Abstract Distributed Denial of Services (DDoS) attacks are among the most encountered
cyber criminal activities in communication networks that can result in considerable financial …

Abstract Voice over Internet Protocol (VoIP) has become increasingly popular among
individuals and business organisations, with millions of users communicating using VoIP …

Abstract Next Generation Networks (NGN) provide multimedia services to a large set of
users by maintaining concurrent sessions for multimedia services using IP multimedia sub …

Mobile Voice over Internet Protocol (mVoIP) applications have gained increasing popularity
in the last few years, with millions of users communicating using such applications (eg …

Protecting sensitive data from theft, exfiltration, and other kinds of abuses by malicious
insiders is a challenging problem. While access control mechanisms cannot always prevent …

The amount of texts available in digital form has dramatically increased, giving rise to the
need of fast text classifiers. The tasks involved can be parallelized and distributed in a grid …

The changes in society such as the shift of business from onsite to online where the
customer is not present in person have made identity crimes easier and more attractive in …

Data represent a key resource for all organizations we may think of. Thus, it is not surprising
that data are the main target of a large variety of attacks. Security vulnerabilities and …

Οι πολυμεσικές υπηρεσίες που παρέχονται μέσω του Διαδικτύου, και συγκεκριμένα αυτές που
αξιοποιούν το πρωτόκολλο SIP για τη διαχείριση της σηματοδοσίας, συνεχίζουν να …

Knowledge is an essential source of competitive advantage in modern society and is
particularly important in the current on-line environment due to increased business …