| 2012 | SAC | Investigations into user rating information and predictive accuracy in a collaborative filtering domain. | Josephine Griffith, Colm O'Riordan, Humphrey Sorensen |
| 2011 | IC3K | Learning Neighbourhood-based Collaborative Filtering Parameters. | Josephine Griffith, Colm O'Riordan, Humphrey Sorensen |
| 2008 | ALIFE | Emergence of Cooperation in N-player games on small world networks. | Colm O'Riordan, Alan Cunningham, Humphrey Sorensen |
| 2007 | AAAI | Evolutionary and Lifetime Learning in Varying NK Fitness Landscape Changing Environments: An Analysis of Both Fitness and Diversity. | Dara Curran, Colm O'Riordan, Humphrey Sorensen |
| 2007 | AAMAS | Stable Cooperation in the N-Player Prisoner's Dilemma: The Importance of Community Structure. | Colm O'Riordan, Humphrey Sorensen |
| 2007 | GECCO | The effects of lifetime learning on the diversity and fitness of populations. | Dara Curran, Colm O'Riordan, Humphrey Sorensen |
| 2007 | GECCO | Self-adaptation of cultural learning parameters. | Dara Curran, Colm O'Riordan, Humphrey Sorensen |
| 2007 | SGAI | Spatial N-player Dilemmas in Changing Environments. | Colm O'Riordan, Dara Curran, Humphrey Sorensen |
| 2006 | CEC | Norms and cultural learning in the N-player prisoner's dilemma. | Colm O'Riordan, Josephine Griffith, Dara Curran, Humphrey Sorensen |
| 2006 | KES | A Constrained Spreading Activation Approach to Collaborative Filtering. | Josephine Griffith, Colm O'Riordan, Humphrey Sorensen |
| 2004 | CEC | Co-evolution of strategies for an n-player dilemma. | Colm O'Riordan, Josephine Griffith, John Newell, Humphrey Sorensen |
| 1995 | CIKM | An Intelligent Agent for High-Precision Text Filtering. | Adrian O'Riordan, Humphrey Sorensen |
| 1995 | CIKM | PSUN: A Profiling System for Usenet News. | Humphrey Sorensen, M. McElligott |