University of Medicine and Pharmacy

Displaying 1-31 of 31 results

  • White Papers // Dec 2013

    Big Data Computing and Clouds: Challenges, Solutions, and Future Directions

    In this paper, the authors discuss approaches and environments for carrying out analytics on clouds for big data applications. It revolves around four important areas of analytics and big data, namely data management and supporting architectures; model development and scoring; visualisation and user interaction; and business models. Through a detailed...

    Provided By University of Medicine and Pharmacy

  • White Papers // Nov 2013

    A Framework of Constructions of Minimum Storage Regenerating Codes with the Optimal Update/Access Property for Distributed Storage Systems Based on Invariant Subspace Technique

    In this paper, the authors present a generic framework for constructing systematic minimum storage regenerating codes with two parity nodes based on invariant subspace technique. Codes constructed in their framework not only contain some best known codes as special cases, but also include some new codes with good properties such...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2013

    SLA-Based Resource Provisioning for Software-as-a-Service Applications in Cloud Computing Environments

    Cloud computing is a solution for addressing challenges such as licensing, distribution, configuration, and operation of enterprise applications associated with the traditional IT infrastructure, software sales and deployment models. Migrating from a traditional model to the Cloud model reduces the maintenance complexity and cost for enterprise customers, and provides on-going...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2013

    Automated SLA Negotiation Framework for Cloud Computing

    A Service Level Agreement (SLA) is a legal contract between parties to ensure the Quality of Service (QoS) is provided to the customers. A SLA negotiation between participants assists in defining the QoS requirements of critical service-based processes. However, the negotiation process for customers is a significant task particularly when...

    Provided By University of Medicine and Pharmacy

  • White Papers // Apr 2013

    Research Cloud Data Communities

    Big data, big science, the data deluge, these are topics the authors are hearing about more and more in their research pursuits. Then, through media hype, comes cloud computing, the saviour that is going to resolve their big data issues. However, it is difficult to pinpoint exactly what researchers can...

    Provided By University of Medicine and Pharmacy

  • White Papers // Feb 2013

    An Iterative Optimization Framework for Adaptive Workflow Management in Computational Clouds

    As more and more data can be generated at a faster-than-ever rate nowadays, it becomes a challenge to processing large volumes of data for complex data analysis. In order to address performance and cost issues of big data processing on clouds, the authors present a novel design of adaptive workflow...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jan 2013

    CloudSim: A Toolkit for the Modeling and Simulation of Cloud Resource Management and Application Provisioning Techniques

    Cloud computing aims to power the next generation data centers and allows dynamic leasing of their server capabilities to third-party applications and end users. It enables providers in efficiently leasing out their data center capabilities for deploying application services driven by workload and QoS (Quality of Service) requirements. The application...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jan 2013

    Resource Provisioning based on Preempting Virtual Machines in Resource Sharing Environments

    Resource provisioning is one of the main challenges in large-scale resource sharing environments such as federated Grids. Recently, many resource management systems in these environments have started to use the lease abstraction and Virtual Machines (VMs) for resource provisioning. In resource sharing environments resource providers serve requests from external users...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2012

    Scaling MapReduce Applications Across Hybrid Clouds to Meet Soft Deadlines

    Cloud platforms make available a virtually infinite amount of computing resources, which are managed by third parties and are accessed by users on demand in a pay-peruse manner, with quality of service guarantees. This enables computing infrastructures to be scaled up and down accordingly to the amount of data to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2012

    A Secure Control Framework for Resource-Limited Adversaries

    Cyber-secure networked control is modeled, analyzed, and experimentally illustrated in this paper. An attack space defined by the adversary's system knowledge, disclosure, and disruption resources is introduced. Adversaries constrained by these resources are modeled for networked control system architecture. It is shown that attack scenarios corresponding to denial-of-service, replay, zero-dynamics,...

    Provided By University of Medicine and Pharmacy

  • White Papers // Oct 2012

    RankTopic: Ranking Based Topic Modeling

    Topic modeling has become a widely used tool for document management due to its superior performance. However, there are few topic models distinguishing the importance of documents on different topics. In this paper, the authors investigate how to utilize the importance of documents to improve topic modeling and propose to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2012

    Design and Development of an Adaptive Workflow-Enabled Spatial-Temporal Analytics Framework

    Cloud computing is a suitable platform for execution of complex computational tasks and scientific simulations that are described in the form of workflows. Such applications are managed by Workflow Management System (WfMS). Because existing WfMSs are not able to autonomically provision resources to real-time applications and schedule them while supporting...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2012

    Deploying OpenStack on CentOS Using the KVM Hypervisor and GlusterFS Distributed File System

    Cloud computing has proven to be a successful distributed computing model as demostrated by its wide spread industrial adoption. Apart from public Clouds, such as Amazon EC2, private and hybrid Cloud deployments are important for organizations of all scales. The availability of free open source Cloud platforms is essential to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2012

    Cost-Effective Provisioning and Scheduling of Deadline-Constrained Applications in Hybrid Clouds

    In order to meet distributed application deadlines, Resource Management Systems (RMSs) have to utilize additional resources from public Cloud providers when in-house resources cannot cope with the demand of the applications. As a means to enable this feature, called Cloud Bursting, the RMS has to be able to determine when,...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jul 2012

    Double Auction-Inspired Meta-Scheduling of Parallel Applications on Global Grids

    Meta-schedulers map jobs to computational resources that are part of a grid, such as clusters, that in turn have their own local job schedulers. Existing Grid meta-schedulers either target system-centric metrics, such as utilization and throughput, or prioritize applications based on utility metrics provided by the users. The system-centric approach...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2012

    Financial Application as a Software Service on Cloud

    In this paper, the authors propose a SaaS model that provides service to ordinary investors, unfamiliar with finance models, to evaluate the price of an option that is currently being traded before taking a decision to enter into a contract. In this model, investors may approach a financial Cloud Service...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2012

    Base Station Cooperation with Noisy Analog Channel Feedback: A Large System Analysis

    Channel State Information (CSI) at the Base Stations (BSs) can significantly increase the spectral efficiency in single and multi-cell broadcast channels. Assuming the users learn their direct and interfering channels, they can feed back this information to the BSs over the uplink. The BSs then form channel estimates which they...

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2012

    Decentralized Orchestration of Data-centric Workflows Using the Object Modeling System

    Data-centric and service-oriented workflows are commonly used in scientific research to enable the composition and execution of complex analysis on distributed resources. Although there are a plethora of orchestration frameworks to implement workflows, most of them are not suitable to execute data-centric workflows. The main issue is transferring output of...

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2012

    A Coordinator for Scaling Elastic Applications Across Multiple Clouds

    Cloud computing allows customers to dynamically scale their applications, software platforms, and hardware infrastructures according to negotiated Service Level Agreements (SLAs). However, resources available in a single Cloud data center are limited, thus if a large demand for an elastic application is observed in a given time, a Cloud provider...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2011

    Energy and Carbon-Efficient Placement of Virtual Machines in Distributed Cloud Data Centers

    Due to the increasing use of Cloud computing services and the amount of energy used by data centers, there is a growing interest in reducing energy consumption and carbon footprint of data centers. Cloud data centers use virtualization technology to host multiple Virtual Machines (VMs) on a single physical server....

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2011

    Creating Value From Business Analytics Systems: The Impact of Strategy

    Business analytics systems can potentially contribute to firm performance and create competitive advantage. However, these benefits do not always follow from investment in business analytics technology. This paper argues that dynamic capabilities, enabled by business analytics technology, lead to value-creating actions and ultimately to improved firm performance. The authors develop...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2011

    Virtual Machines Networking for Distributed Systems Emulation

    Distributed systems are the dominant platform for any application, both in academic and industry. However, testing of applications in such a platform is hard, due to the complexity of the elements that compose these systems. Emulation is an alternative way to improve software quality for distributed applications, allowing analysis of...

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2011

    Optimizing Makespan and Reliability for Workflow Applications With Reputation and Look-Ahead Genetic Algorithm

    For applications in large-scale distributed systems, it is becoming increasingly important to provide reliable scheduling by evaluating the reliability of resources. However, most existing reputation models used for reliability evaluation ignore the critical influence of task runtime. In addition, most previous work uses list heuristics to optimize the makespan and...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2010

    On Robust Stability of the Belief Propagation Algorithm for LDPC Decoding

    The exact nonlinear loop gain of the Belief Propagation Algorithm (BPA) in its Log-Likelihood Ratio (LLR) formulation is computed. The nonlinear gains for regular Low-Density Parity-Check (LDPC) error correcting codes can be computed exactly using a simple formula. It is shown that in some neighborhood of the origin this gain...

    Provided By University of Medicine and Pharmacy

  • White Papers // Oct 2009

    On the Role of Flows and Sessions in Internet Traffic Modeling: An Explorative Toy-Model

    In this paper, the authors present a simple toy-model that is able to explain certain empirical observations reported in a set of previous papers by Hohn et al. about the wavelet spectrum of real traffic traces. Therein, they found that the wavelet spectrum is substantially invariant to flow scrambling and...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2009

    Meeting Application Constraints Efficiently by Deploying Cloud Resources On-Demand

    Cloud computing and Infrastructure-as-a-Service providers, such as Amazon Elastic Computing Cloud (EC2), have paved the way towards computing as a utility. The integration of the cloud providers with in-house infrastructure can be used to support on-demand resource provisioning, providing elasticity in modern applications, and making dynamic adaptation of the service...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Certificate-Based Single Sign-On Mechanism for Multi-Platform Distributed Systems

    In this paper the authors propose a single sign-on mechanism based on certificates generated on request for client applications. Single sign-on mechanisms ensure the use of user credentials for accessing multiple resources where the user is requested to enter its credentials only once. This ensures a reduction of the number...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Minimizing Cost When Using Globally Distributed Cloud Services: A Case Study in Analysis of Intrusion Detection Workflow Application

    Cloud computing is an emerging technology that allows users to use computation, storage and data access services from around the world. However, Cloud service providers charge users for using these services. Specifically, to access data from their globally distributed storage edge servers, they charge users depending on the user's location...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Extending WS-Security to Implement Security Protocols for Web Services

    Web services use tokens provided by the WS-Security standard to implement security protocols. The authors propose several extensions to the WS-Security standard, including name types, key and random number extensions. The extensions are used to implement existing protocols such as ISO9798, Kerberos or BAN-Lowe. The advantages of using these implementations...

    Provided By University of Medicine and Pharmacy

  • White Papers // Nov 2007

    Pathways to Employment for Migrants and Refugees? the Case of Social Enterprise

    This paper examines the use of social enterprise - that is, not for personal profit businesses that have strong social purpose-to support training and employment pathways for migrants and refugees facing multiple forms of exclusion. Drawing on an evaluation of a program that supports seven social enterprises in the Australian...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jul 2006

    A Good Fit? Implementing Enterprise Resource Planning Systems in Loosely Coupled Organisational Systems

    Enterprise Resource Planning systems that provide a packaged solution to data management problems across an enterprise are widely implemented in modern organizations. Ongoing efforts to deliver productive outcomes from implementing ERPs have ensured that this is an area of great interest to IS researchers and practitioners. This paper investigates the...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Certificate-Based Single Sign-On Mechanism for Multi-Platform Distributed Systems

    In this paper the authors propose a single sign-on mechanism based on certificates generated on request for client applications. Single sign-on mechanisms ensure the use of user credentials for accessing multiple resources where the user is requested to enter its credentials only once. This ensures a reduction of the number...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2012

    Base Station Cooperation with Noisy Analog Channel Feedback: A Large System Analysis

    Channel State Information (CSI) at the Base Stations (BSs) can significantly increase the spectral efficiency in single and multi-cell broadcast channels. Assuming the users learn their direct and interfering channels, they can feed back this information to the BSs over the uplink. The BSs then form channel estimates which they...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Minimizing Cost When Using Globally Distributed Cloud Services: A Case Study in Analysis of Intrusion Detection Workflow Application

    Cloud computing is an emerging technology that allows users to use computation, storage and data access services from around the world. However, Cloud service providers charge users for using these services. Specifically, to access data from their globally distributed storage edge servers, they charge users depending on the user's location...

    Provided By University of Medicine and Pharmacy

  • White Papers // Apr 2013

    Research Cloud Data Communities

    Big data, big science, the data deluge, these are topics the authors are hearing about more and more in their research pursuits. Then, through media hype, comes cloud computing, the saviour that is going to resolve their big data issues. However, it is difficult to pinpoint exactly what researchers can...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2011

    Energy and Carbon-Efficient Placement of Virtual Machines in Distributed Cloud Data Centers

    Due to the increasing use of Cloud computing services and the amount of energy used by data centers, there is a growing interest in reducing energy consumption and carbon footprint of data centers. Cloud data centers use virtualization technology to host multiple Virtual Machines (VMs) on a single physical server....

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2012

    Decentralized Orchestration of Data-centric Workflows Using the Object Modeling System

    Data-centric and service-oriented workflows are commonly used in scientific research to enable the composition and execution of complex analysis on distributed resources. Although there are a plethora of orchestration frameworks to implement workflows, most of them are not suitable to execute data-centric workflows. The main issue is transferring output of...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2013

    SLA-Based Resource Provisioning for Software-as-a-Service Applications in Cloud Computing Environments

    Cloud computing is a solution for addressing challenges such as licensing, distribution, configuration, and operation of enterprise applications associated with the traditional IT infrastructure, software sales and deployment models. Migrating from a traditional model to the Cloud model reduces the maintenance complexity and cost for enterprise customers, and provides on-going...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2012

    Deploying OpenStack on CentOS Using the KVM Hypervisor and GlusterFS Distributed File System

    Cloud computing has proven to be a successful distributed computing model as demostrated by its wide spread industrial adoption. Apart from public Clouds, such as Amazon EC2, private and hybrid Cloud deployments are important for organizations of all scales. The availability of free open source Cloud platforms is essential to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Nov 2013

    A Framework of Constructions of Minimum Storage Regenerating Codes with the Optimal Update/Access Property for Distributed Storage Systems Based on Invariant Subspace Technique

    In this paper, the authors present a generic framework for constructing systematic minimum storage regenerating codes with two parity nodes based on invariant subspace technique. Codes constructed in their framework not only contain some best known codes as special cases, but also include some new codes with good properties such...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2013

    Big Data Computing and Clouds: Challenges, Solutions, and Future Directions

    In this paper, the authors discuss approaches and environments for carrying out analytics on clouds for big data applications. It revolves around four important areas of analytics and big data, namely data management and supporting architectures; model development and scoring; visualisation and user interaction; and business models. Through a detailed...

    Provided By University of Medicine and Pharmacy

  • White Papers // Oct 2012

    RankTopic: Ranking Based Topic Modeling

    Topic modeling has become a widely used tool for document management due to its superior performance. However, there are few topic models distinguishing the importance of documents on different topics. In this paper, the authors investigate how to utilize the importance of documents to improve topic modeling and propose to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2009

    Extending WS-Security to Implement Security Protocols for Web Services

    Web services use tokens provided by the WS-Security standard to implement security protocols. The authors propose several extensions to the WS-Security standard, including name types, key and random number extensions. The extensions are used to implement existing protocols such as ISO9798, Kerberos or BAN-Lowe. The advantages of using these implementations...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2012

    Scaling MapReduce Applications Across Hybrid Clouds to Meet Soft Deadlines

    Cloud platforms make available a virtually infinite amount of computing resources, which are managed by third parties and are accessed by users on demand in a pay-peruse manner, with quality of service guarantees. This enables computing infrastructures to be scaled up and down accordingly to the amount of data to...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jan 2013

    Resource Provisioning based on Preempting Virtual Machines in Resource Sharing Environments

    Resource provisioning is one of the main challenges in large-scale resource sharing environments such as federated Grids. Recently, many resource management systems in these environments have started to use the lease abstraction and Virtual Machines (VMs) for resource provisioning. In resource sharing environments resource providers serve requests from external users...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jul 2012

    Double Auction-Inspired Meta-Scheduling of Parallel Applications on Global Grids

    Meta-schedulers map jobs to computational resources that are part of a grid, such as clusters, that in turn have their own local job schedulers. Existing Grid meta-schedulers either target system-centric metrics, such as utilization and throughput, or prioritize applications based on utility metrics provided by the users. The system-centric approach...

    Provided By University of Medicine and Pharmacy

  • White Papers // Feb 2013

    An Iterative Optimization Framework for Adaptive Workflow Management in Computational Clouds

    As more and more data can be generated at a faster-than-ever rate nowadays, it becomes a challenge to processing large volumes of data for complex data analysis. In order to address performance and cost issues of big data processing on clouds, the authors present a novel design of adaptive workflow...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2013

    Automated SLA Negotiation Framework for Cloud Computing

    A Service Level Agreement (SLA) is a legal contract between parties to ensure the Quality of Service (QoS) is provided to the customers. A SLA negotiation between participants assists in defining the QoS requirements of critical service-based processes. However, the negotiation process for customers is a significant task particularly when...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2009

    Meeting Application Constraints Efficiently by Deploying Cloud Resources On-Demand

    Cloud computing and Infrastructure-as-a-Service providers, such as Amazon Elastic Computing Cloud (EC2), have paved the way towards computing as a utility. The integration of the cloud providers with in-house infrastructure can be used to support on-demand resource provisioning, providing elasticity in modern applications, and making dynamic adaptation of the service...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2011

    Creating Value From Business Analytics Systems: The Impact of Strategy

    Business analytics systems can potentially contribute to firm performance and create competitive advantage. However, these benefits do not always follow from investment in business analytics technology. This paper argues that dynamic capabilities, enabled by business analytics technology, lead to value-creating actions and ultimately to improved firm performance. The authors develop...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jul 2006

    A Good Fit? Implementing Enterprise Resource Planning Systems in Loosely Coupled Organisational Systems

    Enterprise Resource Planning systems that provide a packaged solution to data management problems across an enterprise are widely implemented in modern organizations. Ongoing efforts to deliver productive outcomes from implementing ERPs have ensured that this is an area of great interest to IS researchers and practitioners. This paper investigates the...

    Provided By University of Medicine and Pharmacy

  • White Papers // Nov 2007

    Pathways to Employment for Migrants and Refugees? the Case of Social Enterprise

    This paper examines the use of social enterprise - that is, not for personal profit businesses that have strong social purpose-to support training and employment pathways for migrants and refugees facing multiple forms of exclusion. Drawing on an evaluation of a program that supports seven social enterprises in the Australian...

    Provided By University of Medicine and Pharmacy

  • White Papers // Dec 2012

    A Secure Control Framework for Resource-Limited Adversaries

    Cyber-secure networked control is modeled, analyzed, and experimentally illustrated in this paper. An attack space defined by the adversary's system knowledge, disclosure, and disruption resources is introduced. Adversaries constrained by these resources are modeled for networked control system architecture. It is shown that attack scenarios corresponding to denial-of-service, replay, zero-dynamics,...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2010

    On Robust Stability of the Belief Propagation Algorithm for LDPC Decoding

    The exact nonlinear loop gain of the Belief Propagation Algorithm (BPA) in its Log-Likelihood Ratio (LLR) formulation is computed. The nonlinear gains for regular Low-Density Parity-Check (LDPC) error correcting codes can be computed exactly using a simple formula. It is shown that in some neighborhood of the origin this gain...

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2012

    A Coordinator for Scaling Elastic Applications Across Multiple Clouds

    Cloud computing allows customers to dynamically scale their applications, software platforms, and hardware infrastructures according to negotiated Service Level Agreements (SLAs). However, resources available in a single Cloud data center are limited, thus if a large demand for an elastic application is observed in a given time, a Cloud provider...

    Provided By University of Medicine and Pharmacy

  • White Papers // Jan 2013

    CloudSim: A Toolkit for the Modeling and Simulation of Cloud Resource Management and Application Provisioning Techniques

    Cloud computing aims to power the next generation data centers and allows dynamic leasing of their server capabilities to third-party applications and end users. It enables providers in efficiently leasing out their data center capabilities for deploying application services driven by workload and QoS (Quality of Service) requirements. The application...

    Provided By University of Medicine and Pharmacy

  • White Papers // Sep 2012

    Design and Development of an Adaptive Workflow-Enabled Spatial-Temporal Analytics Framework

    Cloud computing is a suitable platform for execution of complex computational tasks and scientific simulations that are described in the form of workflows. Such applications are managed by Workflow Management System (WfMS). Because existing WfMSs are not able to autonomically provision resources to real-time applications and schedule them while supporting...

    Provided By University of Medicine and Pharmacy

  • White Papers // Aug 2012

    Cost-Effective Provisioning and Scheduling of Deadline-Constrained Applications in Hybrid Clouds

    In order to meet distributed application deadlines, Resource Management Systems (RMSs) have to utilize additional resources from public Cloud providers when in-house resources cannot cope with the demand of the applications. As a means to enable this feature, called Cloud Bursting, the RMS has to be able to determine when,...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2012

    Financial Application as a Software Service on Cloud

    In this paper, the authors propose a SaaS model that provides service to ordinary investors, unfamiliar with finance models, to evaluate the price of an option that is currently being traded before taking a decision to enter into a contract. In this model, investors may approach a financial Cloud Service...

    Provided By University of Medicine and Pharmacy

  • White Papers // May 2011

    Virtual Machines Networking for Distributed Systems Emulation

    Distributed systems are the dominant platform for any application, both in academic and industry. However, testing of applications in such a platform is hard, due to the complexity of the elements that compose these systems. Emulation is an alternative way to improve software quality for distributed applications, allowing analysis of...

    Provided By University of Medicine and Pharmacy

  • White Papers // Mar 2011

    Optimizing Makespan and Reliability for Workflow Applications With Reputation and Look-Ahead Genetic Algorithm

    For applications in large-scale distributed systems, it is becoming increasingly important to provide reliable scheduling by evaluating the reliability of resources. However, most existing reputation models used for reliability evaluation ignore the critical influence of task runtime. In addition, most previous work uses list heuristics to optimize the makespan and...

    Provided By University of Medicine and Pharmacy

  • White Papers // Oct 2009

    On the Role of Flows and Sessions in Internet Traffic Modeling: An Explorative Toy-Model

    In this paper, the authors present a simple toy-model that is able to explain certain empirical observations reported in a set of previous papers by Hohn et al. about the wavelet spectrum of real traffic traces. Therein, they found that the wavelet spectrum is substantially invariant to flow scrambling and...

    Provided By University of Medicine and Pharmacy