6 research outputs found
Abusive Language Detection in Online Conversations by Combining Content-and Graph-based Features
In recent years, online social networks have allowed worldwide users to meet
and discuss. As guarantors of these communities, the administrators of these
platforms must prevent users from adopting inappropriate behaviors. This
verification task, mainly done by humans, is more and more difficult due to the
ever growing amount of messages to check. Methods have been proposed to
automatize this moderation process, mainly by providing approaches based on the
textual content of the exchanged messages. Recent work has also shown that
characteristics derived from the structure of conversations, in the form of
conversational graphs, can help detecting these abusive messages. In this
paper, we propose to take advantage of both sources of information by proposing
fusion methods integrating content-and graph-based features. Our experiments on
raw chat logs show that the content of the messages, but also of their dynamics
within a conversation contain partially complementary information, allowing
performance improvements on an abusive message classification task with a final
F-measure of 93.26%
Text Mining and Cybercrime
This chapter describes the state of technology for studying Internet crimes against children, specifically sexual predation and cyberbullying. We begin by presenting a survey of relevant research articles that are related to the study of cybercrime. This survey includes a discussion of our work on the classification of chat logs that contain bullying or predatory behavior. Many commercial enterprises have developed parental control software to monitor these behaviors, and the latest version of some of these tools provides features that profess to protect children against predators and bullies. The chapter concludes with a discussion of these products and offers suggestions for continued research in this interesting and timely sub-field of text mining. 1.
Innovative Self-Confidence Webinar Intervention for Depression in the Workplace: A Focus Group Study and Systematic Development
Brief face-to-face self-confidence workshops were effective in reducing
depression among the public. Technological advances have enabled
traditional face-to-face interventions to be adapted using unique
technology-mediated platforms. This article details the formative
development of a self-confidence web-based seminar (webinar)
intervention for workplace depression. The first section discusses a
qualitative study that explores the feasibility and acceptability of
adapting the self-confidence workshops into a webinar platform on
employees in the workplace. The second section describes the systematic
development of this new webinar intervention informed by the qualitative
study findings, a published systematic review, and previous
face-to-face self-confidence workshops. The qualitative study involves
three focus groups (n = 10) conducted
in a small organization. Three themes were identified relevant to the
running of the new self-confidence webinars in the workplace: personal
(content, time and duration preference, features of the webinar,
individual participation, personalization), interpersonal (stigma from
others, engagement with participants/presenter, moderated interaction),
and organizational (endorsement from management, work demand). For the
intervention development, the format, structure, features, and content
of the self-confidence webinar intervention are described. Features such
as file sharing, virtual whiteboard, live chat, and poll are explained
with the intervention primarily based on cognitive behavior therapy and
coping flexibility concepts.</p
A tool for internet chatroom surveillance
Abstract. Internet chatrooms are common means of interaction and communications, and they carry valuable information about formal or ad-hoc formation of groups with diverse objectives. This work presents a fully automated surveillance system for data collection and analysis in Internet chatrooms. The system has two components: First, it has an eavesdropping tool which collects statistics on individual (chatter) and chatroom behavior. This data can be used to profile a chatroom and its chatters. Second, it has a computational discovery algorithm based on Singular Value Decomposition (SVD) to locate hidden communities and communication patterns within a chatroom. The eavesdropping tool is used for fine tuning the SVD-based discovery algorithm which can be deployed in real-time and requires no semantic information processing. The evaluation of the system on real data shows that (i) statistical properties of different chatrooms vary significantly, thus profiling is possible, (ii) SVD-based algorithm has up to 70-80 % accuracy to discover groups of chatters.