Chat Wacharamanotham

Chat Wacharamanotham


Alumni

Office location:  
Office hours:  
Telephone:  
Email:   chat@acm.org




Chat left the group at the end of October 2015.
The following table gives a short overview on who takes over his responsibilities in the future:

ViconPhilipp Wacker
Aixplorer II outdoor guidePhilipp Wacker
StatsplorerKrishna Subramanian
Sign master Christian Cherek
Statistics first-aid
For more: see Chat's heritage page (internal)


From November 2015, I will be working at People and Computing Lab, University of Zurich.
For further contacts, please use my ACM email address, which will be redirected to my current email address chat@acm.org.





Research Publications Teaching Code Misc



Hi, Chat’s here! I am interested in reinterpreting human motions for input to improve accessibility, expressivity, and ergonomics. One track of this is to empower users with hand tremor to use touchscreens with Swabbing input. Since 2011, I directed the second track of my research to mid-air inputs. I also have several works on interactive surfaces. I am interested in research methods and statistics, and even hosted a bookclub in 2012.
My lifetime goal is to find a reliable way to make people understand and practice a right mixture of design thinking and scientific method in their everyday life. Specifically, I am interested the role of HCI to encourage users to be aware of the extent of their knowledge and their inherent biases that influences their day-to-day decisions.




Projects

Statsplorer is a software tool that allows users to do statistical analysis by interacting with visualizations. It guides the user to select appropriate statistical analysis tasks based on her research questions. It also prevents common statistical analysis mistakes and promotes understanding by collocating appropriate visualizations with statistical analysis results. (read more)

Full paper at CHI 2015, Student Research Competition (Krishna Subramanian) at CHI 2014
FINS: Understanding Finger Input in Near-Surface Space leverage midair space near device, e.g., above keyboards or mouses, as additional input modality. (read more)

Full paper at CHI 2014
Swabbing is a touchscreen target selection method designed for users with hand tremor. Instead of touching on the target, the user slides his hand towards a target placed along the edge of the screen. In collaboration with Alexander Mertens, Chair and Institute of Industrial Engineering and Ergonomics (read more)

Note and workshop paper at CHI 2011. Workshop paper at CHI 2013.
Aixplorer is a mobile audio and multimedia tour guide that will help you explore Aachen and its rich cultural and historical heritage (read more)
How We Gesture is a study of how users’ perception and behavior of gestural interaction differ between gesturing to human vs. gesturing to computer. In collaboration with Sukeshini A. Grandhi (previously at Natural Media & Engineering Lab, now at Eastern Connecticut State University). (read more)

Work-in-progress at CHI 2013
Indirect Touch is a multitouch system in which users indirectly manipulate objects on the vertical screen by with touches on the horizontal screen. This interaction improves ergonomics of interactions over an extended period by reducing gorilla arm (vertical screen) and stiff neck (horizontal screen). (read more)

Full paper CHI 2013
Fillables are low-cost and ubiquitous everyday vessels that are appropriated as tangible controllers whose haptics are tuned ad-hoc by filling, e.g., with water. (read more)

Extended abstract for alt.chi at CHI 2013
Forceposé uses a pressure-sensitive touchpad to enable quick glances and interactions with occluded windows in Mac OS X. (read more)

Demo at UIST 2012 Student Innovation Contest
FingerFlux is a haptic output technique that provides near-surface haptic feedback on interactive tabletops. It combines an electromagnetic display with a permanent magnet attached to the user’s index finger. (read more)

Paper and demo at UIST 2011. Received 3rd place in the category “Best demo”.
Dynamic Portals is a light-weight touch-based technique that allows to transfer virtual objects to distant locations on an interactive tabletop. (read more)

Note at ITS 2011. Received Best Note Award.

Silhouettes is an interactive collaborative gesture-based experience for the German-Chinese House at the World EXPO 2010 in Shanghai. (read more)

Software Developer
The goal of the Personal Orchestra series of projects is to adapt this centuries-old interaction metaphor to digital multimedia so that everyone may enjoy the wonderful experience of conducting world-famous orchestras. (read more)

Student Assistant: Content Preparation for Personal Orchestra 6
Aixplorer is your mobile guide to the Route Charlemagne, Aachen’s new tourist concept. It is a mobile audio and multimedia tour guide that will help you explore the city and its rich cultural and historical heritage. (read more)

Student Assistant: Location Tracking
The goal of the TWEND is a prototype for direct-manipulation by deformation in mobile devices. (read more)

Student Assistant: Programmer




Publications

An arrow marks a major peer-reviewed archival publication.
PDF of papers published by ACM are available at no charge from my ACM Author-izer page.

2016

Nur Al huda Hamdan, Florian Heller, Chat Wacharamanotham, Jan Thar, and Jan Borchers. Grabrics: A Foldable Two-Dimensional Textile Input Controller. In CHI '16 EA: Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems, pages 2497–2503, May 2016. Homepage PDF Document BibTeX Entry.
Philipp Wacker, Chat Wacharamanotham, Daniel Spelmezan, Jan Thar, David A. Sánchez, René Bohne, and Jan Borchers. VibroVision: An On-Body Tactile Image Guide for the Blind. In CHI '16 EA: Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems, pages 3788–3791, New York, NY, USA, May 2016. ACM. Homepage PDF Document BibTeX Entry.
Chatchavan Wacharamanotham. Drifts, Slips, and Misses: Input Accuracy for Touch Surfaces. PhD thesis, RWTH Aachen University, Aachen, Germany, February 2016. Homepage PDF Document BibTeX Entry.

2015

Simon Voelker, Kjell Ivar Øvergård, Chat Wacharamanotham, and Jan Borchers. Knobology Revisited: A Comparison of User Performance between Tangible and Virtual Rotary Knobs. In ITS '15: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, pages 35–38, New York, NY, USA, November 2015. ACM. PDF Document BibTeX Entry.
Florian Heller, Simon Voelker, Chat Wacharamanotham, and Jan Borchers. Transporters: Vision & Touch Transitive Widgets for Capacitive Screens. In CHI '15: Extended Abstracts of the SIGCHI Conference on Human Factors in Computing Systems, pages 1603–1608, April 2015. Homepage PDF Document BibTeX Entry.
Chat Wacharamanotham, Krishna Subramanian, Sarah Theres Völkel, and Jan Borchers. Statsplorer: Guiding Novices in Statistical Analysis. In CHI '15: Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, pages 2693–2702, New York, NY, USA, April 2015. Homepage PDF Document BibTeX Entry.

2014

Florian Heller, Stefan Ivanov, Chat Wacharamanotham, and Jan Borchers. FabriTouch: Exploring Flexible Touch Input on Textiles. In ISWC '14: Proceedings of the 2014 ACM International Symposium on Wearable Computers, pages 59–62, September 2014. PDF Document BibTeX Entry.
Chat Wacharamanotham. Making Bare Hand Input More Accurate. In CHI '14: Extended Abstracts of the SIGCHI Conference on Human Factors in Computing Systems, pages 307–310, April 2014. PDF Document BibTeX Entry.
Chat Wacharamanotham, Kashyap Todi, Marty Pye, and Jan Borchers. Understanding Finger Input Above Desktop Devices. In CHI '14: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pages 1083–1092, New York, NY, USA, April 2014. PDF Document BibTeX Entry.

2013

Simon Voelker, Chat Wacharamanotham, and Jan Borchers. An Evaluation of State Switching Methods for Indirect Touch Systems. In CHI '13: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pages 745–754, New York, NY, USA, April 2013. ACM. Homepage PDF Document BibTeX Entry.
Chat Wacharamanotham, Dennis Kehrig, Alexander Mertens, Christopher Schlick, and Jan Borchers. Designing a Touchscreen Web Browser for People with Tremors. In CHI 2013 Workshop on Mobile Accessibility, Paris, France, April 2013. PDF Document BibTeX Entry.
Sukeshini A. Grandhi, Chat Wacharamanotham, Gina Joue, Jan Borchers, and Irene Mittelberg. How We Gesture Towards Machines: an Exploratory Study of User Perceptions of Gestural Interaction. In CHI '13: Extended Abstracts of 2013 ACM SIGCHI Conference on Human Factors in Computing, pages 1209–1214, New York, NY, USA, April 2013. ACM. PDF Document BibTeX Entry.
Christian Corsten, Chat Wacharamanotham, and Jan Borchers. Fillables: Everyday Vessels as Tangible Controllers with Adjustable Haptics. In CHI '13: Extended Abstracts of the 31st Annual Symposium on Human Factors in Computing Systems, pages 2129–2138, April 2013. PDF Document BibTeX Entry.

2012

Alexander Mertens, Chat Wacharamanotham, Jan Hurtmanns, Martin Kronenbuerger, Peter H. Kraus, Arndt Hoffmann, Christopher Schlick, and Jan Borchers. Model Based Processing of Swabbing Movements on Touch Screens to Improve Accuracy and Efficacy for Information Input of Individuals Suffering from Kinetic Tremor. Human – Computer Systems Interaction: Backgrounds and Applications 2, Vol. 98:503–522, August 2012. Homepage PDF Document BibTeX Entry.

2011

Simon Voelker, Malte Weiss, Chat Wacharamanotham, and Jan Borchers. Dynamic Portals: A Lightweight Metaphor for Fast Object Transfer on Interactive Surfaces. In ITS '11: Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, pages 158–161, New York, NY, USA, 2011. ACM Press. ITS 2011 Best Note Award, PDF Document BibTeX Entry.
Malte Weiss, Chat Wacharamanotham, Simon Voelker, and Jan Borchers. FingerFlux: Near-surface Haptic Feedback on Tabletops. In UIST '11: Proceedings of the 24th annual ACM symposium on User interface software and technology, pages 615–620, New York, NY, USA, 2011. ACM Press. PDF Document Movie BibTeX Entry.
Alexander Mertens, Chatchavan Wacharamanotham, Jan Hurtmanns, Niels Huck, and Jörg Schulz and. SWABBING: Touchscreen-basierte Mensch-Rechner-Interaktion für Personen mit Tremorerkrankungen des Hand-Arm-Apparats. das wissenschaftliche Programm des Kongresses der Deutschen Gesellschaft für Neurologie (DGN), September 2011. (accepted for poster presentation), BibTeX Entry.
Tongyan Ning, Jörg Müller, Robert Walter, Gilles Bailly, Chat Wacharamanotham, Florian Alt, and Jan Borchers. No Need to Stop: Menu Techniques for Passing by Public Displays. In CHI 2011 Workshop on Large Displays in Urban Life: from Exhibition Halls to Media Facades, Vancouver, Canada, May 2011. PDF Document BibTeX Entry.
Chat Wacharamanotham, Jan Hurtmanns, Alexander Mertens, Martin Kronenbuerger, Christopher Schlick, and Jan Borchers. Evaluating Swabbing: a Touchscreen Input Method for Elderly Users with Tremor. In CHI '11: Proceedings of the 29th Annual SIGCHI Conference on Human Factors in Computing Systems, pages 623–626, New York, NY, USA, May 2011. ACM Press. Homepage PDF Document BibTeX Entry.

2010

Chatchavan Wacharamanotham, Jonathan Meyer, Jonathan Diehl, and Jan Borchers. The Interactive Bracelet: An input device for bimanual interaction. In Mobile HCI 2010 Workshop on Ensembles of On-Body Devices, Lisbon, Portugal, September 2010. PDF Document BibTeX Entry.

2007–09 (Publications outside HCI area)

  • Chatchavan Wacharamanotham. Using semantic web technologies for data update, Master Thesis, School of Informatics, University of Edinburgh, 2009.
  • Chatchavan Wacharamanotham, Mukda Suktarachan, Asanee Kawtrakul. The Development of Web-based Annotation System for Thai Treebank, The Seventh International Symposium on Natural Language Processing (SNLP2007), Bangkok, Thailand, 2007.



Teaching

SemesterCourse
SS 2014 Current Topics in Human–Computer Interaction
Learning experience designer and course coordinator
WS 2013/14 iPhone Application Programming
Course organizer
SS 2013 Current Topics in Human–Computer Interaction
Learning experience designer and course coordinator
WS 2012/13 Media Computing ProjectInteractive Assembly
Course facilitator, with René Bohne
Designing Interactive Systems I
Assisting lab tutor, with Simon Völker and Christian Corsten
SS 2012 Media Computing Project
Lab tutor, with Max Möllers
WS 2011/12 Designing Interactive Systems I
Lecture TA and Lab tutor, with Simon Völker
SS 20111 Current Topics in Human–Computer Interaction
Primary Lecture TA, with Leonhard Lichtschlag
WS 2010/11 Designing Interactive Systems I
Lecture TA and Lab tutor (Bonn), with Gero Herkenrath


Supervised Thesis Students

Swabbing
Bare hand input techniques
Interactive statistics
Others
1st generation
(2010–11)
Jan Hurtmanns (B) Tongyan Ning (M*)
Transitional
(2011–12)
Niels Huck (D)
Alexandru Popa (M)
Christoph Klaja (D)
Sven Föster (B*)
Ying Zhang (M*)
2nd generation
(2012–13)
Dennis Kehrig (D) Marty Pye (B)
Kashyap Todi (M)
Alexander Schiffel (D*)
3rd generation
(2013–14)
Hesham Omran (M)
Jibin Ou (M*)
Krishna Subramanian (M)
4th generation
(2014)
Sven Jung (B)
Sarah Völkel (B)
5th generation
(2014–2015)
Verena Kuhr (M)
Marty Pye (M)

(B): Bachelor’s thesis. (M) Master’s thesis, (D) Diploma’s thesis, * as a second supervisor
Mouse over each name for the thesis title.



Code

Apps for the user of one

Series of applications that I wrote and fine-tuned to suit my unique use. These apps are usually too trivial or too silly to be made by others.

Composer allows you to send an email without being distracted to check your mailbox. (iPhone)



Services

You can ask me about:
  • Programming: OS X & iOS programming with Objective-C, R, Processing, Python
  • HCI research method: Experimental design, Quantitative/Qualitative analysis, Statistics, and Survey design.
  • Hardware: I know my way around expensive stuff around the chair: Vicon motion tracking system, OptiTrack, Kinect, Anoto digital pen, Inkling, and ForcePad.

HCI knowledge pointers

Research Tools:

Teaching Goodies:

Guides

  • Working with me? This guide will lead us to work happily and effectively together.



etc., etc.

As a HCI researcher, I am honored to be a reviewer for publications in these venues: CHI (2011–15), UIST (2012, where I blessed with a “Great Reviewer” star, 2013-14), MobileHCI (2013–14), ITS (2014), GI (2013), SUI (2013), DIS (2012), TVX (2014), C&C (2015), and APCHI (2012).

I also designed Student Volunteer t-shirts for UIST ’10 (not selected), UIST ’11, and CHI ’13 (not selected).

I am a strong proponent of Getting Things Done. In my free time, I love reading popular psychology books and listen to classical music. I tweet @chatchavan.


[Google Scholar] [ORCID] (internal access: vcard)

Created by hilke. Last Modification: Friday 26 of February, 2016 15:42:55 by chat.

Media Computing Group at RWTH Aachen

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