Pekka Malo

Research interests

• Machine learning and artificial intelligence
• Evolutionary computation
• Semantic information retrieval
• Statistical natural language processing
• Multiobjective optimization
• News
• 31st European Meeting of Statisticians (EMS) 2017 is organized at Helsinki, July 24-28
• Professional activity
• Member of the Institute of Electrical and Electronics Engineers (IEEE)
• Member of the Institute for Operations Research and the Management Sciences (INFORMS)
• Member of the IEEE Computational Intelligence Society
• Reviewer in journals: IEEE Transactions on Evolutionary Computation; IEEE Transactions on Knowledge and Data Engineering, Journal of the American Society for Information Science and Technology; ACM Transactions on the Web; Physica A; Expert Systems with Applications; Simulation & Gaming; Electronic Commerce Research Journal; International Journal of Information Technology & Decision Making; Annals of Operations Research

Publications

Journal publications

• Korhonen, P., Malo, P., Pajala, T., Ravaja, N., Somervuori, O., Wallenius, J. (2017): "Context Matters: The Impact of Product Type, Emotional Attachment and Information Overload on Choice Quality". European Journal of Operational Research. (forthcoming)
• Sinha, A., Malo, P. and Deb, K. (2017): "A Review on Bilevel Optimization: From Classical to Evolutionary Approaches and Applications". IEEE Transactions on Evolutionary Computation. (forthcoming)
• Sinha, A., Malo, P. and Deb, K. (2017): "Evolutionary Algorithm for Bilevel Optimization using Approximations of the Lower Level Optimal Solution Mapping". European Journal of Operational Research, 257(2), pp. 395-411.
• Sinha, A., Malo, P. and Deb, K. (2017): "Approximated Set-valued Mapping Approach for Handling Multiobjective Bilevel Problems". Computers & Operations Research, 77, pp. 194-209.
• Sinha, A., Rämö, J., Malo, P., Kallio, M. and Tahvonen, O. (2017): "Optimal Management of Naturally Regenerating Uneven-aged Forests". European Journal of Operational Research, 256(3), pp. 886-900.
• Sinha, A., Malo, P., Deb, K., Korhonen, P. and Wallenius, J. (2016): “Solving Bilevel Multi-criterion Optimization Problems with Lower Level Decision Uncertainty”. IEEE Transactions on Evolutionary Computation, 20(2), pp. 199-217.
• Sinha, A., Malo, P. and Kuosmanen, T. (2015): “A Multi-objective Exploratory Procedure for Regression Model Selection”. Journal of Computational and Graphical Statistics, vol. 24(1), pp. 154-182.
• Sinha, A., Malo, P. and Deb, K. (2014): “Test Problem Construction for Single-Objective Bilevel Optimization“. Evolutionary Computation Journal, vol. 22(3), pp. 439-477.
• Malo, P., Sinha, A., Takala, P., Korhonen, P. and Wallenius, J. (2014): "Good debt or bad debt: Detecting semantic orientations in economic texts." Journal of the Association for Information Science and Technology, vol. 65(4), pp. 782-796.
• Sinha, A., Malo, P., Frantsev, A. and Deb, K. (2014): “Finding Optimal Strategies in Multi-Period Multi-Leader-Follower Stackelberg Games Using an Evolutionary Framework.” Computers & Operations Research, vol. 41, pp. 374-385.
• Malo, P., Siitari, P. and Sinha, A. (2013): “Automated Query Learning with Wikipedia and Genetic Programming”. Artificial Intelligence, vol. 194, pp. 86--110.
• Malo, P. and Pennanen, T. (2012): “Reduced form modeling of limit order markets”. Quantitative Finance, vol. 12(7), pp. 1025–1036.
• Malo, P., Sinha, A., Wallenius, J. and Korhonen, P. (2011): “Concept-based Document Classification Using Wikipedia and Value Function”. Journal of the American Society for Information Science and Technology, vol. 62(12), pp. 2496-2511.
• Malo, P. (2009): “Modeling electricity spot and futures price dependence: A multifrequency approach”. Physica A, vol. 388(22), pp. 4763–4779.
• Andreev, A., Kanto, A., and Malo, P. (2007): “Computational Examples of a new method for distribution selection in the Pearson System”. Journal of Applied Statistics, vol. 34(4), pp. 487–506.
• Malo, P. and Kanto, A. (2006): “Evaluating Multivariate GARCH models in the Nordic Electricity Markets”. Communications in Statistics: Simulation and Computation, vol. 35(1), pp. 117--148.

• Conference proceedings

• Suryan, V., Sinha, A., Malo, P., and Deb, K. (2016): “Handling Inverse Optimal Control Problems using Evolutionary Bilevel Optimization.” In: Proceedings of IEEE World Congress on Computational Intelligence (WCCI-2016), pp.1893-1900.

• Sinha, A., Malo, P., and Deb, K. (2016): “Solving Optimistic Bilevel Programs by Iteratively Approximating Lower Level Optimal Value Function.” In: Proceedings of IEEE World Congress on Computational Intelligence (WCCI-2016), pp. 1877-1884.

• Upreti, B., Asatiani, A., and Malo, P. (2016): “To Reach The Clouds: Application of Topic Models to the Meta-review on Cloud Computing Literature.” In: Proceedings of Annual Hawaii International Conference on Systems Sciences (HICSS-2016), pp. 3979-3988.

• Sinha, A., Malo, P., and Deb, K. (2015): “Towards Understanding Bilevel Multi-objective Optimization with Deterministic Lower Level Decisions.” In: Proceedings of Evolutionary Multicriterion Optimization (EMO-2015), Lecture Notes in Computer Science Volume 9018, 2015, pp. 426–443.

• Porokka, A., Sinha, A., Malo, P., and Deb, K. (2015): “Unconstrained Robust Optimization using a Descent-based Crossover Operator.” In: Proceedings of IEEE Congress on Evolutionary Computation (CEC-2015).

• Sinha, A., Malo, P., and Deb, K. (2015): “Transportation Policy Formulation as a Multi-objective Bilevel Optimization Problem.” To appear in: IEEE Congress on Evolutionary Computation (CEC-2015).

• Sinha, A., Malo, P., Xu, P., and Deb, K. (2014): “A Bilevel Optimization Approach to Automated Parameter Tuning.” In: Proceedings of the 16th Annual Genetic and Evolutionary Computation Conference (GECCO-2014), pp. 847–854. ACM New York, NY, USA.

• Sinha, A., Malo, P. and Deb, K. (2014): “An Improved Bilevel Evolutionary Algorithm based on Quadratic Approximations.” In: IEEE Congress on Evolutionary Computation (CEC-2014), pp. 1870–1877. IEEE Press.

• Takala, P., Malo, P., Sinha, A., and Ahlgren, O. (2014): “Gold-standard for topic-specific sentiments in economic texts.” In: Proceedings of the 9th edition of the Language Resources and Evaluation Conference (LREC-2014), 26-31 May, Reykjavik, Iceland.

• Malo, P., Sinha, A., Takala, P., Ahlgren, O. and Lappalainen, I. (2013): "Learning the Roles of Directional Expressions and Domain Concepts in Financial News Analysis." In: Proceedings of IEEE International Conference on Data Mining Workshops (SENTIRE-2013). IEEE Press.

• Sinha, A., Malo, P., Frantsev, A. and Deb, K. (2013) : “Multi-objective Stackelberg Game Between a Regulating Authority and a Mining Company: A Case Study in Environmental Economics“. In: Proceedings of IEEE Congress on Evolutionary Computation (CEC-2013). IEEE Press.

• Frantsev, A., Sinha, A. and Malo, P. (2012): “Finding Optimal Strategies in Multi-period Stackelberg Games Using an Evolutionary Framework”. In: Proceedings of IFAC Workshop on Control Applications of Optimization (IFAC-2012).

• Sinha, A., Malo, P. and Deb, K. (2012): “Unconstrained Scalable Test Problems for Single-Objective Bilevel Optimization”. In: Proceedings of IEEE Congress on Evolutionary Computation (CEC-2012), IEEE Press.

• Ahlgren, O., Malo, P., Sinha, A., Wallenius, J. and Korhonen, P. (2011): “A Dimensionality Reduction Approach to Semantic Document Classification”. In: Proceedings of 2nd Workshop on Semantic Personalized Information Management: Retrieval and Recommendation (SPIM 2011) in conjunction with the 10th International Semantic Web Conference ISWC2011.

• Sinha, A., Kuosmanen, T. and Malo, P. (2011): “Estimation of Efficient Regression Model using a Multi-Objective Procedure”, In: Proceedings of Annual International Conference on Operations Research and Statistics (ORS 2011).

• Malo, P., Siitari, P., Ahlgren, O., Wallenius, J. and Korhonen, P. (2010): “Semantic Content Filtering with Wikipedia and Ontologies”. In: Proceedings of IEEE International Conference on Data Mining Workshops, 2010, pp. 518--526. (Best paper award in Semantic Aspects in Data Mining)

• Talks and tutorials

• Sinha, A., Malo, P. and Deb, K. (2014): Tutorial on "Evolutionary Bilevel Optimization" by at PPSN 2014, September 13-17, Ljubljana, Slovenia.

• Sinha, A., Malo, P., and Deb, K. (2013): Tutorial on Bilevel Optimization at GECCO 2013, July 6-10, Amsterdam, Netherlands.

• Sinha, A., Malo, P., and Deb, K. (2013): “Evolutionary approaches to handling bilevel optimization problems” at BEACON Center, Michigan State University, February 2013, East Lansing, MI, USA.

• Malo, P., Sinha, A., Korhonen, P. and Wallenius, J. (2012): “Document Classification: A Many Criteria Optimization Problem”. Abstract published in: Proceedings of INFORMS 2012 Annual Meeting, Session on Decision-making and Optimization Problems with Many Criteria, Phoenix, AZ, October 14-17, 2012.

• Sinha, A., Malo, P. and Deb, K. (2012): “Preference-based Evolutionary Algorithm for Multi-objective Bilevel Optimization”. Abstract published in: 25th European Conference on Operational Research (EURO 2012), Session on Hybrid Evolutionary Multiobjective Optimization Algorithms, Vilnius, July 8-11, 2012.

• Malo, P., Sinha, A., Ahlgren, O., Wallenius, J. and Korhonen, P. (2011): “A Dimensionality Reduction Approach for Semantic Information Retrieval”. Abstract published in: Proceedings of The 21st International Conference on Multiple Criteria Decision Making (MCDM 2011), Session on Behavioral Issues in Multiple Criteria Decision Making, June 13-17, 2011.

• Sinha, A. and Malo, P. (2011): “Solving Bilevel Problems using an Evolutionary Approach”. Abstract published in: Proceedings of INFORMS 2011 Annual Meeting, Session on Multiobjective Programming, North Carolina, November 13-16, 2011.

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