The Open UniversitySkip to content

Mobile situation spaces

Dietze, Stefan; Gugliotta, Alessio and Domingue, John (2008). Mobile situation spaces. In: International Workshop on the Role of Services, Ontologies, and Context in Mobile Environments (RoSOC-M '08) at The 9th International Conference on Mobile Data Management (MDM'08), 27 Apr 2008, Beijing, China.

Full text available as:
[img] HTML (Version of Record)
Download (298B)
Google Scholar: Look up in Google Scholar


Context-aware information systems are highly desired, particularly in highly dynamic mobile environments. Semantic Web Services (SWS) address context-adaptation by enabling the automatic discovery of distributed Web services based on comprehensive semantic capability descriptions. However, whereas SWS technology supports the allocation of resources, it does not entail the discovery of appropriate SWS representations for a given situational context. Even though the appropriateness of resources in mobile settings is strongly dependent on the current situation, SWS technology does not explicitly encourage the representation of situational contexts. Moreover, describing the complex notion of a specific situation by utilizing symbolic SWS representation facilities is costly, prone to ambiguity issues and may never reach semantic completeness. Moreover, since not any real-world situation completely equals another, a potentially infinite set of situation parameters has to be matched to a finite set of semantically defined SWS resource descriptions to enable context-adaptability. To overcome these issues, we propose Mobile Situation Spaces (MSS) which enable the description of situation characteristics as members in geometrical vector spaces following the idea of Conceptual Spaces (CS). Semantic similarity between situational contexts is calculated in terms of their Euclidean distance within a MSS. Extending merely symbolic SWS descriptions with context information on a conceptual level through MSS enables similarity-based matchmaking between real-world situation characteristics and predefined resource representations as part of SWS descriptions. To prove the feasibility, we provide a proof-of-concept prototype which applies MSS to support contextadaptation across distinct mobile situations.

Item Type: Conference or Workshop Item
Copyright Holders: 2008 The Authors
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Knowledge Media Institute (KMi)
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Centre for Research in Computing (CRC)
Item ID: 23037
Depositing User: Kay Dave
Date Deposited: 20 Sep 2010 13:49
Last Modified: 14 Jan 2019 11:44
Share this page:

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU