The 12th Korea-Sino International Conference
on Coding Theory and Related Topics

Kangwon National University, Chuncheon, Korea
July 19 – 23, 2026

About Conference

The 12th Korea-Sino/Sino-Korea International Conference on Coding Theory and Related Topics will be held July 20–22, 2026 at Kangwon National University in Chuncheon, Korea. The conference will feature twenty-four invited talks across nine thematic sessions, with overseas speakers arriving on July 19 and departing on July 23.

For the history of past editions (2014–2025), see Conference History & Past Editions.

For directions to Chuncheon from Seoul or Airports, see Transportation guide to Chuncheon.

Algebraic Coding Theory · Error-Correcting Codes · Cryptography · Data Storage Systems

Registration

Registration is already closed.

Registration Notice
· There is no registration fee, but registration is required.
· Registration deadline: 30th Jun. 2026
· If you have any question, please contact: whchoi@kangwon.ac.kr (Whan-Hyuk Choi, Kangwon National University)

Program Book

A detailed program book containing talk titles and abstracts is available here: Download the Program Book (PDF).

Program (Tentative)

Schedules are subject to change depending on circumstances.

July 19 (Sun) — Registration Day Registration
All day
Arrival and on-site registration of invited speakers
July 20 (Mon) — Day 1 Opening Ceremony · Session 1–3
08:30 – 09:20
On-site Registration
09:20 – 09:30
Opening Ceremony
Session 1
Chair : Hongwei Liu
09:30 – 10:10
San Ling
Title : On Quasi-Cyclic Codes
10:10 – 10:50
Shitao Li
Title : Recursive Bounds and Explicit Constructions for Error Coefficients of Optimal Linear Codes
10:50 – 11:30
Jon-Lark Kim
Title : Coding Theory of the 64 Hexagrams
11:30 – 12:00
Photo
12:00 – 14:00
Lunch
Session 2
Chair : Jon-Lark Kim
14:00 – 14:40
Jinquan Luo
Title : Codes Expansion and Embedding with Arbitrary Hull Dimensions
14:40 – 15:20
Boran Kim
Title : Minimal Codewords of Linear Codes Constructed from Graphs
15:20 – 15:40
Discussion & Coffee Break
Session 3
Chair : Minjia Shi
15:40 – 16:20
Yongbo Xia
Title : A Class of Sum-Free Power Functions over Finite Fields of Even Characteristic
16:20 – 17:00
Jongyook Park
Title : Parameter restrictions for strongly regular graphs
17:00 – 17:40
Liming Ma
Title : The automorphism groups of a maximal function field with the second largest genus and its algebraic geometry codes
July 21 (Tue) — Day 2 Session 4–7 · Banquet
Session 4
Chair : Boran Kim
09:00 – 09:40
Eun Ju Cheon
Title : Length optimal codes and finite geometry
09:40 – 10:20
Yiwei Zhang
Title : Sequence Reconstruction: Beyond Levenshtein's Reconstruction Threshold
10:20 – 10:40
Discussion & Coffee Break
Session 5
Chair : Jinquan Luo
10:40 – 11:20
Whan-Hyuk Choi
Title : Quantum Circuits for Amplitude Reweighting
11:20 – 12:00
Guangkui Xu
Title : More t-designs from the codewords of the second minimum weight
12:00 – 14:00
Lunch
Session 6
Chair : Whan-Hyuk Choi
14:00 – 14:40
Jong Yoon Hyun
Title : Designs, Linear Codes, Plateaued Functions, and Their Interconnections
14:40 – 15:20
Minjia Shi
Title : The weight spectrum cardinality theory of linear codes
15:20 – 15:40
Discussion & Coffee Break
Session 7
Chair : Yiwei Zhang
15:40 – 16:20
Haiyan Zhou
Title : Quantum Codes from Construction X4
16:20 – 17:00
Manabu Hagiwara
Title : Combinatorial Aspects of Deletion Codes: A Perspective Beyond Erasures
18:00 –
Banquet
July 22 (Wed) — Day 3 Session 8–11 · Closing Remark
Session 8
Chair : Yongbo Xia
09:00 – 09:40
Zhe Li
Title : Faster Pseudorandom Correlation Generators via Walsh-Hadamard Transform
09:40 – 10:20
Byung-Sun Won
Title : Construction of Quaternary Hermitian LCD Codes via Modified Genetic Algorithms
10:20 – 10:40
Discussion & Coffee Break
Session 9
Chair : Boran Kim
10:40 – 11:20
Zuo Ye
Title : Constructions of Codes Correcting Bust-Deletions and Localized Deletions
11:20 – 12:00
Sunghyu Han
Title : A Study on the Quadratic Character of Evaluation Constants for MDS Self-Dual Codes
12:00 – 14:00
Lunch
Session 10
Chair : Haiyan Zhou
14:00 – 14:20
Young Gun Roe
Title : MDS and ACD codes over ring I₂
14:20 – 14:40
Mahiro Yamaguchi
Title : Deletion codes derived from pointers
14:40 – 15:20
Wenjun Yu
Title : On the Capacity of Sequences of Coloring Channels
15:20 – 15:40
Discussion & Coffee Break
Session 11
Chair : Sunghyu Han
15:40 – 16:20
Junzhen Sui
Title : Twisted Goppa Codes With an Efficient Decoding Algorithm and Quasi-Cyclic Properties
16:20 – 17:00
Seon Jeong Kim
Title : Relatives of the Hermitian curve over a finite field II
17:00 – 17:30
Closing Remark
July 23 (Thu) — Departure Day Discussion · Departure
09:30 – 12:00
Open Discussion
12:00
Departure

Invited Speakers

Korea-side
Eun Ju CheonGyeongsang National UniversityKR
Whan-Hyuk ChoiKangwon National UniversityKR
Boran KimKyungpook National UniversityKR
Jon-Lark KimSogang UniversityKR
Seon Jeong KimGyeongsang National UniversityKR
San LingNanyang Technological University, SingaporeSG
Manabu HagiwaraChiba University, JapanJP
Sunghyu HanKOREATECHKR
Jong Yoon HyunKonkuk Univ. GlocalKR
Jongyook ParkKyungpook National UniversityKR
Young Gun RoeKangwon National UniversityKR
Byung-Sun WonEwha Womans UniversityKR
Mahiro YamaguchiChiba University, JapanJP
China-side
Shitao LiAnhui UniversityCN
Zhe LiXidian UniversityCN
Jinquan LuoCentral China Normal University (CCNU)CN
Liming MaUniv. of Science and Technology of China (USTC)CN
Minjia ShiAnhui UniversityCN
Junzhen SuiHenan Normal UniversityCN
Yongbo XiaSouth-Central Minzu UniversityCN
Guangkui XuAnhui Jianzhu UniversityCN
Zuo YeXidian UniversityCN
Wenjun YuXidian UniversityCN
Yiwei ZhangShandong UniversityCN
Haiyan ZhouNanjing Normal UniversityCN

Venue

All sessions take place in Building 207 (College of Natural Sciences #5) on the Chuncheon campus of Kangwon National University. Campus map (English · 中文)

춘천시 전경 — 산과 호수에 둘러싸인 강원도 도청 소재지
City
Chuncheon, Gangwon-do
University
Kangwon National University

Getting Here

For directions to Chuncheon, see the guide: Transportation to Chuncheon (from Incheon / Gimpo airports and Seoul).

Kangwon National University campus map showing the route from the Main gate to Natural Sciences Building 5, passing YeonJeokJi Pond and Ham In-Seob Square

Follow the route to the conference venue from the Main gate.

Accommodation

Two recommended hotels sit near Namchuncheon Station (남춘천역), within a 15 minute walk of the station and about 1.7 km from the Kangwon National University Chuncheon campus.

Kangwon National University campus map showing the route from the Main gate to Natural Sciences Building 5, passing YeonJeokJi Pond and Ham In-Seob Square

Street map around the accomodations.

Hound Hotel Namchuncheon (하운드호텔 남춘천)
28 Namchun-ro, Chuncheon-si, Gangwon-do
Brown Dot Hotel Namchuncheon (브라운도트호텔 남춘천)
5 Namchun-ro 25beon-gil, Chuncheon-si, Gangwon-do

For more places to visit around the city, see the Chuncheon City tourist map.

Organizers

Organizing Committee

Scientific Committee

Sponsored by

Contact

Whan-Hyuk Choi
Department of Mathematics, KNU
KRIMS Office
KNU Research Institute for Mathematical Sciences