| 2017 | IFSA | A novel fuzzy result ranking technique. | Christophe Billiet, Robin De Mol, Guy De Tr |
| 2015 | FQAS | The Role of Computational Intelligence in Temporal Information Retrieval: A Survey of Imperfect Time in Information Systems. | Christophe Billiet, Guy De Tr |
| 2014 | IJCCI | Twodimensional Visualization of Discrete Time Domain Intervals Subject to Uncertainty. | Christophe Billiet, Guy De Tr |
| 2013 | EUSFLAT | A Comparison of Approaches to Model Uncertainty in Time Intervals. | Christophe Billiet, Jose Enrique Pons, Olga Pons, Guy De Tr |
| 2013 | FQAS | Bipolar Querying of Valid-Time Intervals Subject to Uncertainty. | Christophe Billiet, Jose Enrique Pons, Olga Pons Capote, Guy De Tr |
| 2012 | IPMU | Evaluating Possibilistic Valid-Time Queries. | Christophe Billiet, Jose Enrique Pons, Olga Pons Capote, Guy De Tr |
| 2012 | IPMU | A Possibilistic Valid-Time Model. | Jose Enrique Pons, Christophe Billiet, Olga Pons Capote, Guy De Tr |
| 2011 | FQAS | Bipolar Fuzzy Querying of Temporal Databases. | Christophe Billiet, Jose Enrique Pons, Tom Matth, Guy De Tr, Olga Pons Capote |