Andreas Kosmatopoulos

20 papers A 1B 2C 1Journal 9Unranked 6
YearRankTypeTitle / Venue / Authors
2025 — conf
Efficient Multi-Criteria Important Node Identification via Ego-Network Approximation.
SNAMS
Andreas Kosmatopoulos, Taxiarchis Skouras, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2025 J jnl
Enhancing Change Point Detection Through Key Actor Identification: A Study in Cryptocurrency Transactions Networks.
IEEE Access
Ourania Theodosiadou, Andreas Kosmatopoulos, Christos Gkiourtzidis, Taxiarchis Skouras, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2025 J jnl
Storing and Querying Evolving Graphs in NoSQL Storage Models.
CoRR
Alexandros Spitalas, Anastasios Gounaris, Andreas Kosmatopoulos, Kostas Tsichlas
2022 — conf
A Faster Converging Negative Sampling for the Graph Embedding Process in Community Detection and Link Prediction Tasks.
DeLTA
Kostas Loumponias, Andreas Kosmatopoulos, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2022 B conf
Identification of Key Actor Nodes: A Centrality Measure Ranking Aggregation Approach.
ASONAM
Andreas Kosmatopoulos, Kostas Loumponias, Ourania Theodosiadou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2022 — conf
Modified SkipGram Negative Sampling Model for Faster Convergence of Graph Embedding.
DeLTA (Selected Papers)
Kostas Loumponias, Andreas Kosmatopoulos, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2021 J jnl
Dynamic layers of maxima with applications to dominating queries.
Comput. Geom.
Evangelos Kipouridis, Andreas Kosmatopoulos, Apostolos N. Papadopoulos, Kostas Tsichlas
2021 C conf
Investigation of Database Models for Evolving Graphs.
TIME
Alexandros Spitalas, Anastasios Gounaris, Kostas Tsichlas, Andreas Kosmatopoulos
2021 — conf
Random-Walk Graph Embeddings and the Influence of Edge Weighting Strategies in Community Detection Tasks.
OASIS@HT
Andreas Kosmatopoulos, Kostas Loumponias, Despoina Chatzakou, Theodora Tsikrika, Stefanos Vrochidis, Ioannis Kompatsiaris
2021 B conf
Sequence detection in event log files.
EDBT
Ioannis Mavroudopoulos, Theodoros Toliopoulos, Christos Bellas, Andreas Kosmatopoulos, Anastasios Gounaris
2020 J jnl
A Space-Optimal Hidden Surface Removal Algorithm for Iso-Oriented Rectangles.
Int. J. Found. Comput. Sci.
Andreas Kosmatopoulos, Athanasios K. Tsakalidis, Kostas Tsichlas
2020 J jnl
Dynamic planar range skyline queries in log logarithmic expected time.
Inf. Process. Lett.
Katerina Doka, Andreas Kosmatopoulos, Apostolos Papadopoulos, Spyros Sioutas, Kostas Tsichlas, Dimitrios Tsoumakos
2019 J jnl
Hinode: implementing a vertex-centric modelling approach to maintaining historical graph data.
Computing
Andreas Kosmatopoulos, Anastasios Gounaris, Kostas Tsichlas
2019 — —
Management of historical information and preference in massive datasets
Andreas Kosmatopoulos
2017 J jnl
HiNode: an asymptotically space-optimal storage model for historical queries on graphs.
Distributed Parallel Databases
Andreas Kosmatopoulos, Kostas Tsichlas, Anastasios Gounaris, Spyros Sioutas, Evaggelia Pitoura
2017 J jnl
Skyline Queries in O(1) time?
CoRR
Spyros Sioutas, Kostas Tsichlas, Andreas Kosmatopoulos, Apostolos N. Papadopoulos, Dimitrios Tsoumakos, Katerina Doka
2015 — conf
An Overview of Methods for Handling Evolving Graph Sequences.
ALGOCLOUD
Andreas Kosmatopoulos, Kalliopi Giannakopoulou, Apostolos N. Papadopoulos, Kostas Tsichlas
2014 A conf
Dynamic Processing of Dominating Queries with Performance Guarantees.
ICDT
Andreas Kosmatopoulos, Apostolos N. Papadopoulos, Kostas Tsichlas
2013 J jnl
Dynamic Top-$k$ Dominating Queries
CoRR
Andreas Kosmatopoulos, Kostas Tsichlas
2011 — conf
Towards a User-Aware Virtual Museum.
VS-GAMES
Christos Zigkolis, Vassiliki A. Koutsonikola, Despoina Chatzakou, Savvas Karagiannidis, Maria Giatsoglou, Andreas Kosmatopoulos, Athena Vakali