%0 Conference Proceedings
%4 sid.inpe.br/mtc-m16c/2017/12.01.19.08
%2 sid.inpe.br/mtc-m16c/2017/12.01.19.08.03
%@issn 2179-4820
%T Challenges for matching spatial data on economic activities from official and alternative sources
%D 2017
%A Wenceslau, Rodrigo,
%A Davis-Jr, Clodoveu A.,
%A Smarzaro, Rodrigo,
%@affiliation Universidade Federal de Minas Gerais (UFMG)
%@affiliation Universidade Federal de Minas Gerais (UFMG)
%@affiliation Universidade Federal de Minas Gerais (UFMG)
%E Davis Jr., Clodoveu A. (UFMG),
%E Queiroz, Gilberto R. de (INPE),
%B Simpósio Brasileiro de Geoinformática, 18 (GEOINFO)
%C Salvador
%8 04-06 dez. 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 17-27
%S Anais
%X One of the most interesting challenges for urban geographic applica- tions is the integration of multiple heterogeneous data sources. Given current limitations in the access to official data, in spite of modern Open Governmen- tal Data policies, it is necessary to assess whether unofficial data sources can be used to replace official ones, or used along with them, in a complementary fashion. This work proposes a methodology for matching and comparing offi- cial governmental and alternative data on economic activities in an urban area. Applied to data from Belo Horizonte, Brazil, the proposed approach led to the accurate matching of up to 75% of Google Places entries to official munici- pal tax records in some categories. Results show that alternative data sources on businesses can be more accessible and dynamic than official datasets, espe- cially when such businesses benefit from the online exposure provided by freely accessible Web applications.
%@language pt
%3 3wenceslau.pdf