ARES: a relational database with the capability of performing flexible interpretation of queries
IEEE Transactions on Software Engineering
VAGUE: a user interface to relational databases that permits vague queries
ACM Transactions on Information Systems (TOIS)
CoBase: a scalable and extensible cooperative information system
Journal of Intelligent Information Systems - Special issue on intelligent integration of information
Complexity of answering queries using materialized views
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
A visual object-relationship query language for user-database interaction
Telematics and Informatics
A Structured Approach for Cooperative Query Answering
IEEE Transactions on Knowledge and Data Engineering
Cooperative Answering through Controlled Query Relaxation
IEEE Expert: Intelligent Systems and Their Applications
APPROXIMATE: A Query Processor that Produces Monotonically Improving Approximate Answers
IEEE Transactions on Knowledge and Data Engineering
Web services and data integration
WISE '02 Proceedings of the 3rd International Conference on Web Information Systems Engineering
A Multi-Agent Architecture for Cooperative Query Answering
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Dynamic sample selection for approximate query processing
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Entropy Based Approximate Querying and Exploration of Datacubes
SSDBM '01 Proceedings of the 13th International Conference on Scientific and Statistical Database Management
ICWS '04 Proceedings of the IEEE International Conference on Web Services
Machine learning for online query relaxation
Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining
Behaviour & Information Technology
Personalized Location-Based Recommendation Services for Tour Planning in Mobile Tourism Applications
EC-Web 2009 Proceedings of the 10th International Conference on E-Commerce and Web Technologies
User-Centric Similarity and Proximity Measures for Spatial Personalization
International Journal of Data Warehousing and Mining
| Hi-index | 12.05 |
Location-aware computing technology becomes promising for pervasive personalization services which run anytime, anywhere, and on any device. These services should be based on contextual queries that are provided in a fast and flexible manner. To do so, cooperative query answering may be useful to support query relaxation and to provide both approximate matches as well as exact matches. To facilitate query relaxation, a knowledge representation framework has been widely adopted which accommodates semantic relationships or distance metrics to represent similarities among data values. However, research shows few legacy cooperative query mechanisms that consider location-awareness. Hence, the purpose of this paper is to propose a securely personalized location-aware cooperative query that supports conceptual distance metric among data values, while considering privacy concerns around user context awareness. To show the feasibility of the methodology proposed in this paper, we have implemented a prototype system, LACO, in the area of site search in an actual large-scale shopping mall.