4 documents found, page 1 of 1
Beyond Euclidean distance for error measurement in pedestrian indoor location
Mendoza-Silva, Germán Martín; Torres-Sospedra, Joaquín; Potortì, Francesco; Moreira, Adriano; Knauth, Stefan; Berkvens, Rafael; Huerta, JoaquínIndoor positioning systems (IPSs) suffer from a lack of standard evaluation procedures enabling credible com- parisons: this is one of the main challenges hindering their widespread market adoption. Traditionally, accuracy evaluation is based on positioning errors defined as the Euclidean distance between the true positions and the estimated positions. While Euclidean is simple, it ignores obstacles and floor t...
Off-line evaluation of mobile-centric indoor positioning systems: the experienc...
Torres-Sospedra, Joaquín; Jiménez, Antonio R; Moreira, Adriano; Lungenstrass, Tomás; Lu, Wei-Chung; Knauth, Stefan; Mendoza-Silva, Germán MartínThe development of indoor positioning solutions using smartphones is a growing activity with an enormous potential for everyday life and professional applications. The research activities on this topic concentrate on the development of new positioning solutions that are tested in specific environments under their own evaluation metrics. To explore the real positioning quality of smartphone-based solutions and t...
A realistic evaluation of indoor positioning systems based on Wi-Fi fingerprint...
Torres-Sospedra, Joaquín; Moreira, Adriano; Knauth, Stefan; Berkvens, Rafael; Montoliu, Raul; Belmonte, Oscar; Trilles, Sergio; Nicolau, Maria JoãoThis paper presents results from comparing different Wi-Fi fingerprinting algorithms on the same private dataset. The algorithms where realized by independent teams in the frame of the off-site track of the EvAAL-ETRI Indoor Localization Competition which was part of the Sixth International Conference on Indoor Positioning and Indoor Navigation (IPIN 2015). Competitors designed and validated their algorithms ag...
The smartphone-based offline indoor location competition at IPIN 2016: analysis...
Torres-Sospedra, Joaquín; Jiménez, Antonio R.; Knauth, Stefan; Moreira, Adriano; Beer, Yair; Fetzer, Toni; Viet-Cuong Ta; Nicolau, Maria JoãoThis paper presents the analysis and discussion of the off-site localization competition track, which took place during the Seventh International Conference on Indoor Positioning and Indoor Navigation (IPIN 2016). Five international teams proposed different strategies for smartphone-based indoor positioning using the same reference data. The competitors were provided with several smartphone-collected signal dat...