Grooming Detection using Fuzzy-Rough Feature Selection and Text Classification

Zuo, Zheming, Li, Jie, Yang, Longzhi, Anderson, Philip and Naik, Nitin (2018) Grooming Detection using Fuzzy-Rough Feature Selection and Text Classification. In: FUZZ-IEEE 2018 - IEEE International Conference on Fuzzy Systems, 8th - 13th July 2018, Rio de Janeiro, Brazil.

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Abstract

Online child grooming detection has recently attracted intensive research interests from both the machine learning community and digital forensics community due to its great social impact. The existing data-driven approaches usually face the challenges of lack of training data and the uncertainty of classes in terms of the classification or decision boundary. This paper proposes a grooming detection approach in an effort to address such uncertainty based on a data set derived from a publicly available profiling data set. In particular, the approach firstly applies the conventional text feature extraction approach in identifying the most significant words in the data set. This is followed by the application of a fuzzy-rough feature selection approach in reducing the high dimensions of the selected words for fast processing, which at the same time addressing the uncertainty of class boundaries. The experimental results demonstrate the efficiency and efficacy.

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