TY - GEN
T1 - Data quality aware queries in collaborative information systems
AU - Yeganeh, N. K.
AU - Sadiq, S.
AU - Deng, K.
AU - Zhou, X.
PY - 2009
Y1 - 2009
N2 - The issue of data quality is gaining importance as individuals as well as corporations are increasingly relying on multiple, often external sources of data to make decisions. Traditional query systems do not factor in data quality considerations in their response. Studies into the diverse interpretations of data quality indicate that fitness for use is a fundamental criteria in the evaluation of data quality. In this paper, we present a 4 step methodology that includes user preferences for data quality in the response of queries from multiple sources. User preferences are modelled using the notion of preference hierarchies. We have developed an SQL extension to facilitate the specification of preference hierarchies. Further, we will demonstrate through experimentation how our approach produces an improved result in query response.
AB - The issue of data quality is gaining importance as individuals as well as corporations are increasingly relying on multiple, often external sources of data to make decisions. Traditional query systems do not factor in data quality considerations in their response. Studies into the diverse interpretations of data quality indicate that fitness for use is a fundamental criteria in the evaluation of data quality. In this paper, we present a 4 step methodology that includes user preferences for data quality in the response of queries from multiple sources. User preferences are modelled using the notion of preference hierarchies. We have developed an SQL extension to facilitate the specification of preference hierarchies. Further, we will demonstrate through experimentation how our approach produces an improved result in query response.
UR - https://openalex.org/W1576823096
UR - https://www.scopus.com/pages/publications/67649962240
U2 - 10.1007/978-3-642-00672-2_6
DO - 10.1007/978-3-642-00672-2_6
M3 - Conference Paper published in a book
SN - 9783642006715
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 39
EP - 50
BT - Advances in Data and Web Management - Joint International Conferences, APWeb/WAIM 2009, Proceedings
PB - Springer Verlag
T2 - Joint International Conference on Advances in Data and Web Management, APWeb/WAIM 2009
Y2 - 2 April 2009 through 4 April 2009
ER -