Challenges for matching spatial data on economic activities from official and alternative sources.
Year: 2017
Type: article
Abstract: 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: English
Topic: Data Quality and Management
Field: Decision Sciences
Domain: Social Sciences
Open Access status: green
OpenAlex ID: W2783877458