nowadays p2p network which causes researchers to investigate and develop many approaches to combat it. However, almost all the studies neglect the role of relative contribution of peers, namely willingness of contr...
 
Model-Based Approach to Measuring Quality of Experience
Found in: Emerging Network Intelligence, International Conference on
By Yan Gong, Fangchun Yang, Lin Huang, Sen Su
Issue Date:October 2009
pp. 29-32
Quantifiable quality measures are necessary for VoIP service providers in order to offer services and be sure to keep users for their services. Existing methods used for evaluating the Quality of Experience (QoE) mostly rely on user survey and scores from ...
 
A Generic Approach to Service Conflict Control in IMS
Found in: Networking and Services, International conference on
By Hua Liu, Fangchun Yang
Issue Date:April 2009
pp. 444-449
Service conflict refers to the case that services may interfere with each other when they are used together. This issue adversely affects service quality and user satisfaction. Service conflict in IP multimedia system (IMS) becomes more complex and existen...
 
Vulnerability Analysis of Intelligent Network System
Found in: Networks Security, Wireless Communications and Trusted Computing, International Conference on
By Danfeng Yan, Fangchun Yang
Issue Date:April 2009
pp. 282-285
All attacks come from the successful utilization of the vulnerabilities of the telecommunication network or systems by the attackers. So it is the first important thing to clear the vulnerability of certain network or system. The theoretic methods are avai...
 
Measuring Network Vulnerability Based on Pathology
Found in: Web-Age Information Management, International Conference on
By Yulong Wang, Fangchun Yang, Qibo Sun
Issue Date:July 2008
pp. 640-646
This paper compares disease with network vulnerability by their definitions and characteristics. A mapping between disease and vulnerability is built based on their similarities. We put forward a novel model of vulnerabilities in computer networks by simul...
 
Managing Variability of Mobile Value Added Service in Framework
Found in: Applications and the Internet Workshops, IEEE/IPSJ International Symposium on
By Xingping Huang, Peng Xu, Fangchun Yang
Issue Date:January 2007
pp. 8
Great Variability is the most important character in the development of mobile value added service in 3G era. For effectively meet the exploding need of diversified mobile value added services, service variability control mechanism in framework is focused ...
 
An Artificial Immune-based Feature Interaction Detection Method
Found in: Digital Telecommunications, International Conference on
By Wei WEI, Fangchun YANG
Issue Date:August 2006
pp. 10
Based on analyzing the similarities of the Feature Interaction Detection System and Artificial Immune System, an artificial immune-based feature interaction detection method is proposed to detect all kinds of feature interactions in the next generation net...
 
Service Matching Based on Semantic Descriptions
Found in: Advanced International Conference on Telecommunications / Internet and Web Applications and Services, International Conference on
By Yonglei Yao, Sen Su, Fangchun Yang
Issue Date:February 2006
pp. 126
Matchmaking is an important aspect of Web Services interactions. In a dynamic environment such as the Internet, matchmaking services require rich and flexible metadata as well as efficient matching algorithms. The Semantic Web technologies, especially OWL ...
 
Detecting Race Conditions in Web Services
Found in: Advanced International Conference on Telecommunications / Internet and Web Applications and Services, International Conference on
By Jianyin Zhang, Sen Su, Fangchun Yang
Issue Date:February 2006
pp. 184
Feature interaction has been first formally identified as a problem in the telecommunication domain. With the rapid growth and application of Web Services, feature interaction problem also arises in the dynamic Web Service interactions. Race conditions, on...
 
SOAP Based Double-Channel Communication
Found in: Advanced International Conference on Telecommunications / Internet and Web Applications and Services, International Conference on
By Yonglei Yao, Sen Su, Fangchun Yang
Issue Date:February 2006
pp. 167
The SOAP protocol is the de facto communication standard for Web services, providing extensibility, simplicity, robustness and especially interoperability. However, the performance of SOAP is relatively poor, mainly because SOAP needs extra process parsing...
 
Improve Peer Cooperation Using Social Peer-to-Peer Networks
Found in: Information Science and Engineering, International Conference on
By Yan Gong, Fangchun Yang, Sen Su, Guangwei Zhang
Issue Date:December 2009
pp. 253-257
In unstructured peer-to-peer (P2P) networks, there exist numerous malicious nodes, whose false behaviors decrease the efficiency and reliability of the search. This paper is devoted to decrease the negative effects of those nodes in resource searching proc...
 
Reputation Measurement and Malicious Feedback Rating Prevention in Web Service Recommendation Systems
Found in: IEEE Transactions on Services Computing
By Shangguang Wang,Zibin Zheng,Zhengping Wu,Michael Lyu,fangchun yang
Issue Date:May 2014
pp. 1
Web service recommendation systems can help service users to locate the right service from the large number of available Web services. Avoiding recommending dishonest or unsatisfactory services is a fundamental research problem in the design of Web service...
   
Predicting unknown QoS value with QoS-Prophet
Found in: Proceedings Demo & Poster Track of ACM/IFIP/USENIX International Middleware Conference (MiddlewareDPT '13)
By Fangchun Yang, Hua Zou, Qibo Sun, Shangguang Wang, You Ma
Issue Date:December 2013
pp. 1-2
We have witnessed the widespread adoption of Collaborative Filtering (CF) in prediction of unknown QoS value. Existing approaches have neglected that CF idea was originated from the processing of subjective data, movies scores for example. However, QoS val...
     
FTCloudSim: a simulation tool for cloud service reliability enhancement mechanisms
Found in: Proceedings Demo & Poster Track of ACM/IFIP/USENIX International Middleware Conference (MiddlewareDPT '13)
By Hua Zou, Qibo Sun, Shangguang Wang, Ao Zhou, Fangchun Yang
Issue Date:December 2013
pp. 1-2
Recently, an increasing number of companies have deployed their application services in the cloud. However, the cloud data center downtime has negative affected the quality of cloud service quality. Many researchers have studied the problem of cloud servic...
     
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