01109nas a2200145   4500008004100000245007600041210006900117260002100186520055500207100002100762700001900783700001400802700001600816856013100832       2000                        eng d00aThe Performance of Simple Queueing Theoretic Video On Demand Algorithms0 aPerformance of Simple Queueing Theoretic Video On Demand Algorit  c14 - 17 February3 aVideo On Demand (VOD) Systems comprise an
emerging new technology, which is expected to
significantly affect everyday life. The implementation of
effective commercial VOD systems has to overcome some
technical limitations, such as the low bandwidth offered
by the existing communication channels. In our work we
present some simple queuing theoretic algorithms for the
optimal use of a limited number of communication
channels keeping a fair policy for the users requests. We
compare our algorithms with well-known algorithms, by
means of simulation.1 aBouras, Christos1 aGarofalakis, J1 aTzimas, J1 aPetridis, P  uhttp://telematics.upatras.gr/telematics/publications/performance-simple-queueing-theoretic-video-demand-algorithms?language=en01693nas a2200169   4500008004100000245008600041210006900127300001300196520105200209100002101261700002701282700001701309700001901326700001401345700001701359856014701376       1999                        eng d00aA Cooperative Environment for Local Government: An Internet – Intranet Approach0 aCooperative Environment for Local Government An Internet Intrane  a 75 - 893 a<p>In this paper we present a Web-based, database oriented CSCW system to support information dispersal between di€erent Local Government authorities (Region, Prefecture and Municipalities) and the citizens. The system is implemented around the `shared workspace' notion, a group of directories and ®les controlled by the users of the workspace. Intranet and Extranet technologies are exploited to enable asynchronous and synchronous co-operation, manipulation of information from heterogeneous sources, security and easy administration, providing in parallel advanced communication facilities. We propose an innovative approach for the development of shared workspaces over WWW, based on state-of-the-art software platforms, integrating WWW and database technologies. The whole system was developed under a project funded by the Greek General Secretariat of Research and Technology and aims in the ecient distribution and management of information between and within di€erent types of local authorities (Municipalities, Prefectures).</p>
1 aBouras, Christos1 aTriantafillou, Vasilis1 aDestounis, P1 aGarofalakis, J1 aTzimas, J1 aZarafidis, P  uhttp://telematics.upatras.gr/telematics/publications/cooperative-environment-local-government-internet-%E2%80%93-intranet-approach?language=en01489nas a2200181   4500008004100000245006600041210006600107260001800173300001500191520086300206100002101069700002701090700001701117700001901134700001401153700001701167856012301184       1999                        eng d00aCooperative Information Systems over the Internet and the WWW0 aCooperative Information Systems over the Internet and the WWW  c25 - 28 April  a 232 - 2363 aIn this paper we present a WWW-based approach for the
development of a system supporting information sharing
within an organizational environment. The system developed
is exploiting Intranet and Extranet technologies enabling
asynchronous and synchronous cooperation, manipulation of
information from heterogeneous sources, security and easy
administration, providing in parallel advanced communication
facilities. We propose an innovative approach for the
development of shared workspaces over WWW, based on
state-of-the-art software platforms, integrating WWW and
database technologies. The whole system was developed
under a project funded by the Greek General Secretariat of
Research and Technology and aims in the efficient
distribution and management of information between and
within different types of local authorities (Municipalities,
Prefectures).1 aBouras, Christos1 aTriantafillou, Vasilis1 aDestounis, P1 aGarofalakis, J1 aTzimas, J1 aZarafidis, P  uhttp://telematics.upatras.gr/telematics/publications/cooperative-information-systems-over-internet-and-www?language=en01237nas a2200181   4500008004100000245009800041210006900139260002000208300001500228520054100243100002100784700002700805700001700832700001900849700001400868700001700882856015600899       1998                        eng d00aAn Intranet and Internet based Information System for Administration and Information purposes0 aIntranet and Internet based Information System for Administratio  c29 - 30 October  a 211 - 2153 aThis work presents a system developed within a project funded by the Greek Government.
The system deals with the distribution of information and the exchange of documents within,
from and towards (region, municipalities, citizens, various groups etc.) the prefecture of
Corfu. It is exploiting Intranet and Extranet technologies in order to enable asynchronous
and synchronous cooperation, manipulation of information from heterogeneous sources,
security and easy administration, providing in parallel advanced communication facilities.1 aBouras, Christos1 aTriantafillou, Vasilis1 aDestounis, P1 aGarofalakis, J1 aTzimas, J1 aZarafidis, P  uhttp://telematics.upatras.gr/telematics/publications/intranet-and-internet-based-information-system-administration-and-information-purposes?language=en01843nas a2200241   4500008004100000245010200041210006900143260001900212300001500231520099200246100002101238700001901259700002701278700001901305700001701324700001401341700001801355700001601373700002401389700001801413700001401431856015601445       1997                        eng d00aThe Design and Development of Advanced Network Services over the Patras University Campus Network0 aDesign and Development of Advanced Network Services over the Pat  c2 - 6 December  a 420 - 4273 aThis paper presents some results of the initial phases of a big internal
project running at the University of Patras. In this project - which is co-funded by the
European Union - our team is responsible for the development of the Advanced
Network Services over the Campus Network, which is being established during the
project. In the following chapters we first present the general perspective and the
architecture of the integrated system which offers the set of advanced services to the
University community. We then describe in detail the different services (WWW and
Intranet, On-line teletraining, Computer supported cooperative work, and Off-line
teletraining). A key characteristic of the system is the integration of existing
commercial tools, with tools that we are developing for the specific needs of the
foreseen users. It is evident that this system can be considered as a pilot project for
large and demanding user communities, as is the case with the University of Patras.1 aBouras, Christos1 aSpirakis, Paul1 aTriantafillou, Vasilis1 aGarofalakis, J1 aTsaknakis, J1 aTzimas, J1 aTsakalidis, A1 aAntoniou, I1 aKarageorgopoylos, D1 aBasiliadis, B1 aKappos, P  uhttp://telematics.upatras.gr/telematics/publications/design-and-development-advanced-network-services-over-patras-university-campus-network?language=en