Tapio Pahikkala
 Professor


aatapa@utu.fi

+358 29 450 4323

+358 50 345 5824



Työhuone456D


ORCID-tunnistehttps://orcid.org/0000-0003-4183-2455

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Asiantuntijuusalueet
Machine learning, Data science, Artificial intelligence

Tutkimusyhteisö tai tutkimusaihe
Machine learning, Data science, Artificial intelligence

Biografia

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.



Tutkimus

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".



Opetus

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.



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  • New computational methods for efficient utilisation of public data  (2015)   Jari Ala-Ilomäki, Juval Cohen, Jyri Heilimo, Eija Hyvönen, Pekka Hänninen, Jaakko Ikonen, Maarit Middleton, Paavo Nevalainen, Tapio Pahikkala, Jonne Pohjankukka, Jouni Pulliainen, Henri Riihimäki, Raimo Sutinen, Sakari Tuominen, Jari Varjo
    (
    D4 Julkaistu kehittämis- tai tutkimusraportti tai -selvitys )


  •   (2015)  Proceedings of the 10th International Conference on Software Engineering and Applications (ICSOFT-EA) Thomas Canhao Xu, Jonne Pohjankukka, Paavo Nevalainen, Ville Leppänen, Tapio Pahikkala
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Parallel Implementation of Fuzzified Pattern Matching Algorithm on GPU  (2015)  2015 23rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing Shima Soroushnia, Masoud Daneshtalab, Tapio Pahikkala, Juha Plosila
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Toward more realistic drug-target interaction predictions  (2015)  
    • Briefings in Bioinformatics
     Tapio Pahikkala, Antti Airola, Sami Pietilä, Sushil Shakyawar, Agnieszka Szwajda, Jing Tang, Tero Aittokallio
    (
    A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )


  •   (2015)  
    • IEEE Transactions on Services Computing
     Fahimeh Farahnakian, Adnan Ashraf, Tapio Pahikkala, Pasi Liljeberg, Juha Plosila, Ivan Porres, Hannu Tenhunen
    (
    A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )


  • Utilization prediction aware VM consolidation approach for green cloud computing  (2015)  IEEE International Conference on Cloud Computing Fahimeh Farahnakian, Tapio Pahikkala, Pasi Liljeberg, Juha Plosila, Hannu Tenhunen
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  •   (2014)  
    • Dagstuhl Reports
    Report from Dagstuhl Seminar 14101 Preference Learning Tapio Pahikkala
    (
    O2 Muu julkaisu )


  •   (2014)  22nd International conference on pattern recognition Jonne Pohjankukka, Paavo Nevalainen, Tapio Pahikkala, Pekka Hänninen, Eija Hyvönen, Raimo Sutinen, Jukka Heikkonen
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • A two-step learning approach for solving full and almost full cold start problems in dyadic prediction  (2014)  
    • Lecture Notes in Computer Science
    Machine Learning and Knowledge Discovery in Databases (ECML PKDD 2014) Tapio Pahikkala, Michiel Stock, Antti Airola, Tero Aittokallio, Bernard De Baets, Willem Waegeman
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • BDMap: A Heuristic Application Mapping Algorithm for the Big Data Era  (2014)   Xu Thomas Canhao, Toivonen Jussi, Pahikkala Tapio, Leppänen Ville
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Energy-aware Dynamic VM Consolidation in Cloud Data Centers using Ant Colony System  (2014)  Cloud Computing (CLOUD), 2014 IEEE 7th International Conference on Fahimeh Farahnakian, Adnan Ashraf, Pasi Liljeberg, Tapio Pahikkala, Juha Plosila, Ivan Porres, Hannu Tenhunen
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Enzyme annotation using conditional ranking algorithms  (2014)  23rd annual Belgian-Dutch Conference on Machine Learning (Benelearn 2014) Michiel Stock, Bernard De Baets, Willem Waegeman, Thomas Fober, Eyke Hüllermeier, Tapio Pahikkala, Antti Airola
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Fast and simple gradient-based optimization for semi-supervised support vector machines  (2014)  
    • Neurocomputing
     Gieseke F, Airola A, Pahikkala T, Kramer O
    (
    A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )


  • Fast Gradient Computation for Learning with Tensor Product Kernels and Sparse Training Labels  (2014)  
    • Lecture Notes in Computer Science
    Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR 2014) Tapio Pahikkala
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Hierarchical Agent-based Architecture for Resource Management in Cloud Data Centers  (2014)  
    • IEEE International Conference on Cloud Computing
    2014 IEEE 7th International Conference on Cloud Computing Farahnakian F, Pahikkala T, Liljeberg P, Plosila J
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Hierarchical VM Management Architecture for Cloud Data Centers  (2014)  2014 IEEE 6th International Conference on Cloud Computing Technology and Science Fahimeh Farahnakian, Pasi Liljeberg, Tapio Pahikkala, Juha Plosila, Hannu Tenhunen
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  •   (2014)  
    • IEEE/ACM Transactions on Computational Biology and Bioinformatics
     Michiel Stock, Thomas Fober, Eyke Hüllermeier, Serghei Glinca, Gerhard Klebe, Tapio Pahikkala, Antti Airola, Bernard De Baets, Willem Waegeman
    (
    A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )


  • Multi-Agent based Architecture for Dynamic VM Consolidation in Cloud Data Centers  (2014)  Software Engineering and Advanced Applications (SEAA), 2014 40th EUROMICRO Conference on Fahimeh Farahnakian, Tapio Pahikkala, Pasi Liljeberg, Juha Plosila, Hannu Tenhunen
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)


  • Multi-Label Learning under Feature Extraction Budgets  (2014)  
    • Pattern Recognition Letters
     Pekka Naula, Antti Airola, Tapio Salakoski, Tapio Pahikkala
    (
    A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä )


  • On evaluation of automatically generated clinical discharge summaries  (2014)  
    • CEUR Workshop Proceedings
    Proceedings of the 2nd European Workshop on Practical Aspects of Health Informatics Moen H., Heimonen J., Murtola L., Airola A., Pahikkala T., Terävä V., Danielsson-Ojala R., Salakoski T., Salanterä S.
    (
    A4 Vertaisarvioitu artikkeli konferenssijulkaisussa)



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