| 2015 | CCGRID | Energy Profiling Using IgProf. | Kashif Nizam Khan, Filip Nyback, Zhonghong Ou, Jukka K. Nurminen, Tapio Niemi, Giulio Eulisse, Peter Elmer, David Abdurachmanov |
| 2015 | CCGRID | Computing Heaters - An Energy-Efficient Way to Provide Computing Services. | Jukka K. Nurminen, Johan Strandman, Tapio Niemi |
| 2013 | DaWaK | Cell-at-a-Time Approach to Lazy Evaluation of Dimensional Aggregations. | Peter Thanisch, Jyrki Nummenmaa, Tapio Niemi, Marko Niinimki |
| 2010 | SAC | Ontologies and summarizability in OLAP. | Tapio Niemi, Marko Niinimki |
| 2009 | GPC | Improving Energy-Efficiency of Grid Computing Clusters. | Tapio Niemi, Jukka Kommeri, Kalle Happonen, Jukka Klem, Ari-Pekka Hameri |
| 2005 | EJC | Description Logics, Data Modelling and Relational Dependencies. | Tapio Niemi, Marko Niinimki, Santtu Toivonen |
| 2005 | EJC | Modelling, searching and utilising Grid resources and services. | Marko Niinimki, Santtu Toivonen, Tapio Niemi |
| 2003 | EJC | Document Similarities in Web Based Collaborative Environments. | Michael Gindonis, Tapio Niemi, Marko Niinimki |
| 2002 | DOLAP | Constructing an OLAP cube from distributed XML data. | Tapio Niemi, Marko Niinimki, Jyrki Nummenmaa, Peter Thanisch |
| 2001 | DOLAP | Constructing OLAP Cubes Based on Queries. | Tapio Niemi, Jyrki Nummenmaa, Peter Thanisch |
| 2000 | DaWaK | Functional Dependencies in Controlling Sparsity of OLAP Cubes. | Tapio Niemi, Jyrki Nummenmaa, Peter Thanisch |
| 2000 | EJC | A Query Method Based on Intensional Concept Definition. | Tapio Niemi, Jyrki Nummenmaa |
| 1999 | EJC | New approaches to Intensional Concept Theory. | Tapio Niemi |
| 1998 | EJC | Transforming Concept D Schema into Relational Database Schema. | Tapio Niemi |