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Articles 451 - 480 of 667
Full-Text Articles in Physical Sciences and Mathematics
Sla Automated Negotiation Manager For Computing Services, Halina Kaminski, Mark Perry
Sla Automated Negotiation Manager For Computing Services, Halina Kaminski, Mark Perry
Mark Perry
Success in today’s marketing arena can often depend on companies embracing effective new technologies and integrating them into their business model. In the computing service supply industry, Service Level Agreements (SLAs) are commonly prepared and signed agreements between the service provider and its customers. SLAs should match business needs of both sides of the agreement as closely as possible. This paper focuses on at the steps and activities that the service provider can take to facilitate agreement. It proposes an automated way for creating SLA’s from a set of Service Level Objectives (SLOs). The SLA should achieve business goals, including …
Policies, Rules And Their Engines: What Do They Mean For Slas?, Mark Perry, Michael Bauer
Policies, Rules And Their Engines: What Do They Mean For Slas?, Mark Perry, Michael Bauer
Mark Perry
In our model for autonomic management of service level agreements (SLA), the roles played by policy and rules must be clearly differentiated. Although policy is typically an ideal we wish to achieve through the implementation of rules, the use of the terms policy and rule are often treated similarly and that consequently policy-engine and rule-engine are often used synonymously. It is our position that in the management of SLAs these terms have specific meanings. The definitions and models embodied are illustrated.
Differentiating Web Service Offerings, Halina Kaminski, Khalid Sherdil, Hanan Lutfiyya, Nazim Madhavji, Mark Perry
Differentiating Web Service Offerings, Halina Kaminski, Khalid Sherdil, Hanan Lutfiyya, Nazim Madhavji, Mark Perry
Mark Perry
The advent of Service Oriented Architecture (SOA) paradigm and increasing use of Web Services (WS) implies that the future will see a large number of services transferred between providers and consumers, using many applications or agents working on behalf of humans. Discovering and using the services is the easy part. Negotiating and selecting the best services from amongst the plethora of similar ones, depending on their cost and quality, is the challenging issue. However, existing WS-I standards neither cater to provision of Service Level Agreements (SLAs), nor their exchange between parties. These standards are confined merely to WS description (WSDL). …
Verifiable Electronic Voting System: An Open Source Solution, Halina Kaminski, Mark Perry
Verifiable Electronic Voting System: An Open Source Solution, Halina Kaminski, Mark Perry
Mark Perry
Elections, referenda and polls are vital processes for the operation of a modern democracy. They form the mechanism for transferring power from citizens to their representatives. Although some commentators claim that the pencil-and-paper systems used in countries such as Canada and UK are still the best method of avoiding voterigging, recent election problems, and the need for faster, better, cheaper vote counting, have stimulated great interest in managing the election process through the use of electronic voting systems. While computer scientists, for the most part, have been warning of the possible perils of such action, vendors have forged ahead with …
Who Counts Your Votes?, Halina Kaminski, Lila Kari, Mark Perry
Who Counts Your Votes?, Halina Kaminski, Lila Kari, Mark Perry
Mark Perry
Open and fair elections are paramount to modern democracy. Although some people claim that the penciland- paper systems used in countries such as Canada and UK are still the best method of avoiding vote rigging, recent election problems have sparked great interest in managing the election process through the use of electronic voting systems. It is a goal of this paper to describe a voting system that is secret and secure as well as verifiable and useable over an existing computer network. We have designed and implemented an electronic voting system – Verifiable E-Voting (VEV) – with an underlying protocol …
Open Source Software Licensing Patterns, Halina Kaminski, Mark Perry
Open Source Software Licensing Patterns, Halina Kaminski, Mark Perry
Mark Perry
No abstract provided.
Collapsible Graphs And Reductions Of Line Graphs, Zhi-Hong Chen, Peter C.B. Lam, Wai-Chee Shiu
Collapsible Graphs And Reductions Of Line Graphs, Zhi-Hong Chen, Peter C.B. Lam, Wai-Chee Shiu
Scholarship and Professional Work - LAS
A graph G is collapsible if for every even subset X ⊆ V ( G ) , G has a subgraph such that G − E ( Γ ) is connected and the set of odd-degree vertices of Γ is X . A graph obtained by contracting all the non-trivial collapsible subgraphs of G is called the reduction of G . In this paper, we characterize graphs of diameter two in terms of collapsible subgraphs and investigate the relationship between the line graph of the reduction and the reduction of the line graph. Our results extend former results in [H.-J. …
Isolation And Dependency Resolution Of Presentation, Processing And Persistence, Mehrab Monjur
Isolation And Dependency Resolution Of Presentation, Processing And Persistence, Mehrab Monjur
Master's Theses (2009 -)
For business application development it is important to isolate programming efforts of the concerns: Presentation, Processing and Persistence. Development of each of these concerns has an independent thinking process and requires somewhat different programming languages and development tools. In order to isolate the concerns, we provide passages between the concerns and control the flow of execution by following essentially three rules: 1. Presentation and Processing are coroutines, 2. Processing is finished before Presentation can begin to show output, and 3. Persistence is a subsystem of Processing. We explain how these rules come to existence, and what the implications are in …
New Computational Approaches For Multiple Rna Alignment And Rna Search, Daniel Deblasio
New Computational Approaches For Multiple Rna Alignment And Rna Search, Daniel Deblasio
Electronic Theses and Dissertations
In this thesis we explore the the theory and history behind RNA alignment. Normal sequence alignments as studied by computer scientists can be completed in O(n2) time in the naive case. The process involves taking two input sequences and finding the list of edits that can transform one sequence into the other. This process is applied to biology in many forms, such as the creation of multiple alignments and the search of genomic sequences. When you take into account the RNA sequence structure the problem becomes even harder. Multiple RNA structure alignment is particularly challenging because covarying mutations make sequence …
A Game Theory Approach For An Emergency Management Security Advisory System, Cheng-Kuang Wu
A Game Theory Approach For An Emergency Management Security Advisory System, Cheng-Kuang Wu
Cheng-Kuang Wu
Efficient emergency management must determine how and when to alert and advise the critical and appropriate response units to the danger of terrorist attacks, particularly when available resources are limited. We propose a framework for homeland security advisory system that incorporates two game theory models designed to advise response units and raise the alarm. In the first scheme the interactive behaviors between the elements or participants of the multi-emergency response system and the zone response unit are modeled and analyzed as a non-cooperative game, after which the terrorist threat value is derived from the mixed strategy Nash equilibrium. In the …
A Framework For Efficient Data Distribution In Peer-To-Peer Networks., Darshan Purandare
A Framework For Efficient Data Distribution In Peer-To-Peer Networks., Darshan Purandare
Electronic Theses and Dissertations
Peer to Peer (P2P) models are based on user altruism, wherein a user shares its content with other users in the pool and it also has an interest in the content of the other nodes. Most P2P systems in their current form are not fair in terms of the content served by a peer and the service obtained from swarm. Most systems suffer from free rider's problem where many high uplink capacity peers contribute much more than they should while many others get a free ride for downloading the content. This leaves high capacity nodes with very little or no …
Determining The Effectiveness Of The 3d Alice Programming Environment At The Computer Science I Level, Edward R. Sykes
Determining The Effectiveness Of The 3d Alice Programming Environment At The Computer Science I Level, Edward R. Sykes
Faculty Publications and Scholarship
Student retention in Computer Science is becoming a serious concern among Educators in many colleges and universities. Most institutions currently face a significant drop in enrolment in Computer Science. A number of different tools and strategies have emerged to address this problem (e.g., BlueJ, Karel Robot, etc.). Although these tools help to minimize attrition, they have not made significant improvements to this widespread problem. A newcomer to the scene called Alice has been met with positive results by captivating student interest through its rich 3D visual programming environment. During the fall of 2005, Alice, a newly published textbook, and numerous …
The Challenges Of Embarking On Corporate Technology Initiatives, Gordon C. Tibbitts
The Challenges Of Embarking On Corporate Technology Initiatives, Gordon C. Tibbitts
Gordon C. Tibbitts III
The world of publishing is changing dramatically with the advent of the web and the dramatic shift toward the use of technology. This presentation addresses the challenges of technologic change through the case study of that change at one of the world’s largest privately owned academic publishers.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 8, June 2006, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 8, June 2006, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 7, May 2006, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 7, May 2006, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
A Genetic Algorithm For The Longest Common Subsequence Problem, Brenda Hinkemeyer
A Genetic Algorithm For The Longest Common Subsequence Problem, Brenda Hinkemeyer
Culminating Projects in Computer Science and Information Technology
The Longest Common Subsequence problem (LCS) is a known NP-complete problem that computes the longest subsequence (series of characters occurring in the same order, although not necessarily consecutively) that any number of strings share. An LCS is not necessarily unique for any combination of strings; however, the length will be. The computationally difficult version of this problem occurs when the number of strings and the LCS length are not fixed. The problem has a number of applications: anything from searching content to file difference listings. There is no single solution that fits all situations, and the deterministic solutions available are …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 6, April 2006, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 6, April 2006, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A six page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Design And Measurement Of A Real-Time Peer-To-Peer Game, Michael D. Simonsen
Design And Measurement Of A Real-Time Peer-To-Peer Game, Michael D. Simonsen
Theses and Dissertations
Currently, multiplayer online games use the client-server architecture which is very resource intensive, expensive, and time consuming. Peer-to-peer protocols are a less resource intensive alternative to the client-server model. We implement a peer-to-peer protocol called NEO in a multiplayer game and run experiments in a lab setting and over the Internet. These experiments show us that NEO is able to run a smooth playable game, with low unused updates and low location error. This happens as long as the arrival delay is long enough to allow updates to arrive in the given time limit and the round length is short …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 5, February 2006, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 5, February 2006, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A six page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 4, January 2006, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 4, January 2006, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Grid-Enabling A Vibroacoustic Analysis Application, Brian Bentow, Jon Dodge, Aaron Homer, Christopher D. Moore, Robert M. Keller, Matthew T. Presley, Robert Davis, Jorge Seidel, Craig Lee, Joseph Betser
Grid-Enabling A Vibroacoustic Analysis Application, Brian Bentow, Jon Dodge, Aaron Homer, Christopher D. Moore, Robert M. Keller, Matthew T. Presley, Robert Davis, Jorge Seidel, Craig Lee, Joseph Betser
All HMC Faculty Publications and Research
This paper describes the process of grid-enabling a vibroacoustic analysis application using the Globus Toolkit 3.2.1. This is the first step in a project intended to grid-enable a suite of tools being developed as a service-oriented architecture for spacecraft telemetry analysis. Many of the applications in the suite are compute intensive and would benefit from significantly improved performance. In this paper we show the advantage of using Globus to grid-enable a single tool in a vibroacoustic analysis flow, with the result that using as few as eleven nodes, that tool’s runtime improved by a factor of eight. While communication overhead …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 3, November 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 3, November 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 2, October 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 2, October 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Google Scholar: Experiences Ideas And Plans, Gordon C. Tibbitts
Google Scholar: Experiences Ideas And Plans, Gordon C. Tibbitts
Gordon C. Tibbitts III
This presentation is based on a synthesis of lessons learned in working with Google on the development of Google Scholar. A convergence of needs and developments bolstered support for federated searching, a greater number of publishers providing Google access to crawl their content, and the emergence of Google Scholar as a strong tool overshadowing any effort by publishers to launch a cooperative scholarly search engine. This presentation surveys what Google Scholar is currently use and what users are saying about it. Some found the inaccuracies and ubiquity of lower quality content troublesome. Opportunities to improve coverage, search stability (search results …
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 1, September 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 1, September 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 9, June 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 9, June 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 20, Number 8, June 2004, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 20, Number 8, June 2004, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 8, May 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 8, May 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
An eight page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 7, April 2005, College Of Engineering And Computer Science, Wright State University
Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 21, Number 7, April 2005, College Of Engineering And Computer Science, Wright State University
BITs and PCs Newsletter
A six page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.
Google Scholar: The Next Big Thing?, Gordon C. Tibbitts
Google Scholar: The Next Big Thing?, Gordon C. Tibbitts
Gordon C. Tibbitts III
The question of whether Google Scholar is the next big thing is really not answerable. After enabling Google Scholar to crawl publishers proprietary content publishers have learned Google is an unusual partner when it comes to copyright and partnership. Second, nothing is free. Third, stakeholders (researchers, students, librarians, etc.) have differing views of quality. Fourth, branding and attribution of content in a big search engine space will be difficult, and, more critically, may only be achievable collectively. Finally, it is evident that incomplete search services such as Google Scholar need an integrative strategy in order to retain value.