6 papers
How Sampling Strategy Affects Imbalance Mitigation in LiDAR Segmentation: A Study of Structured vs. Random Point-Based Architectures
Antonis Savva, Christos Kyrkou, Theocharis Theocharides
Class imbalance in LiDAR point clouds poses challenges for semantic segmentation in autonomous navigation and urban mapping. While 2D vision has numerous mitigation techniques, the…
A Review of Vision-Based Vehicle Detection for UAV-Based Traffic Monitoring: Experimental Insights and Future Directions
Jianlin Ye, Christos Kyrkou
In Intelligent Transportation System (ITS), unmanned aerial vehicle (UAV)-based surveillance offers an innovative solution to traffic surveillance with wide coverage and real-time…
Spin and momentum fraction carried by partons in the nucleon
Constantia Alexandrou, Simone Bacchio, Jacob Finkenrath +6
We determine the momentum fraction and angular momentum carried by quarks and gluons in the proton in lattice QCD. We use four ensembles simulated with up, down, strange and charm…
Loss Landscape Topology Reveals Why Simple Baselines are Competitive at 3D Point Cloud Segmentation Under Class Imbalance
Antonis Savva, Christos Kyrkou, Theocharis Theocharides
Semantic segmentation of 3D point clouds faces severe class imbalance, yet the effectiveness of specialized imbalance-aware methods from 2D computer vision remains unclear in 3D co…
Nucleon unpolarized second Mellin moments using lattice QCD ensembles with physical quark masses and in the continuum limit
Constantia Alexandrou, Simone Bacchio, Jacob Finkenrath +6
We compute the matrix elements of the energy-momentum tensor of the nucleon using four ensembles of twisted mass clover-improved fermions with the up, down, strange and charm quark…
Multiparty Session Types for GDPR Purpose Compliance
Evangelia Vanezi, Dimitrios Kouzapas, Anna Philippou
The General Data Protection Regulation (GDPR) establishes purpose limitation as a fundamental constraint on personal data processing: personal data must be collected, stored, and p…