@Article{QuaratiMartRosi:2021:GeOpDa,
               author = "Quarati, Alfonso and Martino, Monica de and Rosim, S{\'e}rgio",
          affiliation = "{Institute for Applied Mathematics and Information Technologies 
                         National Research Council} and {Institute for Applied Mathematics 
                         and Information Technologies National Research Council} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Geospatial Open Data Usage and Metadata Quality",
              journal = "ISPRS International Journal of Geo-Information",
                 year = "2021",
               volume = "10",
               number = "1",
                pages = "e30",
                month = "Jan.",
             keywords = "geospatial open data, datasets usage, metadata quality.",
             abstract = "The Open Government Data portals (OGD), thanks to the presence of 
                         thousands of geo-referenced datasets, containing spatial 
                         information are of extreme interest for any analysis or process 
                         relating to the territory. For this to happen, users must be 
                         enabled to access these datasets and reuse them. An element often 
                         considered as hindering the full dissemination of OGD data is the 
                         quality of their metadata. Starting from an experimental 
                         investigation conducted on over 160,000 geospatial datasets 
                         belonging to six national and international OGD portals, this work 
                         has as its first objective to provide an overview of the usage of 
                         these portals measured in terms of datasets views and downloads. 
                         Furthermore, to assess the possible influence of the quality of 
                         the metadata on the use of geospatial datasets, an assessment of 
                         the metadata for each dataset was carried out, and the correlation 
                         between these two variables was measured. The results obtained 
                         showed a significant underutilization of geospatial datasets and a 
                         generally poor quality of their metadata. In addition, a weak 
                         correlation was found between the use and quality of the metadata, 
                         not such as to assert with certainty that the latter is a 
                         determining factor of the former.",
                  doi = "10.3390/ijgi10010030",
                  url = "http://dx.doi.org/10.3390/ijgi10010030",
                 issn = "2220-9964",
             language = "en",
           targetfile = "quarati_geospatial.pdf",
        urlaccessdate = "20 maio 2024"
}