Viewpoint Discovery and Understanding in Social Networks

The Web has evolved to a dominant platform where everyone has the opportunity to express their opinions, to interact with other users, and to debate on emerging events happening around the world. On the one hand, this has enabled the presence of different viewpoints and opinions about a - usually controversial - topic (like Brexit), but at the same time, it has led to phenomena like media bias, echo chambers and filter bubbles, where users are exposed to only one point of view on the same topic. Therefore, there is the need for methods that are able to detect and explain the different viewpoints. In this paper, we propose a graph partitioning method that exploits social interactions to enable the discovery of different communities (representing different viewpoints) discussing about a controversial topic in a social network like Twitter. To explain the discovered viewpoints, we describe a method, called Iterative Rank Difference (IRD), which allows detecting descriptive terms that characterize the different viewpoints as well as understanding how a specific term is related to a viewpoint (by detecting other related descriptive terms). The results of an experimental evaluation showed that our approach outperforms state-of-the-art methods on viewpoint discovery, while a qualitative analysis of the proposed IRD method on three different controversial topics showed that IRD provides comprehensive and deep representations of the different viewpoints

A study of the techniques for building morale used by business and industry which can be applied to personnel administration in education

Thesis (Ed.M.)--Boston Universit

Why is there no radical right party in Ireland?

The rise of the radical or extreme right parties in Europe - parties usually noted for strong, sometimes racist anti-immigrant ideologies - has attracted a great deal of attention in political science. Ireland, despite having some conditions favourable to the growth of such a party has no Radical Right party. This paper argues that that this is because the ‘space’ usually occupied by such parties - for young, poor people disaffected by economic change - is taken up by Sinn Féin, which though it has similarities to radical right parties, differs markedly in its attitudes to immigrants. It goes on to explain the special circumstances that prevent nationalist parties in Ireland from presenting overtly anti-immigrant platforms. The focus on anti-immigration and liberal economic policies for such parties may mean that other parties with strong resemblances are excluded from studies they might usefully be included in

V-ROOM: a virtual meeting system with intelligent structured summarisation

With the growth of virtual organisations and multinational companies, virtual collaboration tasks are becoming more important for employees. This paper describes the development of a virtual meeting system, called V-ROOM. An exploration of facilities required in such a system has been conducted. The findings highlighted that intelligent systems are needed, especially since information that individuals have to know and process, is vast. The survey results showed that meeting summarisation is one of the most important new features that should be added to virtual meeting systems for enterprises. This paper highlights the innovative methods employed in V-ROOM to produce relevant meeting summaries. V- ROOM's approach is compared to other methods from the literature and it is shown how the use of meta-data provided by parts of the V-ROOM system can improve the quality of summaries produced