학과소개

교수소개
 학과소개 교수소개
이름 김경옥
전공 데이터마이닝
과목 심화 기계 학습, 비즈니스 어낼리틱스
 
TEL 02-970-7286
E-mail kyoungok.kim@seoultech.ac.kr
연구실 프론티어관 712-1호
 
교수소개 돌아가기

학력

2013.08. Ph.D in Department of Industrial and Management Engineering, POSTECH (Pohang University of Science and Technology),
2008.02. B.S. in Materials Science and Engineering, POSTECH

주요 경력

2015.03. ~ 2015.09. : Research Fellow, Industry & Strategy Department Ⅰ, Samsung Economic Research Institute
2013.09. ~ 2015.02. : Research Associate, Industry & Strategy Department Ⅰ, Samsung Economic Research Institute

연구 분야

Statistical Analysis, Learning, and Data Mining:
Kernel methods, Clustering, Multivariate data analysis, Support vector machines, Neural networks, Data Mining of business problems such as marketing and business, Dimensionality reduction

담당 교과목

Data Mining

주요논문 및 저서

A. International Journals

1. Kyoungok Kim, Youngdoo Son and Jaewook Lee, Voronois Cell-based Clustering Using a Kernel Support, IEEE Trans. on Knowledge and Data Engineering, accepted (available online)
2. Kyoungok Kim and Jaewook Lee, Nonlinear Dynamic Projection for Noise Reduction of Dispersed Manifolds, IEEE Trans. on Pattern Analysis and Machine Intelligence, 36(11): 2303-2309 (2014)
3. Kyoungok Kim, Chi-hyuck Jun and Jaewook Lee, Improved Churn Prediction in Telecommunication Industry by Analyzing a Large Social Network, Expert Systems With Application, 41(15): 6575-6584 (2014)
4. Kyoungok Kim and Daewon Lee, Inductive Manifold Learning using Structured Support Vector Machine, Pattern Recognition, 47(1): 470-479 (2014)
5. Kyoungok Kim and Jaewook Lee, Sentiment Visualization and Classification via Semi-supervised Nonlinear Dimensionality Reduction, Pattern Recognition, 47(2): 758-768 (2014)
6. Samory Kpotufe, Abdeslam Boularias, Thomas Schultz, and Kyoungok Kim, Gradients Weights improve Regression and Classification, Journal of Machine Learning Research, under review
7. Sanguk Lee, Kyoungok Kim, Hyeseon Lee, Chi-Hyuck Jun, Hoeil Chung and Jong-Jae Par, Improving the Classification Accuracy for IR Spectroscopic Diagnosis of Stomach and Colon Malignancy using Non-linear Spectral Feature Extraction, Analyst, 138(14): 4076-4082 (2013)
8. Kyoungok Kim and Jaewook Lee, Sequential Manifold Learning for Efficient Churn Prediction, Expert Systems With Application, 39(18): 13328-13337 (2012)

B. International Conferences

1 Kyoungok Kim, Chi-Hyuck Jun, and Jaewook Lee, Churn Prediction using Social Network Analysis, Asia Pacific Industrial Engineering and Management Society (APEIMS) 2012 Conference, Phuket, Thailand, Dec. 2012
2 Kyoungok Kim, Namhyoung Kim, Jaewook Lee, Seok Kang and Taewon Suh, City Web Site and Engagement: A Bayesian Belief Network Approach, AMA Winter Marketing Educators¢®? Conference 2012, St. Petersburg, USA, Feb. 2012
3 Misuk Kim, Kyoungok Kim and Jaewook Lee, Multi-Basin Neighbor Search method for global optimization, Asia Pacific Industrial Engineering and Management Society (APEIMS) 2011 Conference, Beijing, China, Oct. 2011
4 Namhyoung Kim, Kyu-Hwan Jung, Kyoungok Kim and Jaewook Lee, Barrier Option Pricing with Model Averaging Methods, Asia Pacific Industrial Engineering and Management Society (APEIMS) 2009 Conference, Kitakyushu, Japan, Dec. 2009

C. Domestic Journals/Conferences

1 Kyoungok Kim, Hyeseon Lee, Chi-Hyuck Jun, Sanguk Lee, Hoeil Chung, and Jong-Jae Park, Classification of cancer malignancy using nonlinear dimensionality reduction, Korean Institute of Industrial Engineers 2013 Spring Conference, Yeosu, Korea, May. 2013
2 Kyoungok Kim, Jaewook Lee, and Daewon Lee, Inductive Manifold Learning using Structured Support Vector Machine, Korea BI Data Mining 2012 Fall Conference, Busan, Nov. 2012
3 Kyoungok Kim and Jaewook Lee, Sequential Nonlinear Dimensionality Reduction for Churn Prediction, Korean Institute of Industrial Engineers 2012 Spring Conference, Gyeongju, Korea, May. 2012
4 Kyoungok Kim and Jaewook Lee, Empirical study of lower bound of improved fast Gaussian transform, Korean Institute of Industrial Engineers 2010 Spring Conference, Jeju, Korea, Jun. 2010

저널 논문

◾ A hybrid decision tree algorithm for mixed numeric and categorical data in regression analysis, PATTERN RECOGNITION LETTERS, vol.98 pp.39~45, 2017
◾ A weighted k-modes clustering using new weighting method based on within-cluster and between-cluster impurity measures, JOURNAL OF INTELLIGENT FUZZY SYSTEMS, vol.32 No.1 pp.979~990, 2017
◾ A hybrid classification algorithm by subspace partitioning through semi-supervised decision tree, PATTERN RECOGNITION, vol.60 pp.157~163, 2016
◾ Gradients weights improve regression and classification, Journal of Machine Learning Research, vol.17 , 2016
◾ Voronoi Cell-Based Clustering Using a Kernel Support, IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING, vol.27 No.4 pp.1146~1156, 2015

학술대회

◾ Nguyen Thi Hanh Duyen, 김경옥, Mining Activities of Social Advocates Accounts on Twitter, 2017 대한산업공학회 추계학술대회, 대전 카이스트, 2017
◾ 장시영, 김경옥, 텍스트 분류를 위한 삼각 비교 측정을 기반으로 한 변수 선택, 2017 대한산업공학회 추계학술대회, 대전 카이스트, 2017
◾ 권현이, 김경옥, 데이터마이닝 기법을 활용한 택시 이용 Hot Spot 분석 및 지리적 특징과의 관계 파악 - 서울시를 중심으로, 2016 대한산업공학회 추계학술대회 논문집, 고려대학교, 2016
◾ 김경옥, 홍정식, A Hybrid Decision Tree Algorithm for Mixed ddata in regression Analysis, 2016 한국경영과학회 추계학술대회, KAIST(홍릉), 2016

연구프로젝트

◾ spatio-temporal 데이터의 deep learning 알고리즘을 활용한 교통/이동량 예측 모형 개발, 한국연구재단, 2017.03.~2019.02.
◾ 중소, 중견기업의 경영전략 수립을 위한 지능형 검색이 가능한 가치사슬 규명 엔진 개발, 정보통신기술진흥센터, 2016.04.~2016.12.
◾ 소셜 네트워크 확산 모형을 활용한 통신사 이탈 고객 예측, 산학협력단, 2015.11.~2016.10.
◾ 불순도 척도를 이용한 혼합 데이터를 위한 개선된 k-prototype 클러스터링 방법론, 산학협력단, 2015.10.~2016.09.

수상

◾ 자전거 불균형을 고려한 공유자전거 시스템 운영을 위한 공유자전거 이용 특성에 대한 연구, 2018 서울연구논문 공모전 서울창의상, 서울연구원, 2018
◾ 택시와 대중교통 이용 패턴 차이를 유발하는 공간적, 사회적 특성 연구, 공공데이터를 활용한 2016 서울연구논문 공모전, 서울연구원, 2016

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