4 papers · 1 filter
Towards Integrated and Open COVID-19 Data
Georgios M. Santipantakis, George A. Vouros, Christos Doulkeridis
Motivated by the global unrest related to the COVID-19 pandemic, we present a system prototype for ontology-based, integration of national data published from various countries. CO…
Scalable Distributed Subtrajectory Clustering
Panagiotis Tampakis, Nikos Pelekis, Christos Doulkeridis +1
Trajectory clustering is an important operation of knowledge discovery from mobility data. Especially nowadays, the need for performing advanced analytic operations over massively…
Distributed Subtrajectory Join on Massive Datasets
Panagiotis Tampakis, Christos Doulkeridis, Nikos Pelekis +1
Joining trajectory datasets is a significant operation in mobility data analytics and the cornerstone of various methods that aim to extract knowledge out of them. In the era of Bi…
MaskLink: Efficient Link Discovery for Spatial Relations via Masking Areas
Georgios Santipantakis, Christos Doulkeridis, George A. Vouros +1
In this paper, we study the problem of spatial link discovery (LD), focusing primarily on topological and proximity relations between spatial objects. The problem is timely due to…