TY - GEN
T1 - A context quality model to support transparent reasoning with uncertain context
AU - McKeever, Susan
AU - Ye, Juan
AU - Coyle, Lorcan
AU - Dobson, Simon
PY - 2009
Y1 - 2009
N2 - Much research on context quality in context-aware systems divides into two strands: (1) the qualitative identification of quality measures and (2) the use of uncertain reasoning techniques. In this paper, we combine these two strands, exploring the problem of how to identify and propagate quality through the different context layers in order to support the context reasoning process. We present a generalised, structured context quality model that supports aggregation of quality from sensor up to situation level. Our model supports reasoning processes that explicitly aggregate context quality, by enabling the identification and quantification of appropriate quality parameters. We demonstrate the efficacy of our model using an experimental sensor data set, gaining a significant improvement in situation recognition for our voting based reasoning algorithm.
AB - Much research on context quality in context-aware systems divides into two strands: (1) the qualitative identification of quality measures and (2) the use of uncertain reasoning techniques. In this paper, we combine these two strands, exploring the problem of how to identify and propagate quality through the different context layers in order to support the context reasoning process. We present a generalised, structured context quality model that supports aggregation of quality from sensor up to situation level. Our model supports reasoning processes that explicitly aggregate context quality, by enabling the identification and quantification of appropriate quality parameters. We demonstrate the efficacy of our model using an experimental sensor data set, gaining a significant improvement in situation recognition for our voting based reasoning algorithm.
UR - http://www.scopus.com/inward/record.url?scp=70549097304&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-04559-2_6
DO - 10.1007/978-3-642-04559-2_6
M3 - Conference contribution
AN - SCOPUS:70549097304
SN - 3642045588
SN - 9783642045585
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 65
EP - 75
BT - Quality of Context - First International Workshop, QuaCon 2009, Revised Papers
T2 - 1st International Workshop on Quality of Context, QuaCon 2009
Y2 - 25 June 2009 through 26 June 2009
ER -