36247121
Navigating in hyperspace: designing a structure-based toolbox
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Structural analysis of hypertexts: identifying hierarchies and useful metrics
Hypertext users often suffer from the “lost in hyperspace” problem: disorientation from too many jumps while traversing a complex network. One solution to this problem is improved authoring to create more comprehensible structures. This paper proposes several authoring tools, based on hypertext structure analysis.
In many hypertext systems authors are encouraged to create hierarchical structures, but when writing, the hierarchy is lost because of the inclusion of cross-reference links. The first part of this paper looks at ways of recovering lost hierarchies and finding new ones, offering authors different views of the same hypertext. The second part helps authors by identifying properties of the hypertext document. Multiple metrics are developed including compactness and stratum. Compactness indicates the intrinsic connectedness of the hypertext, and stratum reveals to what degree the hypertext is organized so that some nodes must be read before others.
Several existing hypertexts are used to illustrate the benefits of each technique. The collection of techniques provides a multifaceted view of the hypertext, which should allow authors to reduce undesired structural complexity and create documents that readers can traverse more easily.
12355336
Direct annotation: a drag-and-drop strategy for labeling photos
Annotating photographs is such a time-consuming, tedious and error-prone data entry task that it discourages most owners of personal photo libraries. By allowing the user to drag labels, such as personal names, from a scrolling list and drop them onto a photo, we believe we can make the task faster, easier and more appealing. Since the names are entered in a database, searching for all photos of a friend or family member is dramatically simplified. We describe the user interface design and the database schema to support direct annotation, as implemented in our PhotoFinder prototype.
7612211
Evaluating three museum installations of a hypertext system
Evaluation de l'utilisation d'un systeme hypertext «Hyperties» par les clients de musees. Ce systeme presente chacun de ses articles sur un ecran ou des informations sont soulignees et que le visiteur peut selectionner en les touchant. Il semble qu'une presentation hierarchisee des termes ameliorerait encore la recherche. (INTD)