Rolf A. de By

According to our database, Rolf A. de By authored at least 42 papers between 1991 and 2022.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2022

Utilization of Internet of Things and Wireless Sensor Networks for Sustainable Smallholder Agriculture.

Amsale Zelalem Bayih, Javier Morales, Yaregal Assabie, Rolf A. de By

Sensors, 2022

2021

Combining favorability modeling with collaborative geo-visual analysis to improve agricultural pest management.

Gustavo Adolfo García-Chapeton, Albertus G. Toxopeus, Jesús Olivero, Frank O. Ostermann, Rolf A. de By

Trans. GIS, 2021

2019

Location Privacy in the Wake of the GDPR.

Yola Georgiadou, Rolf A. de By, Ourania Kounadi

ISPRS Int. J. Geo Inf., 2019

Towards Automated Delineation of Smallholder Farm Fields From VHR Images Using Convolutional Networks.

Claudio Persello, Valentyn A. Tolpekin, John Ray Bergado, Rolf A. de By

Proceedings of the 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019

2018

Enabling collaborative GeoVisual analytics: Systems, techniques, and research challenges.

Gustavo Adolfo García-Chapeton, Frank O. Ostermann, Rolf A. de By, Menno-Jan Kraak

Trans. GIS, 2018

A Cloud-Based Multi-Temporal Ensemble Classifier to Map Smallholder Farming Systems.

Rosa Aguilar, Raúl Zurita-Milla, Emma Izquierdo-Verdiguier, Rolf A. de By

Remote. Sens., 2018

2017

A Workflow for Automated Satellite Image Processing: from Raw VHSR Data to Object-Based Spectral Information for Smallholder Agriculture.

Dimitris Stratoulias, Valentyn A. Tolpekin, Rolf A. de By, Raúl Zurita-Milla, Vasilios Retsios, Wietske Bijker, Mohammad Alfi Hasan, Eric F. Vermote

Remote. Sens., 2017

Identifying crops in smallholder farms using time series of WorldView-2 images.

Raúl Zurita-Milla, Emma Izquierdo-Verdiguier, Rolf A. de By

Proceedings of the 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images, 2017

On the use of guided regularized random forests to identify crops in smallholder farm fields.

Emma Izquierdo-Verdiguier, Raúl Zurita-Milla, Rolf A. de By

Proceedings of the 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images, 2017

2016

Spatiotemporal Information Extraction from a Historic Expedition Gazetteer.

Mafkereseb Kassahun Bekele, Rolf A. de By, Gaurav Singh

ISPRS Int. J. Geo Inf., 2016

Automated semantic trajectory annotation with indoor point-of-interest visits in urban areas.

Victor de Graaff, Rolf A. de By, Maurice van Keulen

Proceedings of the 31st Annual ACM Symposium on Applied Computing, 2016

2015

Spatial Extent Models for Natural Language Phrases Involving Directional Containment.

Gaurav Singh, Rolf A. de By

Trans. GIS, 2015

Spatiotemporal Behavior Profiling: A Treasure Hunt Case Study.

Victor de Graaff, Dieter Pfoser, Maurice van Keulen, Rolf A. de By

Proceedings of the Web and Wireless Geographical Information Systems, 2015

Generic knowledge-based Analysis of Social Media for Recommendations.

Victor de Graaff, Anne van de Venis, Maurice van Keulen, Rolf A. de By

Proceedings of the 2nd Workshop on New Trends on Content-Based Recommender Systems co-located with 9th ACM Conference on Recommender Systems (RecSys 2015), 2015

2014

A geo-information system approach for forest fire likelihood based on causative and anti-causative factors.

Sanjay K. Srivastava, Sameer Saran, Rolf A. de By, V. K. Dadhwal

Int. J. Geogr. Inf. Sci., 2014

Cyber-applications as gateway to data-rich Digital Earth systems.

Javier Morales, Rolf A. de By

Int. J. Digit. Earth, 2014

Digital earth applications in the twenty-first century.

Rolf A. de By, Yola Georgiadou

Int. J. Digit. Earth, 2014

2013

Point of interest to region of interest conversion.

Victor de Graaff, Rolf A. de By, Maurice van Keulen, Jan Flokstra

Proceedings of the 21st SIGSPATIAL International Conference on Advances in Geographic Information Systems, 2013

2012

Towards geosocial recommender systems.

Victor de Graaff, Maurice van Keulen, Rolf A. de By

Proceedings of the International Workshop on Web Intelligence & Communities, 2012

Concepts, Compass and Computation: Models for Directional Part-Whole Relationships.

Gaurav Singh, Rolf A. de By, Ivana Ivánová

Proceedings of the Computational Science and Its Applications - ICCSA 2012, 2012

Models for half-direction based part-whole relationships.

Gaurav Singh, Rolf A. de By

Proceedings of the 3rd ACM SIGSPATIAL International Workshop on GeoStreaming, 2012

Models for professional cyclic activities in VGI with a case in coffee farming.

Clarisse Kagoyire, Rolf A. de By

Proceedings of the First ACM SIGSPATIAL International Workshop on Crowdsourced and Volunteered Geographic Information 2012, 2012

2009

A skeleton design theory for spatial data infrastructure.

Rolf A. de By, Rob Lemmens, Javier Morales

Earth Sci. Informatics, 2009

2007

Enhancing Geo-Service Chaining through Deep Service Descriptions.

Rob Lemmens, Rolf A. de By, Michael Gould, Andreas Wytzisk, Carlos Granell, Peter van Oosterom

Trans. GIS, 2007

A system of types and operators for handling vague spatial objects.

Arta Dilo, Rolf A. de By, Alfred Stein

Int. J. Geogr. Inf. Sci., 2007

Metrics for Vague Spatial Objects Based on the Concept of Mass.

Arta Dilo, Rolf A. de By, Alfred Stein

Proceedings of the FUZZ-IEEE 2007, 2007

2006

Integrating Semantic and Syntactic Descriptions to Chain Geographic Services.

Rob Lemmens, Andreas Wytzisk, Rolf A. de By, Carlos Granell, Michael Gould, Peter van Oosterom

IEEE Internet Comput., 2006

2004

Spatiotemporal Compression Techniques for Moving Point Objects.

Nirvana Meratnia, Rolf A. de By

Proceedings of the Advances in Database Technology, 2004

Storing and Handling Vague Spatial Objects.

Arta Dilo, Pawalai Kraipeerapun, Wim H. Bakker, Rolf A. de By

Proceedings of the 15th International Workshop on Database and Expert Systems Applications (DEXA 2004), with CD-ROM, 30 August, 2004

2003

Trajectory representation in location-based services: problems & solution.

Nirvana Meratnia, Rolf A. de By

Proceedings of the 4th International Conference on Web Information Systems Engineering Workshops, 2003

2002

Aggregation and comparison of trajectories.

Nirvana Meratnia, Rolf A. de By

Proceedings of the ACM-GIS 2002, 2002

1997

Integrating Organisational and Transactional Aspects of Cooperative Activities.

Frans J. Faase, Susan J. Even, Rolf A. de By, Peter M. G. Apers

Proceedings of the Database Programming Languages, 6th International Workshop, 1997

1996

Language Features for Cooperation in an Object-Oriented Database Environment.

Susan J. Even, Frans J. Faase, Rolf A. de By

Int. J. Cooperative Inf. Syst., 1996

Translating OSQL-Queries into Efficient Set Expressions.

Hennie J. Steenhagen, Rolf A. de By, Henk M. Blanken

Proceedings of the Advances in Database Technology, 1996

1995

Functionally Specified Distributed Transactions in Co-operative Scenarios.

Rolf A. de By, Susan J. Even, Peter A. C. Verkoulen

Proceedings of the Proceedings RIDE-DOM '95, Fifth International Workshop on Research Issues in Data Engineering, 1995

A Framework for Representation, Validation and Implementation of Databases Application Semantics.

Maurice van Keulen, Jacek Skowronek, Peter M. G. Apers, Herman Balsters, Henk M. Blanken, Rolf A. de By, Jan Flokstra

Proceedings of the Database Applications Semantics, Proceedings of the Sixth IFIP TC-2 Working Conference on Data Semantics (DS-6), Stone Mountain, Atlanta, Georgia, USA, May 30, 1995

1994

Integrity Control in Advanced Database Systems.

Paul W. P. J. Grefen, Rolf A. de By, Peter M. G. Apers

IEEE Data Eng. Bull., 1994

From Nested-Loop to Join Queries in OODB.

Hennie J. Steenhagen, Peter M. G. Apers, Henk M. Blanken, Rolf A. de By

Proceedings of the VLDB'94, 1994

A Database Interface for Complex Objects.

Marcel Holsheimer, Rolf A. de By, Hassan Aït-Kaci

Proceedings of the Logic Programming, 1994

A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue.

Paul W. P. J. Grefen, Rolf A. de By

Proceedings of the Tenth International Conference on Data Engineering, 1994

1993

Typed Sets as a Basis for Object-Oriented Database Schemas.

Herman Balsters, Rolf A. de By, Roberto V. Zicari

Proceedings of the ECOOP'93, 1993

1991

The integration of specification aspects in database design.

Rolf A. de By

Universiteit Enschede, ISBN: 978-90-9004461-3, 1991