Journal Conf Book Chapters Misc


Journals

  1. Simon's Congruence Pattern Matching,
    Sungmin Kim, Sang-Ki Ko and Yo-Sub Han
    To appear in Theoretical Computer Science (TCS)

  2. On the Decidability of Infix Inclusion Problem,
    Hyunjoon Cheon, Joonghyuk Hahn and Yo-Sub Han
    To appear in Theory of Computing Systems

  3. ARED: Automata-based Runtime Estimation for Distributed Systems using Deep Learning,
    Hyunjoon Cheon, Jinseung Ryu, Jaecheol Ryou, Chan Yeol Park and Yo-Sub Han
    In Cluster Computing, Vol. 26, 2429--2641, Oct. 2023 [link]

  4. On Simon's Congruence Closure of a String,
    Sungmin Kim, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 972, 114078, Sep. 2023 [link]

  5. An Empirical Study on Multimodal Activity Clustering of Android Applications,
    Sungmin Choi, Hyeon-Tae Seo and Yo-Sub Han
    In IEEE Access, Vol. 11, 53598--53614, Jun. 2023 [link]

  6. Deciding path size of nondeterministic (and input-driven) pushdown automata,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 939, 170--181, Jan. 2023 [link]

  7. Impossibility of Strict Assembly of Infinite Fractals by Oritatami,
    Yo-Sub Han and Hwee Kim
    In Natural Computing, Vol 20, No. 4, 691--701, December 2021 [link]

  8. Left is Better Than Right for Reducing Nondeterminism of NFAs,
    Sang-Ki Ko and Yo-Sub Han
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 32, No. 5, 531--550, August 2021 [link]

  9. Generalizations of Code Languages with Marginal Errors,
    Sang-Ki Ko, Yo-Sub Han and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 32, No. 5, 509--529, August 2021 [link]

  10. Consensus String Problem for Multiple Regular Languages,
    Yo-Sub Han, Sang-Ki Ko, Timothy Ng and Kai Salomaa
    In Information and Computation (I&C), Vol. 279, August 2021 [link]

  11. A General Architecture of Oritatami Systems for Simulating Arbitrary Finite Automata,
    Yo-Sub Han, Hwee Kim, Yusei Masuda and Shinnosuke Seki
    In Theoretical Computer Science (TCS), Vol. 870, 29--52, May 2021 [link]

  12. Closest Substring Problems for Regular Languages,
    Yo-Sub Han, Sang-Ki Ko, Timothy Ng and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 862, 144--154, March 2021 [link]

  13. Transcript Design Problem of Oritatami Systems,
    Yo-Sub Han, Hwee Kim and Shinnosuke Seki
    In Natural Computing, Vol. 19, 323--335, June 2020

  14. Site-directed Insertion: Language Equations and Decision Problems,
    Da-Jung Cho, Yo-Sub Han, Kai Salomaa and Taylor Smith
    In Theoretical Computer Science (TCS), Vol. 798, 40--51, December 2019

  15. Bound-Decreasing Duplication System,
    Da-Jung Cho, Yo-Sub Han and Hwee Kim
    In Theoretical Computer Science (TCS), Vol. 793, 152--168, November 2019

  16. Alignment Distance of Regular Tree Languages,
    Yo-Sub Han and Sang-Ki Ko
    In Theoretical Computer Science (TCS), Vol. 787, 127--137, October 2019

  17. Self-attraction Removal from Oritatami Systems,
    Yo-Sub Han, Hwee Kim, Trent Rogers and Shinnosuke Seki
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 30, No. 6&7, 1047--1067, September 2019

  18. Ruleset Optimization on Isomorphic Oritatami Systems,
    Yo-Sub Han and Hwee Kim
    In Theoretical Computer Science (TCS), Vol. 785, 128--139, September 2019

  19. An abusive text detection system based on enhanced abusive and non-abusive word lists,
    Ho-Suk Lee, Hong-Rae Lee, Jun-U Park and Yo-Sub Han
    In Decision Support Systems, Vol. 113, 22--31, September 2018

  20. Growth Rate of Minimum Branching,
    Alexandros Palioudakis, Yo-Sub Han and Kai Salomaa
    In Journal of Automata, Languages and Combinatorics (JALC), Vol. 23(1-3), 281--292, April 2018

  21. Nondeterministic seedless oritatami systems and hardness of testing their equivalence,
    Yo-Sub Han, Hwee Kim, Makoto Ota and Shinnosuke Seki
    In Natural Computing, Vol. 17, 67--79, Mar. 2018 [pdf]

  22. Outfix-Guided Insertion,
    Da-Jung Cho, Yo-Sub Han, Timothy Ng and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 701, 70--84, Nov. 2017 [pdf]

  23. Pseudoknot-Generating Operation,
    Da-Jung Cho, Yo-Sub Han, Timothy Ng and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 695, 52--64, Oct. 2017 [pdf]

  24. State Complexity of k-Parallel Tree Concatenation,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Fundamenta Informaticae (FI), Vol. 154, 185--199, August 2017 [pdf]

  25. State Complexity of Permutation on Finite Languages over a Binary Alphabet,
    Da-Jung Cho, Daniel Goc, Yo-Sub Han, Sang-Ki Ko, Alexandros Palioudakis and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 682, 67--78, June 2017 [pdf]

  26. Ambiguity, Nondeterminism and State Complexity of Finite Automata,
    Yo-Sub Han, Arto Salomaa and Kai Salomaa
    In Acta Cybernetica Vol. 23(2), 141--157, May 2017 [pdf]

  27. Complexity of Regular Tree Languages for Tree Matching,
    Sang-Ki Ko, Ha-Rim Lee and Yo-Sub Han
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 27, No. 8 965--979, December 2016 [pdf]

  28. State Complexity of Insertion,
    Yo-Sub Han, Sang-Ki Ko, Timothy Ng and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 27, No. 7 863--878, November 2016 [pdf]

  29. Operational State Complexity of Subtree-Free Regular Tree Languages,
    Sang-Ki Ko, Hae-Sung Eom and Yo-Sub Han
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 27, No. 6 705--724, September 2016 [pdf]

  30. Duplications and Pseudo-Duplications,
    Da-Jung Cho, Yo-Sub Han, Hwee Kim, Alexandros Palioudakis, Kai Salomaa
    In International Journal of Unconventional Computing (IJUC), Vol. 12(2-3), 145--167, May 2016

  31. OMPPM: Online Multiple Palindrome Pattern Matching,
    Hwee Kim and Yo-Sub Han
    In Bioinformatics, Vol. 32(8), 1151--1157, April 2016 [pdf]

  32. Approximate Matching between a Context-Free Grammar and a Finite-State Automaton,
    Sang-Ki Ko, Yo-Sub Han and Kai Salomaa
    In Information and Computation (I&C), Vol. 247, 278--289, April 2016 [pdf]

  33. State Complexity of Basic Operations on Non-Returning Regular Languages,
    Hae-Sung Eom, Yo-Sub Han and Galina Jirásková
    In Fundamenta Informaticae (FI), Vol. 144(2), 161--182, March 2016 [pdf]

  34. Pseudo-Inversion: Closure Properties and Decidability,
    Da-Jung Cho, Yo-Sub Han, Shin-Dong Kang, Hwee Kim, Sang-Ki Ko and Kai Salomaa
    In Natural Computing, Vol. 15, 31--39, March 2016 [pdf]

  35. State Complexity of Deletion and Bipolar Deletion,
    Yo-Sub Han, Sang-Ki Ko, Kai Salomaa
    In Acta Informatica, Vol. 53, 67--85, February 2016 [pdf]

  36. State Complexity of Inversion Operations,
    Da-Jung Cho, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 610, 2--12, January 2016 [pdf]

  37. State complexity of Kleene-star operations on regular tree languages,
    Yo-Sub Han, Sang-Ki Ko, Xiaoxue Piao and Kai Salomaa
    In Acta Cybernetica Vol. 22(2), 403--422, November 2015 [pdf]

  38. State Complexity of Boundary of Prefix-Free Regular Languages,
    Hae-Sung Eom and Yo-Sub Han
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 26, No. 6 697--707, September 2015 [pdf]

  39. Non-overlapping Inversion on Strings and Languages,
    Hwee Kim and Yo-Sub Han
    In Theoretical Computer Science (TCS), Vol. 592, 9--22, August 2015 [pdf]

  40. A Recommendation Model Using the Bandwagon Effect for E-Marketing Purposes in IoT,
    Sang-Min Choi, Hyein Lee, Yo-Sub Han, Ka Lok Man and Woon Kian Chong
    In International Journal of Distributed Sensor Networks, Vol. 2015, July 2015 [pdf]

  41. Alignment with Non-Overlapping Inversions and Translocations on Two Strings,
    Da-Jung Cho, Yo-Sub Han and Hwee Kim
    In Theoretical Computer Science (TCS), Vol. 575, 90--101, April 2015 [pdf]

  42. State complexity of k-union and k-intersection for prefix-free regular languages,
    Hae-Sung Eom, Yo-Sub Han and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 26, No. 2 211--227, February 2015 [pdf]

  43. Decidability of Involution Hypercodes,
    Da-Jung Cho, Yo-Sub Han and Sang-Ki Ko
    In Theoretical Computer Science (TCS), Vol. 550, 90--99, September 2014 [pdf]

  44. A Speculative Parallel DFA Membership Test for Multicore, SIMD and Cloud Computing Environments,
    Yousun Ko, Minyoung Jung, Yo-Sub Han and Bernd Burgstaller
    In International Journal of Parallel Programming (IJPP), Vol. 42, 456---489, June 2014 [pdf]

  45. The Edit-Distance between a Regular Language and a Context-Free Language,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 24, No. 7 1067--1082, November 2013 [pdf]

  46. State Elimination Heuristics for Short Regular Expressions,
    Yo-Sub Han
    In Fundamenta Informaticae (FI), Vol. 128(4), 445--462, November 2013 [pdf]

  47. State Complexity of Combined Operations for Suffix-Free Regular Languages,
    Hae-Sung Eom and Yo-Sub Han
    In Theoretical Computer Science (TCS), Vol. 510, 87--93, October 2013 [pdf]

  48. An Improved Prefix-Free Regular-Expression Matching,
    Yo-Sub Han
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 24, No. 5, 679--685, August 2013 [pdf]

  49. Representative Reviewers for Internet Social Media,
    Sang-Min Choi and Yo-Sub Han
    In Expert Systems with Applications, Vol. 40, 1274--1282, March 2013 [pdf]

  50. Analysis of a cellular automaton model for car traffic with a junction,
    Yo-Sub Han and Sang-Ki Ko
    In Theoretical Computer Science (TCS), Vol. 450, 54--67, September 2012 [pdf]

  51. A Movie Recommendation Algorithm based on Genre Correlations,
    Sang-Min Choi, Sang-Ki Ko and Yo-Sub Han
    In Expert Systems with Applications, Vol. 39, 8079--8085, July 2012 [pdf]

  52. Computing User Reputation in a Social Network of Web 2.0,
    Yo-Sub Han, Laehyun Kim and Jeong-Won Cha
    In Computing and Informatics, Vol. 31, No. 2, 447--462, 2012 [pdf]

  53. Overlap-Free Languages and Solid Codes,
    Yo-Sub Han and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 22, No. 5, 1197--1209, August 2011 [pdf]

  54. Ranking Parameters based on Social Network for User-generated Video Contents,
    Laehyun Kim, Lisa Wiyartanti, Hyunchul Cho, Yo-Sub Han and Jeong-Won Cha
    In Information-An International Interdisciplinary Journal, Vol. 13, No. 5, 1667--1678, September 2010 [pdf]

  55. On the Linear Number of Matching Substrings,
    Yo-Sub Han
    In Journal of Universal Computer Science, Vol. 16, 715--728, March 2010 [pdf]

  56. Nondeterministic State Complexity of Nested Word Automata,
    Yo-Sub Han and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 410, 2961--2971, August 2009 [pdf]

  57. State Complexity of Basic Operations on Suffix-Free Regular Languages,
    Yo-Sub Han and Kai Salomaa
    In Theoretical Computer Science (TCS), Vol. 410, 2537--2548, June 2009 [pdf]

  58. Nondeterministic State Complexity of Basic Operations for Prefix-free Regular Languages,
    Yo-Sub Han, Kai Salomaa and Derick Wood
    In Fundamenta Informaticae (FI), Vol. 90(1-2), 93--106, 2009 [pdf]

  59. Adaptability in an agent-based virtual organisation,
    Grzegorz Frackowiak, Maria Ganzha, Maciej Gawinecki, Marcin Paprzycki, Michal Szymczak, Costin Badica, Yo-Sub Han and Myon-Woong Park
    In International Journal of Agent-Oriented Software Engineering (IJAOSE), Vol. No. 2/3, 188--211, 2009 [pdf]

  60. Generalizations of One-Deterministic Regular Languages,
    Yo-Sub Han and Derick Wood
    In Information and Computation (I&C), Vol. 206, 1117--1125, 2008 [pdf]

  61. State Complexity of Union and Intersection of Finite Languages,
    Yo-Sub Han and Kai Salomaa
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 19, No. 3, 581--595, 2008 [pdf]

  62. Simple-Regular Expressions and Languages,
    Yo-Sub Han, Gerhard Trippen and Derick Wood
    In Journal of Automata, Languages and Combinatorics (JALC), Vol. 12(1/2),181--194, 2007 [pdf]

  63. Outfix-free Regular Languages and Prime Outfix-free Decomposition,
    Yo-Sub Han and Derick Wood
    In Fundamenta Informaticae (FI), Vol. 81(4), 441--457, 2007 [pdf]

  64. Prefix-Free Regular Languages and Pattern Matching,
    Yo-Sub Han, Yajun Wang and Derick Wood
    In Theoretical Computer Science (TCS), Vol. 389, 307--317, 2007 [pdf]

  65. On the Existence of Prime Decompositions,
    Yo-Sub Han, Arto Salomaa, Kai Salomaa, Derick Wood and Sheng Yu
    In Theoretical Computer Science (TCS), Vol. 376, 60--69, 2007 [pdf]

  66. Obtaining Shorter Regular Expressions from Finite-State Automata,
    Yo-Sub Han and Derick Wood
    In Theoretical Computer Science (TCS), Vol. 370, 110--120, 2007 [pdf]

  67. Intercode Regular Languages,
    Yo-Sub Han, Kai Salomaa and Derick Wood
    In Fundamenta Informaticae (FI), Vol. 76, 113--128, 2007 [pdf]

  68. Infix-free Regular Expressions and Languages,
    Yo-Sub Han, Yajun Wang and Derick Wood
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 17, No.2, 379--393, 2006 [pdf]

  69. The Generalization of Generalized Automata: Expression Automata,
    Yo-Sub Han and Derick Wood
    In International Journal of Foundations of Computer Science (IJFCS), Vol. 16, No. 3, 499--510, 2005 [pdf]

Conferences

  1. SuperST: Superficial Self-Training for Few-Shot Text Classification,
    Ju-Hyoung Lee, Joonghyuk Hahn, Hyeon-Tae Seo, Jiho Park and Yo-Sub Han
    To appear in Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)

  2. ATHENA: Mathematical Reasoning with Thought Expansion,
    JB. Kim, Hazel Kim, Joonghyuk Hahn and Yo-Sub Han
    In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing (EMNLP 2023), 16315--16327, 2023 [pdf]

  3. ConPrompt: Pre-training a Language Model with Machine-Generated Data for Implicit Hate Speech Detection,
    Youngwook Kim, Shinwoo Park, Youngsoo Namgoong and Yo-Sub Han
    In Findings of the 2023 Conference on Empirical Methods in Natural Language Processing (EMNLP-Findings 2023), 10964--10980, 2023 [pdf]

  4. GDA: Grammar-based Data Augmentation for Text Classification using Slot Information,
    Joonghyuk Hahn, Hyunjoon Cheon, Elizabeth Grace Orwig, Su-Hyeon Kim, Sang-Ki Ko and Yo-Sub Han
    In Findings of the 2023 Conference on Empirical Methods in Natural Language Processing (EMNLP-Findings 2023), 7291--7306, 2023 [pdf]

  5. M-equivalence of Parikh Matrix over a Ternary Alphabet,
    Joonghyuk Hahn, Hyunjoon Cheon and Yo-Sub Han
    In Proceedings of the 27th International Conference on Implementation and Application of Automata (CIAA'23), LNCS 14151, 141--152, 2023
    *Note: the conference version contains a minor bug and this [PDF] is a corrected version.

  6. Smaller Representation of Compiled Regular Expressions,
    Sicheol Sung, Sang-Ki Ko and Yo-Sub Han
    In Proceedings of the 27th International Conference on Implementation and Application of Automata (CIAA'23), LNCS 14151, 290--301, 2023 [link]

  7. Existential and Universal Width of Alternating Finite Automata,
    Yo-Sub Han, Sungmin Kim, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 25th International Conference on Descriptional Complexity of Formal Systems (DCFS'23), LNCS 13918, 51--64, 2023 [link]

  8. On the Simon's Congruence Neighborhood of Languages,
    Sungmin Kim, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 27th International Conference on Developments in Language Theory (DLT'23), LNCS 13911, 168-181, 2023 [link]

  9. Weak Inverse Neighborhood of Languages,
    Hyunjoon Cheon and Yo-Sub Han
    In Proceedings of the 27th International Conference on Developments in Language Theory (DLT'23), LNCS 13911, 61-73, 2023 [link]

  10. Contrastive Learning with Keyword-based Data Augmentation for Code Search and Code Question Answering,
    Shinwoo Park, Youngwook Kim and Yo-Sub Han
    In Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics (EACL'23), 3609--3619, 2023 [pdf]

  11. Automated Grading of Regular Expressions,
    Su-Hyeon Kim, Youngwook Kim, Yo-Sub Han, Hyeonseung Im and Sang-Ki Ko
    In Proceedings of the 32nd European Symposium on Programming (ESOP'23), LNCS 13990, 90--112, 2023 [link]

  12. Simon's Congruence Pattern Matching,
    Sungmin Kim, Sang-Ki Ko and Yo-Sub Han
    In Proceedings of the 33rd International Symposium on Algorithms and Computation (ISAAC'22), 60:1--60:17, 2022 [link]

  13. Boosting Code Summarization by Embedding Code Structures,
    Jikyoeng Son, Joonghyuk Hahn, HyeonTae Seo and Yo-Sub Han
    In Proceedings of the 29th International Conference on Computational Linguistics (COLING'22), 5966--5977, 2022 [pdf]

  14. Generalizable Implicit Hate Speech Detection using Contrastive Learning,
    Youngwook Kim, Shinwoo Park and Yo-Sub Han
    In Proceedings of the 29th International Conference on Computational Linguistics (COLING'22), 6667--6679, 2022 [pdf]

  15. On Simon's Congruence Closure of a String,
    Sungmin Kim, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 24th International Conference on Descriptional Complexity of Formal Systems (DCFS'22), LNCS 13439, 127--141, 2022 [link]

  16. How to Settle the ReDoS Problem: Back to the Classical Automata Theory,
    Sicheol Sung, Hyunjoon Cheon and Yo-Sub Han
    In Proceedings of the 26th International Conference on Implementation and Application of Automata (CIAA'22), LNCS 13266, 34--49, 2022 [link]

  17. On the Decidability of Infix Inclusion Problem,
    Hyunjoon Cheon, Joonghyuk Hahn and Yo-Sub Han
    In Proceedings of the 26th International Conference on Developments in Language Theory (DLT'22), LNCS 13257, 115-126, 2022 [link]

  18. ALP: Data Augmentation using Lexicalized PCFGs for Few-Shot Text Classification,
    Hazel Kim, Daecheol Woo, Seong Joon Oh, Jeong-Won Cha and Yo-Sub Han
    In Proceedings of the 36th AAAI Conference on Artificial Intelligence (AAAI-22), 10894-10902, 2022 [pdf]

  19. MultiFix: Learning to Repair Multiple Errors by Optimal Alignment Learning,
    HyeonTae Seo, Yo-Sub Han and Sang-Ki Ko
    In Findings of the 2021 Conference on Empirical Methods in Natural Language Processing (EMNLP-Findings 2021), 4850--4855, 2021 [link]

  20. Self-Training using Rules of Grammar for Few-Shot NLU,
    Joonghyuk Hahn, Hyunjoon Cheon, Kyuyeol Han, Cheongjae Lee, Junseok Kim and Yo-Sub Han
    In Findings of the 2021 Conference on Empirical Methods in Natural Language Processing (EMNLP-Findings 2021), 4576--4581, 2021 [link]

  21. Most Pseudo-copy Languages Are Not Context-free,
    Hyunjoon Cheon, Joonghyuk Hahn, Yo-Sub Han and Sang-Ki Ko
    In Proceedings of the 27th Annual International Computing and Combinatorics Conference (COCOON'21), 189--200, 2021 [pdf]

  22. Do Bugs Propagate? An Empirical Analysis of Temporal Correlations Among Software Bugs,
    Xiaodong Gu, Yo-Sub Han, Sunghun Kim and Hongyu Zhang
    In Proceedings of the 35th European Conference on Object-Oriented Programming (ECOOP 2021), 11:1--11:21, 2021 [pdf]

  23. SALNet: Semi-supervised Few-Shot Text Classification with Attention-based Lexicon Construction,
    Ju-Hyoung Lee, Sang-Ki Ko and Yo-Sub Han
    In Proceedings of the 35th AAAI Conference on Artificial Intelligence (AAAI-21), 13189--13198, 2021 [pdf]

  24. SW Runtime Estimation using Automata Theory and Deep Learning on HPC,
    Hyunjoon Cheon, Jinseung Ryu, Chan Yeol Park and Yo-Sub Han
    In Proceedings of 2020 IEEE International Conference on Autonomic Computing and Self-Organizing Systems Companion (ACSOS-C), 7--12, 2020

  25. Computing the Shortest String and the Edit-Distance for Parsing Expression Languages,
    Hyunjoon Cheon and Yo-Sub Han
    In Proceedings of the 24th International Conference on Developments in Language Theory (DLT'20), LNCS 12086, 43--54, 2020

  26. SoftRegex: Generating Regex from Natural Language Description using Softened Regex Equivalence,
    Jun-U Park, Sang-Ki Ko, Marco Cognetta and Yo-Sub Han
    In Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing (EMNLP-IJCNLP), 6426--6432, 2019

  27. Detecting context abusiveness using hierarchical deep learning,
    Ju-Hyoung Lee, Jun-U Park, Jeong-Won Cha and Yo-Sub Han
    In Proceedings of the Second Workshop on Natural Language Processing for Internet Freedom: Censorship, Disinformation, and Propaganda, 10--19, 2019

  28. The Relative Edit-Distance Between Two Input-Driven Languages,
    Hyunjoon Cheon, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 23rd International Conference on Developments in Language Theory (DLT'19), LNCS 11647, 127--139, 2019

  29. Online Infix Probability Computation for Probabilistic Finite Automata,
    Marco Cognetta, Yo-Sub Han and Soon Chan Kwon
    In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics (ACL'19), 5332--5337, 2019

  30. A General Architecture of Oritatami Systems for Simulating Arbitrary Finite Automata,
    Yo-Sub Han, Hwee Kim, Yusei Masuda and Shinnosuke Seki
    In Proceedings of the 24th International Conference on Implementation and Application of Automata (CIAA'19), LNCS 11601, 146--157, 2019

  31. Limited Nondeterminism of Input-Driven Pushdown Automata: Decidability and Complexity,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 21st International Conference on Descriptional Complexity of Formal Systems (DCFS'19), LNCS 11612, 158--170, 2019

  32. Incremental Computation of Infix Probabilities for Probabilistic Finite Automata,
    Marco Cognetta, Yo-Sub Han and Soon Chan Kwon
    In Proceedings of 2018 Conference on Empirical Methods in Natural Language Processing (EMNLP'18), 2732--2741, 2018

  33. Transcript Design Problem of Oritatami Systems,
    Yo-Sub Han, Hwee Kim and Shinnosuke Seki
    In Proceedings of the 24th International Conference on DNA Computing and Molecular Programming (DNA24), LNCS 11145, 139--154, 2018

  34. Construction of Geometric Structure by Oritatami System,
    Yo-Sub Han and Hwee Kim
    In Proceedings of the 24th International Conference on DNA Computing and Molecular Programming (DNA24), LNCS 11145, 173--188, 2018

  35. Site-Directed Deletion,
    Da-Jung Cho, Yo-Sub Han, Hwee Kim and Kai Salomaa
    In Proceedings of the 22nd International Conference on Developments in Language Theory (DLT'18), LNCS 11088, 219--230, 2018

  36. Closest Substring Problems for Regular Languages,
    Yo-Sub Han, Sang-Ki Ko, Timothy Ng and Kai Salomaa
    In Proceedings of the 22nd International Conference on Developments in Language Theory (DLT'18), LNCS 11088, 392--403, 2018

  37. Online Stochastic Pattern Matching,
    Marco Cognetta and Yo-Sub Han
    In Proceedings of the 23rd International Conference on Implementation and Application of Automata (CIAA'18), LNCS 10977, 121--132, 2018

  38. Site-Directed Insertion: Decision Problems, Maximality and Minimality,
    Da-Jung Cho, Yo-Sub Han, Kai Salomaa and Taylor Smith
    In Proceedings of the 20th International Conference on Descriptional Complexity of Formal Systems (DCFS'18), LNCS 10952, 49--61, 2018

  39. Ruleset Optimization on Isomorphic Oritatami Systems,
    Yo-Sub Han and Hwee Kim
    In Proceedings of the 23rd International Conference on DNA Computing and Molecular Programming (DNA23), LNCS 10467, 33--45, 2017

  40. Self-attraction Removal from Oritatami Systems,
    Yo-Sub Han, Hwee Kim, Trent Rogers and Shinnosuke Seki
    In Proceedings of the 19th International Conference on Descriptional Complexity of Formal Systems (DCFS'17), LNCS 10316, 164--176, 2017

  41. Alignment Distance of Regular Tree Languages,
    Yo-Sub Han and Sang-Ki Ko
    In Proceedings of the 22nd International Conference on Implementation and Application of Automata (CIAA'17), LNCS 10329, 126--137, 2017

  42. Template-based Pattern Matching in Two-dimensional Arrays,
    Yo-Sub Han and Daniel Prusa
    In Proceedings of the 18th International Workshop on Combinatorial Image Analysis (IWCIA'17), LNCS 10256, 79--92, 2017

  43. Deduplication on Finite Automata and Nested Duplication Systems,
    Da-Jung Cho, Yo-Sub Han and Hwee Kim
    In Proceedings of Unconventional Computation & Natural Computation 2017 (UCNC'17), LNCS 10240, 196--207, 2017

  44. Consensus String Problem for Multiple Regular Languages,
    Yo-Sub Han, Sang-Ki Ko, Timothy Ng and Kai Salomaa
    In Proceedings of the 11th International Conference on Language and Automata Theory and Applications (LATA'17), LNCS 10168, 196--207, 2017

  45. Edit-Distance between Visibly Pushdown Languages,
    Yo-Sub Han and Sang-Ki Ko
    In Proceedings of the 43rd International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM'17), LNCS 10139, 387--401, 2017

  46. Nondeterministic seedless oritatami systems and hardness of testing their equivalence,
    Yo-Sub Han, Hwee Kim, Makoto Ota and Shinnosuke Seki
    In Proceedings of the 22nd International Conference on DNA Computing and Molecular Programming (DNA22), LNCS 9818, 19--34, 2016 [pdf]

  47. Outfix-Guided Insertion,
    Da-Jung Cho, Yo-Sub Han, Timothy Ng and Kai Salomaa
    In Proceedings of the 20th International Conference on Developments in Language Theory (DLT'16), LNCS 9840, 102--113, 2016 [pdf]

  48. Inferring a Relax NG Schema from XML Documents,
    Guen-Hae Kim, Sang-Ki Ko and Yo-Sub Han
    In Proceedings of the 10th International Conference on Language and Automata Theory and Applications (LATA'16), LNCS 9618, 400--411, 2016 [pdf]

  49. Pseudoknot-Generating Operation,
    Da-Jung Cho, Yo-Sub Han, Timothy Ng and Kai Salomaa
    In Proceedings of the 42nd International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM'16), LNCS 9587, 241--252, 2016 [pdf]

  50. Duplications and Pseudo-Duplications,
    Da-Jung Cho, Yo-Sub Han, Hwee Kim, Alexandros Palioudakis and Kai Salomaa
    In Proceedings of Unconventional Computation & Natural Computation 2015 (UCNC'15), LNCS 9252, 157--168, 2015 [pdf]

  51. Generalizations of Code Languages with Marginal Errors,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 19th International Conference on Developments in Language Theory (DLT'15), LNCS 9168, 264--275, 2015 [pdf]

  52. The State Complexity of Permutations on Finite Languages over Binary Alphabets,
    Alexandros Palioudakis, Da-Jung Cho, Daniel Goc, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 17th International Workshop on Descriptional Complexity of Formal Systems (DCFS'15), LNCS 9118, 220--230, 2015 [pdf]

  53. Frequent Pattern Mining with Non-overlapping Inversions,
    Da-Jung Cho, Yo-Sub Han and Hwee Kim
    In Proceedings of the 9th International Conference on Language and Automata Theory and Applications (LATA'15), LNCS 8977, 121--132, 2015 [pdf]

  54. Online Multiple Palindrome Pattern Matching,
    Hwee Kim and Yo-Sub Han
    In Proceedings of the 21st edition of the International Symposium on String Processing and Information Retrieval (SPIRE'14), LNCS 8799, 173--178, 2014 [pdf]

  55. Parallel CYK Membership Test on GPUs,
    Kyoung-Hwan Kim, Sang-Min Choi, Hyein Lee, Ka Lok Man and Yo-Sub Han
    In Proceedings of the 11th IFIP International Conference on Network and Parallel Computing (NPC'14), LNCS 8707, 157--168, 2014 [pdf]

  56. Analyzing Item Features for Cold-Start Problems in Recommendation Systems,
    Soryoung Kim, Sang-Min Choi, Yo-Sub Han, Ka Lok Man and Kaiyu Wan
    In Proceedings of the 2014 Tenth International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP'14), 167--170, 2014 [pdf]

  57. State Complexity of Deletion,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 18th International Conference on Developments in Language Theory (DLT'14), LNCS 8633, 37--48, 2014 [pdf]

  58. State Complexity of Inversion Operations,
    Da-Jung Cho, Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 16th International Workshop on Descriptional Complexity of Formal Systems (DCFS'14), LNCS 8614, 102--113, 2014 [pdf]

  59. State Complexity of Regular Tree Languages for Tree Pattern Matching,
    Sang-Ki Ko, Ha-Rim Lee and Yo-Sub Han
    In Proceedings of the 16th International Workshop on Descriptional Complexity of Formal Systems (DCFS'14), LNCS 8614, 246--257, 2014 [pdf]

  60. Left is Better Than Right for Reducing Nondeterminism of NFAs,
    Sang-Ki Ko and Yo-Sub Han
    In Proceedings of the 19th International Conference on Implementation and Application of Automata (CIAA'14), LNCS 8587, 238--251, 2014 [pdf]

  61. Pseudo-Inversion on Formal Languages,
    Da-Jung Cho, Yo-Sub Han, Shin-Dong Kang, Hwee Kim, Sang-Ki Ko and Kai Salomaa
    In Proceedings of Unconventional Computation & Natural Computation 2014 (UCNC'14), LNCS 8553, 93--104, 2014 [BEST PAPER] [pdf]

  62. Space-efficient Approximate String Matching Allowing Inversions in Fast Average Time,
    Hwee Kim and Yo-Sub Han
    In Proceedings of the 8th International Frontiers of Algorithmics Workshop (FAW'14), LNCS 8497, 261--272, 2014 [pdf]

  63. Top-Down Tree Edit-Distance of Regular Tree Languages,
    Sang-Ki Ko, Yo-Sub Han and Kai Salomaa
    In Proceedings of the 8th International Conference on Language and Automata Theory and Applications (LATA'14), LNCS 8370, 466--477, 2014 [pdf]

  64. Alignment with Non-Overlapping Inversions on Two Strings,
    Da-Jung Cho, Yo-Sub Han and Hwee Kim
    In Proceedings of the 8th International Workshop on Algorithms and Computation (WALCOM'14), LNCS 8344 261--272, 2014 [pdf]

  65. A CA Model for Target Tracking in Distributed Mobile Wireless Sensor Network,
    Sang-Ki Ko, Hwee Kim and Yo-Sub Han
    In Proceedings of the 13th International Conference on Control, Automation and Systems (ICCAS'13), 1356--1361, 2013 [pdf]

  66. State Complexity of k-Union and k-Intersection for Prefix-Free Regular Languages,
    Hae-Sung Eom, Yo-Sub Han and Kai Salomaa
    In Proceedings of the 15th International Workshop on Descriptional Complexity of Formal Systems (DCFS'13), LNCS 8031, 78--89, 2013 [pdf]

  67. State Complexity of Subtree-Free Regular Tree Languages,
    Hae-Sung Eom, Yo-Sub Han and Sang-Ki Ko
    In Proceedings of the 15th International Workshop on Descriptional Complexity of Formal Systems (DCFS'13), LNCS 8031, 66--77, 2013 [pdf]

  68. State Complexity of Basic Operations on Non-Returning Regular Languages,
    Hae-Sung Eom, Yo-Sub Han and Galina Jiraskova
    In Proceedings of the 15th International Workshop on Descriptional Complexity of Formal Systems (DCFS'13), LNCS 8031, 54--65, 2013 [pdf]

  69. Approximate Matching between a Context-Free Grammar and a Finite-State Automaton,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 18th International Conference on Implementation and Application of Automata (CIAA'13), LNCS 7982, 146--157, 2013 [pdf]

  70. Identifying representative ratings for a new item in recommendation system,
    Sang-Min Choi and Yo-Sub Han
    In Proceedings of the 7th International Conference on Ubiquitous Information Management and Communication (ICUIMC 2013) [pdf]

  71. Computing the edit-distance between a regular language and a context-free language,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    In Proceedings of the 16th International Conference on Developments in Language Theory (DLT'12), LNCS 7410, 85--96, 2012 [pdf]

  72. A recommendation system based on a subset of raters,
    Bernhard Scholz, Sang-Min Choi, Sang-Ki Ko, Hae-Sung Eom and Yo-Sub Han
    In Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication (ICUIMC 2012) [pdf]

  73. Generalized One-Unambiguity,
    Pascal Caron, Yo-Sub Han and Ludovic Mignot
    In Proceedings of the 15th International Conference on Developments in Language Theory (DLT'11), LNCS 6795, 129--140, 2011 [pdf]

  74. A Cellular Automaton Model for Car Traffic with a Form-One-Lane Rule,
    Yo-Sub Han and Sang-Ki Ko
    In Proceedings of the 16th International Conference on Implementation and Application of Automata (CIAA'11), LNCS 6807, 154--165, 2011 [pdf]

  75. A Smart Movie Recommendation System,
    Sang-Ki Ko, Sang-Min Choi, Hae-Sung Eom, Jeong-Won Cha, Hyunchul Cho, Laehyun Kim and Yo-Sub Han
    In Proceedings of the HCI International 2011 (HCII'11), LNCS 6771, 558--566, 2011 [pdf]

  76. Reliability of Representative Reviewers on the Web,
    Sang-Min Choi, Jeong-Won Cha, Lae-Hyun Kim and Yo-Sub Han
    In Proceedings of the 2011 International Conference on Information Science and Applications (ICISA 2011)

  77. Predicting Phrase-Level Tags Using Entropy Inspired Discriminative Models,
    Jin Young Oh, Yo-Sub Han, Jeongyeul Park and Jeong-Won Cha
    In Proceedings of the 2011 International Conference on Information Science and Applications (ICISA 2011)

  78. Analyzing Category Correlations for Recommendation System,
    Bernhard Scholz, Sang-Min Choi, Sang-Ki Ko, Hae-Sung Eom and Yo-Sub Han
    In Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication (ICUIMC 2011) [pdf]

  79. Nondeterministic State Complexity for Suffix-Free Regular Languages,
    Yo-Sub Han and Kai Salomaa
    In Proceedings of the 12th International Workshop on Descriptional Complexity of Formal Systems (DCFS'10), 189--196, 2010 [pdf]

  80. Identifying Representative Reviewers in Internet Social Media,
    Sang-Min Choi, Jeong-Won Cha and Yo-Sub Han
    In Computational Collective Intelligence Technologies and Applications - Second International Conference (ICCCI'10), LNCS 6422, 22--30, 2010 [pdf]

  81. A Content Recommendation System Based on Category Correlations,
    Sang-Min Choi and Yo-Sub Han
    In Proceedings of the 5th International Multi-conference on Computing in the Global Information Technology (ICCGI'10), 66--70, 2010 [pdf]

  82. Implementation of State Elimination using Heuristics,
    Jae-Hee Ahn and Yo-Sub Han
    In Proceedings of the 14th International Conference on Implementation and Application of Automata (CIAA'09), LNCS 5642, 178--187, 2009 [pdf]

  83. State Complexity of Combined Operations for Prefix-Free Regular Languages,
    Yo-Sub Han Kai Salomaa and Sheng Yu
    In Proceedings of the 3rd International Conference on Language and Automata Theory and Applications (LATA'09), LNCS 5457, 398--409, 2009 [pdf]

  84. Evaluation of User Reputation on YouTube,
    Yo-Sub Han, Laehyun Kim and Jeong-Won Cha
    In Proceedings of the HCI International 2009 (HCII'09), LNCS 5621, 346--353, 2009 [pdf]

  85. User Reputation Evaluation Using Co-occurrence Feature and Collective Intelligence,
    Jeong-Won Cha, Hyun-woo Lee, Yo-Sub Han and Laehyun Kim
    In Proceedings of the HCI International 2009 (HCII'09), LNCS 5621, 305--311, 2009 [pdf]

  86. A Ranking Algorithm for User-generated Video Contents based on Social Activities,
    Lisa Wiyartanti, Yo-Sub Han and Laehyun Kim
    In Proceedings of the 3rd International Conference on Digital Information Management (ICDIM'08), 260--265, 2008 [pdf]

  87. Infrastructure for Ontological Resource Matching in a Virtual Organization,
    Michal Szymczak, Grzegorz Frackowiak, Maciej Gawinecki, Maria Ganzha, Marcin Paprzycki, Sang Keun Rhee, Myon-Woong Park, Yo-Sub Han, Young Tae Sohn, Jihye Lee, Jae Kawn Kim
    In Proceedings of the 2nd International Symposium on Intelligent Distributed Computing (IDC'08), 11--22, 2008 [pdf]

  88. On Resource Profiling and Matching in an Agent-Based Virtual Organization,
    Grzegorz Frackowiak, Maciej Gawinecki, Maria Ganzha, Marcin Paprzycki, Michal Szymczak, Myon-Woong Park, Yo-Sub Han
    In Proceedings of the 9th International Conference on Artificial Intelligence and Soft Computing (ICAISC'08), LNCS 5097, 1210--1221, 2008 [pdf]

  89. Generic Framework for Agent Adaptability and Utilization in a Virtual Organization - Preliminary Considerations,
    Maria Ganzha, Maciej Gawinecki, Michal Szymczak, Grzegorz Frackowiak, Marcin Paprzycki, Myon-Woong Park, Yo-Sub Han, Y.T. Sohn
    In Proceedings of the 2008 WEBIST Conference 2008 [pdf]

  90. Adaptive Information Provisioning in an Agent-Based Virtual Organization - Ontologies in the System,
    Michal Szymczak, Grzegorz Frackowiak, Maciej Gawinecki, Maria Ganzha, Marcin Paprzycki, Myon-Woong Park, Yo-Sub Han, Y.T. Sohn
    In Proceedings of the 2nd KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications (KES AMSTA), LNCS 4953, 271--280, 2008 [pdf]

  91. State Complexity of Basic Operations on Suffix-Free Regular Languages,
    Yo-Sub Han and Kai Salomaa
    In Proceedings of the 32nd International Symposium on Mathematical Foundations of Computer Science (MFCS'07), LNCS 4708, 501--512, 2007 [pdf]

  92. State Complexity of Union and Intersection of Finite Languages,
    Yo-Sub Han and Kai Salomaa
    In Proceedings of the 11th International Conference on Developments in Language Theory (DLT'07), LNCS 4588, 217--228, 2007 [pdf]

  93. Generalizations of One-Deterministic Regular Languages,
    Yo-Sub Han and Derick Wood
    In Proceedings of the 1st International Conference on Language and Automata Theory and Applications (LATA'07), 273--285, 2007

  94. Overlap-Free Regular Languages,
    Yo-Sub Han and Derick Wood
    In Proceedings of the 12th Annual International Computing and Combinatorics Conference (COCOON'06), LNCS 4112, 469--478, 2006 [pdf]

  95. State Complexity of Prefix-Free Regular Languages,
    Yo-Sub Han, Kai Salomaa and Derick Wood
    in Proceedings of the 8th International Workshop on Descriptional Complexity of Formal Systems (DCFS'06), 165--176, 2006 [pdf]

  96. Prime Decompositions of Regular Languages,
    Yo-Sub Han, Kai Salomaa and Derick Wood
    In Proceedings of the Tenth International Conference on Developments in Language Theory (DLT'06), LNCS 4036, 145--155, 2006 [pdf]

  97. Outfix-free Regular Languages and Prime Outfix-free Decomposition,
    Yo-Sub Han and Derick Wood
    In Proceedings of the Second International Colloquium on Theoretical Aspects of Computing (ICTAC'05), LNCS 3722, 96--109, 2005 [pdf]

  98. When Western Devil and Chinese Knight Play Go,
    Yo-Sub Han and Gerhard Trippen
    in Proceedings of the 16th Australasian Workshop on Combinatorial Algorithms (AWOCA'05), 399--408, 2005

  99. A New Linearizing Restriction in the Pattern Matching Problem,
    Yo-Sub Han and Derick Wood
    in Proceedings of the 15th International Symposium on Fundamentals of Computation Theory (FCT'05), LNCS 3623, 552--562, 2005 [pdf]

  100. Shorter Regular Expressions from Finite-state Automata,
    Yo-Sub Han and Derick Wood
    in Proceedings of the 10th International Conference on Implementation and Application of Automata (CIAA'05), LNCS 3845, 141--152, 2005 [pdf]

  101. Simple-Regular Expressions and Languages,
    Yo-Sub Han, Gerhard Trippen and Derick Wood
    in Proceedings of the 7th International Workshop on Descriptional Complexity of Formal Systems (DCFS'05), 146--157, 2005 [pdf]

  102. Prefix-Free Regular-Expression Matching,
    Yo-Sub Han, Yajun Wang and Derick Wood
    in Proceedings of the 16th Annual Symposium on Combinatorial Pattern Matching (CPM'05), LNCS 3537, 298--309, 2005 [pdf]

  103. The Generalization of Generalized Automata: Expression Automata,
    Yo-Sub Han and Derick Wood
    in Proceedings of the 9th International Conference on Implementation and Application of Automata (CIAA'04), LNCS 3317, 156--166, 2004 [pdf]

Chapters in Books

  1. Computing the Edit-Distance between a Tree and a Regular Tree Language,
    Yo-Sub Han, Sang-Ki Ko and Kai Salomaa
    in Multidisciplinary Creativity. Homage to Gheorghe Paun on his 65th Birthday, Spandugino, 249--260, 2015

  2. State Complexity of Combined Operations for Prefix-Free Regular Languages,
    Hae-Sung Eom, Yo-Sub Han, Kai Salomaa and Sheng Yu
    in Discrete Mathematics and Computer Science. In Memoriam Alexandru Mateescu (1952-2005), Editura Academiei, Bucuresti (The Publishing House of the Romanian Academy, Bucharest), 137--152, 2014

  3. Operational State Complexity of Prefix-Free Regular Languages,
    Yo-Sub Han, Kai Salomaa and Derick Wood
    in Automata, Formal Languages, and Related Topics-Dedicated to Ferenc Gécseg on the occasion of his 70th birthday, Institue of Informatics, University of Szeged, Hungary, 99--116, 2009

  4. Considering Resource Management in Agent-Based Virtual Organization,
    Grzegorz Frackowiak, Maria Ganzha, Maciej Gawinecki, Marcin Paprzycki, Michal Szymczak, Myon-Woong Park, Yo-Sub Han
    In Intelligent Agents in the Evolution of Web and Applications, Advances in Computational Intelligence Series, 161--190, 2009 [pdf]

Misc.

  1. Ranking Algorithm for User-Created Video Contents based on User Reputation,
    Hyunchul Cho, Lisa Wiyartanti, Yo-Sub Han and Laehyun Kim
    Accepted in Proceedings of Korean Information Science Society , 2008

  2. Text Categorization using Topic Signature and Co-occurrence Features,
    Won-Sik Bae, Yo-Sub Han and Jeong-Won Cha
    In Proceedings of Korean Information Science Society , Vol. 35, 2008

  3. Decision Algorithms for Subfamilies of Regular Languages using State-Pair Graphs,
    Yo-Sub Han
    In Bulletin of the EATCS, No. 93, 118--133, October 2007 [pdf]

  4. Generalizations of One-Deterministic Regular Languages,
    Yo-Sub Han and Derick Wood
    Presented at the 10th Korea-Japan Joint Workshop on Algorithms and Computation (WAAC'07), 2007

  5. Multi-Source Broadcasting and Multicasting in Wireless Ad Hoc Networks,(extended abstract)
    Yo-Sub Han, Sheung-Hung Poon and Yajun Wang
    Presented at Japan Conference on Discrete and Computational Geometry (JCDCG'04), 2004 [pdf]

  6. Approximating the Minimum-Diameter Spanning Tree with Bounded Degree, (extended abstract)
    Hee-Kap Ahn, Yo-Sub Han and Chan-Su Shin
    Presented at Japan Conference on Discrete and Computational Geometry (JCDCG'04), 2004 [pdf]

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Last updated 2018/04/20