Authors:
Davi Oliveira Serrano de Andrade
1
;
Hugo Feitosa de Figueirêdo
2
;
Cláudio de Souza Baptista
1
and
Anselmo Cardoso de Paiva
3
Affiliations:
1
University of Campina Grande, Brazil
;
2
University of Campina Grande, Federal Institute of Education and Science and Technology of Paraíba, Brazil
;
3
Federal University of Maranhão, Brazil
Keyword(s):
Geotag, Photograph Metadata, Geotag Propagation, Digital Photograph Collection.
Related
Ontology
Subjects/Areas/Topics:
Enterprise Information Systems
;
Geographical Information Systems
;
Human-Computer Interaction
;
Multimedia Systems
Abstract:
The integration of GPS in smartphones, tablets and digital cameras becomes more present, resulting in a large
amount of multimedia files. As GPS receivers may not work well indoors, this problem may generate incorrect
locations, very distant from the real location where the picture was taken, or even generate no location at all.
So, to deal with these inconsistencies, this work proposes two novel location propagation techniques. These
techniques were validated through a comparative analysis with two other techniques. Some metrics were used
to validate the techniques: precision, recall and accuracy in the photographs location propagation. The results
prove that the correct choice for location propagation technique depends on the importance of each metric and
on the system user profile. Besides the choice of the correct technique, we also show that the order of the
photographs that will receive the location propagation must be random.