Chaehyun Lee

CEO & Co-founder at Dable · Indie Developer · Seoul, Korea
I enjoy logical thinking and finding creative ways to solve problems through cooperative work. Building personalization technology at Dable and developer tools as side projects. 45 patents in mobile, web, and recommendation technologies.

Personal Side Projects

ClaudeTuner Chrome Extension
Usage tracker & optimizer for Claude AI. Monitors token usage, provides plan recommendations, team dashboards, and weekly reports. 1,000+ active users.
AskAnywhere Chrome Extension
AI-powered search across your workspace. Query and analyze content from Notion, Slack, and Google Drive without switching apps.

Experience

CEO / Co-founder & Software Engineer 2015 – Present
Leading Asia's largest native AI ad platform serving 3,000+ premium publishers across 11 markets. Expanding into app DSP (wheres.ai) and AI-powered retail media (sales-boost.ai) for travel, commerce, and entertainment verticals.
Team Leader 2013 – 2015
SK planet
Led the RecoPick team building a recommendation platform (recopick.com).
Software Engineer 2011 – 2013
SK planet
Researched and developed scalable machine learning algorithms (clustering, collaborative filtering) on Hadoop MapReduce.
Software Engineer 2010 – 2011
Naver Corp.
Developed web crawling systems handling large-scale data with distributed DBMS and machine learning techniques.
Assistant Manager 2008 – 2009
LG Uplus
Next Generation Service Technology Team. Worked on mobile browser and WiFi positioning system projects.
Research Intern 2007
NASA Ames Research Center, Moffett Field, CA
Participated in the haptic weather project. Developed a prototype in C++.
Summer Intern 2004
Samsung Fire & Marine Insurance
Internet Service Part. Implemented a flash game.

Education

POSTECH (Pohang University of Science and Technology)
M.S. Computer Science & Engineering, 2005 – 2008
Haptics and Virtual Reality Lab · Thesis: “Rendering System for Mobile Haptic Display”
POSTECH (Pohang University of Science and Technology)
B.S. Computer Science & Engineering, 2002 – 2005
Early graduation · Highest GPA in Dept. of Computer Science and Engineering

Patents & Awards

45 registered patents in mobile browsers, web rendering, recommendation systems, machine learning, and connected vehicles.
View all patents
  1. 2014Method for recommend goods based user log data, system and apparatus thereof KR 10-2014-0000649
  2. 2013Method for providing recommended item, storage medium recording program and device therefor KR 10-2013-0049968
  3. 2013System and method for providing link information, and apparatus applied to the same KR 10-2013-0016460
  4. 2012System and method for supporting a clustering algorithm, and apparatus supporting the same KR 10-2012-0097498
  5. 2012System and method for providing a fuel efficiency calculating service KR 10-2012-0078507
  6. 2012System and method for providing car group driving information KR 10-2012-0073972
  7. 2012System and method for providing Eco-routing service KR 10-2012-0070856
  8. 2012System and method for recommending a route based on thema KR 10-2012-0069942
  9. 2012System and method for recommending contents based on external environment of vehicle and user preferences KR 10-2012-0068488
  10. 2012System and method for recommending contents based on passenger type for automobile KR 10-2012-0070855
  11. 2012Contents recommendation system and contents recommendation method KR 10-2012-0068127
  12. 2012System and method for recommending music based on external environment of vehicle KR 10-2012-0067233
  13. 2012System and method for analyzing cluster result of mass data KR 10-2012-0035995
  14. 2011Method, device and computer readable recording medium for improved detection of similar documents KR 10-2011-0042303
  15. 2011Method, device and computer readable recording medium for providing search results KR 10-2011-0028687
  16. 2011Method, device and computer readable recording medium for providing classification with respect to user input KR 10-2011-0019394
  17. 2011Method, system and computer readable recording medium for providing search results KR 10-2011-0000240
  18. 2010Recommendation system using collective intelligence and method thereof KR 10-2010-0108755
  19. 2010Method and system to search and provide shopping postscript KR 10-2010-0105676
  20. 2010System and method for recommending locality-based keyword KR 10-2010-0103946
  21. 2010System and method for calculating move necessary time considering waiting time KR 10-2010-0062820
  22. 2010Method for detecting web page traps based on perpetual calendar and building the search database KR 10-2010-0060991 / JP 2011-086114
  23. 2009DTMF signal transmission mobile communication terminal by motion sensing and method thereof KR 10-2009-0080939
  24. 2009System and method for providing morning call service KR 10-2009-0077658
  25. 2009Method and system for reproducing moving picture using haptic effect in mobile communication unit KR 10-2009-0042113
  26. 2009System and method for supporting multi-tab in mobile internet browser KR 10-2009-0041088
  27. 2009Method and system for supporting flash file KR 10-2009-0034081
  28. 2008Method of adjusting mobile browser screen for providing optimized webpage KR 10-2008-0122586
  29. 2008Method and system for loading web page KR 10-2008-0114741
  30. 2008Mobile web service system and method for supporting contents file of plug-in type KR 10-2008-0102908
  31. 2008System and method for web accelerating service using cache for subscriber KR 10-2008-0093119
  32. 2008Method and system for providing moving picture file KR 10-2008-0085045
  33. 2008Method and system for providing web service in mobile communication unit KR 10-2008-0082191
  34. 2008System and method for interlocking e-mail service in mobile internet browser KR 10-2008-0077388
  35. 2008Portable terminal and user interface method thereof KR 10-2008-0064457
  36. 2008Method and system for providing JavaScript file KR 10-2008-0057724
  37. 2008Method and system for indicating discrimination of attaching file KR 10-2008-0076985
  38. 2008System and method for managing image transmission volume of web viewer KR 10-2008-0048924
  39. 2008Web viewer server producing capture image of web page variably KR 10-2008-0052460
  40. 2008Method for connecting portable terminal using replay server KR 10-2008-0044296
  41. 2008Method for changing text KR 10-2008-0039275
  42. 2008System for sharing internet page and control method thereof KR 10-2008-0029053
  43. 2008System and method for providing internet web page by generating mobile connect address KR 10-2008-0029052
  44. 2006Worm detection method and apparatus using ARP packet US 11/465,391
  45. 2005Worm virus detection method and apparatus using ARP packet KR 10-2005-0076743
  • 2020 Presidential Commendation Contribution to Software Industry Development
  • 2020 Data Awards — Minister of Science and ICT Commendation Dable
  • 2020 SW High-Growth Club 200 — NIPA Director Award Dable
  • 2019 Minister of Science and ICT Award Dable
  • 2017 TIPS Award — KISED Director Award Dable
  • 2016 Korea Online Advertising Awards — Grand Prize
  • 2015 D.STARS Star Award — Minister of Science and ICT Award Dable
  • 2008 Google Mobile Website Contest LG Telecom
  • 2006 BK21 Global Internship Program NASA Ames Research Center
  • 2005 The Namgu Scholarship
  • 2002–05 POSTECH Highest GPA Award Dept. of Computer Science

Publications

C. Lee, B. D. Adelstein, and S. Choi, “Haptic Weather,” Proc. Symposium on Haptic Interfaces for Virtual Environments and Teleoperator Systems, pp. 473–474, 2008.

C. Lee, M. S. Hong, I. Lee, O. K. Choi, K.-L. Han, Y. Y. Kim, S. Choi, and J. S. Lee, “Mobile Haptic Interface for Large Immersive Virtual Environments: PoMHI v0.5,” Proc. 4th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), pp. 106–111, 2007.

C. Lee et al., “Mobile Haptic Interface for Large Immersive Virtual Environments: PoMHI v0.5,” Poster and Demo Proc. 2nd International Workshop on Haptic and Audio Interaction Design, pp. 7–8, 2007.

C. Lee et al., “Mobile Haptic Interface for Large Immersive Virtual Environments: PoMHI v0.5,” Journal of Korea Robotics Society, Vol. 3, No. 2, pp. 137–145, 2008. (invited)

C. Lee, I. Lee, and S. Choi, “Motion Planning for Mobile Haptic Display,” Proc. HCI Korea, pp. 578–584, 2007.

J. Jung, I. Hwang, I. Lee, C. Lee, G. Park, J. Hwang, S. Choi, and G. J. Kim, “Remote Control for Motion-Based Interactions,” Proc. HCI Korea, pp. 115–122, 2007.