Sequence mining in categorical domains: incorporating constraints
Proceedings of the ninth international conference on Information and knowledge management
SPADE: an efficient algorithm for mining frequent sequences
Machine Learning
Mining Sequential Patterns: Generalizations and Performance Improvements
EDBT '96 Proceedings of the 5th International Conference on Extending Database Technology: Advances in Database Technology
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
MavHome: An Agent-Based Smart Home
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
Automatic discovery of relationships across multiple network layers
Proceedings of the 2007 SIGCOMM workshop on Internet network management
An intervention mechanism for assistive living in smart homes
Journal of Ambient Intelligence and Smart Environments
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There is considerable body of work on sequence mining of transactional data. Most of the related work on point data (not significant intervals) makes several passes over the entire dataset in order to discover frequently occurring (sequential) patterns. But Hybrid apriori, proposed in this paper, as the name implies is an apriori-class of mining algorithm in SQL and takes a different approach. Significant intervals for each event (or device) is computed first and used for detecting frequent event patterns. The advantages of this approach are that the data set is compressed to find significant intervals thereby reducing the size of input used. Also, each event/device is processed individually allowing for parallel computation of individual events. Then the hybrid apriori algorithm works on the significant intervals using an apriori-style algorithm adapted to intervals. Our approach has significant advantages over the traditional mining algorithms in terms of its efficiency, scalability and storage requirements.