See below for video of the Dangermond Lecture by Claudia Bauzer-Medeiros.

Thursday, April 27, 2017

Buchanan 1930

3:30–4:45 pm

Reception at 3512 Phelps following the lecture

Claudia Bauzer-Medeiros

Discovering and clearing paths through the world—
The pros and cons of graph databases



Graph Database systems are being increasingly adopted by the data research community for situations in which there is a need to explore ad hoc relationships across data elements. They are also being used, for instance, to help investigate connections in social networks, trophic cascades in species interactions, or the spreading of diseases.

While these systems favor navigation across non-structured data, and the dynamic insertion and deletion of relationships among data elements, they are far from offering the same facilities available from relational databases. In particular, graph database systems suffer from the lack of a consensual data model or standardized storage structures, which in turn result in a wide range of solutions and (non-interoperable) implementations of a given problem. The talk will discuss some of the pros and cons of using such databases in spatial studies, illustrated via real examples involving the Brazilian water network.


Claudia Bauzer Medeiros is a full professor of Computer science at the Institute of Computing (, University of Campinas (Unicamp), Brazil ( She has received Brazilian and international awards for excellence in research, in teaching, and work in fostering the participation of women in computing, including the Change Agent Anita Borg Award, and the award from Google Brazil. She is a Commander of the Brazilian Order of Scientific Merit and a former Distinguished Speaker of the Association of Computing Machinery (ACM). She was awarded a Doctor Honoris Causa by the Universidad Antenor Orrego, Peru and by the University Paris-Dauphine, France.

Her research is centered on the management and analysis of scientific data, to face the challenges posed by large, real world applications. This involves handling distributed and very heterogeneous data sources, at varying scales in space and time, ranging from satellite data to earthbound sensor networks. For the past 25 years, she has coordinated large multi-institutional, multidisciplinary projects in biodiversity, climate change, and in agricultural and environmental planning, involving universities in Brazil, Germany, and France. In 1994, she created the Laboratory of Information Systems at Unicamp (, one of the first research laboratories in Brazil dedicated to solving interdisciplinary problems involving scientific data. From 2003 to 2007 she was the President of the Brazilian Computer Society. Since 1998 she has served as member of permanent scientific evaluation panels in Brazil, both at the national level (CAPES and CNPq) and at the state of Sao Paulo (FAPESP- where she coordinates the eScience program (