8 citations · 20 across the 10 of their papers we have counts for
10 papers
Federated Learning and Trajectory Compression for Enhanced AIS Coverage
Thomas Gräupl, Andreas Reisenbauer, Marcel Hecko +6
This paper presents the VesselEdge system, which leverages federated learning and bandwidth-constrained trajectory compression to enhance maritime situational awareness by extendin…
Building a Foundation Model for Trajectory from Scratch
Gaspard Merten, Mahmoud Sakr, Gilles Dejaegere
Foundation models are transformative in artificial intelligence, but building them from scratch, especially for mobility trajectories, is not yet clear or documented. This tutorial…
An experimental study of existing tools for outlier detection and cleaning in trajectories
Mariana M Garcez Duarte, Mahmoud Sakr
Outlier detection and cleaning are essential steps in data preprocessing to ensure the integrity and validity of data analyses. This paper focuses on outlier points within individu…
Mobility Stream Processing on NebulaStream and MEOS
Mariana M. Garcez Duarte, Dwi P. A. Nugroho, Georges Tod +7
The increasing use of Internet-of-Things (IoT) sensors in moving objects has resulted in vast amounts of spatiotemporal streaming data. To analyze this data in situ, real-time spat…
GeoPandas-AI: A Smart Class Bringing LLM as Stateful AI Code Assistant
Gaspard Merten, Gilles Dejaegere, Mahmoud Sakr
Geospatial data analysis plays a crucial role in tackling intricate societal challenges such as urban planning and climate modeling. However, employing tools like GeoPandas, a prom…
Using LLMs for Analyzing AIS Data
Gaspard Merten, Gilles Dejaegere, Mahmoud Sakr
Recent research in Large Language Models (LLMs), has had a profound impact across various fields, including mobility data science. This paper explores the and experiment with diffe…
Multi-Entry Generalized Search Trees for Indexing Trajectories
Maxime Schoemans, Walid G. Aref, Esteban Zimányi +1
The idea of generalized indices is one of the success stories of database systems research. It has found its way to implementation in common database systems. GiST (Generalized Sea…
New algorithms for the simplification of multiple trajectories under bandwidth constraints
Gilles Dejaegere, Mahmoud Sakr
This study introduces time-windowed variations of three established trajectory simplification algorithms. These new algorithms are specifically designed to be used in contexts with…
Towards Mobility Data Science (Vision Paper)
Mohamed Mokbel, Mahmoud Sakr, Li Xiong +45
Mobility data captures the locations of moving objects such as humans, animals, and cars. With the availability of GPS-equipped mobile devices and other inexpensive location-tracki…
Selectivity Estimation of Inequality Joins In Databases
Diogo Repas, Zhicheng Luo, Maxime Schoemans +1
Selectivity estimation refers to the ability of the SQL query optimizer to estimate the size of the results of a predicate in the query. It is the main calculation, based on which…