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作者： Wallis, Mark Henskens, Frans Hannaford, Michael Distributed Computing Research Group School of Electrical Engineering and Computer Science University of Newcastle Callaghan NSW Australia

ISBN: (纸本)9789898425515

The World Wide Web is a constantly changing environment in which academia, industry and interest groups participate to innovate and design the next evolution of online user interaction. The ad-hoc nature in which new web-based systems and technologies have been developed has led to an increasingly diverse environment, with ill defined interactions and fuzzy classification systems. Recently, business pioneers in the industry have attempted to classify web applications into large groupings based on certain key characteristics. The high-level taxonomy presented in this paper provides a way to scientifically classify web applications. By classifying applications and studying the progression from one classification to the next, predictions can be made as to the direction of future web application development. After presenting a formal classification model this research discusses how this model can be used to compare existing web technologies and design the next generation of the World Wide Web.

关键词： World Wide Web

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Overcast skies: What cloud computing should be?

Overcast skies: What cloud computing should be?

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作者： Wallis, Mark Henskens, Frans Hannaford, Michael Distributed Computing Research Group School of Electrical Engineering and Computer Science University of Newcastle Callaghan NSW Australia

ISBN: (纸本)9789898425522

From an consumer perspective the Cloud is opaque. Online storage and the rise of web applications are changing the way users work. There continues though to be no distinction from a user experience point of view between accessing a Cloud-based application and accessing a web application deployed on a classic server. We propose a new paradigm for online application development which takes the best from web applications, thick client applications and the new "application store" market. This approach expands the cloud to encompass all resources that belong to a user;be it local client resources or server-farm resources procured using a traditional cloud model. By implementing these concepts we can bring the benefits of cloud computing directly to the end user while breaking developers out of the confines of the web browser.

关键词： Cloud computing

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Base62x: An alternative approach to Base64 for non-alphanumeric characters

Base62x: An alternative approach to Base64 for non-alphanume...

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2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011, Jointly with the 2011 7th International Conference on Natural Computation, ICNC'11

作者： Liu, Zhenxing Liu, Lu Hill, Richard Zhan, Yongzhao Distributed and Intelligent Systems Research Group School of Computing and Mathematics University of Derby United Kingdom School of Computer Science and Telecommunication Engineering Jiangsu University Jiangsu China

ISBN: (纸本)9781612841816

In computer systems, printable characters include not only 62 alphanumeric characters (0-9, a-z and A-Z) but also non-alphanumeric characters (e.g. *, \, , %). Base64 is a commonly used encoding scheme that represents binary data in an ASCII string format. However, for Base64, non-alphanumeric characters (e.g. *, \, , %) are problematic for filenames and URLs. For example, + is error-prone in URL and/ is not allowed in filenames. To address this issue, we propose a new method, Base62x, as an alternative approach to Base64. The proposed method is more effective in application development and fully compatible with symbol-sensitive applications, such as, file systems, IP addresses and safe transmission of non-ASCII over the Internet. © 2011 IEEE.

关键词： 62 alphanumeric character ASCII string format Base16 Base62x Base62x Base64 Base64 Colon computers Decoding Educational institutions Encoding Encyclopedias IP address Internet Internet Internet Numeric notation URL binary data character sets computer system digital arithmetic encoding encoding scheme file name file system nonASCII nonalphanumeric character printable character symbol-sensitive application

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ANCAEE: A Novel Clustering Algorithm for Energy Efficiency in Wireless Sensor Networks

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Wireless Sensor Network 2011年第9期3卷 307-312页

作者： A. P. Abidoye N. A. Azeez A. O. Adesina K. K. Agbele Wireless Sensor Networks & Natural Language Research Group Grid Computing & Distributed Systems Laboratory Department of Computer Science University of the Western Cape

One of the major constraints of wireless sensor networks is limited energy available to sensor nodes because of the small size of the batteries they use as source of power. Clustering is one of the routing techniques that have been using to minimize sensor nodes’ energy consumption during operation. In this paper, A Novel Clustering Algorithm for Energy Efficiency in Wireless Sensor Networks (ANCAEE) has been proposed. The algorithm achieves good performance in terms of minimizing energy consumption during data transmission and energy consumptions are distributed uniformly among all nodes. ANCAEE uses a new method of clusters formation and election of cluster heads. The algorithm ensures that a node transmits its data to the cluster head with a single hop transmission and cluster heads forward their data to the base station with multi-hop transmissions. Simulation results show that our approach consumes less energy and effectively extends network utilization.

关键词： Sensor Nodes Clusters Cluster heads Wireless Sensor Networks Base Station Clustering Algorithms Energy Efficiency

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Base62x: An Alternative Approach to Base64 for non-Alphanumeric Characters

Base62x: An Alternative Approach to Base64 for non-Alphanume...

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2011 Eighth International Conference on Fuzzy System and Knowledge Discovery(第八届模糊系统与知识发现国际会议 FSKD 2011)

作者： Zhenxing Liu Richard Hill Lu Liu Yongzhao Zhan Distributed and Intelligent Systems Research Group School of Computing and Mathematics University Distributed and Intelligent Systems Research Group School of Computing and Mathematics University School of Computer Science and Telecommunication Engineering Jiangsu University Jiangsu China

In computer systems, printable characters include not only 62 alphanumeric characters (0-9, a-z and A-Z) but also non-alphanumeric characters (e.g. *, \, ∧, ％). Base64 is a commonly used encoding scheme that represents binary data in an ASCII string format However, for Base64, non-alphanumeric characters (e.g. *, \, ∧, ％) are problematic for filenames and URLs. For example, “+” is error-prone in URL and “/” is not allowed in filenames. To address this issue, we propose a new method, Base62x, as an alternative approach to Base64. The proposed method is more effective in application development and fully compatible with symbol-sensitive applications, such as, file systems, IP addresses and safe transmission of non-ASCII over the Internet.

关键词： Base62x Base64 Numeric notation Basel6

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Your best might not be good enough: Ranking in collaborative social search engines

Your best might not be good enough: Ranking in collaborative...

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International Conference on Collaborative computing: Networking, Applications and Worksharing (CollaborateCom)

作者： Prantik Bhattacharyya Jeff Rowe Shyhtsun Felix Wu Karen Haigh Niklas Lavesson Henric Johnson Department of Computer Science University of California Davis Department of Computer Science University of California Davis USA School of Computing Blekinge Institute of Technology Sweden Intelligent Distributed Computing Group BBN Technologies

A relevant feature of online social networks like Facebook is the scope for users to share external information from the web with their friends by sharing an URL. The phenomenon of sharing has bridged the web graph with the social network graph and the shared knowledge in ego networks has become a source for relevant information for an individual user, leading to the emergence of social search as a powerful tool for information retrieval. Consideration of the social context has become an essential factor in the process of ranking results in response to queries in social search engines. In this work, we present InfoSearch, a social search engine built over the Facebook platform, which lets users search for information based on what their friends have shared. We identify and implement three distinct ranking factors based on the number of mutual friends, social group membership, and time stamp of shared documents to rank results for user searches. We perform user studies based on the Facebook feeds of two authors to understand the impact of each ranking factor on the result for two queries.

关键词： Privacy Facebook Irrigation Security

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Job Scheduling with License Reservation: A Semantic Approach

Job Scheduling with License Reservation: A Semantic Approach

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Euromicro Conference on Parallel, distributed and Network-Based Processing

作者： Jorge Ejarque Andras Micsik Raul Sirvent Peter Pallinger Laszlo Kovacs Rosa M. Badia Computer Architecture Department Universitat Politecnica de Catalunya Barcelona Spain Grid Computing and Clusters Group Barcelona Supercomputing Center Barcelona Spain Distributed Systems Department-Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary Artificial Intelligence Research Institute Spanish National Research Council Barcelona Spain

The license management is one of the main concerns when Independent Software Vendors (ISV) try to distribute their software in computing platforms such as Clouds. They want to be sure that customers use their software according to their license terms. The work presented in this paper tries to solve part of this problem extending a semantic resource allocation approach for supporting the scheduling of job taking into account software licenses. This approach defines the licenses as another type of computational resource which is available in the system and must be allocated to the different jobs requested by the users. License terms are modeled as resource properties, which describe the license constraints. A resource ontology has been extended in order to model the relations between customers, providers, jobs, resources and licenses in detail and make them machine processable. The license scheduling has been introduced in a semantic resource allocation process by providing a set of rules, which evaluate the semantic license terms during the job scheduling.

关键词： Licenses Software Semantics Resource management Ontologies Processor scheduling Law

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distributed computing and modeling & simulation: Speeding up simulations and creating large models 11

Distributed computing and modeling & simulation: Speeding up...

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Simulation Winter Conference

作者： Simon J. E. Taylor Mohammadmersad Ghorbani Navonil Mustafee Stephen J. Turner Tamas Kiss Daniel Farkas Shane Kite Steffen Straßburger ICT Innovation Group School of Information Systems Computing and Mathematics Brunei University Uxbridge UK Centre for Parallel Computing University of Westminster London UK School of Business and Economics Swansea University Swansea UK Upper Courtyard Saker Solutions Alcester UK Parallel & Distributed Computing Centre School of Computer Engineering Nanyang Technological University Singapore Singapore School of Economic Sciences Ilmenau University of Technology Ilmenau Germany

distributed computing has many opportunities for Modeling and Simulation (M&S). Grid computing approaches have been developed that can use multiple computers to reduce the processing time of an application. In terms of M&S this means simulations can be run very quickly by distributing individual runs over locally or remotely available computing resources. distributed simulation techniques allow us to link together models over a network enabling the creation of large models and/or models that could not be developed due to data sharing or model reuse problems. Using real-world examples, this advanced tutorial discusses how both approaches can be used to benefit M&S researchers and practitioners alike.

关键词： Computational modeling Biological system modeling Data models Educational institutions computers Grid computing Software

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A Hash-based Secure Interface on Plain Connection

A Hash-based Secure Interface on Plain Connection

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International ICST Conference on Communications and Networking in China

作者： Zhenxing Liu Harjinder S. Lallie Lu Liu Yongzhao Zhan Kaigui Wu Distributed and Intelligent Systems Research Group School of Computing and Mathematics University of Derby School of Computer Science and Telecommunication Engineering Jiangsu University College of Computer Science Chongqing University

ISBN: (纸本)9781457701009

This paper proposes a hash-based secure interface between two nodes on the Internet, especial between two interfaces or two web pages. Digital signatures and public-private keys are traditionally used to provide integrity and authentication. This paper proposes an alternative method which uses a shared private key and a public hash function for a message that is sent over a plain connection without losing integrity and authentication. An additional private algorithm is needed when the message has been hashed based on the message and the salt (the shared private key), and the hashed value will be re-computed with the private algorithm to produce a string named as checksum. At the other end, when a message is received with a checksum the same process is followed to produce a new checksum. If the produced checksum is equal to the received checksum, the message is legitimate. For efficiency and reliability, a timestamp and validity period is introduced to the scheme. The salt gets more salty with time included and so does the secure interface.

关键词： Hash Functions Network Security Web Applications

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A taxonomy of autonomic application management in grids

A taxonomy of autonomic application management in grids

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16th IEEE International Conference on Parallel and distributed Systems, ICPADS 2010

作者： Rahman, Mustafizur Ranjan, Rajiv Buyya, Rajkumar Cloud Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia Service Oriented Computing Research Group School of Computer Science and Engineering University of New South Wales Australia

ISBN: (纸本)9780769543079

In this paper, we propose a taxonomy that characterizes and classifies different components of autonomic application management in Grids. We also survey several representative Grid systems developed by various projects world-wide to demonstrate the comprehensiveness of the taxonomy. The taxonomy not only highlights the similarities and differences of state-of-the-art technologies utilized in autonomic application management from the perspective of Grid computing, but also identifies the areas that require further research initiatives. © 2010 IEEE.

关键词： Surveys

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