QACA: Quality assured context acquisition in context-aware computing
Previous research work in context quality primarily focuses on identifying and modeling it. However, assuring context quality is no less challenging than modeling it. Difficulties lie in acquiring high-quality context from the context providers whose quality and availability can not be guaranteed. I...
| Main Authors: | , , |
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| Format: | Journal Article |
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AICIT
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/35176 |
| _version_ | 1848754424483151872 |
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| author | Li, Y. Feng, L. Dillon, Tharam |
| author_facet | Li, Y. Feng, L. Dillon, Tharam |
| author_sort | Li, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Previous research work in context quality primarily focuses on identifying and modeling it. However, assuring context quality is no less challenging than modeling it. Difficulties lie in acquiring high-quality context from the context providers whose quality and availability can not be guaranteed. In this paper, we propose a context quality assurance strategy QACA based on the least square error, by leveraging the redundancy of context providers. In this strategy, redundant imprecise and unstable context providers are used to constitute a more precise and stable context provision. Such a strategy provides a theoretical basis to implement a specification based context acquisition middleware. |
| first_indexed | 2025-11-14T08:40:11Z |
| format | Journal Article |
| id | curtin-20.500.11937-35176 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:40:11Z |
| publishDate | 2011 |
| publisher | AICIT |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-351762017-03-08T13:13:31Z QACA: Quality assured context acquisition in context-aware computing Li, Y. Feng, L. Dillon, Tharam context quality context acquisition uncertain context Previous research work in context quality primarily focuses on identifying and modeling it. However, assuring context quality is no less challenging than modeling it. Difficulties lie in acquiring high-quality context from the context providers whose quality and availability can not be guaranteed. In this paper, we propose a context quality assurance strategy QACA based on the least square error, by leveraging the redundancy of context providers. In this strategy, redundant imprecise and unstable context providers are used to constitute a more precise and stable context provision. Such a strategy provides a theoretical basis to implement a specification based context acquisition middleware. 2011 Journal Article http://hdl.handle.net/20.500.11937/35176 AICIT restricted |
| spellingShingle | context quality context acquisition uncertain context Li, Y. Feng, L. Dillon, Tharam QACA: Quality assured context acquisition in context-aware computing |
| title | QACA: Quality assured context acquisition in context-aware computing |
| title_full | QACA: Quality assured context acquisition in context-aware computing |
| title_fullStr | QACA: Quality assured context acquisition in context-aware computing |
| title_full_unstemmed | QACA: Quality assured context acquisition in context-aware computing |
| title_short | QACA: Quality assured context acquisition in context-aware computing |
| title_sort | qaca: quality assured context acquisition in context-aware computing |
| topic | context quality context acquisition uncertain context |
| url | http://hdl.handle.net/20.500.11937/35176 |