• openAccess   Environment-Aware Regression for Indoor Localization based on WiFi Fingerprinting 

      Mendoza-Silva, Germán Martín; Costa, Ana Cristina; Torres-Sospedra, Joaquín; Painho, Marco; Huerta, Joaquin Institute of Electrical and Electronics Engineers (2021-04-19)
      Data enrichment through interpolation or regression is a common approach to deal with sample collection for Indoor Localization with WiFi fingerprinting. This paper provides guidelines on where to collect WiFi samples, and ...
    • openAccess   Geospatial Analysis of Extreme Weather Events in Nigeria (1985–2015) Using Self-Organizing Maps 

      Akande, Adeoluwa; Costa, Ana Cristina; Mateu, Jorge; Henriques, Roberto (2017)
      The explosion of data in the information age has provided an opportunity to explore the possibility of characterizing the climate patterns using data mining techniques. Nigeria has a unique tropical climate with two ...
    • openAccess   Ranking European capitals by exposure to heat waves and cold waves 

      Smid, M.; Russo, S.; Costa, Ana Cristina; Granell, Carlos; Pebesma, Edzer Elsevier (2019)
      In warming Europe, we are witnessing a growth in urban population with aging trend, which willmake the society more exposed and vulnerable to extreme weather events. In the period1950–2015 the occurrence of extreme heat ...