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Gerasimos Marketos

Researcher at University of Piraeus

Publications -  20
Citations -  518

Gerasimos Marketos is an academic researcher from University of Piraeus. The author has contributed to research in topics: Data warehouse & Online analytical processing. The author has an hindex of 10, co-authored 20 publications receiving 497 citations. Previous affiliations of Gerasimos Marketos include Hellenic Open University.

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Proceedings ArticleDOI

Similarity Search in Trajectory Databases

TL;DR: This paper introduces a framework consisting of a set of distance operators based on primitive as well as derived parameters of trajectories (speed and direction) to support trajectory clustering and classification mining tasks, which definitely imply a way to quantify the distance between two trajectories.
Proceedings ArticleDOI

Building real-world trajectory warehouses

TL;DR: This work investigates how the traditional data cube model is adapted to trajectory warehouses in order to transform raw location data into valuable information.
Journal ArticleDOI

Visually exploring movement data via similarity-based analysis

TL;DR: This paper proposes a framework that provides several trajectory similarity measures, based on primitive as well as on derived parameters of trajectories (speed, acceleration, and direction), which quantify the distance between two trajectories and can be exploited for trajectory data mining, including clustering and classification.
Proceedings ArticleDOI

T-Warehouse: Visual OLAP analysis on trajectory data

TL;DR: This work demonstrates a framework that transforms the traditional data cube model into a trajectory warehouse, T-WAREHOUSE, a system that incorporates all the required steps for Visual Trajectory Data Warehousing, from trajectory reconstruction and ETL processing to Visual OLAP analysis on mobility data.
Proceedings ArticleDOI

Mining Trajectory Databases via a Suite of Distance Operators

TL;DR: A novel set of trajectory distance operators based on primitive as well as derived parameters of trajectories (speed and direction) is defined, aimed at providing a powerful toolkit for analysts who require producing distance matrices with different semantics as input to mining tasks.