Journal of Computer and System Sciences
Bursty and hierarchical structure in streams
Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining
Efficient elastic burst detection in data streams
Proceedings of the ninth ACM SIGKDD international conference on Knowledge discovery and data mining
Identifying similarities, periodicities and bursts for online search queries
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
BlogScope: a system for online analysis of high volume text streams
VLDB '07 Proceedings of the 33rd international conference on Very large data bases
On burstiness-aware search for document sequences
Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining
On the spatiotemporal burstiness of terms
Proceedings of the VLDB Endowment
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Burst identification has been extensively studied in the context of document streams, where a burst is generally exhibited when an unusually high frequency is observed for a term t. Previous works have focused exclusively on either temporal or spatial burstiness patterns. The former represents bursty timeframes within a single stream, while the latter characterizes sets of streams that simultaneously exhibited a bursty behavior for a user-specified timeframe. Our previous work was the first to study the spatiotemporal burstiness of terms. In this context, a burstiness pattern consists of both a timeframe and a set of streams, both of which need to be identified automatically. In this paper we describe STEM (Spatio-TEmporal Miner), a system for finding spatiotemporal burstiness patterns in a collection of spatially distributed frequency streams. STEM implements the full functionality required to mine spatiotemporal burstiness patterns from virtually any collection of geostamped streams. Examples of such collections include document streams (e.g. online newspapers), geo-aware microblogging platforms (e.g. Twitter). This paper describes the STEM system and discusses how its features can be accessed via a user-friendly interface.