Kimmo Vehkalahti, Statistician / Data Scientist

Presentations in conferences

  • Vehkalahti, Kimmo (2015). Preliminary results on the relationship between learning approaches and students' achievements on a Social Statistics introductory course in Finland. 60th International Statistical Institute World Statistics Congress (ISI2015), Rio de Janeiro, Brazil, 26-31 Jul 2015.
  • Vehkalahti, Kimmo & Nelimarkka, Matti (2015). Community learning with a 24/7 chat using smartphones. IASE 2015 Satellite Conference, Rio de Janeiro, Brazil, 22-24 Jul 2015.
  • Vehkalahti, Kimmo (2015). Teaching matrices within Statistics. 24th International Workshop on Matrices and Statistics (IWMS2015), Haikou, Hainan, China, 25-28 May 2015.
  • Vehkalahti, Kimmo & Sund, Reijo (2014). Survo R - editorial computing environment for data analysis. 7th International Conference of the ERCIM WG on Computational and Methodological Statistics (ERCIM 2014), Pisa, Italy, 6-8 Dec 2014.
  • Vehkalahti, Kimmo (2014). Changing the course: from boring numeracy to inspiring literacy. 9th International Conference on Teaching Statistics (ICOTS9), Flagstaff, Arizona, USA, 13-18 Jul 2014.
  • Vehkalahti, Kimmo & Sund, Reijo (2013). Solving a 6x6 Survo puzzle using matrix combinatorial products. 23rd International Workshop on Matrices and Statistics (IWMS2014), Ljubljana, Slovenia, 8-12 Jun 2014.
  • Vehkalahti, Kimmo & Sund, Reijo (2013). Teaching matrix computations using SURVO R. 22nd International Workshop on Matrices and Statistics, Toronto, Ontario, Canada, 12-15 Aug 2013.
  • Gritsenko, Daria & Vehkalahti, Kimmo (2013). Varying patterns in vessel operation quality and their governance implications. IFSPA2013: International Forum on Shipping, Ports and Airports, Hong Kong, China, 2-5 Jun 2013.
  • Vehkalahti, Kimmo & Sund, Reijo (2012). Solving combinatorial matrix problems with Khatri-Rao and Hadamard products using the editorial approach of Muste. Eighth International Triennial Calcutta Symposium on Probability and Statistics, Kolkata, India, 27-30 Dec 2012.
  • Sund, Reijo; Vehkalahti, Kimmo & Mustonen, Seppo (2012). Muste - editorial computing environment within R. 20th Symposium of Computational Statistics, COMPSTAT, Limassol, Cyprus, 27-31 Aug 2012.
  • Virtanen, Jorma; Vehkalahti, Kimmo & Vehkalahti, Miira (2012). Bacterial transmission from mother to child: a multiple correspondence analysis as a method of visualisation, 5th MIOHR Meeting, Graz, Austria, 10-14 Apr 2012.
  • Vehkalahti, Kimmo & Sund, Reijo (2011). First 50 years of Survo: from a statistical program to an interactive environment for data processing, CARME 2011 - Correspondence Analysis and Related Methods: 6th conference on multidimensional graphical techniques and the analysis of large sets of categorical data. Rennes, France, 8-11 Feb 2011.
  • Korhonen, Virpi & Vehkalahti, Kimmo (2010). Exploring package value for the consumer: framework and segmentation. 17th IAPRI World Conference on Packaging, Tianjin, China, 12-15 Oct 2010.
  • Valaste, Maria; Lehtonen, Risto & Vehkalahti, Kimmo (2010). Multiple Imputation for measurement error correction in survey data. European Conference on Quality in Official Statistics, Helsinki, Finland, 3-6 May 2010.
  • Valaste, Maria; Lehtonen, Risto & Vehkalahti, Kimmo (2010). Measurement Errors in Surveys: A Multiple Imputation Approach, Conference on Indicators and Survey Methodology 2010, Vienna, Austria, 24-26 February 2010.
  • Paavonen, E. Juulia; Partanen, Jukka M.; Valaste, Maria; Vehkalahti, Kimmo & Lahikainen, Anja Riitta (2007). Television viewing is associated with psychiatric symptoms in 5-6 -year-old children. 13th International Congress of European Society for Child and Adolescent Psychiatry, Florence, Italy, 25-29 August 2007.
  • Salimäki, A.; Vehkalahti, K. & Ylikorkala, A. (2007). Age Differences in Withdrawal as Response to Injustice. In J. Greenberg & A. Salimäki (Chairs) Under-explored and under-explained individual differences in organizational justice. Symposium presented at the annual meeting of the Academy of Management, Philadelphia, PA. 3.-8.8.2007.
  • Vehkalahti, Kimmo (2007). Factor analysis and the reliability of measurement scales. International Meeting of the Psychometric Society, Tokyo, Japan, 9-13 July 2007.
  • Vehkalahti, Kimmo (2007). Some comments on magic squares and Survo puzzles. Invited talk in 16th International Workshop on Matrices and Statistics, Windsor, Ontario, Canada. 1-3 June 2007.
  • Vehkalahti, Kimmo (2007). Matrices as building blocks of measurement framework. Invited talk at McGill University, Montréal, Quebec, Canada, 30 May 2007.
  • Vehkalahti, Kimmo (2007). Enhancing the documentation by leaving useful traces. MAT TRIAD-07, Bedlewo, Poland, 22-24 March 2007.
  • Joutsenvirta, Taina & Vehkalahti, Kimmo (2005). Importance of Learning Community in Blended Learning, Case: a statistics methodology course. LeTTET'05: Learning Technology and Telematics in Education and Training 2005, University of Joensuu, Savonlinna, Finland. 3-5 August 2005.
  • Vehkalahti, Kimmo (2005). Linear Regression Model with Measurement Framework. 55th Session of the International Statistical Institute, Sydney, Australia. 5-12 April 2005.
  • Vehkalahti, Kimmo (2005). Leaving useful traces when working with matrices. 14th International Workshop on Matrices and Statistics, Auckland, New Zealand. 29 March - 1 April 2005.
  • Vehkalahti, K. (2004). Erilaisuus, yhteisöllisyys ja oppiminen menetelmäkurssilla. [Dissimilarity, communality and learning on a method course, in Finnish]. Kasvatustieteen päivät 2004, Suomen kasvatustieteellinen seura ja Joensuun yliopisto 25 November 2004.
  • Vehkalahti, Kimmo (1997). Statistical Properties of Reliability Measures. Proceedings of Tartu Conference on Computational Statistics & Statistical Education. Ed. by E.-M. Tiit. University of Tartu, Estonia, pp. 135-139.
  • Mustonen, Seppo & Vehkalahti, Kimmo (1997). Survo as an environment for statistical research and teaching. 51st Session of the International Statistical Institute, Istanbul. 18-26 August 1997. Bulletin of ISI, Istanbul, Proceedings 2, 69-72.
  • Vehkalahti, Kimmo (1996). Statistical Properties of Reliability Measures. Paper presented in 16th Nordic Conference of Mathematical Statistics in Lahti, Finland, 18-22 August 1996.