Various subjects • 2012 - now
Christian Köppe, Ralph Niels, Robert Holwerda, Lars Tijsma, Niek van Diepen, Koen van Turnhout, René Bakker. Flipped Classroom Patterns - Designing Valuable In-Class Meeting. Proceedings of the 20th European Conference on Pattern Languages of Programs (EuroPLoP'15). Irsee, Germany. 2015.
Marjolein Jacobs, Koen van Turnhout, Arthur Bennis, Sabine Craenmehr, Ralph Niels, Lambert Zaad, René Bakker. Contributions to HCI: Introducing the CC-Model and its Pro Forma Abstracts. In: Francisco V. C. Ficarra. (eds.) New Challenges in Computer Graphics, Robot Vision, Visual Interfaces and Information Sciences Publisher: Blue Herons Editions (Canada, Argentina, Spain and Italy), November 2015.
Marjolein Jacobs, Koen van Turnhout, Arthur Bennis, Sabine Craenmehr, Ralph Niels, Lambert Zaad, René Bakker. Contributions to HCI: Introducing the CC-Model and its pro-forma abstracts. Proceedings of the Fifth International Symposium on communicability, computer graphics and innovative design for interactive systems (CCGIDIS 2015). Best paper award.
Marjolein Jacobs, Anne Coppens, Tineke Jacobs, Ralph Niels, Nynke Verhoeven, Koen van Turnhout, René Bakker. Proeven van praktijkgericht onderzoek: de methodenkaart in de beroepspraktijk van ICT en Media. Proceedings of the NIOC 2015.
Marjolein Jacobs, Anne Coppens, Tineke Jacobs, Ralph Niels, Nynke Verhoeven, Koen van Turnhout, René Bakker. Proeven van onderzoek: de methodenkaart in de beroepspraktijk van ICT en Media. Arnhem: ICA (internal publication), 2015.
Koen van Turnhout, Arthur Bennis, Sabine Craenmehr, Robert Holwerda, Marjolein Jacobs, Ralph Niels, Lambert Zaad, Stijn Hoppenbrouwers, Dick Lenior, René Bakker. Design Patterns for Mixed-Method Research in HCI. Proceedings of the 8th Nordic Conference on Human-Computer Interaction (NordiCHI 2014). ACM New York. Pages 361-370. October 2014.
Computer assisted handwriting analysis, leading to PhD • 2005 - 2010
Ralph Niels. Allograph based writer identification, handwriting analysis and character recognition. PhD thesis, Donders Centre for Brain, Behaviour and Cognition, Radboud University Nijmegen, Netherlands, 2010. Website.
Axel Brink, Ralph Niels, Roeland van Batenburg, Elisa van den Heuvel & Lambert Schomaker. Towards robust writer verification by correcting unnatural slant. Pattern Recognition Letters. Volume 32, Issue 3, February 2011, Pages 449-457.
Louis Vuurpijl, Don Willems, Ralph Niels & Marcel van Gerven. Design Issues for Pen-Centric Interactive Maps. In Robert Babuska, Frans C.A. Groen (Eds.) Interactive Collaborative Information Systems. Springer, 2010.
Ralph Niels, Don Willems & Louis Vuurpijl. The NicIcon database of handwritten icons. 11th International Conference on the Frontiers of Handwriting Recognition (ICFHR 2008), pages 296-301, Montréal, Canada. August 19-21, 2008.Ralph Niels, Franc Grootjen & Louis Vuurpijl. Writer identification through information retrieval: the allograph weight vector. 11th International Conference on the Frontiers of Handwriting Recognition (ICFHR 2008), pages 481-486, Montréal, Canada. August 19-21, 2008.
Carlo di Brina, Ralph Niels, Anneloes Overvelde, Gabriel Levi & Wouter Hulstijn. Dynamic time warping: A new method in the study of poor handwriting. Human Movement Science. Vol. 21, No. 2. Pages 242-255. April 2008.
Vivian Blankers, Ralph Niels & Louis Vuurpijl. Writer identification by means of explainable features: shapes of loop and lead-in strokes. In Proceedings of the 19th Belgian-Dutch Conference on Artificial Intelligence (BNAIC 2007), pages 17-24, Utrecht, The Netherlands, November 5-6, 2007.
Ralph Niels & Louis Vuurpijl. Generating copybooks from consistent handwriting styles. In Proceedings of the 9th International Conference on Document Analysis and Recognition (ICDAR2007), pages 1009-1013, Curitiba, Brazil, September 23-26, 2007.
Vivian Blankers & Ralph Niels. Writer identification by means of loop and lead-in features. In Proceedings of the 1st NSVKI Student Conference (NSVKI), pages 37-43, Nijmegen, The Netherlands, June 22, 2007.
Carlo di Brina & Ralph Niels & Anneloes Overvelde & Gabriel Levi & Wouter Hulstijn. Dynamic Time Warping: A new method for analyzing the poor spatial characteristics of letters in dysgraphic children. Developmental Coordination Disorder Conference (DCD - VII), Melbourne, Australia, February 6-9, 2007.
Anneloes Overvelde & Carlo di Brina & Ralph Niels & Gabriel Levi & Wouter Hulstijn. Learning to write a new letter form: Good and poor writers compared on spatial characteristics and movement kinematics. Developmental Coordination Disorder Conference (DCD - VII), Melbourne, Australia, February 6-9, 2007.
Ralph Niels & Louis Vuurpijl & Lambert Schomaker. Automatic allograph matching in forensic writer identification. International Journal of Pattern Recognition and Artificial Intelligence (IJPRAI). Vol. 21, No. 1. Pages 61-81. February 2007.
Ralph Niels & Louis Vuurpijl. Automatic trajectory extraction and validation of scanned handwritten characters. 10th International coursesshop on Frontiers In Handwriting Recognition (IWFHR10), pages 343-348, La Baule, France, October 23-26, 2006.
Ralph Niels, Louis Vuurpijl & Lambert Schomaker. Introducing TRIGRAPH - Trimodal Writer Identification. Presented at the ENFSI Conference of the European Netcourses of Forensic Handwriting Experts (ENFHEX2005), Budapest, Hungary, November 10-12, 2005.
Ralph Niels & Louis Vuurpijl. Dynamic Time Warping Applied to Tamil Character Recognition. In Proceedings of the 8th International Conference on Document Analysis and Recognition (ICDAR2005), pages 730-734, Seoul, Korea, August 29-September 1, 2005.
Ralph Niels & Louis Vuurpijl. Using Dynamic Time Warping for Intuitive Handwriting Recognition. In Advances in Graphonomics, proceedings of the 12th Conference of the International Graphonomics Society (IGS2005), Eds. A. Marcellli and C. De Stefano, pages 217-221, Salerno, Italy, June 26-29, 2005.
ISMC Award for best presentation given by a graduate student (www.i-s-m-c.org).
Ralph Niels. Dynamic Time Warping: An Intuitive Way of Handwriting Recognition? Master's thesis, Radboud University Nijmegen, 2004.
Manuscript committee: Dr. L.G. Vuurpijl (supervisor), Prof. Dr. C.M. Jonker and Dr. P.A. Kamsteeg.
Louis Vuurpijl, Ralph Niels, Merijn van Erp, Lambert Schomaker & Eugene Ratzlaff. Verifying the UNIPEN devset. In Proceedings of the 9th International coursesshop on Frontiers In Handwriting Recognition (IWFHR9), pages 586-591, Tokyo, Japan, October 2004.
Teacher and developer • 2014 - Now
An introduction course in C programming (typedef, struct, pointers, DEFINE, etc.) and a course about embedded software and selecting hardware (esp. sensors) for various tasks.
Teacher, developer and owner • 2012 - Now
Introduction course object oriented programming in Java (basic and a bit more complex inheritance schemes, abstract classes, interfaces, static methods and variables, etc.). Basics of software design are also discussed. Aimed at first years students of computer science.
Teacher• 2013 - Now
Introduction course embedded software development. Students use an Arduino Uno and simple sensors and actuators to learn about the impact of having to deal with hardware when designing and building software. Aimed at first years students of computer science.
Teacher• 2012 - Now
Introduction course programming in Processing (Java). Aimed at first years students of computer science with little or no programming experience at all.
Teacher• 2012 - 2014
Course about Java EE, distributed applications, various Java frameworks and extensions (e.g., Spring, Spring-Roo, Hibernate, Java Beans) and web services (REST, SOAP).
Teacher and developer• 2013 - 2014
Mainly theoretical course about various human computer interaction paradigms (speech, gesture, handwriting, ...) and artificial intelligence (classic AI, emergent intelligence). All related to embedded media objects and their design.
Supervisor and domain expert• 2012 - now
After 6 eight week courses, first year students develop their professional skills (working together, planning, reporting, ...) in an eight weeks project that is performed for a (fictitious) client.
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