• openAccess   Advancing Science with VGI: Reproducibility and Replicability of Recent Studies using VGI 

      Ostermann, Frank; Granell, Carlos Wiley (2017)
      In scientific research, reproducibility and replicability are requirements to ensure the advancement of our body of knowledge. T his holds true also for VGI - related research and studies. However, the characteristics of ...
    • closedAccess   Let’s Talk about k-NN for Indoor Positioning: Myths and Facts in RF-based Fingerprinting 

      Torres-Sospedra, Joaquín; Pendão, Cristiano; Silva, Ivo; Meneses, Filipe; Quezada Gaibor, Darwin; Montoliu Colás, Raul; Crivello, Antonino; Barsocchi, Paolo; Pérez-Navarro, Antoni; Moreira, Adriano Institute of Electrical and Electronics Engineers Inc. (2023-09-25)
      Microsoft proposed RADAR in 2000, the first indoor positioning system based on Wi-Fi fingerprinting. Since then, the indoor research community has worked not only to improve the base estimator but also on finding an optimal ...