A layered framework supporting personal information integration and application design for the semantic desktop |
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Authors: | Isabel F Cruz Huiyong Xiao |
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Affiliation: | (1) Department of Computer Science, University of Illinois at Chicago, Chicago, IL, USA |
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Abstract: | With the development of inexpensive storage devices, space usage is no longer a bottleneck for computer users. However, the
increasingly large amount of personal information poses a critical problem to those users: traditional file organization in
hierarchical directories may not be suited to the effective management of personal information because it ignores the semantic
associations therein and bears no connection with the applications that users will run. To address such limitations, we present
our vision of a semantic desktop, which relies on the use of ontologies to annotate and organize data and on the concept of personal information application (PIA), which is associated with a user’s task. The PIA designer is the tool that is provided for building a variety of PIAs consisting of views (e.g., text, list, table, graph), which are
spatially arranged and display interrelated fragments of the overall personal information. The semantic organization of the
data follows a layered architecture that models separately the personal information, the domain data, and the application
data. The network of concepts that ensues from extensive annotation and explicit associations lends itself well to rich browsing
capabilities and to the formulation of expressive database-like queries. These queries are also the basis for the interaction
among views of the PIAs in the same desktop or in networked desktops. In the latter case, the concept of desktop service provides
for a semantic platform for the integration of information across different desktops and the web. In this paper, we present
in detail the semantic organization of the information, the overall system architecture and implementation aspects, queries
and their processing, PIAs and the PIA designer, including usability studies on the designer, and the concepts of semantic
navigation in a desktop and of interoperation in a network of desktops.
This work was partially supported by NSF Awards ITR IIS-0326284 and IIS-0513553. A preliminary version of this paper was presented
at the First International Workshop on the Semantic Desktop—Next Generation Personal Information Management and Collaboration
Infrastructure, Galway, Ireland, November 2005 (in association with the International Semantic Web Conference): “A Multi-Ontology
Approach for Personal Information Management,” by Huiyong Xiao and Isabel F. Cruz. |
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