Publication statistics

Pub. period:2004-2012
Pub. count:10
Number of co-authors:11



Co-authors

Number of publications with 3 favourite co-authors:

Hans-Werner Gellersen:9
Nicolas Villar:3
Carl Gutwin:2

 

 

Productive colleagues

Florian Block's 3 most productive colleagues in number of publications:

Carl Gutwin:116
Albrecht Schmidt:110
Mark Billinghurst:92
 
 
 

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Florian Block

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Publications by Florian Block (bibliography)

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2012
 
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Block, Florian, Wigdor, Daniel, Phillips, Brenda Caldwell, Horn, Michael S. and Shen, Chia (2012): FlowBlocks: a multi-touch ui for crowd interaction. In: Proceedings of the 2012 ACM Symposium on User Interface Software and Technology 2012. pp. 497-508.

Multi-touch technology lends itself to collaborative crowd interaction (CI). However, common tap-operated widgets are impractical for CI, since they are susceptible to accidental touches and interference from other users. We present a novel multi-touch interface called FlowBlocks in which every UI action is invoked through a small sequence of user actions: dragging parametric UI-Blocks, and dropping them over operational UI-Docks. The FlowBlocks approach is advantageous for CI because it a) makes accidental touches inconsequential; and b) introduces design parameters for mutual awareness, concurrent input, and conflict management. FlowBlocks was successfully used on the floor of a busy natural history museum. We present the complete design space and describe a year-long iterative design and evaluation process which employed the Rapid Iterative Test and Evaluation (RITE) method in a museum setting.

© All rights reserved Block et al. and/or ACM Press

2010
 
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Block, Florian and Gellersen, Hans-Werner (2010): Two-handed input in a standard configuration of notebook with external mouse. In: Proceedings of the Sixth Nordic Conference on Human-Computer Interaction 2010. pp. 62-71.

This paper discusses two-handed input for interaction with notebooks, motivated by the observation that notebooks are often used with an external mouse. We present results of a survey of 905 notebook users, of which 63.8% reported occasional, and 47.0% regular use of a mouse instead of the built-in pointing device (a touchpad in 95.8% of the reported configurations). Based on this finding, we propose use of the built-in touchpad with the non-dominant hand when an external mouse is used as primary pointing device. We provide a systematic analysis of the input space of such a configuration, and contribute a set of techniques that specifically exploit touchpad properties for input with the non-dominant hand. These techniques include flick, scale and rotate gestures; absolute positioning with tokens; and touchpad use as key modifier. The techniques are demonstrated in a variety of GUI applications in a standard environment of notebook with external mouse.

© All rights reserved Block and Gellersen and/or their publisher

 
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Block, Florian and Gellersen, Hans-Werner (2010): Space-multiplexed input on mouse-extended notebooks. In: Proceedings of the Sixth Nordic Conference on Human-Computer Interaction 2010. pp. 603-606.

Space-multiplexed input allows the distribution of tasks across spatially separated input devices. In this paper, we present an empirical study that evaluates the practical applicability of space-multiplexed input to mouse-extended notebooks -- a common configuration which integrates both a touchpad and an external mouse. Our study shows that (1) two-handed input can instantly be performed by subjects without significant loss in performance; (2) one-handed operation of space-multiplexed interfaces performs worse than time-multiplexed input; and (3) the touchpad can be faster to acquire than virtual handles of standard size.

© All rights reserved Block and Gellersen and/or their publisher

 
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Block, Florian and Gellersen, Hans-Werner (2010): The impact of cognitive load on the perception of time. In: Proceedings of the Sixth Nordic Conference on Human-Computer Interaction 2010. pp. 607-610.

In cognitive psychology it is well known that cognitive load can have a significant impact on time perception. In this paper, we present an observation made during an empirical evaluation of several input techniques, showing that the cognitive load occurring during user input can significantly reduce perceived time. We provide a discussion of our findings, proposing that existing work in cognitive psychology, such as the Cognitive-Timer Model is applicable to HCI; and that this understanding can provide valuable information for predicting and actively modeling perceived input performance when designing user interfaces.

© All rights reserved Block and Gellersen and/or their publisher

 
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Block, Florian, Gellersen, Hans-Werner and Villar, Nicolas (2010): Touch-display keyboards: transforming keyboards into interactive surfaces. In: Proceedings of ACM CHI 2010 Conference on Human Factors in Computing Systems 2010. pp. 1145-1154.

In spite of many advances in GUI workstations, the keyboard has remained limited to text entry and basic command invocation. In this work, we introduce the Touch-Display Keyboard (TDK), a novel keyboard that combines the physical-ergonomic qualities of the conventional keyboard with dynamic display and touch-sensing embedded in each key. The TDK effectively transforms the keyboard into an interactive surface that is seamlessly integrated with the interaction space of GUIs, extending graphical output, mouse interaction and three-state input to the keyboard. This gives rise to an entirely new design space of interaction across keyboard, mouse and screen, for which we provide a first systematic analysis in this paper. We illustrate the emerging design opportunities with a host of novel interaction concepts and techniques, and show how these contribute to expressiveness of GUIs, exploration and learning of keyboard interfaces, and interface customization across graphics display and physical keyboard.

© All rights reserved Block et al. and/or their publisher

 
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Bial, Dominik, Block, Florian and Gellersen, Hans-Werner (2010): A study of two-handed scrolling and selection on standard notebook computers. In: Proceedings of the HCI10 Conference on People and Computers XXIV 2010. pp. 355-364.

Although two-handed input can improve both efficiency and quality of user interaction, it is not commonly adopted as it requires additional input devices. In this paper we propose two-handed interaction on standard hardware -- notebooks with external mouse -- and for a common task -- 2D scrolling. We introduce four techniques that leverage the built-in touchpad as a dedicated scrolling device for the non-dominant hand, for scenarios in which the mouse is used in parallel for object selection and manipulation tasks. The techniques implement relative scrolling, flicking, absolute positioning and token-based input on the touchpad. We present an empirical evaluation of these techniques in a task that simulates activities such as retouching of photos, or interaction with maps, in which users often switch between mouse interaction and scrolling. The results show initially best performance with relative scrolling as a familiar mapping, but strong learning effects for all techniques. Users had difficulty with absolute mapping of touchpad input due to a tendency to clutching and finger repositioning, but we observed that these problems are compensated when a token is used as absolute input device.

© All rights reserved Bial et al. and/or BCS

2008
 
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Block, Florian, Gutwin, Carl, Haller, Michael, Gellersen, Hans-Werner and Billinghurst, Mark (2008): Pen and paper techniques for physical customisation of tabletop interfaces. In: Third IEEE International Workshop on Tabletops and Interactive Surfaces Tabletop 2008 October 1-3, 2008, Amsterdam, The Netherlands. pp. 17-24.

 
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Block, Florian, Villar, Nicolas and Gellersen, Hans-Werner (2008): A malleable physical interface for copying, pasting, and organizing digital clips. In: Schmidt, Albrecht, Gellersen, Hans-Werner, Hoven, Elise van den, Mazalek, Ali, Holleis, Paul and Villar, Nicolas (eds.) TEI 2008 - Proceedings of the 2nd International Conference on Tangible and Embedded Interaction February 18-20, 2008, Bonn, Germany. pp. 117-120.

 
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Block, Florian, Haller, Michael, Gellersen, Hans-Werner, Gutwin, Carl and Billinghurst, Mark (2008): VoodooSketch: extending interactive surfaces with adaptable interface palettes. In: Schmidt, Albrecht, Gellersen, Hans-Werner, Hoven, Elise van den, Mazalek, Ali, Holleis, Paul and Villar, Nicolas (eds.) TEI 2008 - Proceedings of the 2nd International Conference on Tangible and Embedded Interaction February 18-20, 2008, Bonn, Germany. pp. 55-58.

2004
 
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Block, Florian, Schmidt, Albrecht, Villar, Nicolas and Gellersen, Hans-Werner (2004): Towards a Playful User Interface for Home Entertainment Systems. In: Markopoulos, Panos, Eggen, Berry, Aarts, Emile H. L. and Crowley, James L. (eds.) EUSAI 2004 - Ambient Intelligence - Second European Symposium November 8-11, 2004, Eindhoven, The Netherlands. pp. 207-217.

 
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Changes to this page (author)

23 Nov 2012: Modified
03 Apr 2012: Modified
02 Nov 2010: Modified
02 Nov 2010: Modified
02 Nov 2010: Modified
02 Nov 2010: Modified
01 Jun 2009: Modified
01 Jun 2009: Modified
01 Jun 2009: Modified
29 May 2009: Added

Page Information

Page maintainer: The Editorial Team
URL: http://www.interaction-design.org/references/authors/florian_block.html

Publication statistics

Pub. period:2004-2012
Pub. count:10
Number of co-authors:11



Co-authors

Number of publications with 3 favourite co-authors:

Hans-Werner Gellersen:9
Nicolas Villar:3
Carl Gutwin:2

 

 

Productive colleagues

Florian Block's 3 most productive colleagues in number of publications:

Carl Gutwin:116
Albrecht Schmidt:110
Mark Billinghurst:92
 
 
 

Upcoming Courses

go to course
User-Centred Design - Module 2
Starts tomorrow LAST CALL!
go to course
Design Thinking: The Beginner's Guide
Starts the day after tomorrow !
 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

 
 
The Social Design of Technical Systems: Building technologies for communities. 2nd Edition
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
Gamification at Work: Designing Engaging Business Software
by Janaki Mythily Kumar and Mario Herger
start reading
 
 
 
 
The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad
start reading
 
 
 
 
The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam
start reading