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Displaying 1-44 out of 44 total
Optimizing user QoE through overlay routing, bandwidth management and dynamic transcoding
Found in: A World of Wireless, Mobile and Multimedia Networks, International Symposium on
By Maarten Wijnants, Wim Lamotte, Bart De Vleeschauwer, Filip De Turck, Bart Dhoedt, Piet Demeester, Peter Lambert, Dieter Van de Walle, Jan De Cock, Stijn Notebaert, Rik Van de Walle
Issue Date:June 2008
pp. 1-7
More and more, multimedia services are being accessed via fixed and mobile networks. These services are typically much more sensitive to packet loss, delay and/or congestion than traditional services. In particular, multimedia data is often time critical a...
 
Dynamic Workflow Instrumentation for Windows Workflow Foundation
Found in: Software Engineering Advances, International Conference on
By Bart J.F. De Smet, Kristof Steurbaut, Sofie Van Hoecke, Filip De Turck, Bart Dhoedt
Issue Date:August 2007
pp. 11
As the complexity of business processes grows, the shift towards workflow-based programming becomes more attractive. The typical long-running characteristic of workflows imposes new challenges such as dynamic adaptation of running workflow instances. Recen...
 
Server Placement Algorithms for the Construction of a QoS Enabled Gaming Infrastructure
Found in: Computers and Communications, IEEE Symposium on
By Bart De Vleeschauwer, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:June 2005
pp. 185-190
With the deployment of broadband Internet access, a new set of applications that is becoming more and more popular are highly interactive services such as online gaming. When the delay experienced in an online game passes a certain threshold, the Quality o...
 
Integrating personal media and Digital TV with QoS guarantees using virtualized set-top boxes: Architecture and performance measurements
Found in: Local Computer Networks, Annual IEEE Conference on
By Vankeirsbilck, Bert Vankeirsbilck, Nelis, Jelle Nelis, Verslype, Dieter Verslype, Develder, Chris Develder, Van Leeuwen, Tom Van Leeuwen, Dhoedt, Bart Dhoedt
Issue Date:October 2010
pp. 488-495
Nowadays, users consume a lot of functionality in their home coming from a service provider located in the Internet. While the home network is typically shielded off as much as possible from the 'outside world', the supplied services could be greatly exten...
 
Spatially Aware Term Selection for Geotagging
Found in: IEEE Transactions on Knowledge and Data Engineering
By Olivier Van Laere,Jonathan Quinn,Steven Schockaert,Bart Dhoedt
Issue Date:January 2014
pp. 221-234
The task of assigning geographic coordinates to textual resources plays an increasingly central role in geographic information retrieval. The ability to select those terms from a given collection that are most indicative of geographic location is of key im...
 
Leveraging Cloudlets for Immersive Collaborative Applications
Found in: IEEE Pervasive Computing
By Tim Verbelen,Pieter Simoens,Filip De Turck,Bart Dhoedt
Issue Date:October 2013
pp. 30-38
Cyber foraging has already proven to be successful for enabling resource-intensive applications on mobile devices. Offloading applications, or parts thereof, to nearby infrastructure--also denoted as cloudlets--can lower execution time and save energy. How...
 
Detecting Places of Interest Using Social Media
Found in: 2012 IEEE/WIC/ACM International Joint Conferences on Web Intelligence (WI) and Intelligent Agent Technologies (IAT)
By Steven Van Canneyt,Steven Schockaert,Olivier Van Laere,Bart Dhoedt
Issue Date:December 2012
pp. 447-451
Place recommender systems are increasingly being used to find places of a given type that are close to a user-specified location. As it is important for these systems to use an up-to-date database with a wide coverage, there is a need for techniques that a...
 
A component-based approach towards mobile distributed and collaborative PTAM
Found in: 2012 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)
By Tim Verbelen,Pieter Simoens,Filip De Turck,Bart Dhoedt
Issue Date:November 2012
pp. 329-330
Having numerous sensors on-board, smartphones have rapidly become a very attractive platform for augmented reality applications. Although the computational resources of mobile devices grow, they still cannot match commonly available desktop hardware, which...
 
Novel Applications Integrate Location and Context Information
Found in: IEEE Pervasive Computing
By Matthias Strobbe,Olivier Van Laere,Femke Ongenae,Samuel Dauwe,Bart Dhoedt,Filip De Turck,Piet Demeester,Kris Luyten
Issue Date:April 2012
pp. 64-73
New applications and services aim to adapt themselves to the user's context and thus require platforms that can collect, distribute, and exchange contextual information. The Context-Aware Service Platform (CASP) can help, as exemplified here in three diffe...
 
Remote Display Solutions for Mobile Cloud Computing
Found in: Computer
By Pieter Simoens,Filip De Turck,Bart Dhoedt,Piet Demeester
Issue Date:August 2011
pp. 46-53
Proposed optimization techniques address the major challenges that varying wireless channel conditions, short battery lifetime, and interaction latency pose for the remote display of cloud applications on mobile devices.
 
Design of a Framework for Automated Service Mashup Creation and Execution Based on Semantic Reasoning
Found in: Internet and Web Applications and Services, International Conference on
By Anna Hristoskova, Bruno Volckaert, Filip De Turck, Bart Dhoedt
Issue Date:May 2010
pp. 149-154
Instead of building self-contained silos, applications are being broken down in independent structures able to offer a scoped service using open communication standards and encoding. Nowadays there is no automatic environment for the construction of new ma...
 
Message Correlation in Web Services Choreographies: A 4-phase Validation Method
Found in: Web Services, European Conference on
By Gregory Van Seghbroeck, Bruno Volckaert, Filip De Turck, Bart Dhoedt
Issue Date:November 2009
pp. 118-125
The majority of large companies are adopting Service Oriented Architectures, mainly to automate their business processes, both centralized and distributed. This paper will focus on distributed business processes. At the moment there are two interesting way...
 
Adaptation Strategies for Performance Failure Avoindance
Found in: Secure System Integration and Reliability Improvement
By Hong Sun, Vincenzo De Florio, Ning Gui, Raf Hens, Bert Vankeirsbilck, Bart Dhoedt, Chris Blondia
Issue Date:July 2009
pp. 337-341
Nowadays, technologies are providing the mobile terminals with much more powerful computational abilities. Such improvement made it possible to run many complex applications on mobile devices. However, many of these new applications are also resources dema...
 
Automated Instantiation and Extraction of Web Service Choreographies
Found in: Internet and Web Applications and Services, International Conference on
By Gregory Van Seghbroeck, Bruno Volckaert, Filip De Turck, Bart Dhoedt
Issue Date:May 2009
pp. 455-461
Service choreographies describe the interactions that take place in a distributed service collaboration without central entity orchestrating these interactions. It is obvious that each partner will execute parts of the choreography to fulfill the global co...
 
Cost-Effective Burst-Over-Circuit-Switching in a Hybrid Optical Network
Found in: Networking and Services, International conference on
By Jens Buysse, Marc De Leenheer, Chris Develder, Bart Dhoedt, Piet Demeester
Issue Date:April 2009
pp. 499-504
All optical switching has been proposed as a candidate to allow high capacity networking in the future. Currently, Optical Circuit Switching has been widely deployed, although this approach is potentially bandwidth-inefficient for small granularity flows a...
 
Automatic WS-BPEL Composition of Medical Support Services in the ICU
Found in: eHealth, Telemedicine, and Social Medicine, International Conference on
By Sofie Van Hoecke, Kristof Steurbaut, Yannick Beheyt, Frederik Debruyne, Bart Dhoedt, Johan Decruyenaere, Filip De Turck
Issue Date:February 2009
pp. 251-256
Since the ICU is an extremely data-intensive environment, automated data processing is needed in the ICU.The Intensive Care Service Platform facilitates the abstraction of relevant information and supports the physicians through medical support services. T...
 
Towards Efficient Service Placement and Server Selection for Large-Scale Deployments
Found in: Advanced International Conference on Telecommunications
By Jeroen Famaey, Tim Wauters, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:June 2008
pp. 13-18
Currently many service providers offer their services using a private and proprietary hard- and software infrastructure. These infrastructures often share many similarities. Hence we believe a generic service delivery architecture, that allows service prov...
 
Adaptive Task Checkpointing and Replication: Toward Efficient Fault-Tolerant Grids
Found in: IEEE Transactions on Parallel and Distributed Systems
By Maria Chtepen, Filip H.A. Claeys, Bart Dhoedt, Filip De Turck, Piet Demeester, Peter A. Vanrolleghem
Issue Date:February 2009
pp. 180-190
A grid is a distributed computational and storage environment often composed of heterogeneous autonomously managed subsystems. As a result, varying resource availability becomes commonplace, often resulting in loss and delay of executing jobs. To ensure go...
 
Interest Based Selection of User Generated Content for Rich Multimedia Services
Found in: Image Analysis for Multimedia Interactive Services, International Workshop on
By Olivier Van Laere, Matthias Strobbe, Samuel Dauwe, Bart Dhoedt, Filip De Turck, Piet Demeester, Orlando Verde, Frank Hülsken
Issue Date:May 2008
pp. 36-40
In view of the overwhelming popularity of user generated content, both in terms of production and consumption, new intelligent services are needed to help users finding the content they need and enhance existing services with suitably selected content. In ...
 
Distributed Service Provisioning Using Stateful Anycast Communications
Found in: Local Computer Networks, Annual IEEE Conference on
By Tim Stevens, Joachim Vermeir, Marc De Leenheer, Chris Develder, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:October 2007
pp. 165-174
Notwithstanding IP anycast?s introduction in Internet standards dates back to 1993 and its more recent adoption in IPv6 standards, its use in production environments is limited to date. This is mainly because native IP anycast lacks routing scalability and...
 
Runtime Deployment Adaptation for Resource Constrained Devices
Found in: International Conference on Pervasive Services
By Raf Hens, Bas Boone, Filip de Turck, Bart Dhoedt
Issue Date:July 2007
pp. 335-340
This paper proposes a solution for the resource constraints of mobile devices. As an alternative for the thin client approach, a hybrid approach is presented, that is able to adapt dynamically to changes in the context in which the mobile application runs....
 
Dynamic Selection of Interactive eHomeCare Services
Found in: International Conference on Pervasive Services
By Sofie van Hoecke, Kristof Taveirne, Filip de Turck, Bart Dhoedt
Issue Date:July 2007
pp. 367-372
Ehomecare services can save money and improve patient care due to increased feelings of well-being at home. However, since not all patients are technical experts and ehome-care services are developed by different vendors, using different languages and data...
 
Web Service Choreography Conformance Verification in M2M Systems through the piX-model
Found in: International Conference on Pervasive Services
By Gregory van Seghbroeck, Filip de Turck, Bart Dhoedt, Piet Demeester
Issue Date:July 2007
pp. 385-390
Over the years the scope and the scale of M2M systems have evolved, mainly because the decreased costs of the infrastructure and the common use of mobile devices such as PDAs and smart phones. These new intelligent devices are capable of hosting interestin...
 
Erlang Reduced Load Model for Optical Burst Switched Grids
Found in: Networking and Services, International conference on
By Marc De Leenheer, Chris Develder, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:June 2007
pp. 117
This paper presents an Erlang reduced load model to analyze Optical Burst Switched Grid networks. The model allows the evaluation of job blocking probabilities, in which blocking occurs in both the transport network and the resources where jobs are process...
 
Deploying Digital Media Libraries in Multi-Service Access Networks
Found in: Multimedia, International Symposium on
By Koert Vlaeminck, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:December 2006
pp. 105-112
A current important trend is the introduction of new services in the access and aggregation network, close to the end user. A major opportunity for such service enabled access networks is providing users with fast and reliable storage, allowing them to tra...
 
Co-operative Proxy Caching Algorithms for Time-Shifted IPTV Services
Found in: EUROMICRO Conference
By T. Wauters, W. Van de Meerssche, F. De Turck, Bart Dhoedt, P. Demeester, T. Van Caenegem, E. Six
Issue Date:September 2006
pp. 379-386
The increasing popularity of multimedia streaming applications introduces new challenges in content distribution networks. Streaming services such as Video on Demand (VoD) or digital television over the Internet (IPTV) are very bandwidth-intensive and cann...
 
Anycast Algorithms Supporting Optical Burst Switched Grid Networks
Found in: Networking and Services, International conference on
By Marc De Leenheer, Farid Farahmand, Kejie Lu, Tao Zhang, Pieter Thysebaert, Bruno Volckaert, Filip De Turck, Bart Dhoedt, Piet Demeester, Jason P. Jue
Issue Date:July 2006
pp. 63
In this paper we consider implementing optical burst switching as a technology for building Grids with computationally intensive requirements. This architecture has been referred to as Grid-over-OBS (GoOBS). First, we briefly describe the proposed layered ...
 
Using Divisible Load Theory to Dimension Optical Transport Networks for Grid Excess Load Handling
Found in: Autonomic and Autonomous Systems and International Conference on Networking and Services, Joint International Conference on
By Pieter Thysebaert, Marc De Leenheer, Bruno Volckaert, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:October 2005
pp. 89
An important aspect of Grid deployment is the allocation and activation of installed network capacity. Due to the data-intensive nature of Grid jobs, it is expected that optical transport networks will play an important role in Grid deployment. As Grids po...
 
Automatic Inclusion of Middleware Performance Attributes into Architectural UML Software Models
Found in: IEEE Transactions on Software Engineering
By Tom Verdickt, Bart Dhoedt, Frank Gielen, Piet Demeester
Issue Date:August 2005
pp. 695-711
Distributed systems often use a form of communication middleware to cope with different forms of heterogeneity, including geographical spreading of the components, different programming languages and platform architectures, etc. The middleware will, of cou...
 
Evaluation of a Monitoring-Based Architecture for Delivery of High Quality Multimedia Content
Found in: Computers and Communications, IEEE Symposium on
By Jan Coppens, Tim Wauters, Filip De Turck, Bart Dhoedt, Piet Demeester
Issue Date:June 2005
pp. 611-616
Currently, a lot of research has been devoted to (i) content distribution, (ii) traffic engineering, (iii) network monitoring and (iv) service enabling platforms. However, the integration of these four individual concepts in a single platform has not yet b...
 
Modelling the performance of CORBA using Layered Queueing Networks
Found in: EUROMICRO Conference
By Tom Verdickt, Bart Dhoedt, Frank Gielen, Piet Demeester
Issue Date:September 2003
pp. 117
One of the typical features of distributed systems is the heterogeneity of its components (e.g. geographical spreading and different platform architectures), leading to interoperability issues. Many of these are handled by generic middleware-based solution...
 
Distributed Replica Placement Algorithms for Peer-to-Peer Content Distribution Networks
Found in: EUROMICRO Conference
By Tim Wauters, Jan Coppens, Thijs Lambrecht, Bart Dhoedt, Piet Demeester
Issue Date:September 2003
pp. 181
Recently there has been an increasing deployment of content distribution networks (CDNs) offering hosting services to Web content providers. CDNs deploy a set of surrogate servers distributed throughout the Internet and replicate provider content across th...
 
Design of a Middleware-Based Cluster Management Platform with Task Management and Migration
Found in: Cluster Computing, IEEE International Conference on
By Filip De Turck, Stefaan Vanhastel, Pieter Thysebaert, Bruno Volckaert, Piet Demeester, Bart Dhoedt
Issue Date:September 2002
pp. 484
In this paper, we address the design and implementation of a generic and scalable platform for efficient management of computational resources. The developed platform is called the Intelligent Agent Platform. Its architecture is based on middleware technol...
 
A platform for dynamic microcell redeployment in massively multiplayer online games
Found in: Proceedings of the 2006 international workshop on Network and operating systems support for digital audio and video (NOSSDAV '06)
By Bart De Vleeschauwer, Bart Dhoedt, Bruno Van Den Bossche, Filip De Turck, Piet Demeester, Stein Desmet, Stijn De Mulder, Tom Verdickt
Issue Date:November 2006
pp. 1-1
As Massively Multiplayer Online Games enjoy a huge popularity and are played by tens of thousands of players simultaneously, an efficient software architecture is needed to cope with the dynamically changing loads at the server side. In this paper we discu...
     
Dynamic microcell assignment for massively multiplayer online gaming
Found in: Proceedings of 4th ACM SIGCOMM workshop on Network and system support for games (NetGames '05)
By Bart De Vleeschauwer, Bart Dhoedt, Bruno Van Den Bossche, Filip De Turck, Piet Demeester, Tom Verdickt
Issue Date:October 2005
pp. 1-7
With the number of players of massively multiplayer online games (MMOG) going beyond the millions, there is a need for an efficient way to manage these huge digital worlds. These virtual environments are dynamic and sudden increases in player density in a ...
     
Towards a component-based platform for industrial AR
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Bart Dhoedt, Pieter Simoens, Tim Verbelen
Issue Date:September 2013
pp. 1467-1470
The roll-out of AR solutions in industrial environments goes beyond technical requirements and involves challenges regarding software deployment, management and maintenance. In this paper we present a lightweight runtime environment for AR applications, us...
     
Using social media to find places of interest: a case study
Found in: Proceedings of the 1st ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information (GEOCROWD '12)
By Bart Dhoedt, Olivier Van Laere, Steven Schockaert, Steven Van Canneyt
Issue Date:November 2012
pp. 2-8
In this paper, we show how the large amount of geographically annotated data in social media can be used to complement existing place databases. After explaining our method, we illustrate how this approach can be used to discover new instances of a given s...
     
Cloudlets: bringing the cloud to the mobile user
Found in: Proceedings of the third ACM workshop on Mobile cloud computing and services (MCS '12)
By Bart Dhoedt, Filip De Turck, Pieter Simoens, Tim Verbelen
Issue Date:June 2012
pp. 29-36
Although mobile devices are gaining more and more capabilities (i.e. CPU power, memory, connectivity, ...), they still fall short to execute complex rich media and data analysis applications. Offloading to the cloud is not always a solution, because of the...
     
AIOLOS: mobile middleware for adaptive offloading
Found in: Proceedings of the Workshop on Posters and Demos Track (PDT '11)
By Bart Dhoedt, Filip De Turck, Pieter Simoens, Tim Verbelen
Issue Date:December 2011
pp. 1-2
As the popularity of smartphones and tablets increases, the mobile platform is becoming a very important target for application developers. Despite recent advances in mobile hardware, most mobile devices still fall short to execute complex multimedia appli...
     
Enriching audio-visual chat with conversation-based image retrieval and display
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Bart Dhoedt, Christof van Nimwegen, Jeroen Vanattenhoven, Matthias Strobbe, Olivier Van Laere
Issue Date:October 2010
pp. 1051-1054
This paper presents the results of a user study carried out to evaluate an application prototype in which an audio-visual chat conversation between two users is augmented by pictures related to the topics of that conversation. The prototype analyses the co...
     
Towards automated georeferencing of Flickr photos
Found in: Proceedings of the 6th Workshop on Geographic Information Retrieval (GIR '10)
By Bart Dhoedt, Olivier Van Laere, Steven Schockaert
Issue Date:February 2010
pp. 1-7
We explore the task of automatically assigning geographic coordinates to photos on Flickr. Using an approach based on k-medoids clustering and Naive Bayes classification, we demonstrate that the task is feasible, although high accuracy can only be expected...
     
Self management of a mobile thin client service
Found in: Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handhelds (MobiHeld '09)
By Bart Dhoedt, Bert Vankeirsbilck, Filip De Turck, Lien Deboosere, Piet Demeester, Pieter Simoens
Issue Date:August 2009
pp. 101-104
Mobile thin client computing is an enabler for the execution of demanding applications from mobile handhelds. In thin client computing, the application is executed on remote servers and the mobile handheld only has to display the graphical updates and send...
     
Hybrid performance modeling approach for network intensive distributed software
Found in: Proceedings of the 6th international workshop on Software and performance (WOSP '07)
By Bart Dhoedt, Filip De Turck, Piet Demeester, Tom Verdickt
Issue Date:February 2007
pp. 189-200
When designing and evaluating software architectures and network facilities for hosting demanding distributed applications, taking performance considerations into account is essential. A key factor in assessing the performance of such a distributed system ...
     
Performance evaluation of a framework to support path changes in IP-based access networks
Found in: Proceedings of the 9th ACM international symposium on Modeling analysis and simulation of wireless and mobile systems (MSWiM '06)
By Bart Dhoedt, Ingrid Moerman, Liesbeth Peters, Piet Demeester
Issue Date:October 2006
pp. 370-374
The increasing use of wireless networks and the popularity of multimedia applications, leads to the need of Quality of Service support in a mobile IP-based environment. In [1], we investigated the reasons for path changes in the access network and we prese...
     
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