Tapio Pahikkala
Professor
aatapa@utu.fi +358 29 450 4323 +358 50 345 5824 Office: 456D ORCID identifier: https://orcid.org/0000-0003-4183-2455 |
Machine learning, Data science, Artificial intelligence
Machine learning, Data science, Artificial intelligence
Tapio Pahikkala is a professor of computer science in the University of Turku, Finland, from which he also received his doctoral degree in 2008. He has authored more than 150 peer-reviewed scientific articles and participated in the winning teams of several international scientific competitions/challenges. He has led many research projects, supervised more than ten doctoral theses, held several positions of trust in academia and served in the program committees of numerous international conferences. His current research interests include theory and algorithmics of machine learning, data analysis, and artificial intelligence, as well as their applications on various different fields.
Theory and algorithmics of machine learning, data science and artificial intelligence as well as their practical applications in various different fields. Estimation of prediction performance with resampling methods, theory of resampling and cross-validation.
Current research projects:Academy of Finland: "AI technologies for interaction prediction in biomedicine", Academy of Finland: "Machine Learning for Systems Pharmacology", Business Finland: "Privasa".
The course I am currently responsible of: ``Evaluation of Machine Learning Methods'', consists of a series of practical cases studies that are each presented by different assistant teachers that act as clients of data scientists. The clients then introduce the problem the the data scientist should solve for them and the details of the data. The students' job is then implement the data analysis pipeline, train a predictive model, do a proper experimental design and carry out carry out statistical estimation of the prediction performance for each client. To achieve this, they study the accompanying course material that is currently in the form of both video lectures and reading material. All the clients' cases correspond to real cases from which our team has written research articles in the past. For example, the case concerning metal ion concentration prediction from drinking water is based on our research cooperation with the chemistry deparment of the University of Turku (Pihlasalo et al. 2016), the case on water permeability prediction in forestry for route planning of forest harvesters and the use of newly developed spatial cross-validation for estimating the prediction performance in that context is based on our cooperation with the Natural Resources Center of Finland (Pohjankukka et al. 2017), and the case concerning drug-target interaction prediction is based on our research cooperation with Institute for Molecular Medicine Finland (Pahikkala et al. 2015), to highlight a few. We have also had plans to involve cases from private companies in the future, such that would correspond to real commercial cases.
- Prebiopsy IMPROD Biparametric Magnetic Resonance Imaging Combined with Prostate-Specific Antigen Density in the Diagnosis of Prostate Cancer: An External Validation Study (2019)
- European Urology Oncology
(A1 Refereed original research article in a scientific journal) - Predicting the monetization percentage with survival analysis in free-to-play games (2019) 2019 IEEE Conference on Games (CoG 2019) Riikka Numminen, Markus Viljanen, Tapio Pahikkala
(A4 Refereed article in a conference publication ) - Prediction of biochemical recurrence in prostate cancer patients who underwent prostatectomy using routine clinical prostate multiparametric MRI and decipher genomic score (2019)
- Journal of Magnetic Resonance Imaging
(A1 Refereed original research article in a scientific journal) - Qualitative and Quantitative Reporting of a Unique Biparametric MRI: Towards Biparametric MRI-Based Nomograms for Prediction of Prostate Biopsy Outcome in Men With a Clinical Suspicion of Prostate Cancer (IMPROD and MULTI-IMPROD Trials) (2019)
- Journal of Magnetic Resonance Imaging
(A1 Refereed original research article in a scientific journal) - Radiomics and machine learning of multisequence multiparametric prostate MRI: Towards improved non-invasive prostate cancer characterization (2019)
- PLoS ONE
(A1 Refereed original research article in a scientific journal) - Skin Conductance Response to Gradual-Increasing Experimental Pain (2019)
- Annual International Conference of the IEEE Engineering in Medicine and Biology Society
(A4 Refereed article in a conference publication ) - The spatial leave-pair-out cross-validation method for reliable AUC estimation of spatial classifiers (2019)
- Data Mining and Knowledge Discovery
(A1 Refereed original research article in a scientific journal) - Tournament leave-pair-out cross-validation for receiver operating characteristic analysis (2019)
- Statistical Methods in Medical Research
(A1 Refereed original research article in a scientific journal) - A comparative study of pairwise learning methods based on Kernel ridge regression (2018)
- Neural Computation
(A1 Refereed original research article in a scientific journal) - Combined transcriptomics, proteomics and metabolomics analysis identifies metabolic pathways associated with the loss of cardiac regeneration (2018)
- Cardiovascular Research
(Other publication) - Comparison of estimators and feature selection procedures in forest inventory based on airborne laser scanning and digital aerial imagery (2018)
- Scandinavian Journal of Forest Research
(A1 Refereed original research article in a scientific journal) - Effect of homogenised and pasteurised versus native cows' milk on gastrointestinal symptoms, intestinal pressure and postprandial lipid metabolism (2018)
- International Dairy Journal
(A1 Refereed original research article in a scientific journal) - Evaluation of machine learning algorithms for improved risk assessment for Down's syndrome (2018)
- Computers in Biology and Medicine
(A1 Refereed original research article in a scientific journal) - Fast Kronecker Product Kernel Methods via Generalized Vec Trick (2018)
- IEEE Transactions on Neural Networks and Learning Systems
(A1 Refereed original research article in a scientific journal) - How engineers perceive the importance of ethics in Finland (2018)
- European Journal of Engineering Education
(A1 Refereed original research article in a scientific journal) - Learning with multiple pairwise kernels for drug bioactivity prediction (2018)
- Bioinformatics
(A1 Refereed original research article in a scientific journal) - Molecular atlas of postnatal mouse heart development (2018)
- Journal of the American Heart Association
(A1 Refereed original research article in a scientific journal) - Playtime Measurement with Survival Analysis (2018)
- IEEE Transactions on Computational Intelligence and AI in Games
(A1 Refereed original research article in a scientific journal) - Ship Movement Prediction Using k-NN Method (2018) 2018 Baltic Geodetic Congress (BGC Geomatics 2018). 21-23 June 2018, Olsztyn, Poland. Proceedings Petra Virjonen, Paavo Nevalainen, Tapio Pahikkala, Jukka Heikkonen
(A4 Refereed article in a conference publication ) - Time-Gated Raman Spectroscopy for Quantitative Determination of Solid-State Forms of Fluorescent Pharmaceuticals (2018)
- Analytical Chemistry
(A1 Refereed original research article in a scientific journal)