01097nas a2200145 4500008004100000245007600041210006900117260002100186520055500207100002100762700001900783700001400802700001600816856011900832 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-algorithms01681nas a2200169 4500008004100000245008600041210006900127300001300196520105200209100002101261700002701282700001701309700001901326700001401345700001701359856013501376 1999 eng d00aA Cooperative Environment for Local Government: An Internet – Intranet Approach0 aCooperative Environment for Local Government An Internet Intrane a 75 - 893 a
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).
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-approach01477nas a2200181 4500008004100000245006600041210006600107260001800173300001500191520086300206100002101069700002701090700001701117700001901134700001401153700001701167856011101184 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-www01225nas a2200181 4500008004100000245009800041210006900139260002000208300001500228520054100243100002100784700002700805700001700832700001900849700001400868700001700882856014400899 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-purposes01831nas a2200241 4500008004100000245010200041210006900143260001900212300001500231520099200246100002101238700001901259700002701278700001901305700001701324700001401341700001801355700001601373700002401389700001801413700001401431856014401445 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