A Conceptual Model for Analyzing Contribution Patterns in the Context of VGI. - Karl Rehrl; Simon Gröchenig; Hartwig H. Hochmair; Sven Leitinger; Renate Steinmann; Andreas Wagner (Progress in Location-Based Services, 2013)

Estimating Completeness of VGI Datasets by Analyzing Community Activity Over Time Periods. - Simon Gröchenig; Richard Brunauer; Karl Rehrl (AGILE Conf., 2014)

Digging into the history of VGI data-sets: results from a worldwide study on OpenStreetMap mapping activity. - Simon Gröchenig; Richard Brunauer; Karl Rehrl (J. Locat. Based Serv., 2014)

Towards a Qualitative Assessment of Changes in Geographic Vector Datasets. - Karl Rehrl; Richard Brunauer; Simon Gröchenig (AGILE Conf., 2015)

Generation of Meaningful Location References for Referencing Traffic Information to Road Networks Using Qualitative Spatial Concepts. - Karl Rehrl; Richard Brunauer; Simon Gröchenig; Eva Lugstein (LBS, 2016)

A Framework for Data-Centric Analysis of Mapping Activity in the Context of Volunteered Geographic Information. - Karl Rehrl; Simon Gröchenig (ISPRS Int. J. Geo Inf., 2016)

Collecting floating car data with smartphones: results from a field trial in Austria. - Karl Rehrl; Richard Brunauer; Simon Gröchenig (J. Locat. Based Serv., 2016)

Evaluating GPS sampling rates for pedestrian assistant systems. - Cornelia Schneider; Sebastian Zutz; Karl Rehrl; Richard Brunauer; Simon Gröchenig (J. Locat. Based Serv., 2016)

A Framework for Evaluating Stay Detection Approaches. - Cornelia Schneider; Simon Gröchenig; Verena Venek; Michael Leitner; Siegfried Reich (ISPRS Int. J. Geo Inf., 2017)

Optimization and Evaluation of a High-Performance Open-Source Map-Matching Implementation. - Karl Rehrl; Simon Gröchenig; Michael H. Wimmer (AGILE Conf., 2018)

Why did a vehicle stop? A methodology for detection and classification of stops in vehicle trajectories. - Karl Rehrl; Simon Gröchenig; Stefan Kranzinger (Int. J. Geogr. Inf. Sci., 2020)

Evaluating Localization Accuracy of Automated Driving Systems. - Karl Rehrl; Simon Gröchenig (Sensors, 2021)

Which quality is a route? A methodology for assessing route quality using spatio-temporal metrics. - Karl Rehrl; Stefan Kranzinger; Simon Gröchenig (Trans. GIS, 2021)

Towards a standardized workflow for creating high-definition maps for highly automated shuttles. - Karl Rehrl; Simon Gröchenig; Thomas Piribauer; Roland Spielhofer; Patrick Weissensteiner (J. Locat. Based Serv., 2022)