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Derek Greene

Lecturer

School Of Computer Science & Informatics
Science Centre - East
Belfield
Dublin 4

Tel: +353 1 7162496
Email: derek.greene@ucd.ie

Biography


Dr. Derek Greene is a Lecturer at the School of Computer Science and Informatics, University College Dublin, and a researcher at the Insight Centre for Data Analytics. He received his Ph.D. from Trinity College Dublin in 2006, for work in the area of unsupervised text mining. After working as a Postdoctoral Researcher at the Machine Learning Group in UCD,  he joined the SFI-funded Clique Research Cluster as a Research Fellow in May 2009 and worked in the UCD CASL institute. In July 2013, he joined the Insight Centre, where his current research focuses on scalable machine learning, network analysis, and the application of text mining in areas such as social media analytics and the digital humanities. In addition to his work at UCD, Derek is also currently an Adjunct Lecturer at the NUIG College of Engineering & Informatics.
 
Research Interests

Machine learning, data mining, social network analysis, text mining, recommender systems


Academic Experience

2014-Lecturer, School of Computer Science & Informatics, UCD
2013-2014Senior Research Fellow: Insight Centre for Data Analytics, UCD
2009-2013Senior Research FellowClique Research Cluster, UCD
2012-Adjunct Lecturer: College of Engineering & Informatics, NUIG
2010-2014External Examiner: School of Computing, DIT, Kevin Street
2006-2009Postdoctoral Researcher: School of Computer Science & Informatics, UCD
2003Research Assistant: NTRG, Dept. Computer Science, Trinity College Dublin


Education

2003-2006Ph.D., Trinity College Dublin, Ireland
1999-2003B.A. (Mod.) ICT (Hon, 1), Trinity College Dublin, Ireland

Publications

 

Book Chapters

Ryan C, Cagney G, Krogan NJ, Cunningham P, Greene D (2011) ''Imputing and predicting quantitative genetic interactions in epistatic MAPs' In: Ryan C, Cagney G, Krogan NJ, Cunningham P, Greene D (eds). Network Biology: Methods and Applications (Methods in Molecular Biology). USA: Springer Verlag. , pp.353-361 Available Online [DOI] [Details]
Brew, A., Greene, D. and Cunningham, P.; (2010) 'A Machine Learning System for Tracking Sentiment in Irish Economic News' In: Coyle, L., and Freyne, J (eds). Lecture Notes in Computer Science, Volume 6206 (AICS 2009). Berlin: Springer. , pp.285-286 Available Online [DOI] [Details]
D. Greene, P. Cunningham, and R. Mayer; (2008) 'Unsupervised learning and clustering' In: M. Cord and P. Cunningham (eds). Machine Learning Techniques for Multimedia: Case Studies on Organization and Retrieval. Paris: Springer. , pp.51-90 [Details]
 

Peer Reviewed Journals

O'Callaghan, Derek and Greene, Derek and Conway, Maura and Carthy, Joe and Cunningham, Pádraig (2014) 'Down the (White) Rabbit Hole: The Extreme Right and Online Recommender Systems'. Social Science Computer Review, . Available Online [DOI] [Details]
Delaney, S.J.; Buckley, M.; Greene, D. (2012) 'SMS Spam Filtering: Methods and Data'. Expert Systems with Applications, . [Details]
Ryan, CJ,Roguev, A,Patrick, K,Xu, JW,Jahari, H,Tong, ZT,Beltrao, P,Shales, M,Qu, H,Collins, SR,Kliegman, JI,Jiang, LL,Kuo, D,Tosti, E,Kim, HS,Edelmann, W,Keogh, MC,Greene, D,Tang, C,Cunningham, P,Shokat, KM,Cagney, G,Svensson, JP,Guthrie, C,Espenshade, PJ,Ideker, T,Krogan, NJ (2012) 'Hierarchical Modularity and the Evolution of Genetic Interactomes across Species'. Molecular cell, 46 :691-704. [DOI] [Details]
Ryan C, Greene D, Guenole A, van Attikum H, Krogan NJ, Cunningham P, Cagney G; (2011) 'Improved functional overview of protein complexes using inferred epistatic relationships'. BMC systems biology, 5 (80). Available Online [DOI] [Details]
Ryan C, Cagney G, Krogan N, Cunningham P, Greene D (2011) 'Imputing and predicting quantitative genetic interactions in epistatic MAPs'. Methods, 781 :353-361. [DOI] [Details]
Greene, D,Freyne, J,Smyth, B,Cunningham, P; (2010) 'An Analysis of Current Trends in CBR Research Using Multiview Clustering'. AI MAGAZINE, 31 :45-61. [Details]
Ryan CJ, Roguev A, Patrick K, Xu J, Jahari H, Tong Z, Beltrao P, Shales M, Qu H, Collins SR, Kliegman JI, Jiang L, Kuo D, Tosti E, Kim HS, Edelmann W, Keogh MC, Greene D, Tang C, Cunningham P, Shokat KM, Cagney G, Svensson JP, Guthrie C, Espenshade PJ, Ideker T, Krogan NJ (2012) 'Hierarchical Modularity and the Evolution of Genetic Interactomes across Species'. Molecular cell, 46 (5):691-704. [DOI] Link to full text [Details]
Greene, D., Freyne, J., Smyth, B., Cunningham, P.; (2010) 'An Analysis of Current Trends in CBR Research Using Multi-View Clustering'. AI MAGAZINE, 31 (2):45-62. Available Online [Details]
Ryan, C., Greene, D., Cagney, G., Cunningham, P.; (2010) 'Missing value imputation for epistatic MAPs'. BMC Bioinformatics, 11 . Available Online [DOI] [Details]
Narasimhamurthy, A., Greene, D., Hurley, N. and Cunningham, P.; (2009) 'Partitioning Large Networks Without Breaking Communities'. Knowledge and Information Systems, . [Details]
Cunningham P, Greene D, Cagney G, Krogan N, ; (2008) 'Ensemble Non-negative Matrix Factorization Methods for Clustering Protein-Protein Interactions'. Bioinformatics, . Available Online [DOI] [Details]
 

Conference Publications

O'Callaghan, D., Prucha, N., Greene, D., Conway, M., Carthy, J., Cunningham, P., (2014) Online Social Media in the Syria Conflict: Encompassing the Extremes and the In-Betweens International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2014) [Details]
Igor Brigadir and Derek Greene and P\'adraig Cunningham (2014) Adaptive Representations for Tracking Breaking News on Twitter NewsKDD - Workshop on Data Science for News Publishing at KDD 2014 [Details]
Greene, D., O'Callaghan, D., Cunningham, P., (2014) How Many Topics? Stability Analysis for Topic Models Proceedings of Machine Learning and Knowledge Discovery in Databases - European Conference, (ECML PKDD) [Details]
Qin (2014) A Latent Space Analysis of Editor Lifecycles in Wikipedia Proc. 5th International Workshop on Mining Ubiquitous and Social Environments (MUSE) at ECML 2014 [Details]
O'Callaghan, D; Greene, D.;Conway, M.; Carthy, J.; Cunningham, P. (2013) Uncovering the Wider Structure of Extreme Right Communities Spanning Popular Online Networks Proc. ACM Web Science 2013 [Details]
Hulpus, Ioana and Hayes, Conor and Karnstedt, Marcel and Greene, Derek and Jozwowicz, Marek (2013) Kanopy: Analysing the Semantic Network around Document Topics Proc. European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD'13) [Details]
Brigadir, I.; Greene, D.; Sheridan, G.; Cunningham, P. (2013) Real Time Event Monitoring with Trident Proc. Workshop on Real-World Challenges for Data Stream Mining (RealStream) at ECML 2013 Link to full text [Details]
Greene, D. and Cunningham, P.; (2013) Producing a Unified Graph Representation from Multiple Social Network Views Proceedings of the 5th Annual ACM Web Science Conference (WebSci'13) , pp.118-121 Link to full text [Details]
Wade, K.; Greene, D.; Lee, C.; Archambault, D.; Cunningham, P. (2011) Identifying Representative Textual Sources in Blog Networks 5th International AAAI Conference on Weblogs and Social Media (ICWSM'11) Barcelona, Spain, [Details]
Lee, C.; Greene, D.; Cunningham, P. (2011) Detecting grand tours of Europe with geo-tags NIPS 2011 Workshop on Computational Social Science and the Wisdom of Crowds Granada, Spain, [Details]
Greene, D.; Reid, F.; Sheridan, G.; Cunningham, P. (2011) Supporting the curation of Twitter user lists NIPS 2011 Workshop on Computational Social Science and the Wisdom of Crowds Granada, Spain, [Details]
Greene, D.; O'Callaghan, D.; Cunningham, P. (2012) Identifying Topical Twitter Communities via User List Aggregation 2nd International Workshop on Mining Communities and People Recommenders (COMMPER 2012) at ECML 2012 Bristol, UK, [Details]
Greene, D.; Sheridan, G.; Smyth, B.; Cunningham, P. (2012) Aggregating Content and Network Information to Curate Twitter User Lists RSWeb '12 Proceedings of the 4th ACM RecSys workshop on recommender systems and the social web Dublin, Ireland, [Details]
O'Callaghan, D; Greene, D.;Conway, M.; Carthy, J.; Cunningham, P. (2012) An Analysis of Interactions Within and Between Extreme Right Communities in Social Media 3rd International Workshop on Mining Ubiquitous and Social Environments (MUSE 2012) at ECML 2012 Bristol, UK, [Details]
Brigadir, I.; Greene, D.; Cunningham, P. (2012) A System for Twitter User List Curation ACM RecSys 2012 Dublin, Ireland, [Details]
Hulpus, I.; Hayes, C.; Karnstedt, M.; Greene, D. (2012) An Eigenvalue-Based Measure for Word-Sense Disambiguation 25th Florida Artificial Intelligence Research Society Conference (FLAIRS 2012) Florida, US, [Details]
Hulpus, I.; Hayes, C.; Karnstedt, M.; Greene, D. (2013) Unsupervised Graph-Based Topic Labelling using DBPedia 6th ACM WSDM Conference (WSDM'13) Rome, Italy, [Details]
Brew, A., Greene, D., Archambault, D., Cunningham, P. ; (2011) Deriving insights from national happiness indices ICDM 2011 Workshop on Sentiment Elicitation from Natural Text for Information Retrieval and Extraction (SENTIRE) Vancouver, Canada, [Details]
Archambault, D., Greene, D., Cunningham, P., Hurley, N.,; (2011) ThemeCrowds: multiresolution summaries of twitter usage . In: I Cantador, F. M. Carrero, J. C. Cortizo, P. Rosso, M. Schedl, J. A. Troyano eds. 3rd International Workshop on Search and Mining User-Generated Contents, (SMUC'11) Glasgow, , pp.77-84 [Details]
D. Greene, D. Doyle, and P. Cunningham; (2010) Tracking the evolution of communities in dynamic social networks International Conference on Advances in Social Networks Analysis and Mining (ASONAM'10) Available Online [Details]
Wu, G., Greene, D. and Cunningham, P.; (2010) Merging multiple criteria to identify suspicious reviews 4th ACM Conference on Recommender Systems (RecSys'10) [Details]
Foley, K., Greene, D. and Cunningham, P.; (2010) Optimizing Conflicting Objectives in NMF Using Pareto Simulated Annealing 21st Irish Conference on Artificial Intelligence and Cognitive Science (AICS'10) [Details]
Greene, D. and Cunningham, P. ; (2010) Spectral Co-Clustering for Dynamic Bipartite Graphs Dynamic Networks and Knowledge Discovery (DYNAK'10) at ECML'10 Available Online [Details]
Brew, A., Greene, D. and Cunningham, P.; (2010) The Interaction Between Supervised Learning and Crowdsourcing Computational Social Science and the Wisdom of Crowds - 24th Annual Conference on Neural Information Processing Systems (NIPS'10) [Details]
Brew, A., Greene, D. and Cunningham, P.; (2010) Taking the Pulse of the Web: Assessing Sentiment on Topics in Online Media WebSci'10: Extending the Frontiers of Society On-Line [Details]
Wu, G. and Greene, D. and Smyth, B. and Cunningham, P.; (2010) Distortion as a Validation Criterion in the Identification of Suspicious Reviews Social Media Analytics (SOMA) (ACM SIGKDD Conference of Knowledge Discovery and Data Mining) [Details]
Brew, A., Greene, D. and Cunningham, P. ; (2010) Using Crowdsourcing and Active Learning to Track Sentiment in Online Media . In: H. Coelho, R. Studer, M. Wooldridge eds. 19th European Conference on Artificial Intelligence (ECAI-2010) Lisbon, Portugal, , pp.145-150 Available Online [Details]
Greene, D. and Cunningham, P.; (2009) A Matrix Factorization Approach for Integrating Multiple Data Views . In: W. L. Buntine, M. Grobelnik, D. Mladenic, J. Shawe-Taylor eds. European Conference on Machine Learning (ECML'09), Bled, Slovenia Bled, Slovenia, , pp.423-438 Available Online [DOI] [Details]
Greene, D. and Cunningham, P.; (2009) Multi-view clustering for mining heterogeneous social network data Workshop on Information Retrieval over Social Networks, 31st European Conference on Information Retrieval (ECIR'09) [Details]
Greene, D., Bryan, K. and Cunningham, P.; (2008) Parallel Integration of Heterogeneous Genome-Wide Data Sources 8th International Conference on BioInformatics and BioEngineering (BIBE 2008) Athens, Greece, Available Online [Details]
Narasimhamurthy, A., Greene, D., Hurley, N. and Cunningham, P.; (2008) Community Finding in Large Social Networks Through Problem Decomposition . In: D. Bridge, K. Brown, B. O'Sullivan, H. Sorensen eds. 19th Irish Conference on Artificial Intelligence and Cognitive Science (AICS'08) Cork, Ireland, , pp.113-122 Available Online [Details]
Greene D., Freyne J., Smyth B., Cunningham P.; (2008) An Analysis of Research Themes in the CBR Conference Literature 9th European Conference on Case-Based Reasoning (ECCBR'08) Trier, Germany, Available Online [Details]
Narasimhamurthy, A., Greene, D., Hurley, N. and Cunningham, P.; (2008) Community Finding in Large Social Networks Through Problem Decomposition 19th Irish Conference on Artificial Intelligence and Cognitive Science (AICS'08) Cork, Ireland, Available Online [Details]
D. Greene, P. Cunningham; (2007) Constraint Selection by Committee: An Ensemble Approach to Identifying Informative Constraints for Semi-Supervised Clustering 18th European Conference on Machine Learning (ECML'07) Warsaw, Poland, Available Online [Details]
Greene, D., Cunningham, P., ; (2006) Practical Solutions to the Problem of Diagonal Dominance in Kernel Document Clustering . In: W.W. Cohen, A. Moore eds. Proceedings of 23rd International Conference on Machine Learning (ICML 2006) , pp.377-384 Available Online [Details]
D. Greene, P. Cunningham.; (2005) Producing Accurate Interpretable Clusters from High-Dimensional Data 9th European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD'05) Porto, Portugal, , pp.486-494 [Details]
Greene, D., Tsymbal, A., Bolshakova, N., Cunningham, P., ; (2004) Ensemble Clustering in Medical Diagnosis Proceedings of 17th IEEE Symposium on Computer Based Medical Systems , pp.576-581 Available Online [Details]
D. Greene, D. O'Mahony; (2004) Instant Messaging & Presence Management in Mobile Ad-Hoc Networks 2nd IEEE Annual Conference on Pervasive Computing and Communications Workshops (PERCOMW'04) , pp.55-59 [Details]
                                 

Reviews

Delany, SJ,Buckley, M,Greene, D (2012) SMS spam filtering: Methods and data. Reviews [DOI] [Details]
             

Technical Publication

D. Greene, P. Cunningham.; (2007) An Ensemble Approach to Identifying Informative Constraints for Semi-Supervised Clustering. School of Computer Science and Informatics, UCD, Ireland: Technical Publication Available Online [Details]
D. Greene, P. Cunningham; (2006) Efficient Ensemble Methods for Document Clustering. Trinity College Dublin: Technical Publication Available Online [Details]
                                     

Research

Research Interests

Current Research (UCD):

Machine learning: Development of novel cluster analysis and dimensionality reduction algorithms, with a particular focus on their application in text mining tasks.

Network analysis: Development and application of clustering, matrix factorisation, and community finding algorithms to large-scale dynamic social networks.

Social media analytics: Using data mining and visualisation to explore trends and behaviours in online social media platforms. This has included work on topic modelling, sentiment analysis, content curation, and user recommendation systems.

Digital humanities: Application of network analysis techniques to explore character networks in 19th & 20th century novels, in collaboration with UCD Humanities Institute.

This work is undertaken as part of the SFI-funded Insight Centre @ UCD.
 

PhD Thesis (Trinity College Dublin):

A State-of-the-Art Toolkit for Document Clustering 

This work provides a new framework supporting the development of applications for exploratory text mining tasks. As well as allowing researchers to apply popular learning algorithms to large document collections, the framework introduces a variety of novel data analysis procedures based on kernel learning, cluster ensembles, and matrix decomposition methods.