I'm a Professor in the Systems and Computing Department at the Federal University of Campina Grande (UFCG/Brazil). I gained a Ph.D. from the School of Computing at the University of Leeds (United Kingdom). I hold M.Sc. and a B.Sc. degrees from the Systems and Computing Department at UFCG. My research interests include topics in data modelling, knowledge representation, information retrieval, text mining and natural language processing. I'm particularly interested in spatial and spatio-temporal information: spatial and temporal language, Geographic Information Retrieval (GIR), modelling geospatial semantics; quality and interoperability of geographic information, spatial aspects of social networks, Volunteered Geographic Information (VGI), and trajectory analysis.