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A Mean-Variance Based Index for Dynamic Context Data Lookup

Sen, Shubhabrata LU and Pung, Hung Keng (2012) Eighth Annual International Conference on Mobile and Ubiquitous Systems:Computing, Networking and Services (MobiQuitous 2011) In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 104. p.101-112
Abstract
A primary functionality of context aware applications is the retrieval of different types of context data from various context sources and adapting their behavior accordingly. In order to facilitate context aware application development, a context aware middleware must provide an effective context data management and lookup strategy. The use of a traditional index for indexing dynamic context data is not feasible due to the high update overhead. In this paper, we propose a context data indexing mechanism that utilizes the statistical properties of data viz. the mean and variance to cluster similar data values together and minimizes the need for frequent index updates. Experimental results indicate that the performance of the proposed index... (More)
A primary functionality of context aware applications is the retrieval of different types of context data from various context sources and adapting their behavior accordingly. In order to facilitate context aware application development, a context aware middleware must provide an effective context data management and lookup strategy. The use of a traditional index for indexing dynamic context data is not feasible due to the high update overhead. In this paper, we propose a context data indexing mechanism that utilizes the statistical properties of data viz. the mean and variance to cluster similar data values together and minimizes the need for frequent index updates. Experimental results indicate that the performance of the proposed index structure is satisfactory with respect to the query response time and query accuracy together with a low maintenance overhead. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Context-awareness, Dynamic data, Context data management, Context Lookup
in
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
volume
104
pages
101 - 112
publisher
Springer
conference name
Eighth Annual International Conference on Mobile and Ubiquitous Systems:Computing, Networking and Services (MobiQuitous 2011)
external identifiers
  • scopus:84869598495
ISSN
1867-8211
ISBN
978-3-642-30973-1
DOI
10.1007/978-3-642-30973-1_9
language
English
LU publication?
no
id
26eea763-e57c-4723-abe1-8e156e6d4203 (old id 7990473)
date added to LUP
2015-09-24 14:30:52
date last changed
2017-01-01 05:56:52
@inproceedings{26eea763-e57c-4723-abe1-8e156e6d4203,
  abstract     = {A primary functionality of context aware applications is the retrieval of different types of context data from various context sources and adapting their behavior accordingly. In order to facilitate context aware application development, a context aware middleware must provide an effective context data management and lookup strategy. The use of a traditional index for indexing dynamic context data is not feasible due to the high update overhead. In this paper, we propose a context data indexing mechanism that utilizes the statistical properties of data viz. the mean and variance to cluster similar data values together and minimizes the need for frequent index updates. Experimental results indicate that the performance of the proposed index structure is satisfactory with respect to the query response time and query accuracy together with a low maintenance overhead.},
  author       = {Sen, Shubhabrata and Pung, Hung Keng},
  booktitle    = {Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering},
  isbn         = {978-3-642-30973-1},
  issn         = {1867-8211},
  keyword      = {Context-awareness,Dynamic data,Context data management,Context Lookup},
  language     = {eng},
  pages        = {101--112},
  publisher    = {Springer},
  title        = {A Mean-Variance Based Index for Dynamic Context Data Lookup},
  url          = {http://dx.doi.org/10.1007/978-3-642-30973-1_9},
  volume       = {104},
  year         = {2012},
}