Abstract
Microblog has been an important medium for providing the rapid communications of public opinion and can quickly publicize a burst topic for discussion when unexpected incidents happen. Abnormal messages are usually the source of burst topics and are important for the diffusion of burst topics. It is necessary to detect abnormal messages from microblog real-time message stream. In this paper, we propose SAMD, a System for Abnormal Messages Detection. In SAMD, sliding time window model is applied to divide the microblog data stream into different shards. Only that the participation of messages exceed initial threshold can be indexed and stored in two-level hash table. An efficient abnormal messages detection model is used to detect abnormal messages in a given time window. The case study on the collected data set can show that SAMD is effective to detect and demonstrate abnormal messages from large-scale microblog message stream.
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Acknowledgment
The authors would like to thank the reviewers for suggesting many ways to improve the paper. This work was partially supported by the National High Technology Research and Development Program of China (No. 2012AA012802), the Fundamental Research Funds for the Central Universities (No. HEUCF100605) and the National Natural Science Foundation of China (No. 61170242, 60633020, and 61300206).
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Dong, G., Wang, B., Yang, W., Wang, W., Sun, R. (2015). SAMD: A System for Abnormal Messages Detection Oriented Microblog Message Stream. In: Gong, M., Linqiang, P., Tao, S., Tang, K., Zhang, X. (eds) Bio-Inspired Computing -- Theories and Applications. BIC-TA 2015. Communications in Computer and Information Science, vol 562. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-49014-3_11
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DOI: https://doi.org/10.1007/978-3-662-49014-3_11
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