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Program
Final Program [PDF]
Talks details
Mashups and Software as a Service
–
Boualem Benatallah [PDF]
Integration is a key technique in software engineering, which aims to
bring together disparate components and systems to form new, value-adding
applications. In this context, web mashups and software/platform/infrastructure
as a service are novel, innovative paradigms and forms of integration that are
fascinating a rapidly growing number of researchers and practitioners. Yet, the
exact meaning and scope of those terms, the technological challenges underlying
these paradigms, as well as the research and business opportunities they bring
are still vague and sometimes hard to grasp. This talk aims at clarifying these
paradigms, at discussing the relationships that exist among them, and also at
outlining the challenges and potentials they bring.
How to
decentralize Desktop Grid middlewares, lessons learnt and future works
– Christophe Cérin
[PDF]
In this talk, we explore the opportunities and the techniques used by our groups
in order to decentralize Desktop Grid (DK) middlewares. DK middlewares, such as
Boinc, Condor, XtremWeb are now very popular and quite mature (more than 10
years of history). However, architectures are often centralized in the sense
that a single node (namely, the coordinator) is responsible for all the
important services. Our vision considers the possibility to coordinate multiple
instances of Condor, Boinc, Xtremweb DK
middlewares, running concurrently in a single institution. Our middleware is
named BonjourGrid and it is based on Bonjour, the Apple protocol based on
publish and subscribe systems. The second view to decentralize services is to
use Peer-to-peer systems, and in our case the Pastry system. We introduce the
architecture of our PastryGrid middleware and its central element: the notion of
Rendez-vous which is decided in a dynamic way. In this talk, we also discuss
views from colleagues aiming at coupling the emerging cloud computing paradigms
with volunteer PCGrids. The talk will focus on the big-picture challenges needed
to realize effective DK middlewares, and possible solutions to challenging
problems, including fault tolerance, results certification and progress we have
to make within our research groups. This presentation is based on a joint work
between LIPN (Paris) and UTIC-ESSTT (Tunis) laboratories.
Machine
Learning for Search
–
Thomas
Hofmann [PDF]
High quality information retrieval and search engines require some degree of
built-in intelligence to deal with uncertainity and vagueness. Machine learning
and statistical methods are a key technology to accomplish this by harvesting
large volumes of data. The talk will provide a brief introduction to statistical
techniques for supervised (perceptron, SVM) as well as unsupervised
classification and discuss applications for document categorization, concept-based
indexing, collaborative filtering, and result ranking.
SOA Analysis and Design Considerations
– Mike Papazoglou
[Canceled]
SOA is not simply about deploying software it also requires that organizations
evaluate their business models, come up with service-oriented analysis and
design techniques, deployment and support
plans, and carefully evaluate partner/customer/supplier relationships. Since SOA
is based on open standards and is frequently realized using
Web services, developing meaningful services and business process specifications
is an important requirement for SOA applications that
leverage Web services. A sound development methodology is required for this
purpose.
Cloud Computing
–
Stefan Tai
[PDF]
Building on compute and storage virtualization, Cloud Computing provides
scalable, network-centric, abstracted IT infrastructure, platforms, and
applications as on-demand services that are billed by consumption. Cloud Service
Engineering leverages Cloud Computing in the context of the Internet in its
combined role as a platform for technical, economic, organizational and social
networks.This lecture introduces fundamentals of Cloud Computing and Cloud
Service Engineering, providing an overview of state-of-the-art in research and
practice.
Trends in Middleware for Ubiquitous Computing: WComp Solution
– Jean-Yves Tigli
[PDF]
Today mobility of users and an increasing heterogeneity of devices introduce a
new significant challenge for Middleware for ubiquitous computing. We witness to
a kind of inversion in the classical software methodology where the software
applications levels are much more stable and stationary than the software
infrastructure level. The operational environment is then tightly connected with
the real world but is also partly unknown at design time and is always changing
at runtime in uncountable manner.
Building on experience from work on service continuity for mobile workers in the
French National research project CONTINUUM (continuum.unice.fr), the speaker
will postulate that we are moving towards an era of emergent middleware that is
middleware that emerges at run-time to match the current operational environment
and application requirements.
The first part of this talk will conclude with identifying a set of requirements,
trends, open issues associated with middleware for ubiquitous computing in a
dynamic real world. In the second part of this talk, the speaker will present a
new middleware for ubiquitous computing, called WComp, based on services for
devices and three models for local composition (LCA), distributed composition (SLCA)
and reactive adaptation (AA) using Aspects. Demonstrations on the platform WComp
shall illustrate the various stages of this talk.
Tutorial :
Grid
Service Development
–
Kay
Dörnemann
[PDF1,
PDF2]
The Distributed System Group of Marburg University, represented by Kay Dörnemann
and Roland Schwarzkopf, will present their Grid Development Tools (GDT). GDT is
a bundle of Eclipse Plugins useful for service and application development,
workflow creation, and Grid management in the Eclipse Integrated Development
Environment and which is a part of the Marburg Ad-hoc Grid Environment (MAGE).
GDT is divided into the GDT Service Generator, the Visual Grid Orchestrator (ViGO) and the partly standalone tools for Grid Management, Development and other Grid related tools, such as the not yet released Grid Browser. As tutorial, the Service Generator and ViGO will be presented by slides and a live demo. The Service Generator is responsible for creating and maintaining the entire Grid middleware specific code base of the service implementation, leaving the application developer free to concentrate on the application logic. Transformation of application code into Grid services will be supported by the use of annotations. The Visual Grid Orchestrator (ViGO) provides support for graphical modelling of Grid applications from individual Grid services as the component building blocks. The execution of composed Grid applications is done by the BPEL4Grid Engine.
Tutorial : Web Service Developement
–
Benjamin
Schmeling
[PDF]
In this talk you will learn how to develop and deploy a Web Service using open
source tools and how to write a client for it. Further, you will learn how to
enhance the web service with WS-* functionality such as security, etc. Further,
the web service composition language WS-BPEL will be presented and you will see
how to write a BPEL process and deploy it on an open-source BPEL engine. The
composite service will be tested and the message exchange will be monitored.