A Classification Approach for Prediction of Target Events in Temporal Sequences
PKDD '02 Proceedings of the 6th European Conference on Principles of Data Mining and Knowledge Discovery
Predicting Rare Events In Temporal Domains
ICDM '02 Proceedings of the 2002 IEEE International Conference on Data Mining
High-performance complex event processing over streams
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
A fast algorithm for finding frequent episodes in event streams
Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
Efficient pattern matching over event streams
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
Stream prediction using a generative model based on frequent episodes in event sequences
Proceedings of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining
Discovering Frequent Generalized Episodes When Events Persist for Different Durations
IEEE Transactions on Knowledge and Data Engineering
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Event prediction in event stream is an important problem in temporal data mining. However, existing event prediction algorithms are based on string prediction in which a character represents an event or an event type, do not take into account event sequence semantic and can not predict for infrequent event sequences. In this paper, an event prediction algorithm based on event sequence semantic called SVClustering-SVR is proposed to predict probability of target event occurrence in event stream in appointed interval. We build a vector structure called semantic vector to express event sequence semantic, and then utilize the attributes of standardizing semantic vector and confidence of rule which is generated by event sequences and target event to form samples space. Finally, we use Support Vector Regression (SVR) to build prediction model. To improve the accuracy of prediction, we also define semantic distance between event sequences and cluster semantic vectors. SVClustering-SVR algorithm can predict for infrequent event sequences and those not appeared in training set. Experimental results show the effectiveness of SVClustering-SVR algorithm.