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Vrije Universiteit
(99 results)-
White Papers
PuppetCast: A Secure Peer Sampling Protocol
September 29, 2008, 12:00am PDT
PuppetCast is a protocol for secure peer sampling in large-scale distributed systems. A peer sampling protocol continuously provides each node in the system with a uniform random sample of the...
Provided by Vrije Universiteit
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White Papers
Scalable Transactions for Web Applications in the Cloud
May 8, 2009, 12:00am PDT
Cloud computing platforms provide scalability and high availability properties for web applications but they sacrifice data consistency at the same time. However, many applications cannot afford...
Provided by Vrije Universiteit
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White Papers
Cell-ID Positioning in WiMAX Networks Analysis of the Clearwire Network in Belgium
June 8, 2009, 12:00am PDT
Base station identification, or Cell IDentification (Cell-ID) is the first method used by operators to provide Location-Based Services (LBS). The advantage of using this method is the simplicity...
Provided by Vrije Universiteit Brussel
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White Papers
Towards Coordinated Data Management for High-Performance Distributed Multimedia Content Analysis
February 22, 2008, 12:00am PST
In a few years, access to the content of multimedia data will be a problem of phenomenal proportions, as digital cameras may produce high data rates, and multimedia archives steadily run into...
Provided by Vrije Universiteit
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White Papers
Change-Oriented Software Engineering
June 3, 2007, 12:00am PDT
Authors propose a first-class change model for Change-Oriented Software Engineering (COSE). Based on an evolution scenario, authors identify a lack of support in current Interactive Development...
Provided by Vrije Universiteit Brussel
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White Papers
Context-Aware Leasing for Mobile Ad Hoc Networks
June 22, 2007, 12:00am PDT
Distributed memory management is substantially complicated in mobile ad hoc networks due to the fact that nodes in the network only have intermittent connectivity and often lack any kind of...
Provided by Vrije Universiteit Brussel
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White Papers
Group Monitoring in Mobile Ad-Hoc Networks
May 11, 2009, 12:00am PDT
Maintaining bonds of cohesion between members of small groups in densely populated venues (e.g., a family in an amusement park, or some friends in a stadium) is increasingly gaining interest, both...
Provided by Vrije Universiteit
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White Papers
Language-Shifting Objects From Java to Smalltalk
September 11, 2009, 12:00am PDT
Foreign-function interfaces enable programs in a host language to interoperate with programs written in another language and vice-versa. Two languages that feature such an interface to a common...
Provided by Vrije Universiteit Brussel
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White Papers
Decentralized Learning in Wireless Sensor Networks
March 13, 2009, 12:00am PDT
In this paper the authors use a reinforcement learning algorithm with the aim to increase the autonomous lifetime of a Wireless Sensor Network (WSN) and decrease latency in a decentralized manner....
Provided by Vrije Universiteit Brussel
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White Papers
Trishul: A Policy Enforcement Architecture for Java Virtual Machines
June 8, 2008, 12:00am PDT
The standard Java execution environment provides only primitive support for specifying and enforcing access control policies both at the stack and method call level as well as the higher...
Provided by Vrije Universiteit
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White Papers
The Strategic Planning Of EU Military Operations - The Case Of EUFOR TCHAD / RCA
May 1, 2008, 12:00am PDT
This paper cannot hope to cover all issues relevant to crisis management in Chad in detail. It can only briefly introduce the conflict in Chad itself. The role of the United Nations (UN) in...
Provided by Vrije Universiteit Brussel
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White Papers
SweetBait: Zero-Hour Worm Detection and Containment Using Honeypots
January 1, 2011, 12:00am PST
As next-generation computer worms may spread within minutes to millions of hosts, protection via human intervention is no longer an option. The authors discuss the implementation of SweetBait, an...
Provided by Vrije Universiteit
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White Papers
Ibis: A Flexible and Efficient Java-Based Grid Programming Environment
January 1, 2011, 12:00am PST
In computational grids, performance-hungry applications need to simultaneously tap the computational power of multiple, dynamically available sites. The crux of designing grid programming...
Provided by Vrije Universiteit
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White Papers
Protecting Smart Phones by Means of Execution Replication
February 23, 2010, 12:00am PST
Smartphones have come to resemble PCs in software complexity, with complexity usually leading to bugs and vulnerabilities. Moreover, as smartphones are increasingly used for financial transactions...
Provided by Vrije Universiteit
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White Papers
Regulating Knowledge Monopolies: The Case Of The IPCC
September 1, 2010, 12:00am PDT
The Intergovernmental Panel on Climate Change has a monopoly on the provision of climate policy advice at the international level and a strong market position in national policy advice. This may...
Provided by Vrije Universiteit
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White Papers
Designing A Property Tax Without Property Values: Analysis In The Case Of Ireland
September 1, 2010, 12:00am PDT
The authors examine the implications of using hedonic regressions of house values as the basis for property tax assessment in the Republic of Ireland. Ad valorem property taxes are more equitable...
Provided by Vrije Universiteit
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White Papers
Empirical Analysis for Agent System Comprehension and Verification
January 1, 2011, 12:00am PST
Comprehending and verifying agent system behavior is an arduous task when dealing with complex multi-agent systems whose behaviors are sophisticated. This paper presents an approach resulting from...
Provided by Vrije Universiteit Amsterdam
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White Papers
Specification of Adaptive Client-Tailored Product Models
January 1, 2011, 12:00am PST
Traditionally, product models often have a rigid nature, both with respect to the manner in which they are initially tailored to clients, and to the way they are maintained over time. Especially...
Provided by Vrije Universiteit Amsterdam
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White Papers
The Smallville Effect: Social Ties Make Mobile Networks More Secure Against the Node Capture Attack
December 11, 2009, 12:00am PST
Mobile ad hoc networks, due to the unattended nature of the network itself and the dispersed location of nodes, are subject to several unique security issues. One of the most vexed security threat...
Provided by Vrije Universiteit Amsterdam
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White Papers
Privacy, Trust and Policy-Making: Challenges and Responses
January 30, 2009, 12:00am PST
The authors contend that the emerging ubiquitous Information Society (aka ambient intelligence, pervasive computing, ubiquitous networking and so on) will raise many privacy and trust issues that...
Provided by Vrije Universiteit Brussel
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White Papers
A Survey Of Sequential Monte Carlo Methods For Economics And Finance
February 5, 2009, 12:00am PST
This paper serves as an introduction and survey for economists to the field of sequential Monte Carlo methods which are also known as particle filters. Sequential Monte Carlo methods are...
Provided by Vrije Universiteit Amsterdam
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Whitepapers
SweetBait: Zero-Hour Worm Detection and Containment Using Low- and High-Interaction Honeypots
January 1, 2013, 12:00am PST
As next-generation computer worms may spread within minutes to millions of hosts, protection via human intervention is no longer an option. The authors discuss the implementation of SweetBait, an...
Provided by Vrije Universiteit
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Whitepapers
FFPF: Fairly Fast Packet Filters
January 1, 2013, 12:00am PST
FFPF is a network monitoring framework designed for three things: speed (handling high link rates), scalability (ability to handle multiple applications) and flexibility. Multiple applications...
Provided by Vrije Universiteit
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Whitepapers
The Age of Data: Pinpointing Guilty Bytes in Polymorphic Buffer Overflows on Heap or Stack
September 7, 2007, 12:00am PDT
Heap and stack buffer overflows are still among the most common attack vectors in intrusion attempts. In this paper, the authors ask a simple question that is surprisingly difficult to answer:...
Provided by Vrije Universiteit
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White Papers
Does The Investment Opportunities Bias Affect The Investment-Cash Flow Sensitivities Of Unlisted SMEs?
March 23, 2011, 12:00am PDT
Using a panel of 5,999 Small and Medium-sized Belgian Enterprises (SMEs) over the period 2002-2008, the authors identify three measures of investment opportunities suitable for unlisted firms....
Provided by Vrije Universiteit Brussel
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White Papers
Paranoid Android: Zero-Day Protection for Smartphones Using the Cloud
May 30, 2010, 12:00am PDT
Smartphones have come to resemble PCs in software complexity. Moreover, as they are often used for privacy-sensitive tasks, they are becoming attractive targets for attackers. Unfortunately, they...
Provided by Vrije Universiteit Amsterdam
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White Papers
Multi-Tier Intrusion Detection by Means of Replayable Virtual Machines
August 1, 2008, 12:00am PDT
In order to protect the authors' computer systems from attacks, it is useful to be able to replay an attack once it has been detected, so that they may see how the attack works in greater detail....
Provided by Vrije Universiteit Amsterdam
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White Papers
Lifetime Optimization for Wireless Sensor Networks With Correlated Data Gathering
July 19, 2010, 12:00am PDT
The nodes in wireless sensor networks often collect correlated measurements. Not taking into account this information redundancy is detrimental to the network lifetime, since communication is...
Provided by Vrije Universiteit Brussel
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White Papers
A Gossip-Based Distributed News Service for Wireless Mesh Networks
January 1, 2011, 12:00am PST
The prospect of having an easily-deployable, self-configuring network for a relatively low investment has made wireless mesh networks an attractive platform to provide wireless services. With the...
Provided by Vrije Universiteit Amsterdam
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White Papers
Effective Prediction of Job Processing Times in a Large-Scale Grid Environment
January 1, 2011, 12:00am PST
Grid applications that use a considerable number of processors for their computations need effective predictions of the expected computation times on the different nodes. Currently, there are no...
Provided by Vrije Universiteit
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White Papers
Statistical Properties of Task Running Times in a Global-Scale Grid Environment
January 1, 2011, 12:00am PST
Grid computing technology connects globally distributed processors to develop an immense source of computing power, which enables one to run applications in parallel that would take orders of...
Provided by Vrije Universiteit
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White Papers
Consistent Join Queries in Cloud Data Stores
January 31, 2011, 12:00am PST
NoSQL Cloud data stores provide scalability and high availability properties for web applications, but do not support complex queries such as joins. Developers must therefore design their programs...
Provided by Vrije Universiteit
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White Papers
Tales From the Crypt: Fingerprinting Attacks on Encrypted Channels by Way of Retainting
September 7, 2007, 12:00am PDT
Paradoxically, encryption makes it hard to detect, fingerprint and stop exploits. The authors describe Hassle, a honeypot capable of detecting and fingerprinting monomorphic and polymorphic...
Provided by Vrije Universiteit Amsterdam
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White Papers
Computational Contracts
September 30, 2011, 12:00am PDT
Pre/post contracts for higher-order functions, as proposed by Findler and Felleisen and provided in Racket, allow run-time verification and blame assignment of higher-order functions. However...
Provided by Vrije Universiteit Brussel
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White Papers
Automated Translation and Analysis of a ToolBus Script for Auctions
November 19, 2009, 12:00am PST
ToolBus allows to connect tools via a software bus. Programming is done using the scripting language Tscript, which is based on the process algebra ACP. In previous work, the authors presented a...
Provided by Vrije Universiteit Amsterdam
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White Papers
KLIMAX: Pro Ling Memory Write Patterns to Detect Keystroke-Harvesting Malware
June 19, 2011, 12:00am PDT
Privacy-breaching malware is an ever-growing class of malicious applications that attempt to steal confidential data and leak them to third parties. One of the most prominent activities to acquire...
Provided by Vrije Universiteit
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White Papers
Towards Data Mining in Large and Fully Distributed Peer-to-Peer Overlay Networks
January 1, 2008, 12:00am PST
The Internet, which is becoming a more and more dynamic, extremely heterogeneous network has recently became a platform for huge fully distributed peer-to-peer overlay networks containing millions...
Provided by Vrije Universiteit
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White Papers
PipesFS: Fast Linux I/O in the Unix Tradition
July 21, 2008, 12:00am PDT
This paper presents PipesFS, an I/O architecture for Linux 2.6 that increases I/O throughput and adds support for heterogeneous parallel processors by collapsing many I/O interfaces onto one: the...
Provided by Vrije Universiteit
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White Papers
Resolving Model Inconsistencies With Automated Planning
October 28, 2010, 12:00am PDT
Various approaches have been explored to detect and resolve software model inconsistencies in a generic and scalable way. In this position paper, the authors outline their research that aims to...
Provided by Vrije Universiteit Brussel
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White Papers
Modularizing Crosscuts in an e-Commerce Application in Lisp Using HALO
May 29, 2007, 12:00am PDT
Some program concerns cannot be cleanly modularized, and their implementation leads to code that is both hard to understand and maintain. In this paper, the authors consider extending an...
Provided by Vrije Universiteit Brussel
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Whitepapers
The Age of Data: Pinpointing Guilty Bytes in Polymorphic Buffer Overflows on Heap or Stack
September 7, 2007, 12:00am PDT
Heap and stack buffer overflows are still among the most common attack vectors in intrusion attempts. In this paper, the authors ask a simple question that is surprisingly difficult to answer:...
Provided by Vrije Universiteit
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Whitepapers
FFPF: Fairly Fast Packet Filters
January 1, 2013, 12:00am PST
FFPF is a network monitoring framework designed for three things: speed (handling high link rates), scalability (ability to handle multiple applications) and flexibility. Multiple applications...
Provided by Vrije Universiteit
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Whitepapers
SweetBait: Zero-Hour Worm Detection and Containment Using Low- and High-Interaction Honeypots
January 1, 2013, 12:00am PST
As next-generation computer worms may spread within minutes to millions of hosts, protection via human intervention is no longer an option. The authors discuss the implementation of SweetBait, an...
Provided by Vrije Universiteit
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White Papers
Take a Deep Breath: A Stealthy, Resilient and Cost-Effective Botnet Using Skype
April 28, 2010, 12:00am PDT
Skype is one of the most used P2P applications on the Internet: VoIP calls, instant messaging, SMS and other features are provided at a low cost to millions of users. Although Skype is a closed...
Provided by Vrije Universiteit Amsterdam
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White Papers
Live and Trustworthy Forensic Analysis of Commodity Production Systems
June 20, 2010, 12:00am PDT
The authors present HyperSleuth, a framework that leverages the virtualization extensions provided by commodity hardware to securely perform live forensic analysis of potentially compromised...
Provided by Vrije Universiteit Amsterdam
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White Papers
We Crashed, Now What?
September 19, 2010, 12:00am PDT
The authors present an in-depth analysis of the crash-recovery problem and propose a novel approach to recover from otherwise fatal Operating System (OS) crashes. They show how an unconventional,...
Provided by Vrije Universiteit Amsterdam
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White Papers
Volatile Sets: Event-Driven Collections for Mobile Ad-Hoc Applications
June 9, 2011, 12:00am PDT
In mobile peer-to-peer applications, a common pattern is to maintain a collection of remotely-hosted objects. Traditional approaches require programmers to manually track the connectivity state of...
Provided by Vrije Universiteit Brussel
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White Papers
On Botnets That Use DNS for Command and Control
August 19, 2011, 12:00am PDT
The authors discovered and reverse engineered Feederbot, a botnet that uses DNS as carrier for its command and control. Using k-Means clustering and a Euclidean Distance based classifier, they...
Provided by Vrije Universiteit
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White Papers
Howard: A Dynamic Excavator for Reverse Engineering Data Structures
December 7, 2010, 12:00am PST
Even the most advanced reverse engineering techniques and products are weak in recovering data structures in stripped binaries - binaries without symbol tables. Unfortunately, forensics and...
Provided by Vrije Universiteit
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White Papers
Language Engineering for Mobile Software
November 26, 2010, 12:00am PST
Mobile systems offer the possibility of delivering software services that tightly match user needs, thanks to their availability right at the moment and place where they are needed, and their...
Provided by Vrije Universiteit Brussel
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White Papers
Evolution Styles: Change Patterns for Software Evolution
June 26, 2007, 12:00am PDT
Patterns have been proved useful in many problem domains. In the domain of software evolution, only behaviour-preserving patterns (e.g. re-factorings) have ever been proposed. This paper proposes...
Provided by Vrije Universiteit Brussel
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White Papers
A Meta-Model for Expressing First-Class Changes
June 29, 2007, 12:00am PDT
First-class changes were proven to provide useful information about the evolution history of software programs. The subjects of first-class changes are expressed on the building blocks of the...
Provided by Vrije Universiteit Brussel
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White Papers
Managing Software Dependencies Using Design Structure Matrices
November 8, 2007, 12:00am PST
Modularity plays an important role in increasing the evolvability and maintain-ability of software systems. If a system is structured in such a way that the different components are loosely...
Provided by Vrije Universiteit Brussel
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White Papers
DEUCE : Separating Concerns in User Interfaces
May 31, 2007, 12:00am PDT
As current software systems evolve continuously, both the application and its User Interface (UI) have to be adapted. However, UI code is often scattered through and entangled with the application...
Provided by Vrije Universiteit Brussel
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White Papers
AmbientTalk: Object-Oriented Event-Driven Programming in Mobile Ad Hoc Networks
July 31, 2007, 12:00am PDT
In this paper, the authors describe AmbientTalk: a domain-specific language for orchestrating service discovery and composition in mobile ad hoc networks. AmbientTalk is a distributed...
Provided by Vrije Universiteit Brussel
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White Papers
Mirages: Behavioral Intercession in a Mirrorbased Architecture
October 22, 2007, 12:00am PDT
Mirror-based systems are object-oriented reflective architectures built around a set of design principles that lead to reflective APIs which foster a high degree of reusability, loose coupling...
Provided by Vrije Universiteit Brussel
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White Papers
Linguistic Symbiosis Between Actors and Threads
July 31, 2007, 12:00am PDT
The authors describe a linguistic symbiosis between AmbientTalk, a flexible, domain-specific language for writing distributed programs and Java, a conventional object-oriented language. This...
Provided by Vrije Universiteit Brussel
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White Papers
AmbientTalk/2: Object-Oriented Event-Driven Programming in Mobile Ad Hoc Networks
July 12, 2007, 12:00am PDT
The recent progress of wireless networks technologies and mobile hardware technologies has lead to the emergence of a new generation of applications. These applications are deployed on mobile...
Provided by Vrije Universiteit Brussel
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White Papers
Language Support for Leasing in Mobile Ad Hoc Networks
June 22, 2007, 12:00am PDT
In mobile ad hoc networks, distributed programming is substantially complicated by the fact that nodes in the network only have intermittent connectivity and the lack of any centralized...
Provided by Vrije Universiteit Brussel
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White Papers
Verifying the Design of a Cobol System Using Cognac
November 22, 2008, 12:00am PST
A property of large-scale, industrial systems is that they are intended to be used and maintained over a long period of time. In order to keep such large systems maintainable, it is important that...
Provided by Vrije Universiteit Brussel
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White Papers
On the Classification of First-Class Changes
November 19, 2008, 12:00am PST
Feature-Oriented Programming (FOP) is the research domain that targets the encapsulation of software building blocks as features, which better match the specification of requirements. Recently,...
Provided by Vrije Universiteit Brussel
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White Papers
Optimal Interaction Strategies Using Reflection in LTS: A Demonstration
March 10, 2008, 12:00am PDT
The semantics of languages, including the semantic rules which valid programs must obey, erect many interactions among language constructs. When implementing the interactions, the resulting...
Provided by Vrije Universiteit Brussel
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White Papers
Summary of the ThirdWorkshop on Domain-Specific Aspect Languages
May 21, 2008, 12:00am PDT
The tendency to raise the abstraction level in programming languages towards a particular domain is also a major driving force in the research domain of aspect-oriented programming languages. As a...
Provided by Vrije Universiteit Brussel
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White Papers
Modularizing Invasive Aspect Languages
March 7, 2008, 12:00am PST
In domain-specific aspect languages the authors observe that aspects are translated to base code and subsequently require a complex integration into base code while guaranteeing the correctness of...
Provided by Vrije Universiteit Brussel
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White Papers
First-Class Change Objects for Feature Oriented Programming
August 4, 2008, 12:00am PDT
A growing trend in software construction advocates the encapsulation of software building blocks as features which better match the specification of requirements. As a result, programmers find it...
Provided by Vrije Universiteit Brussel
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White Papers
Software Variation by Means of First-Class Change Objects
August 1, 2008, 12:00am PDT
A growing trend in software construction advocates the encapsulation of software building blocks as features which better match the language of requirements. As a result, programmers find it...
Provided by Vrije Universiteit Brussel
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White Papers
Feature-Oriented Programming Based on First-Class Changes
October 7, 2008, 12:00am PDT
A growing trend in software construction advocates the encapsulation of software building blocks as features which better match the specification of requirements. Feature Oriented Programming...
Provided by Vrije Universiteit Brussel
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White Papers
Reflection for the Masses
September 1, 2008, 12:00am PDT
A reflective programming language provides means to render explicit what is typically abstracted away in its language constructs in an on-demand style. In the early 1980's, Brian Smith introduced...
Provided by Vrije Universiteit Brussel
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White Papers
Pitfalls in Aspect Mining
August 4, 2008, 12:00am PDT
The research domain of aspect mining studies the problem of (semi-)automatically identifying potential aspects and crosscutting concerns in a software system, to improve the system's...
Provided by Vrije Universiteit Brussel
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White Papers
Group Communication Abstractions for Distributed Reactive Systems
July 1, 2008, 12:00am PDT
Pervasive computing in mobile ad hoc networks requires that applications react to a plethora of events red by other devices in the mobile ad hoc network. Current context-aware and event-driven...
Provided by Vrije Universiteit Brussel
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White Papers
Experiences in Modularizing Business Rules Into Aspects
June 16, 2008, 12:00am PDT
This paper provides an experience report on the use of aspect-oriented technology as a means to modularize the implementation of business rules in an object-oriented, large scale case study. The...
Provided by Vrije Universiteit Brussel
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White Papers
Example-Based Program Querying
May 14, 2008, 12:00am PDT
Program query languages are an essential component of program analysis and manipulation systems. In each such system, a query identifies the source-code parts of interest by reasoning over a...
Provided by Vrije Universiteit Brussel
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White Papers
Forward Chaining in HALO: An Implementation Strategy for History-Based Logic Pointcuts
June 3, 2008, 12:00am PDT
In aspect-oriented programming, point-cuts are formulated as conditions over the context of dynamic events in the execution of a program. Hybrid point-cut languages also allow this context to come...
Provided by Vrije Universiteit Brussel
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White Papers
Module Superimposition: A Composition Technique for Rule-Based Model Transformation Languages
September 4, 2009, 12:00am PDT
As the application of model transformation becomes increasingly commonplace, the focus is shifting from model transformation languages to the model transformations themselves. The properties of...
Provided by Vrije Universiteit Brussel
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White Papers
TOTAM: Scoped Tuples for the Ambient
May 15, 2009, 12:00am PDT
Coordination of mobile applications posses a number of issues. Devices should be able to communicate with each other without being connected with each other at the same time while maintaining...
Provided by Vrije Universiteit Brussel
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White Papers
A Leasing Model to Deal With Partial Failures in Mobile Ad Hoc Networks
May 11, 2009, 12:00am PDT
In Mobile Ad hoc NETworks (MANETs) many partial failures are the result of temporary network partitions due to the intermittent connectivity of mobile devices. Some of these failures will be...
Provided by Vrije Universiteit Brussel
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White Papers
Adding State and Visibility Control to Traits Using Lexical Nesting
April 6, 2009, 12:00am PDT
Traits are reusable building blocks that can be composed to share methods across unrelated class hierarchies. Original traits are stateless and cannot express visibility control for methods. Two...
Provided by Vrije Universiteit Brussel
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White Papers
Cognac: A Framework for Documenting and Verifying the Design of Cobol Systems
December 15, 2008, 12:00am PST
For any non-trivial software project, architectural drift is a well-known problem. Over time, the design rules and guidelines governing the software project are no longer obeyed, resulting in that...
Provided by Vrije Universiteit Brussel
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White Papers
Improving the Data Locality of Work Stealing
September 13, 2010, 12:00am PDT
Fork/Join parallelism based on work stealing is becoming a widely used approach for parallelizing programs, yielding good and proven performance characteristics, while being relatively convenient...
Provided by Vrije Universiteit Brussel
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White Papers
Verifying the Design of an Outsourced COBOL System With IntensiVE
July 27, 2010, 12:00am PDT
Companies nowadays rely on outsourcing for the implementation of their software. While outsourcing can reduce the actual development costs for a piece of software, it can also reduce a company's...
Provided by Vrije Universiteit Brussel
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