Derek O'Callaghan

According to our database, Derek O'Callaghan authored at least 10 papers between 2012 and 2015.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2015

An analysis of the coherence of descriptors in topic modeling.

Derek O'Callaghan, Derek Greene, Joe Carthy, Pádraig Cunningham

Expert Syst. Appl., 2015

2014

How Many Topics? Stability Analysis for Topic Models.

Derek Greene, Derek O'Callaghan, Padraig Cunningham

Proceedings of the Machine Learning and Knowledge Discovery in Databases, 2014

Online social media in the Syria conflict: Encompassing the extremes and the in-betweens.

Derek O'Callaghan, Nico Prucha, Derek Greene, Maura Conway, Joe Carthy, Padraig Cunningham

Proceedings of the 2014 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, 2014

2013

Characterizing ego-networks using motifs.

Pádraig Cunningham, Martin Harrigan, Guangyu Wu, Derek O'Callaghan

Netw. Sci., 2013

The Extreme Right Filter Bubble.

Derek O'Callaghan, Derek Greene, Maura Conway, Joe Carthy, Pádraig Cunningham

CoRR, 2013

Uncovering the wider structure of extreme right communities spanning popular online networks.

Derek O'Callaghan, Derek Greene, Maura Conway, Joe Carthy, Pádraig Cunningham

Proceedings of the Web Science 2013 (co-located with ECRC), 2013

2012

Identifying Topical Twitter Communities via User List Aggregation

Derek Greene, Derek O'Callaghan, Pádraig Cunningham

CoRR, 2012

Identifying Discriminating Network Motifs in YouTube Spam

Derek O'Callaghan, Martin Harrigan, Joe Carthy, Pádraig Cunningham

CoRR, 2012

An Analysis of Interactions within and between Extreme Right Communities in Social Media.

Derek O'Callaghan, Derek Greene, Maura Conway, Joe Carthy, Pádraig Cunningham

Proceedings of the Ubiquitous Social Media Analysis, 2012

Network Analysis of Recurring YouTube Spam Campaigns.

Derek O'Callaghan, Martin Harrigan, Joe Carthy, Pádraig Cunningham

Proceedings of the Sixth International Conference on Weblogs and Social Media, 2012