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University of Warsaw
(27 results)-
White Papers
Autonomous Tools for Grid Management, Monitoring and Optimization
July 22, 2007, 12:00am PDT
The authors outline design and lines of development of autonomous tools for the computing Grid management, monitoring and optimization. The management is proposed to be based on the notion of...
Provided by University of Warsaw
-
White Papers
Microscopic Study Reveals The Singular Origins Of Growth
December 3, 2008, 12:00am PST
Anderson proposed the concept of complexity in order to describe the emergence and growth of macroscopic collective patterns out of the simple interactions of many microscopic agents. In the...
Provided by University of Warsaw
-
Whitepapers
Online Adaptive Fault Tolerant Based Feedback Control Scheduling Algorithm for Multiprocessor Embedded Systems
May 19, 2012, 12:00am PDT
Since some years ago, use of Feedback Control Scheduling Algorithm (FCSA) in the control scheduling co-design of multiprocessor embedded system has increased. FCSA provides Quality of Service...
Provided by University of Warsaw
-
Whitepapers
Spectrum Sensing Based on Recovered Secondary Frame in the Presence of Realistic Decoding Errors
May 24, 2012, 12:00am PDT
The performance of spectrum sensing using the received secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the...
Provided by University of Warsaw
-
Whitepapers
New Analytical Framework for the Products of Independent RVs With Wireless Applications
March 12, 2012, 12:00am PDT
A novel analytical framework for evaluating the statistics of the products of independent random variables is proposed. Compared with other methods which use either an infinite series or a special...
Provided by University of Warsaw
-
Whitepapers
Crash-Tolerant Collision-Free Data Aggregation Scheduling for Wireless Sensor Networks
July 30, 2010, 12:00am PDT
Data aggregation scheduling, or convergecast, is a fundamental pattern of communication in Wireless Sensor Networks (WSNs), where sensor nodes aggregate and relay data to a sink node. For WSN...
Provided by University of Warsaw
-
Whitepapers
Beyond the Golden Run: Evaluating the Use of Reference Run Models in Fault Injection Analysis
May 21, 2009, 12:00am PDT
Fault Injection (FI) has been shown to be an effective approach to assessing the dependability of software systems. To determine the impact of faults injected during FI, a given oracle is needed....
Provided by University of Warsaw
-
Whitepapers
An Outlook on the Impact of Trust Models on Routing in Mobile Ad Hoc Networks (MANETs)
March 13, 2009, 12:00am PDT
In a Mobile Ad-hoc NETwork (MANET), nodes cannot rely on any fixed infrastructure for routing purposes. Rather, they have to cooperate to achieve this objective. However, the absence of any...
Provided by University of Warsaw
-
Whitepapers
A System for Dynamic Server Allocation in Application Server Clusters
March 9, 2009, 12:00am PDT
Application server clusters are often used to service high-throughput web applications. In order to host more than a single application, an organization will usually procure a separate cluster for...
Provided by University of Warsaw
-
Whitepapers
A Scheduling Algorithm for Revenue Maximisation for Cluster-Based Internet Services
February 5, 2008, 12:00am PST
This paper proposes a new priority scheduling algorithm to maximise site revenue of session-based multi-tier Internet services in a multicluster environment. This research is part of a larger...
Provided by University of Warsaw
-
Whitepapers
Networking for Multi-Agents: Beyond a Local View
May 10, 2009, 12:00am PDT
Decentralised multi-agent systems have empowered individual agents to actively select their course of action to achieve their goals. However, this leaves agents with a limited view of their...
Provided by University of Warsaw
-
Whitepapers
Issues on the Design of Efficient Fail-Safe Fault Tolerance
August 7, 2009, 12:00am PDT
The design of a fault-tolerant program is known to be an inherently difficult task. Decisions taken during the design process will invariably have an impact on the efficiency of the resulting...
Provided by University of Warsaw
-
Whitepapers
Model-Driven Server Allocation in Distributed Enterprise Systems
February 13, 2009, 12:00am PST
Internet Service Providers (ISPs) usually use several server pools to host different web applications, to ensure smooth system management and minimum interference between applications. The...
Provided by University of Warsaw
-
Whitepapers
Norm Emergence in Tag-Based Cooperation
March 11, 2010, 12:00am PST
In multi-agent systems norms are an important influence that can engender cooperation by constraining actions and binding groups together. A key question is how to establish a suitable set of...
Provided by University of Warsaw
-
Whitepapers
On the Design of Mobility-Tolerant TDMA-Based Media Access Control (MAC) Protocol for Mobile Sensor Networks
September 28, 2007, 12:00am PDT
Several Media Access Control (MAC) protocols proposed for wireless sensor networks assume nodes to be stationary. This can lead to poor network performance, as well as fast depletion of energy in...
Provided by University of Warsaw
-
Whitepapers
On the Parallelisation of MCMC by Speculative Chain Execution
January 27, 2010, 12:00am PST
The increasing availability of multi-core and multiprocessor architectures provides new opportunities for improving the performance of many computer simulations. Markov Chain Monte Carlo (MCMC)...
Provided by University of Warsaw
-
Whitepapers
On the Tradeoff Between Privacy and Energy in Wireless Sensor Networks
May 14, 2010, 12:00am PDT
Source location privacy is becoming an increasingly important property of some wireless sensor network applications. The fake source technique has been proposed as an approach for handling the...
Provided by University of Warsaw
-
Whitepapers
Parallelising Wavefront Applications on General-Purpose GPU Devices
June 1, 2010, 12:00am PDT
Pipelined wavefront applications form a large portion of the high performance scientific computing workloads at supercomputing centres such as LANL in the United States and AWE in the United...
Provided by University of Warsaw
-
Whitepapers
Performance Prediction for Running Workflows Under Role-Based Authorization Mechanisms
May 24, 2009, 12:00am PDT
When investigating the performance of running scientific/commercial workflows in parallel and distributed systems, the authors often take into account only the resources allocated to the tasks...
Provided by University of Warsaw
-
Whitepapers
On the Acceleration of Wavefront Applications Using Distributed Many-Core Architectures
September 28, 2011, 12:00am PDT
In this paper, the authors investigate the use of distributed GPU-based architectures to accelerate pipelined wavefront applications - a ubiquitous class of parallel algorithm used for the...
Provided by University of Warsaw
-
Whitepapers
Light-Weight Parallel I/O Analysis at Scale
July 18, 2011, 12:00am PDT
Input/Output (I/O) operations can represent a significant proportion of the run-time when large scientific applications are run in parallel. Although there have been advances in the form of...
Provided by University of Warsaw
-
Whitepapers
WMTools - Assessing Parallel Application Memory Utilisation at Scale
July 18, 2011, 12:00am PDT
The divergence between processor and memory performance has been a well discussed aspect of computer architecture literature for some years. The recent use of multi-core processor designs has,...
Provided by University of Warsaw
-
Whitepapers
A Framework for Data Center Scale Dynamic Resource Allocation Algorithms
May 27, 2011, 12:00am PDT
The scale and complexity of online applications and e-business infrastructures has led service providers to rely on the capabilities of large-scale hosting platforms, i.e., data centers. Dynamic...
Provided by University of Warsaw
-
Whitepapers
An Automated Wrapper-Based Approach to the Design of Dependable Software
May 27, 2011, 12:00am PDT
The design of dependable software systems invariably comprises two main activities: the design of dependability mechanisms, and the location of dependability mechanisms. It has been shown that...
Provided by University of Warsaw
-
Whitepapers
A Modular Failure-Aware Resource Allocation Architecture for Cloud Computing
June 6, 2011, 12:00am PDT
The prevalence of cloud computing environments and the ever increasing reliance of large organisations on computational resources has meant that service providers must operate at unprecedented...
Provided by University of Warsaw
-
Whitepapers
WMTrace - A Lightweight Memory Allocation Tracker and Analysis Framework
June 6, 2011, 12:00am PDT
The diverging gap between processor and memory performance has been a well discussed aspect of computer architecture literature for some years. The use of multi-core processor designs has,...
Provided by University of Warsaw
-
White Papers
Measuring Network Effects in Mobile Telecommunications Markets With Stated-Preference Valuation Methods
September 15, 2010, 12:00am PDT
This paper demonstrates how stated-preference methods can be applied to modeling consumers' preferences in the field of mobile telecommunications, and to measuring and the valuation of network...
Provided by University of Warsaw
-
Whitepapers
WMTrace - A Lightweight Memory Allocation Tracker and Analysis Framework
June 6, 2011, 12:00am PDT
The diverging gap between processor and memory performance has been a well discussed aspect of computer architecture literature for some years. The use of multi-core processor designs has,...
Provided by University of Warsaw
-
Whitepapers
A Modular Failure-Aware Resource Allocation Architecture for Cloud Computing
June 6, 2011, 12:00am PDT
The prevalence of cloud computing environments and the ever increasing reliance of large organisations on computational resources has meant that service providers must operate at unprecedented...
Provided by University of Warsaw
-
Whitepapers
An Automated Wrapper-Based Approach to the Design of Dependable Software
May 27, 2011, 12:00am PDT
The design of dependable software systems invariably comprises two main activities: the design of dependability mechanisms, and the location of dependability mechanisms. It has been shown that...
Provided by University of Warsaw
-
Whitepapers
A Framework for Data Center Scale Dynamic Resource Allocation Algorithms
May 27, 2011, 12:00am PDT
The scale and complexity of online applications and e-business infrastructures has led service providers to rely on the capabilities of large-scale hosting platforms, i.e., data centers. Dynamic...
Provided by University of Warsaw
-
Whitepapers
WMTools - Assessing Parallel Application Memory Utilisation at Scale
July 18, 2011, 12:00am PDT
The divergence between processor and memory performance has been a well discussed aspect of computer architecture literature for some years. The recent use of multi-core processor designs has,...
Provided by University of Warsaw
-
Whitepapers
Light-Weight Parallel I/O Analysis at Scale
July 18, 2011, 12:00am PDT
Input/Output (I/O) operations can represent a significant proportion of the run-time when large scientific applications are run in parallel. Although there have been advances in the form of...
Provided by University of Warsaw
-
Whitepapers
On the Acceleration of Wavefront Applications Using Distributed Many-Core Architectures
September 28, 2011, 12:00am PDT
In this paper, the authors investigate the use of distributed GPU-based architectures to accelerate pipelined wavefront applications - a ubiquitous class of parallel algorithm used for the...
Provided by University of Warsaw
-
Whitepapers
Performance Prediction for Running Workflows Under Role-Based Authorization Mechanisms
May 24, 2009, 12:00am PDT
When investigating the performance of running scientific/commercial workflows in parallel and distributed systems, the authors often take into account only the resources allocated to the tasks...
Provided by University of Warsaw
-
Whitepapers
Parallelising Wavefront Applications on General-Purpose GPU Devices
June 1, 2010, 12:00am PDT
Pipelined wavefront applications form a large portion of the high performance scientific computing workloads at supercomputing centres such as LANL in the United States and AWE in the United...
Provided by University of Warsaw
-
Whitepapers
On the Tradeoff Between Privacy and Energy in Wireless Sensor Networks
May 14, 2010, 12:00am PDT
Source location privacy is becoming an increasingly important property of some wireless sensor network applications. The fake source technique has been proposed as an approach for handling the...
Provided by University of Warsaw
-
Whitepapers
On the Parallelisation of MCMC by Speculative Chain Execution
January 27, 2010, 12:00am PST
The increasing availability of multi-core and multiprocessor architectures provides new opportunities for improving the performance of many computer simulations. Markov Chain Monte Carlo (MCMC)...
Provided by University of Warsaw
-
Whitepapers
On the Design of Mobility-Tolerant TDMA-Based Media Access Control (MAC) Protocol for Mobile Sensor Networks
September 28, 2007, 12:00am PDT
Several Media Access Control (MAC) protocols proposed for wireless sensor networks assume nodes to be stationary. This can lead to poor network performance, as well as fast depletion of energy in...
Provided by University of Warsaw
-
Whitepapers
Norm Emergence in Tag-Based Cooperation
March 11, 2010, 12:00am PST
In multi-agent systems norms are an important influence that can engender cooperation by constraining actions and binding groups together. A key question is how to establish a suitable set of...
Provided by University of Warsaw
-
Whitepapers
Model-Driven Server Allocation in Distributed Enterprise Systems
February 13, 2009, 12:00am PST
Internet Service Providers (ISPs) usually use several server pools to host different web applications, to ensure smooth system management and minimum interference between applications. The...
Provided by University of Warsaw
-
Whitepapers
Issues on the Design of Efficient Fail-Safe Fault Tolerance
August 7, 2009, 12:00am PDT
The design of a fault-tolerant program is known to be an inherently difficult task. Decisions taken during the design process will invariably have an impact on the efficiency of the resulting...
Provided by University of Warsaw
-
Whitepapers
Networking for Multi-Agents: Beyond a Local View
May 10, 2009, 12:00am PDT
Decentralised multi-agent systems have empowered individual agents to actively select their course of action to achieve their goals. However, this leaves agents with a limited view of their...
Provided by University of Warsaw
-
Whitepapers
A Scheduling Algorithm for Revenue Maximisation for Cluster-Based Internet Services
February 5, 2008, 12:00am PST
This paper proposes a new priority scheduling algorithm to maximise site revenue of session-based multi-tier Internet services in a multicluster environment. This research is part of a larger...
Provided by University of Warsaw
-
Whitepapers
A System for Dynamic Server Allocation in Application Server Clusters
March 9, 2009, 12:00am PDT
Application server clusters are often used to service high-throughput web applications. In order to host more than a single application, an organization will usually procure a separate cluster for...
Provided by University of Warsaw
-
Whitepapers
An Outlook on the Impact of Trust Models on Routing in Mobile Ad Hoc Networks (MANETs)
March 13, 2009, 12:00am PDT
In a Mobile Ad-hoc NETwork (MANET), nodes cannot rely on any fixed infrastructure for routing purposes. Rather, they have to cooperate to achieve this objective. However, the absence of any...
Provided by University of Warsaw
-
Whitepapers
Beyond the Golden Run: Evaluating the Use of Reference Run Models in Fault Injection Analysis
May 21, 2009, 12:00am PDT
Fault Injection (FI) has been shown to be an effective approach to assessing the dependability of software systems. To determine the impact of faults injected during FI, a given oracle is needed....
Provided by University of Warsaw
-
Whitepapers
Crash-Tolerant Collision-Free Data Aggregation Scheduling for Wireless Sensor Networks
July 30, 2010, 12:00am PDT
Data aggregation scheduling, or convergecast, is a fundamental pattern of communication in Wireless Sensor Networks (WSNs), where sensor nodes aggregate and relay data to a sink node. For WSN...
Provided by University of Warsaw
-
Whitepapers
New Analytical Framework for the Products of Independent RVs With Wireless Applications
March 12, 2012, 12:00am PDT
A novel analytical framework for evaluating the statistics of the products of independent random variables is proposed. Compared with other methods which use either an infinite series or a special...
Provided by University of Warsaw
-
Whitepapers
Spectrum Sensing Based on Recovered Secondary Frame in the Presence of Realistic Decoding Errors
May 24, 2012, 12:00am PDT
The performance of spectrum sensing using the received secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the...
Provided by University of Warsaw
-
Whitepapers
Online Adaptive Fault Tolerant Based Feedback Control Scheduling Algorithm for Multiprocessor Embedded Systems
May 19, 2012, 12:00am PDT
Since some years ago, use of Feedback Control Scheduling Algorithm (FCSA) in the control scheduling co-design of multiprocessor embedded system has increased. FCSA provides Quality of Service...
Provided by University of Warsaw
-
White Papers
Measuring Network Effects in Mobile Telecommunications Markets With Stated-Preference Valuation Methods
September 15, 2010, 12:00am PDT
This paper demonstrates how stated-preference methods can be applied to modeling consumers' preferences in the field of mobile telecommunications, and to measuring and the valuation of network...
Provided by University of Warsaw
-
White Papers
Microscopic Study Reveals The Singular Origins Of Growth
December 3, 2008, 12:00am PST
Anderson proposed the concept of complexity in order to describe the emergence and growth of macroscopic collective patterns out of the simple interactions of many microscopic agents. In the...
Provided by University of Warsaw
-
White Papers
Autonomous Tools for Grid Management, Monitoring and Optimization
July 22, 2007, 12:00am PDT
The authors outline design and lines of development of autonomous tools for the computing Grid management, monitoring and optimization. The management is proposed to be based on the notion of...
Provided by University of Warsaw
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