RelateGateways: Using Spatial Context to Identify and Interact with Pervasive Services (2009)
Carl Fischer, Hans Gellersen, Dominique Guinard, Sara Streng
Abstract. Our everyday life is surrounded by pervasive services. While on the run we should be able to use the mobile devices we carry to interact with these services. Yet, a number of studies have...
Rene Mayrhofer, Hans Gellersen, Mike Hazas
Spontaneous interaction is a desirable characteristic associated with mobile and ubiquitous computing. The aim is to enable users to connect their personal devices with devices encountered in their...
Integrating spatial information in a user interface (2009)
Roswitha Gostner, Gerd Kortuem, Hans Gellersen
Abstract. Indoor location systems enable mobile devices to gather location information of other devices or services. Applications such as the Relate Meeting Tool [2] have been built that support...
Shake well before use: two implementations for implicit context authentication (2009)
Rene Mayrhofer, Hans Gellersen
Abstract. Secure device pairing is especially difficult for spontaneous interaction in ubiquitous computing environments because of wireless communication, lack of powerful user interfaces, and...
Eye movement analysis for activity recognition Elektronische Daten (2009)
Bulling, Andreas, Ward, Jamie A., Gellersen, Hans
Weitere Autoren: Jamie A. Ward, Hans Gellersen, Gerhard Tröster
Usage of Spatial Information for Selection of Co-located Devices (2008)
Gostner, Roswitha, Rukzio, Enrico, Gellersen, Hans
Use of spatial information to support discovery of interaction opportunities has been widely demonstrated. In this paper, we focus on the use of spatial interfaces for identification and selection of...
Reading with Mobile Phone & Large Display (2008)
Gostner, Roswitha, Gellersen, Hans, Kray, Christian, Sas, Corina
In this paper we compare performance and usability between three different device combinations: a) mobile phone b) touch screen c) mobile phone & screen. We show that mobile phone & screen has a...
Markus Klann, Till Riedel, Hans Gellersen, Carl Fischer, Gerald Pirkl, Kai Kunze, ...
Abstract. This paper describes a concept called LifeNet for using an ad-hoc sensor network providing relative positioning and a wearable system to support firefighters at indoor-navigation under...
The Friday Afternoon Project: A Two-Hour VoodooIO Prototyping Exercise (2008)
Nicolas Villar, Hans Gellersen
Abstract: VoodooIO is a new architecture for physical user interfaces, providing interface devices that can be flexibly arranged on an interactive substrate. The architecture supports rapid assembly...
RelateGateways: Using Spatial Context to Identify and Interact with Pervasive Services (2008)
Carl Fischer, Hans Gellersen, Dominique Guinard, Sara Streng
Abstract. Our everyday life is surrounded by pervasive services such as those offered by printers, public displays, multimedia systems, workstations, etc. While on the run we should be able to use...
der Ludwig-Maximilians-Universität München von (2008)
Enrico Rukzio, Tag Der Einreichung, Prof Dr, Albrecht Schmidt, Prof Dr, Hans Gellersen, ...
So far, mobile devices have mainly been used for interactions between the user, the device and the used service without considering the context of use. However, during the last years we have seen a...
Design and Study of an Ambient Display Embedded in the Wardrobe (2008)
Tara Matthews, Hans Gellersen, Kristof Van Laerhoven, Anind Dey
One of the opportunities of ubiquitous computing is to provide information in new ways in our everyday environments. In this paper we explore novel display opportunities in everyday situations with...
RelateGateways: Using Spatial Context to Identify and Interact with Pervasive Services (2008)
Carl Fischer, Hans Gellersen, Dominique Guinard, Sara Streng
Abstract. Our everyday life is surrounded by pervasive services such as those offered by printers, public displays, multimedia systems, workstations, etc. While on the run we should be able to use...
Florian Block, Michael Haller, Hans Gellersen, Carl Gutwin, Mark Billinghurst
Abstract. Voodoosketch is a system that extends a graphical table top interface with physical palettes on which users can dynamically deploy controls as shortcut to application functionality. The...
Mike Hazas, Christian Kray, Hans Gellersen, Henoc Agbota, Gerd Kortuem, Albert Krohn
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
Shake well before use: two implementations for implicit context authentication (2008)
Rene Mayrhofer, Hans Gellersen
Abstract. Secure device pairing is especially difficult for spontaneous interaction in ubiquitous computing environments because of wireless communication, lack of powerful user interfaces, and...
Hans Gellersen, Gerd Kortuem, Albrecht Schmidt, Michael Beigl
with Smart-Its Exploring novel ubiquitous computing systems and applications inevitably requires prototyping physical components. Smart-Its are hardware and software components that augment physical...
Mike Hazas, Christian Kray, Hans Gellersen, Henoc Agbota, Gerd Kortuem, Albert Krohn
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
A physical notice board with digital logic and display (2008)
Nicolas Villar, Kristof Van Laerhoven, Hans Gellersen
A physical notice board is augmented with digital capabilities to provide additional functionality. The notice board retains its form factor, and when used with interactive pins with controllable...
Hans Gellersen, Gerd Kortuem, Albrecht Schmidt, Michael Beigl
with Smart-Its Exploring novel ubiquitous computing systems and applications inevitably requires prototyping physical components. Smart-Its are hardware and software components that augment physical...
David Molyneaux, Hans Gellersen, Gerd Kortuem, Bernt Schiele
Abstract. In this paper we present a new approach for cooperation between mobile smart objects and projector-camera systems to enable augmentation of the surface of objects with interactive projected...
Supporting Device Discovery and Spontaneous Interaction with Spatial References (2008)
Gellersen, Hans, Fischer, Carl, Guinard, Dominique, Gostner, Roswitha, Kortuem, Gerd, Kray, Christian, ...
The RELATE interaction model is designed to support spontaneous interaction of mobile users with devices and services in their environment. The model is based on spatial references that capture the...
VoodooSketch: extending interactive surfaces with adaptable interface palettes (2008)
Block, Florian, Haller, Michael, Gellersen, Hans, Gutwin, Carl, Billinghurst, Mark
Existing gaming controllers are limited in their end-user configurability. As a complement to current game control technology, we present the VoodooIO Gaming Kit, a real-time adaptable gaming...
A malleable physical interface for copying, pasting, and organizing digital clips (2008)
Block, Florian, Villar, Nicolas, Gellersen, Hans
We present a system that extends a typical workstation environment with a malleable physical interface for working with digital clips. It allows users to pick digital clips, give each its own...
Robust Recognition of Reading Activity in Transit Using Wearable Electrooculography (2008)
Bulling, Andreas, Ward, Jamie A, Gellersen, Hans, Tröster, Gerhard
In this work we analyse the eye movements of people in transit in an everyday environment using a wearable electrooculographic (EOG) system. We compare three approaches for continuous recognition of...
Bulling, Andreas, Ward, Jamie A., Gellersen, Hans
Weitere Autoren: Gerhard Tröster
Shake well before use: two implementations for implicit context authentication (2007)
Mayrhofer, Rene, Gellersen, Hans
Secure device pairing is especially di?cult for spontaneous interaction in ubiquitous computing environments because of wireless communication, lack of powerful user interfaces, and scalability...
Mayrhofer, Rene, Gellersen, Hans, Hazas, Mike
Spontaneous interaction is a desirable characteristic associated with mobile and ubiquitous computing. The aim is to enable users to connect their personal devices with devices encountered in their...
Block, Florian, Haller, Michael, Gellersen, Hans, Gutwin, Carl, Billinghurst, Mark
Voodoosketch is a system that extends a graphical table top interface with physical palettes on which users can dynamically deploy controls as shortcut to application functionality. The system...
Klann, Markus, Riedel, Till, Gellersen, Hans, Fischer, Carl, Oppenheim, Matthew, Lukowicz, Paul, ...
Our everyday life is surrounded by pervasive services such as those offered by printers, public displays, multimedia systems, workstations, etc. While on the run we should be able to use the mobile...
RelateGateways: Using Spatial Context to Identify and Interact with Pervasive Services (2007)
Fischer, Carl, Gellersen, Hans, Guinard, Dominique, Oppenheim, Matthew
Our everyday life is surrounded by pervasive services such as those offered by printers, public displays, multimedia systems, workstations, etc. While on the run we should be able to use the mobile...
Cooperative Augmentation of Smart Objects with Projector-Camera Systems (2007)
Molyneaux, David, Gellersen, Hans, Kortuem, Gerd, Schiele, Bernt
In this paper we present a new approach for cooperation between mobile smart objects and projector-camera systems to enable augmentation of the surface of objects with interactive projected displays....
Extending Mobile Devices with Spatially Arranged Gateways to Pervasive Services (2007)
Guinard, Dominique, Streng, Sara, Gellersen, Hans
Discovery and interaction with services is as much a user interface problem as a networking problem. In this paper we introduce a system in which mobile devices are seamlessly extended with Gateways...
Shake well before use: Authentication based on Accelerometer Data (2007)
Mayrhofer, Rene, Gellersen, Hans
Small, mobile devices without user interfaces, such as Bluetooth headsets, often need to communicate securely over wireless networks. Active attacks can only be prevented by authenticating wireless...
RelateGateways: A User Interface for Spontaneous Interaction with Pervasive Services (2007)
Guinard, Dominique, Streng, Sara, Gellersen, Hans
RelateGateways is a user interface and system that supports end-user discovery of and interaction with services dynamically encountered in their immediate environment. The interface is designed for...
On the Security of Ultrasound as Out-of-band Channel (2007)
Mayrhofer, Rene, Gellersen, Hans
Ultrasound has been proposed as out-of-band channel for authentication of peer devices in wireless ad hoc networks. Ultrasound can implicitly contribute to secure communication based on inherent...
The ColorDex DJ system: a new interface for live music mixing (2007)
Villar, Nicolas, Gellersen, Hans, Jervis, Matt, Lang, Alexander
This paper describes the design and implementation of a new interface prototype for live music mixing. The ColorDex system employs a completely new operational metaphor which allows the mix DJ to...
A malleable control structure for softwired user interfaces (2007)
Villar, Nicolas, Gellersen, Hans
Rather than existing as a computer input device with a rigid shape, a predetermined selection of controls and a fixed layout, a malleable control structure is made up of a set of controls that can be...
VoodooFlash: authoring across physical and digital form (2007)
Spiessl, Wolfgang, Villar, Nicolas, Gellersen, Hans, Schmidt, Albrecht
Design tools that integrate hardware and software components facilitate product design work across aspects of physical form and user interaction, but at the cost of requiring designers to work with...
RelateGateways: Using Spatial Context to Identify and Interact with Pervasive Services (2007)
Fischer, Carl, Gellersen, Hans, Guinard, Dominique, Oppenheim, Matthew
Our everyday life is surrounded by pervasive services. While on the run we should be able to use the mobile devices we carry to interact with these services. Yet, a number of studies have shown that...
Integrating spatial information in a user interface (2007)
Gostner, Roswitha, Kortuem, Gerd, Gellersen, Hans
Indoor location systems enable mobile devices to gather location information of other devices or services. Applications such as the Relate Meeting Tool [2] have been built that support cross-device...
RelateGateways: A User Interface for Spontaneous Interaction with Pervasive Services (2007)
Dominique Guinard, Sara Streng, Hans Gellersen, Pervasive Services
RelateGateways is a user interface and system that supports end-user discovery of and interaction with services dynamically encountered in their immediate environment. The interface is designed for...
Shake well before use: Authentication based on accelerometer data (2007)
Rene Mayrhofer, Hans Gellersen
Abstract. Small, mobile devices without user interfaces, such as Bluetooth headsets, often need to communicate securely over wireless networks. Active attacks can only be prevented by authenticating...
Approach Authentication Protocol and Security Evaluation (2007)
Session D, Rene Mayrhofer, Hans Gellersen, Mike Hazas
Wireless communication is insecure
An Authentication Protocol using Ultrasonic Ranging (2006)
Mayrhofer, Rene, Hazas, Mike, Gellersen, Hans
This report presents a method for establishing and securing spontaneous interactions on the basis of spatial references which are obtained by accurate sensing of relative device positions. Utilising...
Locating Physical Interface Objects on Interactive Surfaces. (2006)
Block, Florian, Gellersen, Hans, Hazas, Mike, Molyneaux, David, Villar, Nicolas
Pin&Play has enabled a new type of surface-based physical user interface, characterised by dynamic arrangement of interface objects on a surface area. Previous work has shown that this affords rapid...
VoodooIO Gaming Kit: A real-time adaptable gaming controller (2006)
Villar, Nicolas, Gilleade, Kiel Mark, Ramduny-Ellis, Devina, Gellersen, Hans
Existing gaming controllers are limited in their end-user configurability. As a complement to current game control technology, we present the VoodooIO Gaming Kit, a real-time adaptable gaming...
Cooperatively Augmenting Smart Objects with Projector-Camera Systems (2006)
Molyneaux, David, Gellersen, Hans
In this paper we propose an object-centric method of augmenting mobile smart objects using projection onto the surface of the objects. We assume that the objects are both real world objects with an...
Fair Dice: A Tilt and Motion-Aware Cube with a Conscience. (2006)
Van Laerhoven, Kristof, Gellersen, Hans
As an example of sensory augmentation of a tiny object, a small cube-sized die is presented that perceives rolls and records what face it lands on. It is thus able to detect bias for unfair behaviour...
Long-Term Activity Monitoring with a Wearable Sensor Node (2006)
Laerhoven, Kristof Van, Gellersen, Hans, Malliaris, Yanni G.
This paper introduces an encapsulated sensor node that is devised to monitor and record motion patterns over long, quotidian periods of time with potential application in psychological studies. Its...
The VoodooIO gaming kit: a real-time adaptable gaming controller (2006)
Nicolas Villar, Kiel Mark Gilleade, Devina Ramduny-ellis, Hans Gellersen
Existing gaming controllers are limited in their end-user configurability. As a complement to current game control technology, we present the VoodooIO Gaming Kit, a real-time adaptable gaming...
The VoodooIO Gaming Kit: (2006)
Nicolas Villar, Kiel Mark Gilleade, Devina Ramduny-ellis, Hans Gellersen
Existing gaming controllers are limited in their end-user configurability. As a complement to current game control technology, we present the VoodooIO Gaming Kit, a real-time adaptable gaming...
An Authentication Protocol Using Ultrasonic Ranging (2006)
Rene Mayrhofer, Mike Hazas, Hans Gellersen
This report presents a method for establishing and securing spontaneous interactions on the basis of spatial references which are obtained by accurate sensing of relative device positions. Utilising...
Cooperative Artefacts - A Framework for Embedding Knowledge in Real World Objects (2005)
Strohbach, Martin, Kortuem, Gerd, Gellersen, Hans
Abstract. In this position paper we introduce Cooperative Artefacts, physical objects that embed sensing, communication, computation and actuation in physical objects. In contrast to many other...
Pin & Play & Perform: a rearrangeable interface for musical composition and performance (2005)
Villar, Nicolas, Lindsay, Adam, Gellersen, Hans
We present the Pin&Play&Perform system: an interface in the form of a tablet on which a number of physical controls can be added, removed and arranged on the fly. These controls can easily be mapped...
A Relative Positioning System For Co-Located Mobile Devices (2005)
Hazas, Mike, Kray, Christian, Gellersen, Hans, Agbota, Henoc, Kortuem, Gerd, Krohn, Albert
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
Sensing and visualizing spatial relations of mobile devices (2005)
Kortuem, Gerd, Kray, Christian, Gellersen, Hans
Location information can be used to enhance interaction with mobile devices. While many location systems require instrumentation of the environment, we present a system that allows devices to measure...
Describing Sensor Data For Pervasive Prototyping and Development (2005)
Van Laerhoven, Kristof, Gellersen, Hans, Berchtold, M.
It is currently extremely challenging to bridge the gap between the hardware configuration of sensor-based systems and algorithm implementation. When an algorithm on live sensor data needs to be...
Villar, Nicolas, Lindsay, Adam, Gellersen, Hans
We present the Pin&Play&Perform system: an interface in the form of a tablet on which a number of physical controls can be added, removed and arranged on the fly. These controls can easily be mapped...
A Relative Positioning System for Co-located Mobile Devices (2005)
Mike Hazas, Henoc Agbota, Christian Kray, Oliver Baecker, Hans Gellersen, Gerd Kortuem
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
Krohn, Albert, Beigl, Michael, Hazas, Mike, Gellersen, Hans
Knowledge of the fine-grained location and orientation of devices on a surface can be used to enhance the surface-based computing tasks of mobile users in the home and workplace. However, existing...
Expected, sensed, and desired: A framework for designing sensing-based interaction (2005)
Benford, Steve, Schnadelbach, Holger, Koleva, Boriana, Anastasi, Rob, Greenhalgh, Chris, Rodden, Tom, ...
Movements of interfaces can be analyzed in terms of whether they are expected, sensed, and desired. Expected movements are those that users naturally perform; sensed are those that can be measured by...
Accessing and Abstracting Sensor Data for Pervasive Prototyping and Development (2005)
Van Laerhoven, Kristof, Berchtold, Martin, Gellersen, Hans
It is currently extremely challenging to bridge the gap between the hardware configuration of sensor-based systems and algorithm implementation. When an algorithm on live sensor data needs to be...
A Relative Positioning System for Spatial Awareness of Co-located Mobile Devices and Users (2005)
Mike Hazas, Hans Gellersen, Christian Kray, Henoc Agbota, Gerd Kortuem, Albert Krohn
If a mobile computer knows how it is positioned and oriented in relation to other mobile devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
Sensing and Visualizing Spatial Relations of Mobile Devices (2005)
Gerd Kortuem, Christian Kray, Hans Gellersen
Location information can be used to enhance interaction with mobile devices. While many location systems require instrumentation of the environment, we present a system that allows devices to measure...
Expected, Sensed, and Desired: A Framework for Designing Sensing-Based Interaction (2005)
Steve Benford, Holger Schnädelbach, Boriana Koleva, Rob Anastasi, Chris Greenhalgh, Tom Rodden, ...
This article introduces a design framework for sensing-based interfaces in which designers are encouraged to compare expected physical movements with those that can be sensed by a computer system and...
A Relative Positioning System for Co-located Mobile Devices (2005)
Mike Hazas, Christian Kray, Hans Gellersen, Henoc Agbota, Gerd Kortuem, Albert Krohn
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
A relative positioning system for spatial awareness of co-located mobile devices and users (2005)
Mike Hazas, Hans Gellersen, Christian Kray, Henoc Agbota, Gerd Kortuem, Albert Krohn
If a mobile computing device knows how it is positioned and oriented in relation to other devices nearby, then it can provide enhanced support for multi-device and multi-user interactions. Existing...
Cooperative Artefacts - A Framework for Embedding Knowledge in Real World Objects (2005)
Martin Strohbach, Gerd Kortuem, Hans Gellersen
Abstract. In this position paper we introduce Cooperative Artefacts, physical objects that embed sensing, communication, computation and actuation in physical objects. In contrast to many other...
A Physical Notice Board with Digital Logic and Display (2004)
Villar, Nicolas, Van Laerhoven, Kristof, Gellersen, Hans
A physical notice board is augmented with digital capabilities to provide additional functionality. The notice board retains its form factor, and when used with interactive pins with controllable...
Spine versus Porcupine: a Study in Distributed Wearable Activity Recognition (2004)
Van Laerhoven, Kristof, Gellersen, Hans
This paper seeks to explore an alternative and more embedded-oriented approach to the recognition of a person’s motion and pose, using sensor types that can easily be distributed in clothing. A...
Using Cooperative Artefacts as a Basis for Activity Recognition (2004)
Strohbach, Martin, Kortuem, Gerd, Gellersen, Hans, Kray, Christian
Ambient intelligent applications require applications to recognise user activity calmly in the background, typically by instrumentation of environments. In contrast, we propose the concept of...
Cooperative Artefacts: Assessing Real World Situations with Embedded Technology (2004)
Strohbach, Martin, Gellersen, Hans, Kortuem, Gerd, Kray, Christian
Ubiquitous computing is giving rise to applications that interact very closely with activity in the real world, usually involving instrumentation of environments. In contrast, we propose Cooperative...
Physical prototyping with smart-its (2004)
Gellersen, Hans, Kortuem, Gerd, Schmidt, Albrecht, Beigl, Michael
Ubiquitous computing is characterized by a departure from general-purpose machines and standard user interface devices. Instead, it envisions integrating digital computationýs flexibility into...
Gellersen, Hans, Van Laerhoven, Kristof, Matthews, T., Dey, A.
Though the common conception of human-computer interfaces is one of screens and keyboards, the emergence of ubiquitous computing envisions interfaces that will spread from the desktop into our...
Issues in Recording Benchmark Sensor Data (2004)
Van Laerhoven, Kristof, Gellersen, Hans
Abstract. Sensors are rapidly following computing devices in popularity and widespread use; and as a result, protocols to interface, record and process sensor data have cropped up anywhere. This...
Building intelligent environments with smart-its (2004)
Holmquist, Lars Erik, Gellersen, Hans, Kortuem, Gerd, Schmidt, Albrecht, Strohbach, Martin, Antifakos, Stavros, ...
Smart-Its are self-contained, stick-on computers that attach to everyday objects. These augmented objects become soft media, enabling dynamic digital relationships with users and each other.
The drift table: designing for ludic engagement (2004)
Gaver, William W., Bowers, John, Boucher, Andrew, Gellersen, Hans, Pennington, Sarah, Schmidt, Albrecht, ...
The Drift Table is an electronic coffee table that displays slowly moving aerial photography controlled by the distribution of weight on its surface. It was designed to investigate our ideas about...
Towards a Playful User Interface for Home Entertainment Systems (2004)
Block, Florian, Schmidt, Albrecht, Villar, Nicolas, Gellersen, Hans
In this paper we propose a tangible cube as an input device for playfully changing between different TV-channels. First we consider several design approaches and compare them. Based on a cube that...
Multi-Level Sensory Interpretation and Adaptation in a Mobile Cube (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans
Abstract. Signals from sensors are often analyzed in a sequence of steps, starting with the raw sensor data and eventually ending up with a classification or abstraction of these data. This paper...
Towards a Wearable Inertial Sensor Network (2003)
Van Laerhoven, Kristof, Gellersen, Hans, Kern, Nicky, Schiele, Bernt
Abstract. Wearable inertial sensors have become an inexpensive option to measure the movements and positions of a person. Other techniques that use environmental sensors such as ultrasound trackers...
Pin & Mix: When Pins Become Interaction Components... (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans
This paper introduces a study into the realization of physical interaction components, based on a technology for providing network connectivity and power to small objects via a layered surface. Small...
Pin & Play: The Surface as Network Medium (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans, Schmidt, Albrecht, Hakansson, Maria, Holmquist, Lars Erik
Integrating appliances in the home through a wired network often proves to be impractical: routing cables is usually difficult, changing the network structure afterward even more so, and portable...
Interacting with Proactive Community Displays (2003)
Villar, Nicolas, Kortuem, Gerd, Gellersen, Hans, Schmidt, Albrecht
In this paper we describe the design and architecture of an adaptive proactive environment in which information, which reflects the communal interests of current inhabitants, is proactively displayed...
Using an Autonomous Cube for Basic Navigation and Input (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Kortuem, Gerd, Gellersen, Hans, Schmidt, Albrecht
This paper presents a low-cost and practical approach to achieve basic input using a tactile cube-shaped object, augmented with a set of sensors, processor, batteries and wireless communication. The...
A Layered Approach to Wearable Textile Networks (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans
The integration of digital components into clothing is becoming an increasingly important segment in wearable computing research. The first indications for this trend are the incorporation of...
Multi-Level Sensory Interpretation and Adaptation in a Mobile Cube (2003)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans
Signals from sensors are often analyzed in a sequence of steps, starting with the raw sensor data and eventually ending up with a classification or abstraction of these data. This paper will give a...
Using an Autonomous Cube for Basic Navigation and Input (2003)
Kristof Van Laerhoven, Nicolas Villar, Albrecht Schmidt, Gerd Kortuem, Hans Gellersen
This paper presents a low-cost and practical approach to achieve basic input using a tactile cube-shaped object, augmented with a set of sensors, processor, batteries and wireless communication. The...
Multi-Sensor Context-Awareness in Mobile Devices and Smart Artefacts (2002)
Gellersen, Hans, Schmidt, Albrecht, Beigl, Michael
The use of context in mobile devices is receiving increasing attention in mobile and ubiquitous computing research. In this article we consider how to augment mobile devices with awareness of their...
Multi-Sensor Context-Aware Clothing (2002)
Van Laerhoven, Kristof, Gellersen, Hans, Schmidt, Albrecht
Inspired by perception in biological systems,distribution of a massive amount of simple sensingdevices is gaining more support in detectionapplications. A focus on fusion of sensor signals insteadof...
Pin & Play: Bringing Power and Networking to Wall-Mounted Appliances (2002)
Van Laerhoven, Kristof, Villar, Nicolas, Gellersen, Hans, Hakansson, Maria
The classic obstacles in the digital augmentation of everyday objects and appliances are usually situated around batteries, communication, size, and weight. Wired communication is often not possible,...
Smart Clustering - Networking Smart Objects Based On Their Physical Relationships (2002)
Strohbach, Martin, Gellersen, Hans
We propose a new concept that facilitates networking of smart objects by creating topologies that reflect the physical environment. As the objects are clustered according to their physical...
Context Acquisition Based on Load Sensing (2002)
Schmidt, Albrecht, Strohbach, Martin, Van Laerhoven, Kristof, Friday, Adrian, Gellersen, Hans
Load sensing is a mature and robust technology widely applied in process control. In this paper we consider the use of load sensing in everyday environments as an approach to acquisition of...
Pin & Play: Networking Objects through Pins (2002)
Van Laerhoven, Kristof, Gellersen, Hans, Schmidt, Albrecht
We introduce a new concept of networking objects in everyday environments. The basic idea is to build on the familiar use of surfaces such as walls and boards for attachment of mundane objects such...
Context Awareness in Systems with Limited Resources (2002)
Van Laerhoven, Kristof, Gellersen, Hans, Cakmakci, Ozan, Coutaz, Joelle
Mobile embedded systems often have strong limitations regarding available resources. In this paper we propose a statistical approach which could scale down to microcontrollers with scarce resources,...
Beyond Prototypes: Challenges in Deploying Ubiquitous Systems (2002)
Davies, Nigel, Gellersen, Hans
The authors discuss the problems in creating the next generation of widely deployed ubiquitous computing systems and articulate current technical and sociological challenges to inspire researchers in...
Ubiquitous Interaction - Using Surfaces in Everyday Environments as Pointing Devices (2002)
Strohbach, Martin, Van Laerhoven, Kristof, Gellersen, Hans, Schmidt, Albrecht
Abstract. To augment everyday environments as interface to computing may lead to more accessible and inclusive user interfaces, exploiting affordances existing in the physical world for interaction...
Look Who's Visiting: Supporting Awareness for Visitors in the Web (2002)
Gellersen, Hans, Schmidt, Albrecht
Individuals, groups and organizations host places in the World Wide Web to attract visitors, but once they have established a web presence they usually maintain little or no awareness of visiting...
Mobile ad hoc collaboration (2002)
Kortuem, Gerd, Gellersen, Hans, Billinghurst, Mark
The combination of personal mobile devices and mobile adhoc networks creates opportunities for new forms of mobile collaboration involving interaction between people who are co-located and organized...
Mobile ad hoc collaboration (2002)
Kortuem, Gerd, Gellersen, Hans, Billinghurst, Mark
The combination of personal mobile devices and mobile adhoc networks creates opportunities for new forms of mobile collaboration involving interaction between people who are co-located and organized...
Holmquist, Lars Erik, Mattern, Friedemann, Schiele, Bernt, Alahuhta, Petteri, Beigl, Michael, Gellersen, Hans
Abstract. Ubiquitous computing is associated with a vision of everything being connected to everything. However, for successful applications to emerge, it will not be the quantity but the quality and...
Context-phonebook extending mobile phone applications with context (2001)
Schmidt, Albrecht, Gellersen, Hans, Stuhr, Tanjev
Today people use mobile phones to make calls and to receive calls anytime and anywhere. This gives the user a lot of freedom but also introduces that the phone can interrupt the user always and...
Visitor Awareness in the Web (2001)
Gellersen, Hans, Schmidt, Albrecht
The World-Wide Web constitutes an activity space in which people set up and host places that are visited by others. To render web places such as homes, sites, and portals attractive for visitors has...
Mediacups: Experience with Design and Use of Computer-Augmented Everyday Artefacts (2001)
Gellersen, Hans, Beigl, Michael, Schmidt, Albrecht
Our view of ubiquitous computing is artefact-centred: in this view, computers are considered as secondary artefacts that enable items of everyday use as networked digital artefacts. This view is...
Nutzung von Kontext in ubiquitaeren Informationssystemen (2001)
Gellersen, Hans, Schmidt, Albrecht
In diesem Beitrag wird Kontextnutzung als eine wesentliche Entwicklung im Bereich ubiquitaerer Informationssysteme eingeführt. Es wird ein Modell und eine Klassifikation für interaktive...
Gellersen, Hans, Thomas, Peter
The technology space that includes ubiquitous computing, information appliances, and pervasive and situated systems is the subject of intense interest among the research community. In this article,...
Where Computation and Artefacts Meet (2001)
his article reflects on the wider context this imposes on the study of computing systems, and provides an overview of research on how computation may relate to physical artefacts
Modell, Architektur und Plattform fur Informationssystems mit Kontextbezug (2001)
In mobilen Systemen findet Kontext zunehmend Berücksichtigung, um Komponenten mit Informationen zur umgebenden Situation auszustatten. Dieser Beitrag führt ein neues semantisches Modell und eine...
Context-phonebook – extending mobile phone applications with context (2001)
Albrecht Schmidt, Tanjev Stuhr, Hans Gellersen
Abstract. Today people use mobile phones to make calls and to receive calls anytime and anywhere. This gives the user a lot of freedom but also introduces that the phone can interrupt the user always...
Adding Some Smartness to Devices and Everyday Things (2000)
Gellersen, Hans, Schmidt, Albrecht, Beigl, Michael
In mobile computing, context-awareness indicates the ability of a system to obtain and use information on aspects of the system environment. To implement context-awareness, mobile system components...
Look Who's Visiting Supporting Visitor Awareness in the Web (2000)
Gellersen, Hans, Schmidt, Albrecht
Individuals, groups and organizations host places in the World Wide Web to attract visitors, but once they have established a web presence they usually maintain little or no awareness of visiting...
Developing User Interfaces for Wearable Computers: Don't Stop to Point and Click (2000)
Gellersen, Hans, Schmidt, Albrecht, Beigl, Michael, Thate, O.
Typical usage scenarios for wearable computers are support of users doing a certain task, e.g. aircraft repair or military applications. If the user is moving while using the wearable some...
Enabling Implicit Human Computer Interaction: A Wearable RFID-Tag Reader (2000)
Gellersen, Hans, Schmidt, Albrecht, Merz, Christian
Implicit human computer interaction is based on the concept of using user activity in the real world as input to computers. Implicit HCI can help to reduce the problem of user input to wearable...
Sensor-Based Context-Awareness for Situated Computing (2000)
Gellersen, Hans, Beigl, Michael, Schmidt, Albrecht
It can be argued that pervasive access to information and services becomes more valuable when they are related and adapted to the real world situations of their use. We discuss sensor-based...
WCML Paving the Way for Reuse on Object-Oriented Web Engineering (2000)
Gellersen, Hans, Gaedke, M., Segor, C.
Since 1990 the Web has changed from a distributed hypertext system to an efficient environment for application delivery. Due to the legacy of the Web implementation model the development, management,...
Adaptation in a Ubiquitous Computing Management Architecture (2000)
The vision of Ubiquitous Computing requires an infrastructure for heterogeneous communicating appliances. We introduce an architecture for the management of ubiquitous computing environments that...