- Title
- Constructing an inter-post similarity measure to differentiate the psychological stages in offensive chats
- Creator
- Miah, Md Waliur Rahman; Yearwood, John; Kulkarni, Siddhivinayak
- Date
- 2015
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/92641
- Identifier
- vital:9621
- Identifier
-
https://doi.org/10.1002/asi.23247
- Identifier
- ISSN:2330-1635
- Abstract
- Offensive Internet chats, particularly the child-exploiting type, tend to follow a documented psychological behavioral pattern. Researchers have identified some important stages in this pattern. The psychological stages broadly include befriending, information exchange, grooming, and approach. Similarities among the posts of a chat play an important role in differentiating as well as in identifying these stages. In this article a novel similarity measure is constructed which gives high Inter-post-similarity among the chat-posts within a particular behavioral stage and low inter-post-similarity across different behavioral stages. A psychological stage corpus-based dictionary is constructed from mining the terms associated with each stage. The dictionary works as a background knowledge-base to support the similarity measure. To find the inter-post similarity a modified sentence similarity measure is used. The proposed measure gives improved recognition of inter-stage and intra-stage similarity among the chat posts compared with other types of similarity measures. The pairwise inter-post similarity is used for clustering chat-posts into the psychological stages. Results of experiments demonstrate that the new clustering method gives better results than some current clustering methods.
- Publisher
- Wiley-Blackwell
- Relation
- Journal of the Association for Information Science and Technology Vol. 66, no. 5 (2015), p. 1065-1081
- Rights
- Copyright © 2014 ASIS&T
- Rights
- This metadata is freely available under a CCO license
- Subject
- Text processing; Similarity; Text mining; Communication
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