Sungahn Ko

58 papers A* 9A 6B 1Journal 33Unranked 8
YearRankTypeTitle / Venue / Authors
2026 A* conf
"Here, Let Me Help": An Empirical Study of User Interventions in Human-Web Agent Collaboration.
CHI
Joohee Kim, Sungbeom Cho, Duc M. Nguyen, Jaehyeong Jeon, Minjeong Shin, Sungahn Ko
2026 A* conf
I Feel We Are Together: How People Perceive Personalized Face-Swapped GIFs in Text-Based Communication.
CHI
Daeun Jeong, Hyunwook Lee, Minjeong Shin, Joohee Kim, Changhee Lee, Sungbeom Cho, Hyotaek Jeon, Seungjae Oh, Sungahn Ko
2025 J jnl
Beyond the Mirror: Personal Analytics through Visual Juxtaposition with Other People's Data.
CoRR
Sungbok Shin, Sunghyo Chung, Hyeon Jeon, Hyunwook Lee, Minje Choi, Taehun Kim, Jaehoon Choi, Sungahn Ko, Jaegul Choo
2025 J jnl
DG Comics: Semi-Automatically Authoring Graph Comics for Dynamic Graphs.
IEEE Trans. Vis. Comput. Graph.
Joohee Kim, Hyunwook Lee, Duc M. Nguyen, Minjeong Shin, Bum Chul Kwon, Sungahn Ko, Niklas Elmqvist
2025 A conf
From Patterns to Predictions: A Shapelet-Based Framework for Directional Forecasting in Noisy Financial Markets.
CIKM
Juwon Kim, Hyunwook Lee, Hyotaek Jeon, Seungmin Jin, Sungahn Ko
2025 J jnl
From Patterns to Predictions: A Shapelet-Based Framework for Directional Forecasting in Noisy Financial Markets.
CoRR
Juwon Kim, Hyunwook Lee, Hyotaek Jeon, Seungmin Jin, Sungahn Ko
2025 J jnl
Navigating High-Dimensional Backstage: A Guide for Exploring Literature for the Reliable Use of Dimensionality Reduction.
CoRR
Hyeon Jeon, Hyunwook Lee, Yun-Hsin Kuo, Taehyun Yang, Daniel Archambault, Sungahn Ko, Takanori Fujiwara, Kwan-Liu Ma, Jinwook Seo
2025 A conf
ST-LINK: Spatially-Aware Large Language Models for Spatio-Temporal Forecasting.
CIKM
Hyotaek Jeon, Hyunwook Lee, Juwon Kim, Sungahn Ko
2025 J jnl
ST-LINK: Spatially-Aware Large Language Models for Spatio-Temporal Forecasting.
CoRR
Hyotaek Jeon, Hyunwook Lee, Juwon Kim, Sungahn Ko
2025 A* conf
Unveiling High-dimensional Backstage: A Survey for Reliable Visual Analytics with Dimensionality Reduction.
CHI
Hyeon Jeon, Hyunwook Lee, Yun-Hsin Kuo, Taehyun Yang, Daniel Archambault, Sungahn Ko, Takanori Fujiwara, Kwan-Liu Ma, Jinwook Seo
2025 J jnl
Unveiling High-dimensional Backstage: A Survey for Reliable Visual Analytics with Dimensionality Reduction.
CoRR
Hyeon Jeon, Hyunwook Lee, Yun-Hsin Kuo, Taehyun Yang, Daniel Archambault, Sungahn Ko, Takanori Fujiwara, Kwan-Liu Ma, Jinwook Seo
2025 A* conf
VEHME: A Vision-Language Model For Evaluating Handwritten Mathematics Expressions.
EMNLP
Thu Phuong Nguyen, Duc M. Nguyen, Hyotaek Jeon, Hyunwook Lee, Hyunmin Song, Sungahn Ko, Taehwan Kim
2025 J jnl
VEHME: A Vision-Language Model For Evaluating Handwritten Mathematics Expressions.
CoRR
Thu Phuong Nguyen, Duc M. Nguyen, Hyotaek Jeon, Hyunwook Lee, Hyunmin Song, Sungahn Ko, Taehwan Kim
2024 J jnl
DG Comics: Semi-Automatically Authoring Graph Comics for Dynamic Graphs.
CoRR
Joohee Kim, Hyunwook Lee, Duc M. Nguyen, Minjeong Shin, Bum Chul Kwon, Sungahn Ko, Niklas Elmqvist
2024 A* conf
TESTAM: A Time-Enhanced Spatio-Temporal Attention Model with Mixture of Experts.
ICLR
Hyunwook Lee, Sungahn Ko
2024 J jnl
TESTAM: A Time-Enhanced Spatio-Temporal Attention Model with Mixture of Experts.
CoRR
Hyunwook Lee, Sungahn Ko
2024 J jnl
Towards Visualization Thumbnail Designs That Entice Reading Data-Driven Articles.
IEEE Trans. Vis. Comput. Graph.
Hwiyeon Kim, Joohee Kim, Yunha Han, Hwajung Hong, Oh-Sang Kwon, Young-Woo Park, Niklas Elmqvist, Sungahn Ko, Bum Chul Kwon
2023 J jnl
A Visual Analytics System for Improving Attention-based Traffic Forecasting Models.
IEEE Trans. Vis. Comput. Graph.
Seungmin Jin, Hyunwook Lee, Cheonbok Park, Hyeshin Chu, Yunwon Tae, Jaegul Choo, Sungahn Ko
2023 J jnl
Roslingifier: Semi-Automated Storytelling for Animated Scatterplots.
IEEE Trans. Vis. Comput. Graph.
Minjeong Shin, Joohee Kim, Yunha Han, Lexing Xie, Mitchell Whitelaw, Bum Chul Kwon, Sungahn Ko, Niklas Elmqvist
2023 J jnl
Towards Visualization Thumbnail Designs that Entice Reading Data-driven Articles.
CoRR
Hwiyeon Kim, Joohee Kim, Yunha Han, Hwajung Hong, Oh-Sang Kwon, Young-Woo Park, Niklas Elmqvist, Sungahn Ko, Bum Chul Kwon
2022 J jnl
A Graphical Workflow Exploration Environment For Visual Analytics.
CoRR
Chunggi Lee, Juyoung Oh, Seungmin Jin, Isaac Cho, Sungahn Ko
2022 J jnl
A Visual Analytics System for Improving Attention-based Traffic Forecasting Models.
CoRR
Seungmin Jin, Hyunwook Lee, Cheonbok Park, Hyeshin Chu, Yunwon Tae, Jaegul Choo, Sungahn Ko
2022 A conf
An Empirical Study on How People Perceive AI-generated Music.
CIKM
Hyeshin Chu, Joohee Kim, Seongouk Kim, Hongkyu Lim, Hyunwook Lee, Seungmin Jin, Jongeun Lee, Taehwan Kim, Sungahn Ko
2022 J jnl
An Empirical Study on the Relationship Between the Number of Coordinated Views and Visual Analysis.
CoRR
Juyoung Oh, Chunggi Lee, Hwiyeon Kim, Kihwan Kim, Oh-Sang Kwon, Eric D. Ragan, Bum Chul Kwon, Sungahn Ko
2022 J jnl
HisVA: A Visual Analytics System for Studying History.
IEEE Trans. Vis. Comput. Graph.
Dongyun Han, Gorakh Parsad, Hwiyeon Kim, Jaekyom Shim, Oh-Sang Kwon, Kyung A. Son, Jooyoung Lee, Isaac Cho, Sungahn Ko
2022 A* conf
Learning to Remember Patterns: Pattern Matching Memory Networks for Traffic Forecasting.
ICLR
Hyunwook Lee, Seungmin Jin, Hyeshin Chu, Hongkyu Lim, Sungahn Ko
2022 J jnl
TILDE-Q: A Transformation Invariant Loss Function for Time-Series Forecasting.
CoRR
Hyunwook Lee, Chunggi Lee, Hongkyu Lim, Sungahn Ko
2021 A* conf
An Empirical Experiment on Deep Learning Models for Predicting Traffic Data.
ICDE
Hyunwook Lee, Cheonbok Park, Seungmin Jin, Hyeshin Chu, Jaegul Choo, Sungahn Ko
2021 J jnl
An Empirical Experiment on Deep Learning Models for Predicting Traffic Data.
CoRR
Hyunwook Lee, Cheonbok Park, Seungmin Jin, Hyeshin Chu, Jaegul Choo, Sungahn Ko
2021 — conf
Calibrating Dynamic Traffic Assignment Models by Parallel Search using Active-CMA-ES.
ITSC
Jaebak Hwang, Sungahn Ko, Tsz-Chiu Au
2021 J jnl
HisVA: A Visual Analytics System for Studying History.
CoRR
Dongyun Han, Gorakh Parsad, Hwiyeon Kim, Jaekyom Shim, Oh-Sang Kwon, Kyung A. Son, Jooyoung Lee, Isaac Cho, Sungahn Ko
2021 J jnl
Learning to Remember Patterns: Pattern Matching Memory Networks for Traffic Forecasting.
CoRR
Hyunwook Lee, Seungmin Jin, Hyeshin Chu, Hongkyu Lim, Sungahn Ko
2021 A* conf
Wait, Let's Think about Your Purchase Again: A Study on Interventions for Supporting Self-Controlled Online Purchases.
WWW
Yunha Han, Hwiyeon Kim, Hyeshin Chu, Joohee Kim, Hyunwook Lee, Seunghyeong Choe, Dooyoung Jung, Dongil Chung, Bum Chul Kwon, Sungahn Ko
2021 J jnl
ZeVis: A Visual Analytics System for Exploration of a Larval Zebrafish Brain in Serial-Section Electron Microscopy Images.
IEEE Access
Junyoung Choi, David Grant Colburn Hildebrand, Jungmin Moon, Tran Minh Quan, Tuan Tran Anh, Sungahn Ko, Won-Ki Jeong
2020 J jnl
A Visual Analytics System for Exploring, Monitoring, and Forecasting Road Traffic Congestion.
IEEE Trans. Vis. Comput. Graph.
Chunggi Lee, Yeonjun Kim, Seungmin Jin, Dongmin Kim, Ross Maciejewski, David S. Ebert, Sungahn Ko
2020 A* conf
GUIComp: A GUI Design Assistant with Real-Time, Multi-Faceted Feedback.
CHI
Chunggi Lee, Sanghoon Kim, Dongyun Han, Hongjun Yang, Youngwoo Park, Bum Chul Kwon, Sungahn Ko
2020 J jnl
GUIComp: A GUI Design Assistant with Real-Time, Multi-Faceted Feedback.
CoRR
Chunggi Lee, Sanghoon Kim, Dongyun Han, Hongjun Yang, Youngwoo Park, Bum Chul Kwon, Sungahn Ko
2020 A conf
ST-GRAT: A Novel Spatio-temporal Graph Attention Networks for Accurately Forecasting Dynamically Changing Road Speed.
CIKM
Cheonbok Park, Chunggi Lee, Hyojin Bahng, Yunwon Tae, Seungmin Jin, Kihwan Kim, Sungahn Ko, Jaegul Choo
2019 A conf
Modeling Exploration/Exploitation Decisions through Mobile Sensing for Understanding Mechanisms of Addiction.
MobiSys
Kihwan Kim, Sanghoon Kim, Chunggi Lee, Sungahn Ko
2019 J jnl
STGRAT: A Spatio-Temporal Graph Attention Network for Traffic Forecasting.
CoRR
Cheonbok Park, Chunggi Lee, Hyojin Bahng, Taeyun won, Kihwan Kim, Seungmin Jin, Sungahn Ko, Jaegul Choo
2019 A conf
System Architecture for Progressive Augmented Reality.
MobiSys
Yunha Han, Chunggi Lee, Sanghoon Kim, Sungahn Ko
2019 — conf
Thumbnails for Data Stories: A Survey of Current Practices.
IEEE VIS (Short Papers)
Hwiyeon Kim, Juyoung Oh, Yunha Han, Sungahn Ko, Matthew Brehmer, Bum Chul Kwon
2019 J jnl
Thumbnails for Data Stories: A Survey of Current Practices.
CoRR
Hwiyeon Kim, Juyoung Oh, Yunha Han, Sungahn Ko, Matthew Brehmer, Bum Chul Kwon
2016 J jnl
A Survey on Visual Analysis Approaches for Financial Data.
Comput. Graph. Forum
Sungahn Ko, Isaac Cho, Shehzad Afzal, Calvin Yau, Junghoon Chae, Abish Malik, Kaethe Beck, Yun Jang, William Ribarsky, David S. Ebert
2016 J jnl
A Visual Analytics Framework for Microblog Data Analysis at Multiple Scales of Aggregation.
Comput. Graph. Forum
Jiawei Zhang, Benjamin Ahlbrand, Abish Malik, Junghoon Chae, Zhiyu Min, Sungahn Ko, David S. Ebert
2015 J jnl
Multi-aspect visual analytics on large-scale high-dimensional cyber security data.
Inf. Vis.
Victor Y. Chen, Ahmad M. Razip, Sungahn Ko, Cheryl Z. Qian, David S. Ebert
2015 — conf
ParkAnalyzer: Characterizing the movement patterns of visitors VAST 2015 Mini-Challenge 1.
VAST
Jieqiong Zhao, Guizhen Wang, Junghoon Chae, Hanye Xu, Siqaio Chen, William Hatton, Sherry Towers, Mahesh Babu Gorantla, Benjamin Ahlbrand, Jiawei Zhang, Abish Malik, Sungahn Ko, David S. Ebert
2015 — conf
Visual analytics for detecting communication patterns.
VAST
William Hatton, Jieqiong Zhao, Mahesh Babu Gorantla, Junghoon Chae, Benjamin Ahlbrand, Hanye Xu, Siqaio Chen, Guizhen Wang, Jiawei Zhang, Abish Malik, Sungahn Ko, David S. Ebert
2015 — conf
Visual analytics of heterogeneous data for criminal event analysis VAST challenge 2015: Grand challenge.
VAST
Junghoon Chae, Guizhen Wang, Benjamin Ahlbrand, Mahesh Babu Gorantla, Jiawei Zhang, Siqaio Chen, Hanye Xu, Jieqiong Zhao, William Hatton, Abish Malik, Sungahn Ko, David S. Ebert
2014 — —
Aided decision-making through visual analytics systems for large multivariate, spatiotemporal, hierarchical and network data
Sungahn Ko
2014 — conf
Analyzing high-dimensional multivaríate network links with integrated anomaly detection, highlighting and exploration.
IEEE VAST
Sungahn Ko, Shehzad Afzal, Simon J. Walton, Yang Yang, Junghoon Chae, Abish Malik, Yun Jang, Min Chen, David S. Ebert
2014 J jnl
VASA: Interactive Computational Steering of Large Asynchronous Simulation Pipelines for Societal Infrastructure.
IEEE Trans. Vis. Comput. Graph.
Sungahn Ko, Jieqiong Zhao, Jing Xia, Shehzad Afzal, Xiaoyu Wang, Greg Abram, Niklas Elmqvist, Len Kne, David Van Riper, Kelly P. Gaither, Shaun Kennedy, William J. Tolone, William Ribarsky, David S. Ebert
2013 J jnl
Automated Box-Cox Transformations for Improved Visual Encoding.
IEEE Trans. Vis. Comput. Graph.
Ross Maciejewski, Avin Pattath, Sungahn Ko, Ryan Hafen, William S. Cleveland, David S. Ebert
2012 J jnl
MarketAnalyzer: An Interactive Visual Analytics System for Analyzing Competitive Advantage Using Point of Sale Data.
Comput. Graph. Forum
Sungahn Ko, Ross Maciejewski, Yun Jang, David S. Ebert
2012 — conf
SemanticPrism: A multi-aspect view of large high-dimensional data: VAST 2012 Mini Challenge 1 award: Outstanding integrated analysis and visualization.
IEEE VAST
Yingjie Victor Chen, Ahmad M. Razip, Sungahn Ko, Zhenyu Cheryl Qian, David S. Ebert
2011 B conf
Applying mobile device soft keyboards to collaborative multitouch tabletop displays: design and evaluation.
ITS
Sungahn Ko, Kyungtae Kim, Tejas D. Kulkarni, Niklas Elmqvist
2011 — conf
WordBridge: Using Composite Tag Clouds in Node-Link Diagrams for Visualizing Content and Relations in Text Corpora.
HICSS
Kyungtae Kim, Sungahn Ko, Niklas Elmqvist, David S. Ebert
2009 J jnl
NLE-FFS: a flash file system with PRAM for non-linear editing.
IEEE Trans. Consumer Electron.
Man-Keun Seo, Sungahn Ko, Youngwoo Park, Kyu Ho Park