The combination of traditional teaching and Web-based teaching, so called blended learning, is a ... more The combination of traditional teaching and Web-based teaching, so called blended learning, is a challenge to the teachers as well as to the students. This shift in teaching demands an openness and flexibility from the technical platform which has not been found in the existing tools. Therefore, University of Aarhus has developed a CourseWeb system, which is an open configurable Web portal where the teachers are able to control courses and integrate facilities from third-part Web-based systems. At the same ...
This paper addresses the problem of organizing material in mixed digital and physical environment... more This paper addresses the problem of organizing material in mixed digital and physical environments. It presents empirical examples of how people use collectional artefacts and organize physical material such as paper, samples, models, mock-ups, plans, etc. in the real world. Based on this material, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented
New Review of Hypermedia and Multimedia / Hypermedia, 2003
This paper introduces the notion of physical hypermedia, addressing the problem of organizing mat... more This paper introduces the notion of physical hypermedia, addressing the problem of organizing material in mixed digital and physical environments. Based on empirical studies, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented reality and hypermedia to support organization of mixtures of digital and physical materials. Our prototype of a physical hypermedia system is running on an augmented architect's desk and digital walls utilizing Radio Frequency Identifier (RFID) tags as well as visual tags tracked by cameras. It allows users to tag physical materials, and have these tracked by readers (antennas) that may become pervasive in our work environments. In the physical hypermedia system, we work with three categories of RFID tags: simple object tags, collectional tags, and tooltags invoking operations such as grouping and linking of physical material. In addition, we utilize visual ARToolKit tags for linking and navigating 3D models on a physical desk. Our primary application domain is architecture and design, and so we discuss the use of augmented collectional artifacts primarily for this domain.
IFIP — The International Federation for Information Processing, 2007
Abstract. . A range of research has pointed to empirical studies of the use of domestic materials... more Abstract. . A range of research has pointed to empirical studies of the use of domestic materials as a useful insight when designing future interactive systems for homes. In this paper we describe how we designed a system from the basis of lessons from such studies. Our system ...
This article presents methods and tools for producing location-based Mobile Urban Dramas. In a Mo... more This article presents methods and tools for producing location-based Mobile Urban Dramas. In a Mobile Urban Drama, the user becomes the main character in a play that is presented as a multimedia production (through audio, images, animations and videos) on the user's mobile phone and in the physical surroundings. The media files are linked via tags (2D barcodes/RFID) or GPS
Proceedings of the fourteenth ACM conference on Hypertext and hypermedia - HYPERTEXT '03, 2003
This paper addresses the problem of organizing material in mixed digital and physical environment... more This paper addresses the problem of organizing material in mixed digital and physical environments. It presents empirical examples of how people use collectional artefacts and organize physical material such as paper, samples, models, mock-ups, plans, etc. in the real world. Based on this material, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented
Increased renewable electricity production, coupled with emerging sectors of electricity consumpt... more Increased renewable electricity production, coupled with emerging sectors of electricity consumption such as electric vehicles, has led to the desire to shift the times of the day electricity is consumed to better match generation. Different methods have been proposed to shift residential electricity use from the less desirable times to more desirable times, including: feedback technology, pricing incentives, smart appliances, and energy storage. Based on our experience in this area, we present three challenges for residential shifting: getting users to understand the concept of shifting, determining when to shift and communicating that to users, and accounting for the dynamic nature of shifting. We argue that encouraging residential electricity shifting is much more challenging than electricity curtailment, and suggest an increased focus on understanding the everyday practices of users, which are crucial in order to shift electricity use.
The combination of traditional teaching and Web-based teaching, so called blended learning, is a ... more The combination of traditional teaching and Web-based teaching, so called blended learning, is a challenge to the teachers as well as to the students. This shift in teaching demands an openness and flexibility from the technical platform which has not been found in the existing tools. Therefore, University of Aarhus has developed a CourseWeb system, which is an open configurable Web portal where the teachers are able to control courses and integrate facilities from third-part Web-based systems. At the same ...
This paper addresses the problem of organizing material in mixed digital and physical environment... more This paper addresses the problem of organizing material in mixed digital and physical environments. It presents empirical examples of how people use collectional artefacts and organize physical material such as paper, samples, models, mock-ups, plans, etc. in the real world. Based on this material, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented
New Review of Hypermedia and Multimedia / Hypermedia, 2003
This paper introduces the notion of physical hypermedia, addressing the problem of organizing mat... more This paper introduces the notion of physical hypermedia, addressing the problem of organizing material in mixed digital and physical environments. Based on empirical studies, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented reality and hypermedia to support organization of mixtures of digital and physical materials. Our prototype of a physical hypermedia system is running on an augmented architect's desk and digital walls utilizing Radio Frequency Identifier (RFID) tags as well as visual tags tracked by cameras. It allows users to tag physical materials, and have these tracked by readers (antennas) that may become pervasive in our work environments. In the physical hypermedia system, we work with three categories of RFID tags: simple object tags, collectional tags, and tooltags invoking operations such as grouping and linking of physical material. In addition, we utilize visual ARToolKit tags for linking and navigating 3D models on a physical desk. Our primary application domain is architecture and design, and so we discuss the use of augmented collectional artifacts primarily for this domain.
IFIP — The International Federation for Information Processing, 2007
Abstract. . A range of research has pointed to empirical studies of the use of domestic materials... more Abstract. . A range of research has pointed to empirical studies of the use of domestic materials as a useful insight when designing future interactive systems for homes. In this paper we describe how we designed a system from the basis of lessons from such studies. Our system ...
This article presents methods and tools for producing location-based Mobile Urban Dramas. In a Mo... more This article presents methods and tools for producing location-based Mobile Urban Dramas. In a Mobile Urban Drama, the user becomes the main character in a play that is presented as a multimedia production (through audio, images, animations and videos) on the user's mobile phone and in the physical surroundings. The media files are linked via tags (2D barcodes/RFID) or GPS
Proceedings of the fourteenth ACM conference on Hypertext and hypermedia - HYPERTEXT '03, 2003
This paper addresses the problem of organizing material in mixed digital and physical environment... more This paper addresses the problem of organizing material in mixed digital and physical environments. It presents empirical examples of how people use collectional artefacts and organize physical material such as paper, samples, models, mock-ups, plans, etc. in the real world. Based on this material, we propose concepts for collectional actions and meta-data actions, and present prototypes combining principles from augmented
Increased renewable electricity production, coupled with emerging sectors of electricity consumpt... more Increased renewable electricity production, coupled with emerging sectors of electricity consumption such as electric vehicles, has led to the desire to shift the times of the day electricity is consumed to better match generation. Different methods have been proposed to shift residential electricity use from the less desirable times to more desirable times, including: feedback technology, pricing incentives, smart appliances, and energy storage. Based on our experience in this area, we present three challenges for residential shifting: getting users to understand the concept of shifting, determining when to shift and communicating that to users, and accounting for the dynamic nature of shifting. We argue that encouraging residential electricity shifting is much more challenging than electricity curtailment, and suggest an increased focus on understanding the everyday practices of users, which are crucial in order to shift electricity use.
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Papers by Kaj Grønbæk