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Semantic ScholarStavros D. Nikolopoulos
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2010 – today
- 2018
[j51]Maria Chroni, Stavros D. Nikolopoulos, Leonidas Palios:
Encoding watermark numbers as reducible permutation graphs using self-inverting permutations. Discrete Applied Mathematics 250: 145-164 (2018)- [j50]Athanasios L. Konstantinidis, Stavros D. Nikolopoulos, Charis Papadopoulos:
Strong triadic closure in cographs and graphs of low maximum degree. Theor. Comput. Sci. 740: 76-84 (2018) - [i13]Anna Mpanti, Stavros D. Nikolopoulos, Iosif Polenakis:
Malicious Software Detection and Classification utilizing Temporal-Graphs of System-call Group Relations. CoRR abs/1812.10748 (2018) - [i12]Anna Mpanti, Stavros D. Nikolopoulos, Leonidas Palios:
Characterizing Watermark Numbers encoded as Reducible Permutation Graphs against Malicious Attacks. CoRR abs/1812.11080 (2018) - 2017
- [j49]Stavros D. Nikolopoulos, Iosif Polenakis:
Preventing malware pandemics in mobile devices by establishing response-time bounds. J. Inf. Sec. Appl. 37: 1-14 (2017) - [j48]Stavros D. Nikolopoulos, Iosif Polenakis:
A graph-based model for malware detection and classification using system-call groups. J. Computer Virology and Hacking Techniques 13(1): 29-46 (2017) - [c51]Athanasios L. Konstantinidis, Stavros D. Nikolopoulos, Charis Papadopoulos:
Strong Triadic Closure in Cographs and Graphs of Low Maximum Degree. COCOON 2017: 346-358 - [c50]Anna Mpanti, Stavros D. Nikolopoulos, Iosif Polenakis:
Defending Hardware-based Attacks on Trusted Computing using a Hardware-Integrity Attestation Protocol. CompSysTech 2017: 155-162 - [c49]Anna Mpanti, Stavros D. Nikolopoulos, Maria Rini:
Experimental Study of the Resilience of a Graph-based Watermarking System under Edge Modifications. PCI 2017: 34:1-34:6 - [i11]Maria Chroni, Stavros D. Nikolopoulos, Leonidas Palios:
Encoding Watermark Numbers as Reducible Permutation Graphs using Self-inverting Permutations. CoRR abs/1712.08482 (2017) - 2016
- [c48]Stavros D. Nikolopoulos, Iosif Polenakis:
A Model for Establishing Response-time Bounds to Prevent Malware Pandemics in Mobile Devices. CompSysTech 2016: 97-104 - [c47]Anna Mpanti, Stavros D. Nikolopoulos:
Graph-structured Watermarking using Bitonic Sequences of Self-inverting Permutations. PCI 2016: 13 - [i10]Stavros D. Nikolopoulos, Iosif Polenakis:
Preventing Malware Pandemics in Mobile Devices by Establishing Response-time Bounds. CoRR abs/1607.00827 (2016) - [i9]Anna Mpanti, Stavros D. Nikolopoulos:
Two RPG Flow-graphs for Software Watermarking using Bitonic Sequences of Self-inverting Permutations. CoRR abs/1607.02281 (2016) - 2015
- [c46]Stavros D. Nikolopoulos, Iosif Polenakis:
A graph-based model for malicious code detection exploiting dependencies of system-call groups. CompSysTech 2015: 228-235 - [c45]Stavros D. Nikolopoulos, Iosif Polenakis:
Malicious software classification based on relations of system-call groups. Panhellenic Conference on Informatics 2015: 59-60 - [c44]Maria Chroni, Stavros D. Nikolopoulos:
Encoding numbers into reducible permutation graphs using heap-ordered trees. Panhellenic Conference on Informatics 2015: 311-316 - [c43]Maria Chroni, Stavros D. Nikolopoulos:
Watermarking PDF Documents using Various Representations of Self-inverting Permutations. WEBIST 2015: 73-80 - [i8]Maria Chroni, Stavros D. Nikolopoulos:
Watermarking PDF Documents using Various Representations of Self-inverting Permutations. CoRR abs/1501.02686 (2015) - 2014
- [j47]Loukas Georgiadis, Stavros D. Nikolopoulos, Leonidas Palios:
Join-Reachability Problems in Directed Graphs. Theory Comput. Syst. 55(2): 347-379 (2014) - [j46]Stavros D. Nikolopoulos, Leonidas Palios, Charis Papadopoulos:
Counting spanning trees using modular decomposition. Theor. Comput. Sci. 526: 41-57 (2014) - [c42]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
From Image to Audio Watermarking Using Self-Inverting Permutations. WEBIST (1) 2014: 177-184 - [i7]Ioannis Chionis, Maria Chroni, Stavros D. Nikolopoulos:
WaterRPG: A Graph-based Dynamic Watermarking Model for Software Protection. CoRR abs/1403.6658 (2014) - [i6]Stavros D. Nikolopoulos, Iosif Polenakis:
Detecting Malicious Code by Exploiting Dependencies of System-call Groups. CoRR abs/1412.8712 (2014) - 2013
- [j45]Kyriaki Ioannidou, Stavros D. Nikolopoulos:
The Longest Path Problem Is Polynomial on Cocomparability Graphs. Algorithmica 65(1): 177-205 (2013) - [j44]Evaggelos Lappas, Stavros D. Nikolopoulos, Leonidas Palios:
An O(n)-time algorithm for the paired domination problem on permutation graphs. Eur. J. Comb. 34(3): 593-608 (2013) - [c41]Ioannis Chionis, Maria Chroni, Stavros D. Nikolopoulos:
Watermarking Java application programs using the WaterRpg dynamic model. CompSysTech 2013: 291-298 - [c40]Maria Chroni, Stavros D. Nikolopoulos:
Design and Evaluation of a Graph Codec System for Software Watermarking. DATA 2013: 277-284 - [c39]Ioannis Chionis, Maria Chroni, Stavros D. Nikolopoulos:
Evaluating the WaterRpg software watermarking model on Java application programs. Panhellenic Conference on Informatics 2013: 144-151 - [c38]Ioannis Chionis, Maria Chroni, Stavros D. Nikolopoulos:
A Dynamic Watermarking Model for Embedding Reducible Permutation Graphs into Software. SECRYPT 2013: 74-85 - [c37]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
Watermarking Images in the Frequency Domain by Exploiting Self-inverting Permutations. WEBIST 2013: 45-54 - [c36]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
Watermarking Digital Images in the Frequency Domain: Performance and Attack Issues. WEBIST (Selected Papers) 2013: 68-84 - 2012
- [j43]Stavros D. Nikolopoulos, Leonidas Palios, Charis Papadopoulos:
A fully dynamic algorithm for the recognition of P4-sparse graphs. Theor. Comput. Sci. 439: 41-57 (2012) - [j42]Stavros D. Nikolopoulos, Leonidas Palios:
An O(nm)-time certifying algorithm for recognizing HHD-free graphs. Theor. Comput. Sci. 452: 117-131 (2012) - [c35]Maria Chroni, Stavros D. Nikolopoulos:
An Efficient Graph Codec System for Software Watermarking. COMPSAC Workshops 2012: 595-600 - [c34]Maria Chroni, Stavros D. Nikolopoulos:
Multiple encoding of a watermark number into reducible permutation graphs using cotrees. CompSysTech 2012: 118-125 - [c33]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
A Watermarking System for Teaching Students to Respect Intellectual Property Rights. CSEDU (1) 2012: 336-339 - [c32]Maria Chroni, Stavros D. Nikolopoulos:
An Embedding Graph-based Model for Software Watermarking. IIH-MSP 2012: 261-264 - [c31]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
A watermarking system for teaching intellectual property rights: Implementation and performance. ITHET 2012: 1-8 - [c30]Maria Chroni, Angelos Fylakis, Stavros D. Nikolopoulos:
Watermarking Images using 2D Representations of Self-inverting Permutations. WEBIST 2012: 380-385 - 2011
- [j41]Kyriaki Ioannidou, George B. Mertzios, Stavros D. Nikolopoulos:
The Longest Path Problem has a Polynomial Solution on Interval Graphs. Algorithmica 61(2): 320-341 (2011) - [j40]Stavros D. Nikolopoulos, Charis Papadopoulos:
A Simple Linear-Time Recognition Algorithm for Weakly Quasi-Threshold Graphs. Graphs and Combinatorics 27(4): 557-565 (2011) - [c29]Maria Chroni, Stavros D. Nikolopoulos:
Encoding watermark numbers as cographs using self-inverting permutations. CompSysTech 2011: 142-148 - [c28]Loukas Georgiadis, Stavros D. Nikolopoulos, Leonidas Palios:
Join-Reachability Problems in Directed Graphs. CSR 2011: 195-208 - [c27]Stavros D. Nikolopoulos, Leonidas Palios, Charis Papadopoulos:
Counting Spanning Trees in Graphs Using Modular Decomposition. WALCOM 2011: 202-213 - [i5]Maria Chroni, Stavros D. Nikolopoulos:
Efficient Encoding of Watermark Numbers as Reducible Permutation Graphs. CoRR abs/1110.1194 (2011) - 2010
- [j39]Katerina Asdre, Stavros D. Nikolopoulos:
The 1-Fixed-Endpoint Path Cover Problem is Polynomial on Interval Graphs. Algorithmica 58(3): 679-710 (2010) - [j38]Katerina Asdre, Stavros D. Nikolopoulos:
A polynomial solution to the k-fixed-endpoint path cover problem on proper interval graphs. Theor. Comput. Sci. 411(7-9): 967-975 (2010) - [c26]Maria Chroni, Stavros D. Nikolopoulos:
Encoding watermark integers as self-inverting permutations. CompSysTech 2010: 125-130 - [c25]Kyriaki Ioannidou, Stavros D. Nikolopoulos:
Harmonious Coloring on Subclasses of Colinear Graphs. WALCOM 2010: 136-148 - [c24]Kyriaki Ioannidou, Stavros D. Nikolopoulos:
The Longest Path Problem is Polynomial on Cocomparability Graphs. WG 2010: 27-38 - [i4]Loukas Georgiadis, Stavros D. Nikolopoulos, Leonidas Palios:
Join-Reachability Problems in Directed Graphs. CoRR abs/1012.4938 (2010)
2000 – 2009
- 2009
- [j37]Stavros D. Nikolopoulos, Charis Papadopoulos:
Counting Spanning Trees in Cographs: An Algorithmic Approach. Ars Comb. 90 (2009) - [j36]Stavros D. Nikolopoulos, Leonidas Palios, Charis Papadopoulos:
Maximizing the number of spanning trees in Kn-complements of asteroidal graphs. Discrete Mathematics 309(10): 3049-3060 (2009) - [c23]Stavros D. Nikolopoulos, Charis Papadopoulos:
A Simple Linear-Time Recognition Algorithm for Weakly Quasi-Threshold Graphs. CTW 2009: 23-27 - [c22]Evaggelos Lappas, Stavros D. Nikolopoulos, Leonidas Palios:
An O(n)-Time Algorithm for the Paired-Domination Problem on Permutation Graphs. IWOCA 2009: 368-379 - [c21]Kyriaki Ioannidou, George B. Mertzios, Stavros D. Nikolopoulos:
The Longest Path Problem Is Polynomial on Interval Graphs. MFCS 2009: 403-414 - [c20]
- 2008
- [c19]Katerina Asdre, Stavros D. Nikolopoulos:
The 2-Terminal-Set Path Cover Problem and Its Polynomial Solution on Cographs. FAW 2008: 208-220 - [c18]Dimitrios Koukopoulos, Stavros D. Nikolopoulos, Leonidas Palios, Paul G. Spirakis:
Optimal Algorithms for Detecting Network Stability. WALCOM 2008: 188-199 - [i3]Katerina Asdre, Stavros D. Nikolopoulos:
The 1-fixed-endpoint Path Cover Problem is Polynomial on Interval Graph. CoRR abs/0806.4372 (2008) - [i2]Kyriaki Ioannidou, Stavros D. Nikolopoulos:
Linear Coloring and Linear Graphs. CoRR abs/0807.4234 (2008) - 2007
- [j35]Stavros D. Nikolopoulos, Leonidas Palios:
Detecting Holes and Antiholes in Graphs. Algorithmica 47(2): 119-138 (2007) - [j34]Stavros D. Nikolopoulos, Leonidas Palios:
On the parallel computation of the biconnected and strongly connected co-components of graphs. Discrete Applied Mathematics 155(14): 1858-1877 (2007) - [j33]Katerina Asdre, Kyriaki Ioannidou, Stavros D. Nikolopoulos:
The harmonious coloring problem is NP-complete for interval and permutation graphs. Discrete Applied Mathematics 155(17): 2377-2382 (2007) - [j32]Katerina Asdre, Stavros D. Nikolopoulos, Charis Papadopoulos:
An optimal parallel solution for the path cover problem on P4-sparse graphs. J. Parallel Distrib. Comput. 67(1): 63-76 (2007) - [j31]Katerina Asdre, Stavros D. Nikolopoulos:
A linear-time algorithm for the k-fixed-endpoint path cover problem on cographs. Networks 50(4): 231-240 (2007) - [j30]Katerina Asdre, Stavros D. Nikolopoulos:
NP-completeness results for some problems on subclasses of bipartite and chordal graphs. Theor. Comput. Sci. 381(1-3): 248-259 (2007) - [c17]Stavros D. Nikolopoulos, Leonidas Palios:
An O ( nm )-Time Certifying Algorithm for Recognizing HHD-Free Graphs. FAW 2007: 281-292 - [c16]Maria Chroni, Dimitrios Koukopoulos, Stavros D. Nikolopoulos:
An Experimental Study of Stability in Heterogeneous Networks. WEA 2007: 189-202 - 2006
- [j29]Stavros D. Nikolopoulos, Leonidas Palios:
Minimal separators in P4-sparse graphs. Discrete Mathematics 306(3): 381-392 (2006) - [j28]Stavros D. Nikolopoulos, Leonidas Palios:
Recognizing HH-free, HHD-free, and Welsh-Powell Opposition Graphs. Discrete Mathematics & Theoretical Computer Science 8(1): 65-82 (2006) - [j27]Stavros D. Nikolopoulos, Charis Papadopoulos:
On the number of spanning trees of Knm±G graphs. Discrete Mathematics & Theoretical Computer Science 8(1): 235-248 (2006) - [j26]Katerina Asdre, Stavros D. Nikolopoulos:
P-Tree Structures and Event Horizon: Efficient Event-Set Implementations. J. Comput. Sci. Technol. 21(1): 19-26 (2006) - [c15]Dimitrios Koukopoulos, Stavros D. Nikolopoulos:
Heterogenous Networks Can Be Unstable at Arbitrarily Low Injection Rates. CIAC 2006: 93-104 - [c14]Stavros D. Nikolopoulos, Leonidas Palios, Charis Papadopoulos:
A Fully Dynamic Algorithm for the Recognition of P4-Sparse Graphs. WG 2006: 256-268 - 2005
- [j25]Stavros D. Nikolopoulos, Leonidas Palios:
Efficient parallel recognition of cographs. Discrete Applied Mathematics 150(1-3): 182-215 (2005) - [j24]Stavros D. Nikolopoulos, Leonidas Palios:
On the Recognition of Bipolarizable and P4-simplicial Graphs. Discrete Mathematics & Theoretical Computer Science 7(1): 231-254 (2005) - [c13]Paraskevi Fragopoulou, Stavros D. Nikolopoulos, Leonidas Palios:
Multi-source Trees: Algorithms for Minimizing Eccentricity Cost Metrics. ISAAC 2005: 1080-1089 - [c12]Stavros D. Nikolopoulos, Leonidas Palios:
Maximum-Size Subgraphs of P4-Sparse Graphs Admitting a Perfect Matching. Panhellenic Conference on Informatics 2005: 68-79 - [c11]
- [c10]
- [c9]Katerina Asdre, Stavros D. Nikolopoulos:
P-tree structures and event horizon: efficient event-set implementations. Winter Simulation Conference 2005: 2700-2709 - [i1]Stavros D. Nikolopoulos, Charis Papadopoulos:
The Number of Spanning Trees in Kn-complements of Quasi-threshold Graphs. CoRR abs/cs/0502038 (2005) - 2004
- [j23]Stavros D. Nikolopoulos, Leonidas Palios:
Algorithms for P4-Comparability Graph Recognition and Acyclic P4-Transitive Orientation. Algorithmica 39(2): 95-126 (2004) - [j22]Stavros D. Nikolopoulos, Leonidas Palios:
On the Strongly Connected and Biconnected Components of the Complement of Graphs. Electronic Notes in Discrete Mathematics 17: 229-235 (2004) - [j21]Stavros D. Nikolopoulos, Charis Papadopoulos:
The Number of Spanning Trees in K n-Complements of Quasi-Threshold Graphs. Graphs and Combinatorics 20(3): 383-397 (2004) - [j20]Stavros D. Nikolopoulos, Christos Nomikos, Panos Rondogiannis:
A limit characterization for the number of spanning trees of graphs. Inf. Process. Lett. 90(6): 307-313 (2004) - [j19]Stavros D. Nikolopoulos, Leonidas Palios:
Parallel algorithms for P4-comparability graphs. J. Algorithms 51(1): 77-104 (2004) - [j18]Stavros D. Nikolopoulos:
Parallel algorithms for Hamiltonian problems on quasi-threshold graphs. J. Parallel Distrib. Comput. 64(1): 48-67 (2004) - [j17]Ka Wong Chong, Stavros D. Nikolopoulos, Leonidas Palios:
An Optimal Parallel Co-Connectivity Algorithm. Theory Comput. Syst. 37(4): 527-546 (2004) - [j16]Stavros D. Nikolopoulos, Leonidas Palios:
Parallel Algorithms For Recognizing P5-Free And P5-Free Weakly Chordal Graphs. Parallel Processing Letters 14(1): 119-129 (2004) - [c8]Stavros D. Nikolopoulos, Leonidas Palios:
On the Strongly Connected and Biconnected Components of the Complement of Graphs. CTW 2004: 201-206 - [c7]
- [c6]Stavros D. Nikolopoulos, Leonidas Palios:
Recognizing HHD-free and Welsh-Powell Opposition Graphs. WG 2004: 105-116 - 2003
- [j15]Stavros D. Nikolopoulos, Charis Papadopoulos:
Counting Spanning Trees in Cographs. Electronic Notes in Discrete Mathematics 13: 84-92 (2003) - [c5]Stavros D. Nikolopoulos, Leonidas Palios:
Recognizing Bipolarizable and P 4-Simplicial Graphs. WG 2003: 358-369 - 2002
- [j14]Stavros D. Nikolopoulos:
Coloring permutation graphs in parallel. Discrete Applied Mathematics 120(1-3): 165-195 (2002) - [c4]Stavros D. Nikolopoulos, Leonidas Palios:
On the Recognition of P4-Comparability Graphs. WG 2002: 355-366 - 2001
- [j13]Stavros D. Nikolopoulos:
Hamiltonian Cycles in Quasi-threshold Graphs. Electronic Notes in Discrete Mathematics 8: 67 (2001) - [j12]Stavros D. Nikolopoulos:
Optimal Gray-code labeling and recognition algorithms for hypercubes. Inf. Sci. 137(1-4): 189-210 (2001) - [c3]Stavros D. Nikolopoulos, Leonidas Palios:
Recognition and Orientation Algorithms for P4-Comparability Graphs. ISAAC 2001: 320-331 - 2000
- [j11]Stavros D. Nikolopoulos:
Recognizing cographs and threshold graphs through a classification of their edges. Inf. Process. Lett. 74(3-4): 129-139 (2000) - [j10]Stavros D. Nikolopoulos, Charis Papadopoulos:
On the performance of the first-fit coloring algorithm on permutation graphs. Inf. Process. Lett. 75(6): 265-273 (2000)
1990 – 1999
- 1999
- [j9]Stavros D. Nikolopoulos:
Coloring permutation graphs in parallel. Electronic Notes in Discrete Mathematics 3: 146-152 (1999) - [j8]Maria I. Andreou, Stavros D. Nikolopoulos:
NC Coloring Algorithms for Permutation Graphs. Nord. J. Comput. 6(4): 422-445 (1999) - 1998
- [j7]Stavros D. Nikolopoulos, Panos Rondogiannis:
On the Number of Spanning Trees of Multi-Star Related Graphs. Inf. Process. Lett. 65(4): 183-188 (1998) - 1997
- [j6]Stavros D. Nikolopoulos, George Samaras:
Sub-optimal solutions to track detection problem using graph theoretic concepts. Journal of Systems Architecture 42(9-10): 743-760 (1997) - [c2]Stavros D. Nikolopoulos, Andreas Pitsillides, David Tipper:
Addressing Network Survivability Issues by Finding the K-Best Paths through a Trellis Graph. INFOCOM 1997: 370-377 - 1996
- [j5]Stavros D. Nikolopoulos:
Parallel Block-finding Using Distance Matrices. Parallel Algorithms Appl. 9(1-2): 1-13 (1996) - 1995
- [j4]Stavros D. Nikolopoulos:
Constant-Time Parallel Recognition of Split Graphs. Inf. Process. Lett. 54(1): 1-8 (1995) - 1994
- [j3]Stavros D. Nikolopoulos, Stylianos D. Danielopoulos:
Odd-even, compare-exchange parallel sorting. Microprocessing and Microprogramming 40(7): 487-497 (1994) - [j2]Stavros D. Nikolopoulos, Stylianos D. Danielopoulos:
Fast Parallel Algorithms for Finding Cutpoints and Bridges of Undirected Graphs. Parallel Algorithms Appl. 3(1-2): 45-55 (1994) - [c1]Stavros D. Nikolopoulos:
Parallel Recognition and Location Algorithms for Chordal Graphs Using Distance Matrices. CONPAR 1994: 349-358 - 1993
- [j1]Stavros D. Nikolopoulos, Roderick MacLeod:
An experimental analysis of event set algorithms for discrete event simulation. Microprocessing and Microprogramming 36(2): 71-81 (1993)
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