The dataset has been collected by IMIS Hellas S.A. which is a technology oriented company focusing on AIS technology and Public Information Systems. URL: http://www.imishellas.gr/ The dataset has been donated to Infolab (URL: http://infolab.cs.unipi.gr/) for research purposes.

The dataset has been collected by IMIS Hellas S.A. which is a technology oriented company focusing on AIS technology and Public Information Systems. URL: http://www.imishellas.gr/ The dataset has been donated to Infolab (URL: http://infolab.cs.unipi.gr/) for research purposes.

The dataset has been collected by Naval Academy Resarch Lab, France (http://www.irenav.fr) for research purposes.

The dataset has been collected by IMIS Hellas S.A. which is a technology oriented company focusing on AIS technology and Public Information Systems. URL: http://www.imishellas.gr/ The dataset has been donated to Infolab (URL: http://infolab.cs.unipi.gr/) for research purposes.