My general research area is data management, and much of my research concerns aspects of the management of temporal, spatial, and spatio-temporal data, including data modeling, database design, data models and query languages, efficient query and update processing, indexing, and systems architectures.
I am in charge of building up a group in database management and data-intensive systems in the Department of Computer Science, which is part of the Faculty of Science and Technology, one of Aarhus University's faculties.
During the late 1980s and the 1990s, I was at the computer science departments at University of Arizona and University of Maryland for a total of about five years. From September 2008 to August 2009, I was a Visiting Scientist at Google, Mountain View, working in the structured data research group headed by Alon Halevy. In August 2010, I moved to Aarhus University after having been at Aalborg University since 1990.
I am an ACM Fellow (for contributions to temporal and spatio-temporal data management), an IEEE Fellow (for contributions to temporal, spatio-temporal, and mobile data management), a member the Royal Danish Academy of Sciences and Letters, and a member of the Danish Academy of Technical Sciences.
I will speak at MDM 2013 and DBRank 2013.
I was fortunate to receive an award from the Villum Foundation.
IEEE ICDE 2013
I am PC co-chair for ICDE 2013.
Projects: Reduction, Geocrowd
Advisory Boards: iAD, SimpleFleet
Multidimensional Databases and Data Warehousing