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Stavros D. Nikolopoulos

Researcher at University of Ioannina

Publications -  159
Citations -  1512

Stavros D. Nikolopoulos is an academic researcher from University of Ioannina. The author has contributed to research in topics: Chordal graph & Indifference graph. The author has an hindex of 20, co-authored 148 publications receiving 1377 citations. Previous affiliations of Stavros D. Nikolopoulos include Pierre-and-Marie-Curie University & National and Kapodistrian University of Athens.

Papers
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Book ChapterDOI

Recognizing Bipolarizable and P4-Simplicial Graphs

TL;DR: In this paper, the authors considered the recognition problem of P 4-simplicial graphs and presented algorithms that solve it in O(nm) time, where n and m are the numbers of vertices and of edges of the input graph.
Proceedings ArticleDOI

A Multiple Watermarking Scheme for Digital Audio Signals

TL;DR: In this article , a multiple watermarking scheme for digital audio signals was proposed, which exploits an image as a watermark which has been already watermarked with a self inverting permutation.
Journal ArticleDOI

Adding a Tail in Classes of Perfect Graphs

TL;DR: In this paper , the authors studied the problem of computing the minimum number of non-edges to be added to a given graph to ensure that the resulting graph belongs to a certain class of graphs.
Journal ArticleDOI

Odd-even, compare-exchange parallel sorting

TL;DR: The algorithm is based on the elementary Compare-Exchange operation and has the advantage that it does not require a powerful computational model, uses the least amount of space for the sorting problem, has small constants and can be implemented directly on a sorting network.