Jun-Ki Min

Postdoctoral Researcher

Human-Computer Interaction Institute

School of Computer Science

Carnegie Mellon University

Mail to: loomlike (at) gmail.com


About Me    Education and Affiliation    Research Experiences    Publications    Honors


About Me

I am currently a postdoctoral researcher in the Human-Computer Interaction Institute at Carnegie Mellon University.
My research interests are in exploring the social and technical dimensions of social computing systems.
My current goal is to build computational models to infer a richer social graph from smartphone and social media data.

Machine learning (support vector machines, classifier ensemble, hybrid of fusion and selection) and ubiquitous computing are also in my research interests.

(CV, Research Statement)



Education and Affiliation

Sept. 2011 - Present
  Postdoctoral researcher at Human-Computer Interaction Institute, Carnegie Mellon University, USA
   Research topic: Augmented social graph (Supervisor: Prof. Jason I. Hong)

March 2011 - Jul. 2011
  Postdoctoral researcher at Software Application Research Center, Yonsei University, Korea
   Research topic: Context-aware with mobile-sensory information (Supervisor: Prof. Sung-Bae Cho)

March 2006 - Feb. 2011
  Ph.D. in Computer Science, Yonsei University, Korea
   Dissertation: Selective ensemble with local expert modeling for personalized mobile interaction
  (Advisor: Professor Sung-Bae Cho)

March 2004 - Feb. 2006
  M.S. in Computer Science, Yonsei University, Korea
   M.S. Thesis: An effective classification of various fingerprints using multiple decision templates of
  adaptive-block features (Advisor: Professor Sung-Bae Cho)

March 1999 - Feb. 2004
  B.S. in Computer Science, Yonsei University, Korea



Research Experiences

Development of Augmented Social Graph

Sep. 2012 - Present, Supported by the Defense Advanced Research Projects Agency, USA

  1. + Build computational models to detection user's mental health status based on smartphone and social media data

  2. + Developed models to infer richer social graph based on smartphone and social media data


Research on the Hierarchical Mining Technique for Inference of Mobile Social Contexts

Sep. 2012 - Present, Supported by National Research Foundation of Korea, Republic of Korea

  1. + Built computational models to infer interpersonal-relationships based on smartphone data



Development of High-level Context Awareness based on Multi-modal Sensor Information

Jan. 2010 - Dec. 2010, Supported by the Ministry of Knowledge Economy, Republic of Korea

  1. + Developed a novel user-interface based on multi-modal sensors such as the head tracker, data gloves, and accelerometer, and applied it to the first-person shooting game controlling

  2. + Developed an activity recognition system with Bayesian networks and support vector machines based on mobile devices and wearable sensors

Image: Sensor platform Video: Multimodal sensors-based FPS game control


Development of Context Awareness based on Self Learning for Multiple Sensors Cooperation

June. 2009 - Current, Supported by the Ministry of Knowledge Economy, Republic of Korea

  1. + Developed a traffic monitoring and accident detection model based on cooperation of multiple sensor nodes


Development of a General Gesture Recognition Technique for Sensor-based Mobile Devices

March 2009 - Oct. 2009, Supported by Samsung Electronics Co., LTD.

  1. + Constructed a gesture recognition platform based on the built-in 3D-accelerometer and gyroscope

  2. + Developed a general gesture recognition model by using probabilistic selection of localized dynamic time warping for mobile phone interaction

Image: Prototype sensor platform Video: Gesture UI


Development of High-level Semantic Information Retrieval for the Smart Broadcasting Services

Jan. 2009 - Dec. 2009, Supported by the Ministry of Knowledge Economy, Republic of Korea

  1. + Developed user preference-based summarization and retrieval methods based on the dynamic Bayesian network for multiple camera broadcast systems

Video: Multi-camera view summarization system


Development of the Load Balancing Technique for Mobile Context-awareness

June 2008 - Nov. 2008, Supported by Samsung Electronics Co., LTD.

  1. + Developed a hybrid model of behavior selection networks and Bayesian networks to recognize contexts cost efficiently

  2. + Developed a social-context inference technique based on mobile logs for social networking and sharing services


Image: Activity recognition sensor platform 		Image: Mobile social network modeling


Development of the Time-series Context-aware Technique with Multiple Sensory Information for Mobile Users

June 2008 - Nov. 2008, Supported by Samsung Electronics Co., LTD.

  1. + Constructed a personal-context model by using Bayesian networks and recognized users�� emotion, stress, and activity

  2. + Developed SmartPhonebook (Context-aware callee recommendation)

Video: SmartPhonebook



Publications

Under Review (3)

  1. + J. Wiese, J.-K. Min, J.I. Hong, and J. Zimmerman, "Mobile phone behavior as a predictor of closeness," CHI 2013

  2. + J.-K. Min, J. Wiese, J.I. Hong, and J. Zimmerman, "Inferring social circles from egocentric data of mobile phone and online social network site," HotMobile 2013

  3. + J. Wiese, J.-K. Min, J.I. Hong, and J. Zimmerman, "Examining the contact list: Opportunities for making social inferences and improving design," HotMobile 2013


International Journal (5)

  1. + J.-K. Min and S.-B. Cho, "Semantic management of multiple contexts in a pervasive computing framework," Expert Syst. Appl. , vol. 39, no. 10, pp. 8655-8664, 2012 (SCIE)

  2. + J.-K. Min and S.-B. Cho, "Mobile human network management and recommendation by probabilistic social mining," IEEE Trans. Systems, Man, and Cybernetics--Part B: Cybernetics , vol. 41, 2011. (SCI)

  3. + J.-K. Min, J.-H. Hong, and S.-B. Cho, "Fingerprint classification based on subclass analysis using multiple templates of support vector machines," Intelligent Data Analysis, vol. 14, no.3, pp. 369-384, Aug. 2010. (SCIE)

  4. + J.-H. Hong, J.-K. Min, U.-K. Cho and S.-B. Cho, "Fingerprint classification using one-vs-all support vector machines dynamically ordered with naive Bayes classifiers," Pattern Recognition, vol. 41, no. 2, pp. 662-671, Feb. 2008. (SCI)

  5. + J.-K. Min and S.-B. Cho, "Multiple decision templates with adaptive features for fingerprint classification," Int. J. Pattern Recognition and Artificial Intelligence, vol. 21, no. 8, pp. 1323-1338, Dec. 2007. (SCIE)


International Conference (15)

  1. + J.-K. Min, J. Wiese, J.I. Hong, and J. Zimmerman, "Mining smartphone data to classify life-facets of social relationships," ACM Conf. Computer Supported Cooperative Work and Social Computing (CSCW 2013), (Accepted).

  2. + J.-K. Min and S.-B. Cho, "Activity recognition based on wearable sensors using selection/fusion hybrid ensemble," in Proc. of IEEE SMC 2011, pp. 1319-1324, 2011.

  3. + J.-K. Min and S.-B. Cho, "A hybrid context-aware wearable system with evolutionary optimization and selective inference of dynamic Bayesian networks," in Proc. of the 6th Int. Conf. on Hybird Artificial Intelligence Systems (HAIS2011), pp. 444-451, 2011.

  4. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "Enhancing hand gesture recognition using fuzzy clustering-based mixture-of-experts model," in Proc. of the 5th Int. Conf. on Ubiquiouts Information Management and Communication (ICUIMC 2011) , (Accepted).

  5. + J.-K. Min, B. Choe, and S.-B. Cho, "A selective template matching algorithm for short and intuitive gesture UI of accelerometer-builtin mobile phones," in Proc. of the World Congress on Nature and Biologically Inspired Computing (NaBIC2010), pp. 667-672, 2010.12.

  6. + B. Choe, J.-K. Min, and Sung-Bae Cho, "Online gesture recognition for user interface on accelerometer built-in mobile phones," in Proc. of the 17th International Conference on Neural Information Processing (ICONIP 2010), LNCS 6444, pp. 650-657, 2010.11.

  7. + J.-K. Min, S.-H. Jang, and S.-B. Cho, "Mining and visualizing mobile social network based on Bayesian probabilistic model," in Proc. of the 6th International Conference on Ubiquitous Intelligence and Computing (UIC 2009), LNCS 5585, pp. 111-120, 2009.07.

  8. + J.-K. Min, J.-W. Yoon, and S.-B. Cho, "A flexible and proactive mobile agent based on Bayesian context estimation," in Proc. of 3rd Int. Workshop on Emergent Intelligence on Networked Agents, pp. 5-8, 2009.05.

  9. + J.-K. Min, H.-T. Kim, and S.-B. Cho, "Social and personal context modeling for contact list recommendation on mobile device," in Proc. of 2008 IEEE/WIC/ACM Int. Conf. on Web Intelligence and Intelligent Agent Technology (WI-IAT 2008), pp. 381-384, 2008.12.

  10. + H.-S. Park, S. Lim, J.-K. Min, and S.-B. Cho, "Optimal view selection and event retrieval in multi-camera office environment," in Proc. of IEEE Int. Conf. on Multisensor Fusion and Integration for Intelligent Systems (MFI 2008), pp. 106-110, 2008.08.

  11. + J.-K. Min and S.-B. Cho, "Multiple classifier fusion using k-nearest localized templates," in Proc. of the 8th Int. Conf. on Intelligent Data Engineering and Learning (IDEAL 2007), LNCS 4881, pp. 447-456, 2007.12.

  12. + J.-K. Min, J.-H. Hong and S.-B. Cho, "Ensemble approaches of support vector machines for multiclass classification," in Proc. of Int. Conf. on Pattern Recognition and Machine Intelligence (PReMI 2007), LNCS 4815, pp. 1-10, 2007.12.

  13. + J.-K. Min, J.-H. Hong and S.-B. Cho, "Effective fingerprint classification by localized models of support vector machines," in Proc. of Int. Conf. on Biometric Authentication (ICBA 2006), LNCS, pp. 287-293, 2006.01.

  14. + S. R. Yang, J. K. Min, and S.-B. Cho, "Strategic coalition of multi-agents for modeling an evolutionary labor market," in Proc. of the 5th Int. Conf. on Simulated Evolution and Learning (SEAL 2004), 2004.

  15. + S. R. Yang, J. K. Min, and S.-B. Cho, "Agent-based evolutionary labor market model with strategic coalition," in Proc. of the 17 Australian Joint Conf. on Artificial Intelligence (AJCAI 2004), LNCS 3339, pp. 1-13, 2004.12.


International Patent (1)

  1. + Kwan-Lae Kim, Hae-Don Chon, Yun-Je Oh, Sung-Bae Cho, Jun-Ki Min, Apparatus and Method for Recommending a Communication Party According to a User Context Using a Mobile Station, Samsung Electronics Co., Ltd. (Reg. Date: Feb. 4, 2010, Reg. No.: US 2010/0029260 A1)


Domestic Journal (8)

  1. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "Gesture recognition for wearable user interface of immersive virtual reality based on mixture-of-experts," Journal of KHCI (In press).

  2. + B. Choe, J.-K. Min, and S.-B. Cho, "Mobile gesture recognition using dynamic time warping with localized template," Journal of KIISE: Computing Practices and Letters, vol. 16, no. 4, pp. 482-486, 2010.

  3. + J.-K. Min, S.-H. Jang, and S.-B. Cho, "Probabilistic inference of user's context for mobile social network services," Journal of KIISE: Computing Practices and Letters, vol. 16, no. 3, pp. 361-365, 2010.

  4. + H.-T. Kim, J.-K. Min, and S.-B. Cho, "Bayesian inference and context-tree matching method for intelligent services in a mobile environment," Journal of KIISE: Software and Application, vol. 36, no. 2, pp. 144-152. 2009.

  5. + J.-K. Min and S.-B. Cho, "Multiple Classifier Fusion Method based on k-Nearest Templates," Journal of KIISE: Computing Practices and Letters, vol. 14, no. 4, pp. 451-455, 2008.

  6. + J.-K. Min and S.-B. Cho, "A Robust Fingerprint Classification using SVMs with Adaptive Features," Journal of KIISE: Software and Applications, vol. 35, no. 1, pp. 41-49, 2008.

  7. + J.-H. Hong, J.-K. Min, U.-K. Cho, and S.-B. Cho, "Effective fingerprint classification using subsumed one-vs-all support vector machines and naive Bayes classifier," Journal of KISS: Software and Applications, vol. 33, no. 10, pp. 886-895, 2006.

  8. + J.-K. Min, J.-H. Hong, and S.-B. Cho, "Fingerprint classification using multiple decision template with SVM," Journal of KISS: Software and Applications, vol. 32, no. 11, pp. 1136-1146, 2005.


Domestic Conference (16)

  1. + J.-K. Min and S.-B. Cho, "Local-model estimation and its probabilistic selection for effective application of wearable-sensors based computer interface," in Proc. of KHCI 2011 (Accepted).

  2. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "First-person shooting game interface using clustering-based multiple non-gesture rejection models," in Proc. of KHCI 2011 (Accepted).

  3. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "Clustering-based multiple non-gesture rejection model for on-line gesture recognition," in Proc. of the 37th KIISE Fall Conference, vol. 37, no. 2(A), pp. 131-132, 2010.

  4. + J.-W. Hwang, J.-K. Min, and S.-B. Cho, "Gesture recognition using nonlinear analysis method of 3D acceleration and dynamic Bayesian network," in Proc. of the 37th KIISE Fall Conference, vol. 37, no. 2(A), pp. 68-69, 2010.

  5. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "Self-organizing map based mixture-of-experts model for efficient hand gesture recognition," in Proc. of KCC, vol. 37, no. 1(A), pp. 254-255. 2010.

  6. + J. K. Min, H.-S. Park, and S.-B. Cho, "Summarization of soccer video based on multiple cameras using dynamic Bayesian network," in Proc. of KHCI 2009, pp. 567-571, 2009.

  7. + J.-K. Min and S.-B. Cho, "Bayesian network based automatic summarization of photos using user's context on mobile device and image annotation," in Proc. of KCC, vol. 35, no. 1, pp. 425-428, 2008.

  8. + S.-J. Lim, J.-K. Min, H.-S. Park, and S.-B. Cho, "Bayesian network based event recognition in multi-camera environment," in Proc. of KCC, vol. 34, no. 1(C), pp. 248-251, 2007.

  9. + J.-K. Min and S.-B. Cho, "An algorithm for GPS outage restoration using short-range information sharing of mobile devices," in Proc. of KCC, vol. 34, no. 1(C), pp. 366-369, 2007.

  10. + S.-B. Im, H.-S. Park, J.-K. Min, K.-S. Hwang, and S.-B. Cho, "Video summarization system based on multi-camera," in Proc. of the 33rd KISS Fall Conference, vol. 33, no. 2(B), pp. 44-48, 2006.

  11. + J.-K. Min and S.-B. Cho, "An adaptive feature extraction method for effective classification of various fingerprints," in Proc. of KCC, vol. 33, no. 1(B), pp. 262-264, 2006.

  12. + J.-H. Hong, J.-K. Min, and S.-B. Cho, "SOM-based combination method of OVA SVMs for effective fingerprint classification," in Proc. of KCC, vol. 32, no. 1, pp. 622-624, 2005.

  13. + J.-K. Min, J.-H. Hong, and S.-B. Cho, "Fingerprint classification using SVM combination models based on multiple decision templates," in Proc. of KCC, vol. 32, no. 1, pp. 751-753, 2005.

  14. + J.-K. Min, E.-K. Yun, and S.-B. Cho, "SVM-NN two-stage classifier for large scale fingerprint classification," in Proc. of Conf. on Information Security and Cryptology, pp. 23-26, 2004.

  15. + S.-R. Yang, J.-K. Min, S.-B. Cho, "Empirical analysis of labor market using evolutionary agents with strategic coalition," in Proc. the 31st KISS Spring Conference, pp. 574-576, 2004.

  16. + J.-K. Min, E.-K. Yun, and S.-B. Cho, "Two-level classification for large-scale fingerprint identification system," in Proc. of the 31st KISS Spring Conference, pp. 730-732, 2004.


Domestic Patent (1)

  1. + Sung-Bae Cho, Jun-Ki Min, and Han-Saem Park, System and Method for Personalized DMB Broadcast based on Dynamic View Selection of Multiple Video-Cameras, Yonsei University Office of Research Affairs. (Reg. Date: June 25, 2010, Reg. No.: 0967658)



Honors and Awards

Human-Tech thesis prize from Samsung Electronics Co., LTD.

  1. + J.-K. Min, "Selective ensemble of local-model for adaptive mobile interaction," Feb. 2011.

 

Good Paper Award from Korea Human-Computer Interaction Society

  1. + J.-W. Yoon, J.-K. Min, and S.-B. Cho, "Gesture recognition for wearable user interface of immersive virtual reality based on mixture-of-experts," Journal of KHCI, Jan. 2011.

 

Good Paper Award from Korea Information Science Society

  1. + J.-W. Hwang, J.-K. Min, and S.-B. Cho, "Gesture recognition using nonlinear analysis method of 3D acceleration and dynamic Bayesian network," Proc. of the 37th KIISE Fall Conference, vol. 37, no. 2(A), pp. 68-69, 2010.

  2. + B. Choe, J.-K. Min, and S.-B. Cho, "Mobile gesture recognition using dynamic time warping with localized template," J. of KIISE: Computing Practices and Letters, vol. 16, no. 4, pp. 482-486, 2010.

  3. + J.-K. Min, S.-H. Jang, and S.-B. Cho, "Probabilistic inference of user's context for mobile social network services," J. of KIISE: Computing Practices and Letters, vol. 16, no. 3, pp. 361-365, 2010.

  4. + H.-T. Kim, J.-K. Min, and S.-B. Cho, "Bayesian inference and context-tree matching method for intelligent services in a mobile environment," J. of KIISE: Software and Application, vol. 36, no. 2, pp. 144-152. 2009.

  5. + J.-K. Min and S.-B. Cho, "Multiple classifier fusion method based on k-nearest templates," J. of KIISE: Computing Practices and Letters, vol. 14, no. 4, pp. 451-455, 2008.

  6. + J.-H. Hong, J.-K. Min, and S.-B. Cho, "Effective fingerprint classification with dynamic integration of OVA SVMs," Proc. of the 31st KISS Spring Conf., 2005.

 

Brain-Korea 21 excellent student award from Dept. of Computer Science, Graduate School of Yonsei University (Feb. 2008)

Last update: 4 Dec 2012