소개
Prof. 구자용
Tel: (02)3290-2240
E-mail: jykoo@korea.ac.kr
- About Professor
- Curriculum Vitae
- Publication
- Research
- Teaching
- Lab Members
-
Profile
직위 : 교수연구실 : 정경관 433호주요연구영역 : Function estimation, Data mining -
Curriculum Vitae
학력
1984. 9 ~ 1988. 8 University of California-Berkeley, 박사1980. 3 ~ 1984. 2 서울대학교 계산통계학과, 학사경력
2012. 3 ~ 2014.3 고려대학교 통계연구소 소장2004. 8 ~ 현재 고려대학교 통계학과 교수2002. 3 ~ 2004. 8 인하대학교 통계학과 정교수1988. 9 ~ 2002. 2 한림대학교 조교수, 부교수, 정교수1994. 9 ~ 1995. 8 Stanford University 방문교수 -
Publications
저서
• 데이터 마이닝, 구자용 외 4명, 한국방송통신대학교출판부, 2004. 7• Matrix Algebra, Peter T. Kim and Koo J.-Y., 자유아카데미, 2010. 2연구논문
국제학술지• Kwang-Rae Kim, Peter T. Kim, Ja-Yong Koo, Michael R Pierrynowski (2012), “Frenet-Serret and the Estimation of Curvature and Torsion,” IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, To appear.• Byoung-Jeong Choi, Kwang-Rae Kim, Kyu-Dong Cho, Changyi Park and Ja-Yong Koo (2012),”Variable Selection for Naïve Bayes Semi-supervised,” Communications in Statistics Simulation and Computation, To appear.• L. R. Haff, P.T. Kim, J.-Y. Koo and D. St. P. Richards (2011). “Minimax estimation for mixtures of wishart distributions,” The Annals of Statistics, 2011, Vol. 39, No. 6, 3417-3440• Luo, ZM, Kim, PT, Kim, TY, Koo, JY (2011). “Deconvolution on the Euclidean motion group SE(3),” Inverse Problem, Vol. 27• Myoungshic Jhun, Koo, Ja-Yong, Bang Sung-Wan (2010). “Support Vector Machine Using k-Spatial Medians Clustering and Recovery Process,” Communications in Statistics – Simulation and Computation, Vol. 39, 1422-1434.• Peter T. Kim, Koo J.-Y. (2010). “Intrinsic shape analysis: geodesic pca for Riemannian manifolds modulo isometric lie group actions comment,” Statistica Sinica, Vol. 20, pp 72-76.• Stephan F. Huckemann, Peter T. Kim, Koo J.-Y., and Axel Munk (2010). "Mobius deconvolution on the hyoerbolicplane with application to impedance density estimation," Annals of Statistics, Vol. 38, pp 2465-2498.• Peter T. Kim, Koo J.-Y., and Zhi-Ming Luoa. (2009), "Weyl eigenvalue asymtotics and sharp adaptation on vector•bundles," Journal of Multivariate Analysis, Vol. 100, pp. 1962-1978.• Koo J.-Y., Lee Y., Kim. Y., and Park. C. (2008), "A Bahadur representation of the linear support vector machine,"Journal of Machine Learning Reserch, 9,1343-1368.• Koo J.-Y., and Kim. P. T. (2008), "Asymptotic minimax bounds for stochastic deconvolution over groups," IEEETransactions on Information Theory, 54, No. 1, 289-298.• Jhun, M., Jeong H. C., and Koo. J.-Y. (2008), "On the use of adaptive nearest neighbors for missing value imputation,"Communications in Statistics-Simulation and Computation, Vol. 36, pp. 1275-1286.• Park, C., Koo, J.-Y., Kim, S., Sohn, I., and Lee, J. W. (2008), "Classification of gene functions using support vector machine time-course gene expression data," Computational Statistics and Data Analysis, Vol. 52, pp. 2578-287.• Koo, J.-Y., Park, C., and Jhun, M. (2008), "A classification spline machine for building a credit scorecard," Journal of Statistical Computation and Simulation, Vol. 79. pp. 681-689.• Park, C., Koo, J.-Y., Kim, P. T., and Lee, J. W. (2008), "Stepwise feature selection using generalized logistic loss," Computational Statistics and Data Analysis, Vol. 52, pp. 3709-3718.• Koo, J.-Y., and Kim, P. T. (2008), "Sharp adaptation for spherical inverse problems with applications to medicalimaging," Journal of Multivariate Analysis, 99, 165-190.• Koo, J.-Y., Sohn, I., Kim, S., and Lee, J. W. (2006), "Structured polychotomous machine diagnosis of multiple cancer types using gene expression," Bioinfomatics, 22, 950-958.• Lee, Y., Lee, S., Koo, J.-Y. (2006), "Structured multicategory support vector machines with analysis of variancedecomposition," Biometrika, 93, 555-571.• Chirikjian, G. S., Kim, P. T. Koo, J.-Y., and Lee, C. H. (2005), "Rotational matching problems," International Journal of Computational Intelligence and Applications, 4, 1-16.• Kim, Y., and Koo, J.-Y. (2005), "Inverse boosting for monotone regression functions," Computational Statistics andData Analysis, 49 757-770.• Koo, J.-Y., and Kim, P. T. (2005), "Statistical inverse problems on manifolds," The Journal of Fourier Analysis andApplications, 11, 639-653.• Cardot, H., Koo, J.-Y., Park, H. J., and Trubuil, A. (2004), "Boosting diracs for electrophoresis," Journal ofComputational and Graphical Statistics, 13, 659-673.• Kim, P. T., Koo, J.-Y., and Park, H. J. (2004), "Sharp minimaxity and sperical deconvolution for super-smooth errordistributions," Journal of Multivariate Analysis, 90, 384-392.• Jupp, P. E., Kim, P. T., Koo, J.-Y., and Wiegert, P. (2003), "The intrinsic distribution and selection bias of long-period cometary orbits," Journal of the American Statistical Association, 98, 515-521.• Cavalier, L., and Koo, J.-Y. (2002), "Poisson intensity estimation for tomographic data using a wavelet shrinkageapproach," IEEE Transaction on Information Theory, 48, 2794-2802.• Kim, P. T., and Koo, J.-Y. (2002), "Optimal spherical deconvolution," Journal of Multivariate Analysis, 80, 21-42.• Fan, J., and Koo, J.-Y. (2002), "Wavelet deconvolution," IEEE Transactions on Information Theory, 48, 734-747.• Choi, Y., Koo, J.-Y., and Lee, N.-Y. (2001), "Image reconstruction using the wavelet transform for positron emission tomography," IEEE Transactions on Medical Imaging, 20, 1188-1193.• Kang, K.-H., Koo, J.-Y., and Park, C.-W. (2000), "Kernel estimation of discontinuous regression functions," Statistics and Probability Letters, 47, 277-285.• Koo, J.-Y., and Kooperberg, C. (2000), "Logspline density estimation for binned data," Statistics and ProbabilityLetters, 46, 133-147.• Kim, P. T., and Koo, J.-Y. (2000), "Directional mixture models and optimal estimation of the mixing density," TheCanadian Journal of Statistics, 28, 383-398.• Doksum, K., and Koo, J.-Y. (2000), "On spline estimators and prediction intervals in nonparametric regression,"Computational Statistics and Data Analysis, 35, 67-82.• Koo, J.-Y., Kooperberg, C. and Park, J. (1999), "Logspline density estimation under censoring and truncation,"Scandinavian Journal of Statistics, 26, 87-105.• Koo, J.-Y. (1999), "Logspline deconvolution in Besov space," Scandinavian Journal of Statistics, 26, 73-86.• Koo, J.-Y., and Lee, K.-W. (1998), "B-spline estimation of regression functions with errors-in-variables," Statistics and Probability Letters, 40, 57-66.• Koo, J.-Y., and Chung, H.-Y. (1998), "Log-density estimation in linear inverse problems," The Annals of Statistics,26, 335-362.• Koo, J.-Y. (1998), "Convergence rates for logspline tomography," Journal of Multivariate Analysis, 67, 367-384.• Koo, J.-Y. (1997), "Spline estimation of discontinuous regression functions," Journal of Computational and Graphical Statistics, 6, 266-284.• Chung, H.-Y., Lee, K.-W., and Koo, J.-Y. (1996), "A note on bootstrap model selection criterion," Statistics andProbability Letters, 26, 35-41.• Koo, J.-Y., and Park, B. U. (1996), "B-spline deconvolution based on the EM algorithm," Journal of StatisticalComputation and Simulation, 54, 275-288.• Koo, J.-Y., and Kim, W.-C. (1996), "Wavelet density estimation by approximation of log-densities," Statistics andProbability Letters, 26, 271-278.• Koo, J.-Y. (1996), "Bivariate B-splines for tensor logspline density estimation," Computational Statistics and DataAnalysis, 21, 31-42.• Koo, J.-Y., and Lee, Y. (1994), "Bivariate B-splines in generalized linear models," Journal of Statistical Computation and Simulation, 50, 119-129.• Koo, J.-Y. (1993), "Optimal rates of convergence for nonparametric statistical inverse problems," The Annals ofStatistics, 21, 590-599.국내학술지• Kyu-Dong Cho, Eunjee Lee, Taehee Seo, Kwang-Rae Kim and Ja-Yong Koo (2012),”Visualization of Battleneck Distances for Persistence Diagram,” The Korean Journal of Applied Statistics, 25(6), 1009-1018.• 여재구, 박창이, 구자용 (2011). “평점화 모형에서 입력변수의 절단값 선택 방법의 비교,” 자료분석학회, Vol. 13, No. 6 (B), pp. 2915-2923.• 구자용, 김광래, 조규동 (2010). “이항 선택 모형에서의 절단 모수 선택,” 한국통계학회 논문집, Vol 17, pp 811-827.• 조규동, 김광래, 이경윤, 구자용 (2009). "신용평점에서 성김화에 대한 스플라인 방법과 대화식 그룹핑의 비교,"자료분석학회, Vol 11, pp 2579-2590.• 최병정, 채윤석, 최우영, 박창이, 구자용. (2008) "정규 혼합분포를 이용한 준지도 학습," 응용통계연구, 1차 교정중.• 송석헌, 김경희, 박창이, 구자용 (2007), "붓스트랩 방법을 활용한 SVM 기반 유전자 선택 기법," 응용통계연구, 제 20권3호, 531-540.• Lee, S., Park, C., Jhun, M., and Koo, J.-Y. (2007), "Support vector machine using K-means clustering," Journal ofKorean Statistical Society, 36, 175-182.• 구자용, 최대우, 최민성 (2005), "스플라인을 이용한 신용 평점화," 응용통계연구, 제 18권 3호, 543-553.• 최대우, 구자용, 최용석. (2004), "배경자료를 이용한 나무구조의 군집분석," 응용통계연구, 제 17권, 535-545.• Kim, W.-C., and Koo, J.-Y. (2002), "Inhomogeneous Poisson intensity estimation via information projections ontowavelet subspaces," Journal of the Korean Statistical Society, 31, 343-357.• 구자용, 박헌진, 최대우. (2000), "데이터 마이닝에서의 폴리클라스," 응용통계연구, 제 13권, 489-503.• Kim, W.-C., and Koo, J.-Y. (1999), "Wavelet estimation of regression function with errors in variables," The KoreanCommunications of Statistics, 6, 849-859.• 정한영, 이기원, 구자용. (1994), "최소카이제곱추정과 붓스트랩," 응용통계연구, 제 7권, 269-277.• Koo, J.-Y. (1992), "Optimal rates of convergence in tensor Sobolev space regression," Journal of the Korea Statistical Society, 21, 153-166.• Koo, J.-Y. (1991), "Discssion on "Advances in data driven bandwidth selection," Journal of the Korean StatisticalSociety, 20, 16-28.• Koo, J.-Y. (1990), "Optimal rates of convergence for tensor spline regression estimators," Journal of the KoreanStatistical Society, 19, 105-112.국내 학술회의 Proceeding• Stone, C. J., and Koo, J.-Y. (1986), "Additive splines in statistics. Proceedings of American Statistical Association," Statistical Computing Section, 45-48. -
Research
준비 중입니다.
-
Teaching
준비 중입니다.
-
Lab Members
준비 중입니다.