4 papers
Watermarking Digital Images Based on a Content Based Image Retrieval Technique
Dimitrios K. Tsolis, Spyros Sioutas, Theodore S. Papatheodorou
The current work is focusing on the implementation of a robust watermarking algorithm for digital images, which is based on an innovative spread spectrum analysis algorithm for wat…
Design and Implementation Aspects of a novel Java P2P Simulator with GUI
V. Chrissikopoulos, G. Papaloukopoulos, E. Sakkopoulos +1
Peer-to-peer networks consist of thousands or millions of nodes that might join and leave arbitrarily. The evaluation of new protocols in real environments is many times practicall…
Finger Indexed Sets: New Approaches
Spyros Sioutas
In the particular case we have insertions/deletions at the tail of a given set S of one-dimensional elements, we present a simpler and more concrete algorithm than that present…
Canonical polygon Queries on the plane: a New Approach
Spyros Sioutas, Dimitrios Sofotassios, Kostas Tsichlas +2
The polygon retrieval problem on points is the problem of preprocessing a set of points on the plane, so that given a polygon query, the subset of points lying inside it can be…