Modern information systems, and web information systems in particular, are faced with frequent database schema changes, which generate the necessity to manage them and preserve the...
Video document retrieval is now an active part of the domain of multimedia retrieval. However, unlike for other media, the management of a collection of video documents adds the p...
Earthquake phenomena constitute a rich source of information over the years. Typically, the frequency of earthquakes worldwide is one every second. Collecting and querying seismic ...
In this paper, we propose an architecture for adaptive real-time workflow-based collaborative system. Such a system is needed to support real-time communication and sharing of inf...
Nowadays, wearable devices, such as mobile phones, PDAs, etc. gain widespread popularity for communication and data exchange. Consequently, several approaches investigate the prob...
Tasos Kontogiorgis, Dimitrios I. Fotiadis, Apostol...