Sewon Park (박세원)

I am a postdoctoral researcher hosted by Prof. Andrej Bauer at the Department of Theoretical Computer Science, Inštitut za Matematiko, Fiziko in Mehaniko in Ljubljana, Slovenia. You can reach me at mail@sewonpark.com or sewon.park@imfm.si.

• Postdoctoral Researcher (Inštitut za Matematiko, Fiziko in Mehaniko, Slovenia)

  • Department of Theoretical Computer Science (hosted by Prof. Andrej Bauer)

    • 1 October 2025 – present
• Postdoctoral Researcher (Kyoto University, Japan)

  • Graduate School of Informatics (hosted by Prof. Atsushi Igarashi, Computer Software Group)

    • 1 April 2024 – 30 September 2025
  • Research Institute for Mathematical Sciences (hosted by Prof. Akitoshi Kawamura)

    • 16 October 2021 – 31 March 2024 (1 April 2022 – 31 March 2024 was supported by JSPS Postdoctoral Fellowship)

• PhD at KAIST School of Computing (Daejeon, South Korea) in Computer Science

  • Dissertation: Continuous Abstract Data Types for Verified Computation (supervised by Prof. Martin Ziegler)

    • The abstract published in The Bulletin of Symbolic Logic, 27(4), 531-531. doi:10.1017/bsl.2021.51
  • 28 August 2017 – 20 August 2021
• M.S. at KAIST School of Computing in Computer Science

  • Thesis: Verified Real Computation (supervised by Prof. Martin Ziegler)
  • 31 August 2015 – 18 August 2017
• B.S. at KAIST in Physics (main major) and Industrial System Engineering (double major)

  • 7 February 2011 – 14 August 2015

The authors in all my contributions except one marked with ⭐︎ are listed in the alphabetical order

• Extracting efficient exact real number computation from proofs in constructive type theory (2024)

  • Michal Konečný, Sewon Park, and Holger Thies
  • Oxford University Press – Journal of Logic and Computation (JLC), September 2025, Volume 35, Issue 6 (published online in advance in October 2024)
  • https://doi.org/10.1093/logcom/exae066
  • Preprint available at https://arxiv.org/abs/2202.00891
• ⭐︎Semantics, Specification Logic, and Hoare Logic of Exact Real Computation (2024)

  • Sewon Park, Franz Brauße, Pieter Collins, SunYoung Kim, Michal Konečný, Gyesik Lee, Norbert Müller, Eike Neumann, Norbert Preining, and Martin Ziegler
  • Logical Methods in Computer Science (LMCS), June 24, 2024, Volume 20, Issue 2
  • https://doi.org/10.46298/lmcs-20(2:17)2024

• Formalizing Hyperspaces and Operations on Subsets of Polish spaces over Abstract Exact Real Numbers (2024; submitted)

  • Michal Konečný, Sewon Park, and Holger Thies
  • Preprint available at: https://arxiv.org/abs/2410.13508
• An Imperative Language for Verified Exact Real-Number Computation (2024; submitted)

  • Andrej Bauer, Sewon Park, and Alex Simpson
  • Preprint available at: https://arxiv.org/abs/2409.11946

• ⭐︎Making Rabbit Run for Security Verification of Networked Systems with Unbounded Loops (2025)

  • Sewon Park and Atsushi Igarashi
  • accepted for presentation at Formal Methods in Computer-Aided Design FMCAD'25
• A Coq Formalization of Taylor Models and Power Series for Solving Ordinary Differential Equations (2024)

  • Sewon Park and Holger Thies
  • In: Bertot, Y. and Kutsia, T. and Norrish, M. (eds) 15th International Conference on Interactive Theorem Proving. ITP 2024
  • Leibniz International Proceedings in Informatics (LIPIcs), Volume 309, pp. 30:1-30:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik
  • https://doi.org/10.4230/LIPIcs.ITP.2024.30
• Verified Exact Real Computation with Nondeterministic Functions and Limits (2023)

  • Sewon Park
  • In: Fernau, H., Jansen, K. (eds) Fundamentals of Computation Theory FCT 2023
  • Lecture Notes in Computer Science, vol 14292. Springer, Cham.
  • https://doi.org/10.1007/978-3-031-43587-4_26
• Formalizing Hyperspaces for Extracting Efficient Exact Real Computation (2023)

  • Michal Konečný, Sewon Park, and Holger Thies
  • In: Leroux, J., Lombardy, S., Peleg, D. (eds) 48th International Symposium on Mathematical Foundations of Computer Science. MFCS 2023
  • Leibniz International Proceedings in Informatics (LIPIcs), vol 272. Schloss Dagstuhl – Leibniz-Zentrum für Informatik
  • https://doi.org/10.4230/LIPIcs.MFCS.2023.59
• Certified Computation of Nondeterministic Limits (2022)

  • Michal Konečný, Sewon Park, and Holger Thies
  • In: Deshmukh, J.V., Havelund, K., Perez, I. (eds) NASA Formal Methods. NFM 2022
  • Lecture Notes in Computer Science, vol 13260. Springer, Cham.
  • https://doi.org/10.1007/978-3-031-06773-0_41
• Axiomatic Reals and Certified Efficient Exact Real Computation (2021)

  • Michal Konečný, Sewon Park, and Holger Thies
  • In: Silva A., Wassermann R., de Queiroz R. (eds) Logic, Language, Information, and Computation. WoLLIC 2021
  • Lecture Notes in Computer Science, vol 13038. Springer, Cham
  • https://doi.org/10.1007/978-3-030-88853-4_16
• Computing Periods … (2018)

  • Junhee Cho, Sewon Park, and Martin Ziegler
  • In: Rahman M., Sung WK., Uehara R. (eds) WALCOM: Algorithms and Computation. WALCOM 2018
  • Lecture Notes in Computer Science, vol 10755. Springer, Cham
  • https://doi.org/10.1007/978-3-319-75172-6_12

• Randomized Computation of Continuous Data: Is Brownian Motion Computable? (2019)

  • Fouché, Willem, Hyunwoo Lee, Donghyun Lim, Sewon Park, Matthias Schröder, and Martin Ziegler
  • https://arxiv.org/abs/1906.06684v1
• Computable Operations on Compact Subsets of Metric Spaces with Applications to Fr\’echet Distance and Shape Optimization (2017)

  • Chansu Park, Ji-Won Park, Sewon Park, Dongseong Seon, and Martin Ziegler
  • https://arxiv.org/abs/1701.08402v2

Show more (-2020)

• Abstract data type for exact real numbers and verified computation Slides

  • The 17th International Conference on Computability, Complexity and Randomness CCR2024
  • March 11-15, 2024, Nagoya, Japan
• Verified computation over real numbers and other continuous objects

  • The second Japan-Russia workshop on effective descriptive set theory, computable analysis and automata Link
  • Mar 02 – 04, 2022, Akita, Japan
• Toward verified real computation

  • Continuity, Computability, Constructivity From Logic to Algorithms CCC 2021
  • Sep 20 – 24, 2021, Online

• Verifying iRRAM-like implementation of exact real computation

  • Sewon Park, Holger Thies
  • Continuity, Computability, Constructivity - From Logic to Algorithms CCC 2023
  • Sep 25 – 29, 2023, Kyoto, Japan
• Verified Exact Real Computation with Nondeterministic Functions and Limits

  • Sewon Park
  • 24th International Symposium on Fundamentals of Computation Theory FCT 2023
  • Sep 18 – 21, 2023, Trier, Germany (online talk)
• Towards verified implementation of iterative and interactive real-RAM

  • Sewon Park, Holger Thies
  • Twentieth International Conference on Computability and Complexity in Analysis CCA 2023
  • Sep 07 – 09, 2023, Dubrovnik, Croatia

Show more (-2022)

• Korean Mathematical Society 2024 Spring meeting and KAIST

  • April 17 – 21, 2024, Daejeon Convention Center and KAIST, Daejeon, Korea
• 数学基礎論サマースクール2023 link

  • September 11 – 15, 2023, Meiji University, Tokyo, Japan
• Laboratoire d'informatique de l'École polytechnique

  • Prof. Olivier Bournez
  • September 4 – 6, 2023, Palaiseau, France
• University of Ljubljana

  • Prof. Alex Simpson and Prof. Andrej Bauer
  • February 27 – March 15, 2023, Ljubljana, Slovenia
• Meiji University（明治大学）

  • Prof. Kenshi Miyabe（宮部賢志）
  • February 14 – 17, 2023, Kanagawa, Japan
• University of Ljubljana

  • Prof. Alex Simpson and Prof. Andrej Bauer
  • January – February, 2020, Ljubljana, Slovenia
• Autumn School Proof and Computation PC19

  • September 2019, Herrsching, Germany
• Autumn School Proof and Computation PC18

  • September 2018, Fischbachau, Germany
• University of Trier

  • Prof. Norbert Müller
  • November – December, 2017, Trier, Germany
• Dagstuhl Seminar 17481 Reliable Computation and Complexity on the Reals

  • November 26 – December 1, 2017, Schloss Dagstuhl, Wadern, Germany
• University of Ljubljana

  • Prof. Alex Simpson and Prof. Andrej Bauer
  • October – November, 2017, Ljubljana, Slovenia

• Rabbit: A modeling language for verified networked systems (OCaml)

  • Atsushi Igarashi, Terunobu Inaba, Yutaka Ishikawa, Sewon Park and Taro Sekiyama
  • https://github.com/zt-iot/rabbit
• CAern: Axiomatic Reals and Certified Efficient Exact Real Computation (Coq Proof Assistant)

  • Michal Konečný, Sewon Park and Holger Thies,
  • https://github.com/holgerthies/coq-aern
• Coq-clerical: Clerical Coq Formalization (Coq Proof Assistant)

  • Andrej Bauer and Sewon Park
  • https://github.com/park-sewon/coq-clerical
• Clerical: Command-like expressions for infinite-precision calculations (OCaml)

  • Andrej Bauer and Sewon Park
  • https://github.com/andrejbauer/clerical
• iRRAMx: an extension of iRRAM (C++)

  • Jiman Hwang, Jihoon Hyun, Hyunwoo Lee, Donghyun Lim, Sewon Park, Holger Thies and Martin Ziegler
  • https://github.com/realcomputation/iRRAMx
• iRRAM-Random (C++)

  • Sewon Park
  • https://github.com/park-sewon/iRRAM-Random

• Computability and Complexity in Analysis 2025 CCA2025

  • Organizing Committee member
  • September 23-26 (to be confirmed), 2025, Kyoto, Japan
• The Fourth Korea Logic Day 2025 KLD2025

  • Organizing Committee member
  • January 13-15, 2025, Changwon, Korea
• 2024 Continuity, Computability, Constructivity - From Logic to Algorithms CCC2024

  • Programme Committee member
  • October 2-4, 2024, Nice, France
• The third Korea Logic Day 2024 KLD2024

  • Organizing Committee member
  • 12 January 2024, online
• 2023 Continuity, Computability, Constructivity - From Logic to Algorithms CCC2023

  • Programme Committee and Organizing Committee member
  • September 25 - 29, 2023, Kyoto, Japan
• The second Korea Logic Day 2022 KLD2022

  • Organizing Committee member
  • 14 January 2022, online
• The first Korea Logic Day 2021 KLD2021

  • Organizing Committee member
  • 14 January 2021, online
• The 22nd Japan-Korea Joint Workshop on Algorithms and Computation WAAC2019

  • Organizing Committee member
  • October 4-5, 2019, Daejeon, Korea
• Computability and Complexity in Analysis 2017 CCA2017

  • Organizing Committee member
  • July 24-27, 2017, Daejeon, Korea