Palacky University, Olomouc
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Vilem Vychodil


  • Vilem Vychodil, associate professor of computer science
  • Palacky University, Olomouc
  • 17. listopadu 12, CZ–77146 Olomouc, Czech Republic
  • home page:
  • office fax: +420 585 411 643

Research Summary

  • professional interests: fuzzy relational systems, mathematical logic, relational similarity-based databases, relational data analysis, uncertainty in data
  • publication summary: 1 research monograph (Springer), 30 journal papers (WoS, 32 total), 53 papers in conference proceedings (WoS, 77 total)
  • citation summary: 117 citations excluding self-citations (WoS, ≥270 total), H-index 9 (WoS)

Selected Publications

Jan Outrata and Vilem Vychodil. Fast algorithm for computing fixpoints of Galois connections induced by object-attribute relational data. INFORMATION SCIENCES, 185(1):114-127, FEB 15 2012. [ bib | doi ]
Radim Belohlavek and Vilem Vychodil. Discovery of optimal factors in binary data via a novel method of matrix decomposition. JOURNAL OF COMPUTER AND SYSTEM SCIENCES, 76(1):3-20, FEB 2010. [ bib | doi ]
Petr Krajca, Jan Outrata, and Vilem Vychodil. Parallel algorithm for computing fixpoints of Galois connections. ANNALS OF MATHEMATICS AND ARTIFICIAL INTELLIGENCE, 59(2, SI):257-272, JUN 2010. [ bib | doi ]
Vilem Vychodil. Truth-depressing hedges and BL-logic. FUZZY SETS AND SYSTEMS, 157(15):2074-2090, AUG 1 2006. [ bib | doi ]
Vilem Vychodil. Continuous fuzzy Horn logic. MATHEMATICAL LOGIC QUARTERLY, 52(2):171-186, 2006. [ bib | doi ]


  • SCIS & ISIS 2006, Best Paper Award (Third Prize) R. Belohlavek, V. Vychodil: Reducing the size of fuzzy concept lattices by fuzzy closure operators. Sep. 20–24, 2006; O-okayama Campus, Tokyo Institute of Technology, Tokyo, Japan
  • ICCS 2009, Fastest Algorithm for Computing Formal Concepts Award (First Prize) P. Krajča, J. Outrata, V. Vychodil: FCbO: Close-by-One with New Canonicity Test (Outline of the Algorithm and Its Implementation). Jul. 26–31, 2009; Moscow, Russia


  • Association for Computing Machinery (ACM)
  • Institute of Electrical and Electronics Engineers (IEEE)


  • Ph.D. (Jun 2004), Dept. Algebra and Geometry, UP Olomouc
  • MSc. (Jan 2002), Dept. Computer Science, UP Olomouc

Research Visits

  • Department of Applied Mathematics, Biometrics and Process Control, Faculty of Bioscience Engineering, Ghent University (Belgium), 2 months (Jul–Aug 2006)
  • Department of Systems Science and Industrial Engineering, T. J. Watson School of Applied Science and Engineering, State University of New York at Binghamton (USA), 28 months (Aug 2007–Dec 2009)