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University of Victoria
(38 results)-
White Papers
HEP Specific Benchmarks of Virtual Machines on Multi-Core CPU Architectures
May 14, 2009, 12:00am PDT
Virtualization technologies such as Xen can be used in order to satisfy the disparate and often incompatible system requirements of different user groups in shared-use computing facilities. This...
Provided by University of Victoria
-
White Papers
Denoising by Spatial Domain Averaging for Wireless Local Area Network Terminal Localization
November 21, 2010, 12:00am PST
Terminal localization for indoor Wireless Local Area Networks (WLANs) is critical for the deployment of location-aware computing inside of buildings. A major challenge is obtaining high...
Provided by University of Victoria
-
White Papers
Co-Induction and Computational Semantics for Public-Key Encryption With Key Cycles
February 9, 2011, 12:00am PST
The authors consider the computational soundness and completeness of formal indistinguishability in public-key cryptography, in the presence of key-cycles. This problem in the absence of...
Provided by University of Victoria
-
White Papers
The Promises and Perils of Mining Git
April 28, 2009, 12:00am PDT
The authors are now witnessing the rapid growth of Decentralized Source Code Management (DSCM) systems, in which every developer has her own repository. DSCMs facilitate a style of collaboration...
Provided by University of Victoria
-
White Papers
General Model for Single and Multiple Channels WLANs With Quality of Service Support
November 1, 2009, 12:00am PDT
In this paper the authors develop an intergraded model for request mechanism and data transmission in the uplink phase in the presence of channel noise. This model supports quality of service. The...
Provided by University of Victoria
-
White Papers
Experiences With Client-Based Speculative Remote Display
April 25, 2008, 12:00am PDT
The authors propose an approach to remote display systems in which the client predicts the screen update events that the server will send and applies them to the screen immediately, thus...
Provided by University of Victoria
-
White Papers
Structured Peer-to-Peer Overlay Networks: Ideal Botnets Command and Control Infrastructures?
July 11, 2008, 12:00am PDT
Botnets, in particular the Storm botnet, have been garnering much attention as vehicles for Internet crime. Storm uses a modified version of Overnet, a structured Peer-To-Peer (P2P) overlay...
Provided by University of Victoria
-
White Papers
License Integration Patterns: Addressing License Mismatches in Component-Based Development
February 13, 2009, 12:00am PST
In this paper the authors address the problem of combining software components with different and possibly incompatible legal licenses to create a software application that does not violate any of...
Provided by University of Victoria
-
Whitepapers
Neural Networks and Database Systems
February 25, 2008, 12:00am PST
Object-oriented database systems have proven very valuable at handling and administrating complex objects. In the following guidelines for embedding neural networks into such systems are...
Provided by University of Victoria
-
Whitepapers
Cooperative Positioning When Using Local Position Information: Theoretical Framework and Error Analysis
July 1, 2012, 12:00am PDT
Global positioning technologies such as GPS are ubiquitously available for modern smartphones, on-board navigation computers of vehicles, sports appliances, etc. Positioning enables new networking...
Provided by University of Victoria
-
White Papers
Data Intensive High Energy Physics Analysis in a Distributed Cloud
January 1, 2011, 12:00am PST
The authors show that distributed Infrastructure-as-a-Service (IaaS) compute clouds can be effectively used for the analysis of high energy physics data. They have designed a distributed cloud...
Provided by University of Victoria
-
White Papers
Cloud Scheduler: A Resource Manager for Distributed Compute Clouds
June 30, 2010, 12:00am PDT
The availability of Infrastructure-as-a-Service (IaaS) computing clouds gives researchers access to a large set of new resources for running complex scientific applications. However, exploiting...
Provided by University of Victoria
-
White Papers
Practical Scheduling Algorithms for Concurrent Transmissions in Rate-Adaptive Wireless Networks
December 21, 2009, 12:00am PST
Optimal scheduling for concurrent transmissions in rate-non-adaptive wireless networks is NP-hard. Optimal scheduling in rate-adaptive wireless networks is even more difficult, because, due to...
Provided by University of Victoria
-
White Papers
Network Modulation: A New Dimension to Enhance Wireless Network Performance
January 22, 2011, 12:00am PST
The authors introduce an approach called network modulation which gives a new dimension to improve wireless network throughput and save energy. In current wireless systems, when a source transmits...
Provided by University of Victoria
-
White Papers
Run to Potential: Sweep Coverage in Wireless Sensor Networks
July 4, 2009, 12:00am PDT
Wireless sensor networks have become a promising technology in monitoring physical world. In many applications with wireless sensor networks, it is essential to understand how well an interested...
Provided by University of Victoria
-
White Papers
A Distributed Directional-to-Directional MAC Protocol for Asynchronous Ad Hoc Networks
July 21, 2008, 12:00am PDT
The use of directional antennae in ad hoc networks has received growing attention in recent years. However, most existing directional MAC protocols assume interchangeable directional and...
Provided by University of Victoria
-
White Papers
Range-Free Sensor Localization With Ring Overlapping Based on Comparison of Received Signal Strength Indicator
January 1, 2011, 12:00am PST
Sensor localization has become an essential requirement for many applications over wireless sensor networks. Radio irregularity and stringent constraints on hardware cost and battery power,...
Provided by University of Victoria
-
White Papers
Evolving Schemes for Streaming XML
August 7, 2009, 12:00am PDT
In this paper, the authors model schema evolution for XML by defining formal language operators on Visibly Pushdown Languages (VPLs). Their goal is to provide a framework for efficient validation...
Provided by University of Victoria
-
White Papers
Mining Frequent Highly-Correlated Item-Pairs at Very Low Support Levels
January 14, 2010, 12:00am PST
The ability to extract frequent pairs from a set of transactions is one of the fundamental building blocks of data mining. When the number of items in a given transaction is relatively small the...
Provided by University of Victoria
-
White Papers
Scalable APRIORI-Based Frequent Pattern Discovery
June 26, 2009, 12:00am PDT
Frequent pattern discovery, the task of finding sets of items that frequently occur together in a dataset, has been at the core of the field of data mining for the past sixteen years. In that...
Provided by University of Victoria
-
White Papers
Preferential Regular Path Queries
December 5, 2008, 12:00am PST
In this paper, the authors introduce preferential regular path queries. These are regular path queries whose symbols are annotated with preference weights for "Scaling" up or down the intrinsic...
Provided by University of Victoria
-
White Papers
A New Method for Indexing Genomes Using On-Disk Suffix Trees
December 5, 2008, 12:00am PST
The authors propose a new method to build persistent suffix trees for indexing the genomic data. Their algorithm DiGeST (Disk-Based Genomic Suffix Tree) improves significantly over previous work...
Provided by University of Victoria
-
White Papers
Rewriting of Visibly Pushdown Languages for XML Data Integration
December 5, 2008, 12:00am PST
In this paper, the authors focus on XML data integration by studying rewritings of XML target schemas in terms of source schemas. Rewriting is very important in data integration systems where the...
Provided by University of Victoria
-
White Papers
Scalable Ubiquitous Data Access in Clustered Sensor Networks
April 1, 2008, 12:00am PDT
Wireless sensor networks have drawn much attention due to their ability to monitor ecosystems and wildlife habitats. In such systems, the data should be intelligently collected to avoid human...
Provided by University of Victoria
-
White Papers
Visibly Pushdown Transducers for Approximate Validation of Streaming XML
November 15, 2007, 12:00am PST
Visibly Pushdown Languages (VPLs), recognized by Visibly Pushdown Automata (VPAs), are a nicely behaved family of context-free languages. It has been shown that VPAs are equivalent to Extended...
Provided by University of Victoria
-
White Papers
Shortest Path Approaches for the Longest Common Subsequence of a Set of Strings
August 3, 2007, 12:00am PDT
The authors investigate the k-LCS problem that is finding a Longest Common Subsequence (LCS) for k given input strings. The problem is known to have practical solutions for k = 2, but for higher...
Provided by University of Victoria
-
White Papers
Distributed Multi-Source Regular Path Queries
June 17, 2007, 12:00am PDT
Regular path queries are the building block of almost any mechanism for querying semi-structured data. Despite the fact that the main applications of such data are distributed, there are only few...
Provided by University of Victoria
-
White Papers
Detecting Connection-Chains: A Data Mining Approach
January 1, 2010, 12:00am PST
A connection-chain refers to a mechanism in which some-one recursively logs into a host, then from there logs into another host, and so on. Connection-chains represent an important vector in many...
Provided by University of Victoria
-
White Papers
Towards Secure and Scalable Computation in Peer-to-Peer Networks
January 1, 2012, 12:00am PST
The potential of peer-to-peer(p2p) networks has been hobbled by the authors' lack of understanding of how to design robust algorithms for large-scale networks. Networks that are truly p2p are...
Provided by University of Victoria
-
White Papers
Conflict on a Communication Channel
February 10, 2011, 12:00am PST
Imagine that Alice wants to send a message to Bob, and that Carol wants to prevent this. Assume there is a communication channel between Alice and Bob, but that Carol is capable of blocking this...
Provided by University of Victoria
-
White Papers
ET (Smart) Phone Home!
October 10, 2011, 12:00am PDT
Most home users are not able to troubleshoot advanced network issues themselves. Hours on the phone with an ISP's customer representative is a common way to solve this problem. With the advent of...
Provided by University of Victoria
-
White Papers
Performance Modeling of Stochastic Networks With Network Coding
April 20, 2009, 12:00am PDT
With network coding, a network node can code information flows before forwarding them. While it has been theoretically proved that network coding can achieve maximum network throughput, the...
Provided by University of Victoria
-
White Papers
Matrix Code: A Language for Parallel Development of Code and Proof
November 17, 2011, 12:00am PST
A program in matrix code is a matrix that can be interpreted in three ways. First, it is an executable program. Second, the matrix can be interpreted as a set of Floyd verification conditions that...
Provided by University of Victoria
-
White Papers
The Proactive and Reactive Digital Forensics Investigation Process: A Systematic Literature Review
October 1, 2011, 12:00am PDT
Recent papers have urged the need for new forensic techniques and tools able to investigate anti-forensics methods, and have promoted automation of live investigation. Such techniques and tools...
Provided by University of Victoria
-
White Papers
Discovering Algorithms With Matrix Code
May 8, 2012, 12:00am PDT
In first-year programming courses it is often difficult to show students how an algorithm can be discovered. In this paper, the authors present a program format that supports the development from...
Provided by University of Victoria
-
White Papers
Robust Range-Free Localization in Wireless Sensor Networks
July 31, 2008, 12:00am PDT
In wireless sensor networks, sensors should have some mechanisms to learn their locations since sensed data without associated location information may be meaningless. While many sensor...
Provided by University of Victoria
-
Whitepapers
Low Complexity Distortionless Techniques for Peak Power Reduction in OFDM Communication Systems
May 19, 2012, 12:00am PDT
A high Peak-to-Average Power Ratio (PAPR) is one of the major drawbacks to using Orthogonal Frequency Division Multiplexing (OFDM) modulation. The three most effective distortionless techniques...
Provided by University of Victoria
-
White Papers
Hand Held Analog Television Over WiMAX Executed in SW
January 25, 2009, 12:00am PST
This paper describes a device capable of performing the following tasks: it samples and decodes the composite video analog TV signal, it encodes the resulting RGB data into a MPEG-4 stream and...
Provided by University of Victoria
-
Whitepapers
Cooperative Positioning When Using Local Position Information: Theoretical Framework and Error Analysis
July 1, 2012, 12:00am PDT
Global positioning technologies such as GPS are ubiquitously available for modern smartphones, on-board navigation computers of vehicles, sports appliances, etc. Positioning enables new networking...
Provided by University of Victoria
-
Whitepapers
Neural Networks and Database Systems
February 25, 2008, 12:00am PST
Object-oriented database systems have proven very valuable at handling and administrating complex objects. In the following guidelines for embedding neural networks into such systems are...
Provided by University of Victoria
-
Whitepapers
Low Complexity Distortionless Techniques for Peak Power Reduction in OFDM Communication Systems
May 19, 2012, 12:00am PDT
A high Peak-to-Average Power Ratio (PAPR) is one of the major drawbacks to using Orthogonal Frequency Division Multiplexing (OFDM) modulation. The three most effective distortionless techniques...
Provided by University of Victoria
-
White Papers
Robust Range-Free Localization in Wireless Sensor Networks
July 31, 2008, 12:00am PDT
In wireless sensor networks, sensors should have some mechanisms to learn their locations since sensed data without associated location information may be meaningless. While many sensor...
Provided by University of Victoria
-
White Papers
Discovering Algorithms With Matrix Code
May 8, 2012, 12:00am PDT
In first-year programming courses it is often difficult to show students how an algorithm can be discovered. In this paper, the authors present a program format that supports the development from...
Provided by University of Victoria
-
White Papers
The Proactive and Reactive Digital Forensics Investigation Process: A Systematic Literature Review
October 1, 2011, 12:00am PDT
Recent papers have urged the need for new forensic techniques and tools able to investigate anti-forensics methods, and have promoted automation of live investigation. Such techniques and tools...
Provided by University of Victoria
-
White Papers
Matrix Code: A Language for Parallel Development of Code and Proof
November 17, 2011, 12:00am PST
A program in matrix code is a matrix that can be interpreted in three ways. First, it is an executable program. Second, the matrix can be interpreted as a set of Floyd verification conditions that...
Provided by University of Victoria
-
White Papers
Performance Modeling of Stochastic Networks With Network Coding
April 20, 2009, 12:00am PDT
With network coding, a network node can code information flows before forwarding them. While it has been theoretically proved that network coding can achieve maximum network throughput, the...
Provided by University of Victoria
-
White Papers
ET (Smart) Phone Home!
October 10, 2011, 12:00am PDT
Most home users are not able to troubleshoot advanced network issues themselves. Hours on the phone with an ISP's customer representative is a common way to solve this problem. With the advent of...
Provided by University of Victoria
-
White Papers
Conflict on a Communication Channel
February 10, 2011, 12:00am PST
Imagine that Alice wants to send a message to Bob, and that Carol wants to prevent this. Assume there is a communication channel between Alice and Bob, but that Carol is capable of blocking this...
Provided by University of Victoria
-
White Papers
Towards Secure and Scalable Computation in Peer-to-Peer Networks
January 1, 2012, 12:00am PST
The potential of peer-to-peer(p2p) networks has been hobbled by the authors' lack of understanding of how to design robust algorithms for large-scale networks. Networks that are truly p2p are...
Provided by University of Victoria
-
White Papers
Detecting Connection-Chains: A Data Mining Approach
January 1, 2010, 12:00am PST
A connection-chain refers to a mechanism in which some-one recursively logs into a host, then from there logs into another host, and so on. Connection-chains represent an important vector in many...
Provided by University of Victoria
-
White Papers
Distributed Multi-Source Regular Path Queries
June 17, 2007, 12:00am PDT
Regular path queries are the building block of almost any mechanism for querying semi-structured data. Despite the fact that the main applications of such data are distributed, there are only few...
Provided by University of Victoria
-
White Papers
Shortest Path Approaches for the Longest Common Subsequence of a Set of Strings
August 3, 2007, 12:00am PDT
The authors investigate the k-LCS problem that is finding a Longest Common Subsequence (LCS) for k given input strings. The problem is known to have practical solutions for k = 2, but for higher...
Provided by University of Victoria
-
White Papers
Visibly Pushdown Transducers for Approximate Validation of Streaming XML
November 15, 2007, 12:00am PST
Visibly Pushdown Languages (VPLs), recognized by Visibly Pushdown Automata (VPAs), are a nicely behaved family of context-free languages. It has been shown that VPAs are equivalent to Extended...
Provided by University of Victoria
-
White Papers
Scalable Ubiquitous Data Access in Clustered Sensor Networks
April 1, 2008, 12:00am PDT
Wireless sensor networks have drawn much attention due to their ability to monitor ecosystems and wildlife habitats. In such systems, the data should be intelligently collected to avoid human...
Provided by University of Victoria
-
White Papers
Rewriting of Visibly Pushdown Languages for XML Data Integration
December 5, 2008, 12:00am PST
In this paper, the authors focus on XML data integration by studying rewritings of XML target schemas in terms of source schemas. Rewriting is very important in data integration systems where the...
Provided by University of Victoria
-
White Papers
A New Method for Indexing Genomes Using On-Disk Suffix Trees
December 5, 2008, 12:00am PST
The authors propose a new method to build persistent suffix trees for indexing the genomic data. Their algorithm DiGeST (Disk-Based Genomic Suffix Tree) improves significantly over previous work...
Provided by University of Victoria
-
White Papers
Preferential Regular Path Queries
December 5, 2008, 12:00am PST
In this paper, the authors introduce preferential regular path queries. These are regular path queries whose symbols are annotated with preference weights for "Scaling" up or down the intrinsic...
Provided by University of Victoria
-
White Papers
Scalable APRIORI-Based Frequent Pattern Discovery
June 26, 2009, 12:00am PDT
Frequent pattern discovery, the task of finding sets of items that frequently occur together in a dataset, has been at the core of the field of data mining for the past sixteen years. In that...
Provided by University of Victoria
-
White Papers
Mining Frequent Highly-Correlated Item-Pairs at Very Low Support Levels
January 14, 2010, 12:00am PST
The ability to extract frequent pairs from a set of transactions is one of the fundamental building blocks of data mining. When the number of items in a given transaction is relatively small the...
Provided by University of Victoria
-
White Papers
Evolving Schemes for Streaming XML
August 7, 2009, 12:00am PDT
In this paper, the authors model schema evolution for XML by defining formal language operators on Visibly Pushdown Languages (VPLs). Their goal is to provide a framework for efficient validation...
Provided by University of Victoria
-
White Papers
Range-Free Sensor Localization With Ring Overlapping Based on Comparison of Received Signal Strength Indicator
January 1, 2011, 12:00am PST
Sensor localization has become an essential requirement for many applications over wireless sensor networks. Radio irregularity and stringent constraints on hardware cost and battery power,...
Provided by University of Victoria
-
White Papers
A Distributed Directional-to-Directional MAC Protocol for Asynchronous Ad Hoc Networks
July 21, 2008, 12:00am PDT
The use of directional antennae in ad hoc networks has received growing attention in recent years. However, most existing directional MAC protocols assume interchangeable directional and...
Provided by University of Victoria
-
White Papers
Run to Potential: Sweep Coverage in Wireless Sensor Networks
July 4, 2009, 12:00am PDT
Wireless sensor networks have become a promising technology in monitoring physical world. In many applications with wireless sensor networks, it is essential to understand how well an interested...
Provided by University of Victoria
-
White Papers
Network Modulation: A New Dimension to Enhance Wireless Network Performance
January 22, 2011, 12:00am PST
The authors introduce an approach called network modulation which gives a new dimension to improve wireless network throughput and save energy. In current wireless systems, when a source transmits...
Provided by University of Victoria
-
White Papers
Practical Scheduling Algorithms for Concurrent Transmissions in Rate-Adaptive Wireless Networks
December 21, 2009, 12:00am PST
Optimal scheduling for concurrent transmissions in rate-non-adaptive wireless networks is NP-hard. Optimal scheduling in rate-adaptive wireless networks is even more difficult, because, due to...
Provided by University of Victoria
-
White Papers
Cloud Scheduler: A Resource Manager for Distributed Compute Clouds
June 30, 2010, 12:00am PDT
The availability of Infrastructure-as-a-Service (IaaS) computing clouds gives researchers access to a large set of new resources for running complex scientific applications. However, exploiting...
Provided by University of Victoria
-
White Papers
Data Intensive High Energy Physics Analysis in a Distributed Cloud
January 1, 2011, 12:00am PST
The authors show that distributed Infrastructure-as-a-Service (IaaS) compute clouds can be effectively used for the analysis of high energy physics data. They have designed a distributed cloud...
Provided by University of Victoria
-
White Papers
License Integration Patterns: Addressing License Mismatches in Component-Based Development
February 13, 2009, 12:00am PST
In this paper the authors address the problem of combining software components with different and possibly incompatible legal licenses to create a software application that does not violate any of...
Provided by University of Victoria
-
White Papers
Structured Peer-to-Peer Overlay Networks: Ideal Botnets Command and Control Infrastructures?
July 11, 2008, 12:00am PDT
Botnets, in particular the Storm botnet, have been garnering much attention as vehicles for Internet crime. Storm uses a modified version of Overnet, a structured Peer-To-Peer (P2P) overlay...
Provided by University of Victoria
-
White Papers
Experiences With Client-Based Speculative Remote Display
April 25, 2008, 12:00am PDT
The authors propose an approach to remote display systems in which the client predicts the screen update events that the server will send and applies them to the screen immediately, thus...
Provided by University of Victoria
-
White Papers
General Model for Single and Multiple Channels WLANs With Quality of Service Support
November 1, 2009, 12:00am PDT
In this paper the authors develop an intergraded model for request mechanism and data transmission in the uplink phase in the presence of channel noise. This model supports quality of service. The...
Provided by University of Victoria
-
White Papers
The Promises and Perils of Mining Git
April 28, 2009, 12:00am PDT
The authors are now witnessing the rapid growth of Decentralized Source Code Management (DSCM) systems, in which every developer has her own repository. DSCMs facilitate a style of collaboration...
Provided by University of Victoria
-
White Papers
Co-Induction and Computational Semantics for Public-Key Encryption With Key Cycles
February 9, 2011, 12:00am PST
The authors consider the computational soundness and completeness of formal indistinguishability in public-key cryptography, in the presence of key-cycles. This problem in the absence of...
Provided by University of Victoria
-
White Papers
Denoising by Spatial Domain Averaging for Wireless Local Area Network Terminal Localization
November 21, 2010, 12:00am PST
Terminal localization for indoor Wireless Local Area Networks (WLANs) is critical for the deployment of location-aware computing inside of buildings. A major challenge is obtaining high...
Provided by University of Victoria
-
White Papers
HEP Specific Benchmarks of Virtual Machines on Multi-Core CPU Architectures
May 14, 2009, 12:00am PDT
Virtualization technologies such as Xen can be used in order to satisfy the disparate and often incompatible system requirements of different user groups in shared-use computing facilities. This...
Provided by University of Victoria
-
White Papers
Hand Held Analog Television Over WiMAX Executed in SW
January 25, 2009, 12:00am PST
This paper describes a device capable of performing the following tasks: it samples and decodes the composite video analog TV signal, it encodes the resulting RGB data into a MPEG-4 stream and...
Provided by University of Victoria
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