TY - JOUR T1 - On-Demand Hypermedia/Mutimedia Service using Pre-Orcestrated Scenarios over the Internet JF - Networking and Information Systems Journal, Hermes Science Publishing, Volume 2, No. 5-6 Y1 - 1999 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - D Moiras A1 - V Ouzounis A1 - A Tatakis AB - In this paper we present a unified approach for delivering hypermedia/multimedia objects over broadband networks. The described service consists of several multimedia servers and a set of functions that intend to present to the end user interactive information in real-time. The hypermedia documents are structured using a hypermedia markup language that keeps information of the spatiotemporal relationships among document’s media components. In order to deal with the variant network behavior, buffering manipulation mechanisms and grading of the transmitted media quality techniques are proposed to smooth presentation and synchronization anomalies. ER - TY - CONF T1 - Implementing spatio-temporal relations for hypermedia presentations using an HTML-like language T2 - Workshop on Internet Programming Languages(in conjunction with 1998 IEEE International Conference on Programming Languages), Chicago, Illinois, USA Y1 - 1998 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - D Moiras A1 - V Ouzounis A1 - A Tatakis AB - Hypermedia is currently the trend in delivering information composed of various forms of media. Up to now most systems lack the ability to present the user with hypermedia information containing various media that have specific spatio-temporal relations. In this paper we propose and describe a model that can describe such kinds of hypermedia presentations. The core of the model is an HTML-like language that supports tags for the description of timing relations between the information objects that compose a hypermedia presentation. JF - Workshop on Internet Programming Languages(in conjunction with 1998 IEEE International Conference on Programming Languages), Chicago, Illinois, USA ER - TY - CONF T1 - An HTML like language supporting time-depended transmission of hypermedia T2 - The Eighth International ACM Hypertext Conference-Hypertext 97, Southampton, UK Y1 - 1997 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - A Tatakis JF - The Eighth International ACM Hypertext Conference-Hypertext 97, Southampton, UK ER - TY - JOUR T1 - Using Multimedia/Hypermedia Tools over Networks for Distance Education and Training JF - Journal of Educational Technology Review - ETR, AACE, No. 7 Y1 - 1997 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - P Lampsas A1 - A Tatakis A1 - S Kontogiannis A1 - D Fotakis AB - The rapid developments in the Information Technology sector as well as the deployment of faster networks brings us to the era of the New Information Technology (NIT). The citizen of the near future must be able to use them else he will be seriously handicapped in his everyday life. Thus NIT becomes part of the educational process while on the other hand offers the tools and the infrastructure for the establishment of the distance education process. The educators are one of the first professions that must learn to use NIT and its tools. Multimedia/hypermedia tools offer solutions to the problems posed by the distance education process. They can be user-friendly and enticing and they can cover most, if not all, the needs of their users. A lot of prototype systems (tools) for distance education have been developed, each offering a number of functions that aid the process of distance education. The rapid growth of World Wide Web is adding another factor that can lead to the wider deployment of distance education systems. Although the value of distance education is unquestionable there is still a lot of work to be done before a wide spread implementation platform emerges. ER - TY - CONF T1 - FINE:Implementation of a Distributed Telematics Environment for Clinical Engineers T2 - 1996 Concurrent Engineering Europe, Cambridge, UK Y1 - 1996 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - A Tatakis A1 - D Fotakis A1 - P Balaouras A1 - L Chadelis A1 - N Palikarakis A1 - R Sandalatzopoulos JF - 1996 Concurrent Engineering Europe, Cambridge, UK ER - TY - CONF T1 - An Interactive Cooperative Teleworking Environment-Tηλεµάθεια ∗ T2 - ED-TELECOM 96, Boston, USA Y1 - 1996 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - P Lampsas A1 - A Tatakis A1 - S Kontogiannis A1 - D Fotakis A1 - K Kyriakou AB -

In this paper we present the design and the implementation of an interactive environment for cooperative teleworking. Telemathea offers tools that support the communication and the teleworking between tutor and trainee, who may reside in remote geographical regions. This environment offers audio communication over the network as well as support for joint editing of text documents and still images. It supports different audio coding techniques so as to adjust to the available bandwidth, and makes use of the RTP protocol in order to facilitate the exchange of audio and, in the future, video packets.

JF - ED-TELECOM 96, Boston, USA ER - TY - CONF T1 - On-Demand Hypermedia/Multimedia Service over Broadband Networks T2 - 5th IEEE International Symposium On High Performance Distributed Computing-HPDC-5, Syracuse, New York, USA Y1 - 1996 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - D Moiras A1 - V Ouzounis A1 - A Tatakis AB - In this paper we present a uni ed approach for de- livering hypermedia/multimedia objects over broadband networks. Documents are stored in various multimedia servers, while the inline data may reside in their own media servers, attached to the multimedia servers. The described service consists of several multimedia servers and a set of functions that intend to present to the end user interactive information in real-time. Users interact with the service requesting multimedia docu- ments on demand. Various media streams are trans- mitted over di erent parallel connections according to their transmission requirements. The hypermedia doc- uments are structured using a hypermedia markup lan- guage that keeps information of the spatiotemporal re- lationships among document's media components. In order to deal with the variant network behavior, bu ering manipulation mechanisms and grading of the transmitted media quality techniques are proposed to smooth presentation and synchronization anomalies. JF - 5th IEEE International Symposium On High Performance Distributed Computing-HPDC-5, Syracuse, New York, USA ER - TY - CONF T1 - HIPPOCRATES: A multimedia tool for distance education T2 - ED-MEDIA 95, Gratz, Austria Y1 - 1995 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - P Lampsas A1 - A Tatakis A1 - D Fotakis A1 - G Papoutsopoulos AB - In this paper we present a software tool for the realisation of the distance education service, that is the conduction of classes through the use of computers. The classes are directed towards personnel in various areas and aim at the retraining and update of the personnel in subjects of special interest in their line of work. The conduction of classes takes place, from and towards, remote regions with the aid of a computer network. Hippocrates is a flexible and easy-to-use application, which permits students, who sit in front of remotely situated workstations, to attend classes or seminars given by a teacher or expert, who can also be located in some remote geographical area. Hippocrates can be thought of as a distributed transparency projector. The teacher can project transparencies on the screens of the students’ workstations and can emphasize or indicate regions of interest on them by using the graphical tools offered by Hippocrates. Immediate results of the use of Hippocrates are the fast updating of the personnel in remote areas and the upgrading of the quality of the services they offer. JF - ED-MEDIA 95, Gratz, Austria ER - TY - CONF T1 - Multilingual Implementations of OSI Applications T2 - 10th International Symposium on Computers and Information Sciences-ISCIS X, Izmir, Turkey Y1 - 1995 A1 - Christos Bouras A1 - Vaggelis Kapoulas A1 - Paul Spirakis A1 - P Lampsas A1 - A Tatakis A1 - S Kontogiannis A1 - D Fotakis AB - In this work the problem of supporting multilingual environments over OSI applications is addressed. Initially a solution based on the idea of using multilingual structures and transcription techniques is presented. Another solution based on the major principles of the former follows, which exploits the coding of all of character sets uniformally. JF - 10th International Symposium on Computers and Information Sciences-ISCIS X, Izmir, Turkey ER -