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Given time and location information about digital photographs we can automatically generate an abundance of related contextual metadata, using off-the-shelf and Web-based data sources. Among these are the local daylight status and weather conditions at the time and place a photo was taken. This metadata has the potential of serving as memory cues and(More)
In this thriving world of mobile communications, the difficulty of communication is no longer contacting someone (the receiver), but rather contacting them in a socially appropriate manner. Ideally, senders should have some understanding of a receiver's availability in order to make contact at the right time, in the right contexts, and with the optimal(More)
We examined the strengths and weaknesses of three diverse scroll control modalities for photo browsing on personal digital assistants (PDAs). This exploration covered nine alternatives in a design space that consisted of three visual interfaces and three control modalities. The three interfaces were a traditional thumbnail layout, a layout that placed a(More)
In a balanced between-participants experiment (N = 96) American and Swedish participants listened to tourist information on a website about an American or Swedish city presented in English with either an American or Swedish accent and evaluated the speakers' knowledge of the topic, the voice characteristics, and the information characteristics. Users(More)
We developed two browsers to support large personal photo collections on PDAs. Our first browser is based on a traditional, folder-based layout that utilizes either the user's manually created organization structure, or a system-generated structure. Our second browser uses a novel interface that is based on a vertical, zoomable timeline. This timeline(More)
We developed two browsers to support large photo collections on PDAs. Our first browser uses a traditional, folder-based layout that utilizes either the user's manually created organization structure, or a system-generated structure. Our second browser uses a novel interface that is based on a vertical, zoomable timeline. This Timeline browser does not(More)
In this paper, we present a study concerning psychological ownership for digital entities in the context of collaborative working environments. In the first part of the paper we present a conceptual framework of ownership: various issues such as definition, effects, target factors and behavioral manifestation are explicated. We then focus on ownership(More)
We evaluate two novel applications for browsing personal collections of geo-referenced digital photographs. The first, PhotoCompas, is a browser that employs no graphical user interface elements other than the photos themselves (tex-tual browser). PhotoCompas was developed in our project, and is based on an automated organization of the respective photo(More)