5 papers
Domination and Coverage Problems under Vulnerability Constraints
Ioannis Sigalas, Nikolaos Lazaropoulos, Ioannis Lamprou +2
In various domination and coverage problems, certain vertices or edges should not be dominated/covered and are designated as vulnerable. Motivated by this, we define the -Vertex…
LVSA: Training-Free Sparse Attention for Long Video Diffusion
Gael Glorian, Ioannis Lamprou, Zhen Zhang +2
Dense self-attention is the compute and quality bottleneck of long-video diffusion inference: cost grows quadratically with the sequence length, and beyond the training horizon the…
White-Basilisk: A Hybrid Model for Code Vulnerability Detection
Ioannis Lamprou, Alexander Shevtsov, Ioannis Arapakis +1
The proliferation of software vulnerabilities presents a significant challenge to cybersecurity, necessitating more effective detection methodologies. We introduce White-Basilisk,…
Approximations for Fault-Tolerant Total and Partial Positive Influence Domination
Ioannis Lamprou, Ioannis Sigalas, Ioannis Vaxevanakis +1
In , given a graph , we seek a minimum-size set of nodes , such that every node in has at least one neighbor in . We define…
BotArtist: Generic approach for bot detection in Twitter via semi-automatic machine learning pipeline
Alexander Shevtsov, Despoina Antonakaki, Ioannis Lamprou +2
Twitter, as one of the most popular social networks, provides a platform for communication and online discourse. Unfortunately, it has also become a target for bots and fake accoun…