| 2022 | AISTATS | DEANN: Speeding up Kernel-Density Estimation using Approximate Nearest Neighbor Search. | Matti Karppa, Martin Aumller, Rasmus Pagh |
| 2022 | KDD | HyperLogLogLog: Cardinality Estimation With One Log More. | Matti Karppa, Rasmus Pagh |
| 2019 | SODA | Probabilistic Tensors and Opportunistic Boolean Matrix Multiplication. | Matti Karppa, Petteri Kaski |
| 2017 | SAT | An Adaptive Prefix-Assignment Technique for Symmetry Reduction. | Tommi A. Junttila, Matti Karppa, Petteri Kaski, Jukka Kohonen |
| 2016 | ESA | Explicit Correlation Amplifiers for Finding Outlier Correlations in Deterministic Subquadratic Time. | Matti Karppa, Petteri Kaski, Jukka Kohonen, Padraig Cathin |
| 2016 | SODA | A Faster Subquadratic Algorithm for Finding Outlier Correlations. | Matti Karppa, Petteri Kaski, Jukka Kohonen |
| 2014 | ICPR | Experiments on Recognising the Handshape in Blobs Extracted from Sign Language Videos. | Ville Viitaniemi, Matti Karppa, Jorma Laaksonen |
| 2014 | LREC | SLMotion - An extensible sign language oriented video analysis tool. | Matti Karppa, Ville Viitaniemi, Marcos Luzardo, Jorma Laaksonen, Tommi Jantunen |
| 2014 | LREC | S-pot - a benchmark in spotting signs within continuous signing. | Ville Viitaniemi, Tommi Jantunen, Leena Savolainen, Matti Karppa, Jorma Laaksonen |
| 2012 | LREC | Comparing computer vision analysis of signed language video with motion capture recordings. | Matti Karppa, Tommi Jantunen, Ville Viitaniemi, Jorma Laaksonen, Birgitta Burger, Danny De Weerdt |