If you made any changes in Pure these will be visible here soon.

Research Output 1990 2019

Filter
Article
2019
1 Citation (Scopus)
39 Downloads (Pure)

Delineation of agricultural fields in smallholder farms from satellite images using fully convolutional networks and combinatorial grouping

Persello, C., Tolpekin, V. A., Bergado, J. R. & de By, R. A., 15 Sep 2019, In : Remote sensing of environment. 231, p. 1-18 18 p., 111253.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
small farms
smallholder
Farms
Satellites
farm
11 Downloads (Pure)

Location Privacy in the Wake of the GDPR

Georgiadou, P. Y., de By, R. A. & Kounadi, O., 22 Mar 2019, In : ISPRS international journal of geo-information. 8, 3, p. 1-17 17 p., 157.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
data protection
Data privacy
privacy
African Union
regulation
2018
6 Citations (Scopus)
117 Downloads (Pure)

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

Aguilar, R., Zurita-Milla, R., Izquierdo-Verdiguier, E. & A. De By, R., 2018, In : Remote sensing. 10, 5, 18 p., 729.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
smallholder
farming system
crop
farm
voting
10 Citations (Scopus)
116 Downloads (Pure)

Assessing yield and fertilizer response in heterogeneous smallholder fields with UAVs and satellites

Schut, A. G. T., Traore, P. C. S., Blaes, X. & de By, R. A., 2018, In : Field Crops Research. 221, p. 98-107 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
smallholder
vegetation index
fertilizer
fertilizers
interception
1 Citation (Scopus)
59 Downloads (Pure)

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

García-Chapeton, G. A., Ostermann, F. O., de By, R. A. & Kraak, M. J., 19 Aug 2018, In : Transactions in GIS. 22, 3, p. 640-663 24 p.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
visual analysis
analysis
pressing
2017
5 Citations (Scopus)
41 Downloads (Pure)

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

Stratoulias, D., Tolpekin, V., De By, R., Zurita-milla, R., Retsios, V., Bijker, W., Hasan, M. & Vermote, E., 2017, In : Remote sensing. 9, 10, 20 p., 1048.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
smallholder
image processing
agriculture
sensor
crop
2016
3 Citations (Scopus)

Illegal long-line fishing and albatross extinction risk

Petrossian, G. A., de By, R. A. & Clarke, R. V., 26 Apr 2016, In : Oryx. 52, 2, p. 336-345 10 p.

Research output: Contribution to journalArticleAcademicpeer-review

fishing line
extinction risk
fishing
extinction
fisheries
37 Downloads (Pure)

Spatiotemporal information extraction from a historic expedition gazetteer

Bekele, M. K., de By, R. A. & Singh, G., 2016, In : ISPRS international journal of geo-information. 5, 12, 24 p., 221.

Research output: Contribution to journalArticleAcademicpeer-review

Open Access
File
Trajectories
Processing
Information retrieval
Transducers
event

Transforming smallholder farming through remote sensing

Zurita-Milla, R. & de By, R. A., 2016, In : ICT Update : a current awareness bulletin for ACP agriculture. 82, p. 18-19 2 p.

Research output: Contribution to journalArticleAcademic

2015

Spatial Extent Models for Natural Language Phrases Involving Directional Containment

Singh, G. & de By, R. A., 2015, In : Transactions in GIS. 19, 2, p. 202-224 23 p.

Research output: Contribution to journalArticleAcademicpeer-review

containment
evaluation
parameter
recommendation
2014
4 Citations (Scopus)

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

Srivastava, S. K., Saran, S., de By, R. A. & Dadhwal, V. K., 14 Jan 2014, In : International journal of geographical information science. 28, 3, p. 427-454 28 p.

Research output: Contribution to journalArticleAcademicpeer-review

forest fire
information system
Fires
Information systems
poaching

Cyber-applications as gateway to data-rich digital earth systems

Morales, J. A. & de By, R. A., 14 Jan 2014, In : International journal of digital earth. 7, 7, p. 576-593 18 p.

Research output: Contribution to journalArticleAcademicpeer-review

Earth (planet)
nongovernmental organization
engine
planet
industry
2 Citations (Scopus)

Digital earth applications in the twenty-first century

de By, R. A. & Georgiadou, P. Y., 14 Jan 2014, In : International journal of digital earth. 7, 7, p. 511-515 5 p.

Research output: Contribution to journalArticleAcademicpeer-review

twenty first century
Earth (planet)
private sector
Ecosystems
Information technology

Studying at ITC to kick - start an international career

de By, R. A., Veldkamp, A. & Kheladze, N., 2014, In : ARC news. 35, 4, p. 16-17 2 p.

Research output: Contribution to journalArticleAcademic

2013
16 Downloads (Pure)

//Rondje Zilverling: COMMIT/TimeTrails

van Keulen, M., de Graaff, V., Zhu, Z., de By, R. A., Wombacher, A. & Flokstra, J., Sep 2013, In : I/O Vivat. 28, 4, p. 16-17 2 p.

Research output: Contribution to journalArticleProfessional

File
19 Citations (Scopus)

Poaching, habitat loss and the decline of neotropical parrots : a comparative spatial analysis

Clarke, R. V. & de By, R. A., 2013, In : Journal of experimental criminology. 9, 3, p. 333-353 21 p.

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Searching for spatial data resources by fitness for use

Ivanova, I., Morales, J. M., de By, R. A., Beshe, T. S. & Gebresilassie, M. A., 2013, In : Journal of spatial science. 58, 1, p. 15-28 14 p.

Research output: Contribution to journalArticleAcademicpeer-review

Metadata
fitness
spatial data
resource
Search engines
2010
4 Citations (Scopus)

Using the SDIlight approach in teaching a geoinformatics master : research article

Köbben, B., de By, R. A., Foerster, T., Huisman, O., Lemmens, R. & Morales Guarin, J. M., 2010, In : Transactions in GIS. 14, S1, p. 25-37 13 p.

Research output: Contribution to journalArticleAcademicpeer-review

2009
5 Citations (Scopus)
1 Downloads (Pure)

A skeleton design theory for spatial data infrastructure : methodical construction of SDI nodes and SDI networks

de By, R. A., Lemmens, R. & Morales Guarin, J. M., 2009, In : Earth science informatics. 2, 4, p. 299-313

Research output: Contribution to journalArticleAcademicpeer-review

2007
53 Citations (Scopus)

A system of types and operators for handling vague spatial objects

Dilo, A., de By, R. A. & Stein, A., 2007, In : International journal of geographical information science : IJGIS. 21, 4, p. 397-426

Research output: Contribution to journalArticleAcademicpeer-review

18 Citations (Scopus)

Enhancing geo - service chaining through deep service descriptions

Lemmens, L. R. G., de By, R. A., Gould, M., Wytzisk, A., Granell, C. & van Oosterom, P., 2007, In : Transactions in GIS. 11, 6, p. 849-871 23 p.

Research output: Contribution to journalArticleAcademicpeer-review

Workshop report : design methods for sustainable SDI, 12 September 2007, Kampala, Uganda

de By, R. A. & Eelderink, L., 2007, In : Spatial Data Infrastructure - Africa Newsletter. 6, 10, p. 3-4

Research output: Contribution to journalArticleAcademic

2006
53 Citations (Scopus)

Integrating semantic and syntactic descriptions to chain geographic services

Lemmens, R., Wytzisk, A., de By, R. A., Granell, C., Gould, M. & van Oosterom, P., 2006, In : IEEE internet computing. 10, 5, p. 42-52 11 p.

Research output: Contribution to journalArticleAcademicpeer-review

2001
5 Citations (Scopus)

Environmental factors influencing bird species diversity in Kenya

Oindo, B. O., de By, R. A. & Skidmore, A. K., 2001, In : African journal of ecology. 39, 3, p. 295-302

Research output: Contribution to journalArticleAcademicpeer-review

2000
6 Citations (Scopus)

Interannual variabilty of NDVI and bird species diversity in Kenya

Oindo, B. O., De By, R. A. & Skidmore, A. K., 1 Dec 2000, In : International Journal of Applied Earth Observation and Geoinformation (JAG). 2, 3-4, p. 172-180 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

Biodiversity
Birds
NDVI
species diversity
species richness
1996

An Introduction to CoCoA

Faase, F. J., Even, S. J. & de By, R. A., 1996, In : Memoranda informatica. 10, p. - 95 p.

Research output: Contribution to journalArticleAcademic

2 Citations (Scopus)

Language features for cooperation in an object-oriented database environment

Even, S. J., Faase, F. J. & de By, R. A., Dec 1996, In : International journal of cooperative information systems. 5, 4, p. 469-500 32 p.

Research output: Contribution to journalArticleAcademicpeer-review

Specification languages
Object-oriented databases
Synchronization
Navigation
Network protocols
1995

Deliverable IV.2: Language features for cooperation

Even, S. J., Faase, F. J. & de By, R. A., 1995, In : Memoranda informatica. 95, 40, p. - 24 p.

Research output: Contribution to journalArticleAcademic

Design and Validation of Reliable Complex Computer Systems

van Keulen, M., Skowronek, J., Apers, P. M. G., Balsters, H., Blanken, H., de By, R. A. & Flokstra, J., 1995, In : Memoranda informatica. 95, 38, p. - 10 p.

Research output: Contribution to journalArticleAcademic

Transcoop Deliverable 3.1 - Specification of the Prototype Architecture

de By, R. A., Lehtola, A., Pihlajamaa, O., Veijalainen, J. & Waesch, J., 1995, In : Memoranda informatica. 95, 18, p. - 100 p.

Research output: Contribution to journalArticleAcademic

1994

Functionally specified distributed transactions in co-operative scenarios

de By, R. A., Even, S. J. & Verkoulen, P. A. C., 1994, In : Memoranda informatica. 72, 18 p.

Research output: Contribution to journalArticleProfessional

36 Downloads (Pure)

Integrity Control in Advanced Database Systems

Grefen, P. W. P. J., de By, R. A., de By, R. A. & Apers, P. M. G., Jun 1994, In : Quarterly bulletin of the IEEE Computer Society, Technical Committee on Database Engineering. 17, 2, p. 9-13 5 p.

Research output: Contribution to journalArticleAcademicpeer-review

File

Typing Issues in a deductive object oriented language

Bal, C. M. R., Balsters, H. & de By, R. A., 1994, In : Memoranda informatica. 2, p. -

Research output: Contribution to journalArticleProfessional

1993

A Correct and Efficient Interface for a Logical Query Language with Complex Ojects

Holsheimer, M., de By, R. A. & Ait-kaci, H., 1993, In : Memoranda informatica. 02, p. - 11 p.

Research output: Contribution to journalArticleProfessional

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

Grefen, P. W. P. J. & de By, R. A., 1993, In : Memoranda informatica. 31, p. - 15 p.

Research output: Contribution to journalArticleProfessional

13 Downloads (Pure)

Database research at the University of Twente

Apers, P. M. G., Balsters, H., Blanken, H. M., de By, R. A., Houtsma, M. A. W. (ed.), Verkoulen, P. A. C. & Wilschut, A. N., Dec 1993, In : SIGMOD record. 22, 4, p. 87-91 5 p.

Research output: Contribution to journalArticleAcademic

Open Access
File
Data structures
Students
1992

The TM manual

de By, R. A., Balsters, H. & de Vreeze, C. C., 1992, In : Memoranda informatica. 92, 81, p. - 33 p.

Research output: Contribution to journalArticleProfessional

The TM typing rules

Bal, C. M. R., Balsters, H. & de By, R. A., 1992, In : Memoranda informatica. 92, 80, p. - 9 p.

Research output: Contribution to journalArticleProfessional

1991
31 Downloads (Pure)

Dynamic Specification of Temporal Semantics of Conceptual Models

de By, R., de By, R. A. (ed.) & Wieringa, R. J. (ed.), Oct 1991, In : Data & knowledge engineering. 6, 6, p. 449-449 1 p.

Research output: Contribution to journalArticleAcademic

File
1990

Inheritance in an object-oriented data model

Apers, P. M. G., Balsters, H., de By, R. A. & de Vreeze, C. C., 1990, In : Memoranda informatica. 0, 77, p. - 18 p.

Research output: Contribution to journalArticleProfessional

Sets and constraints in an object-oriented data model

Balsters, H., de By, R. A. & Zicari, R. A., 1990, In : Memoranda informatica. 0, 75, p. - 24 p.

Research output: Contribution to journalArticleProfessional