Yalin Wang


Department of Neurology
Department of Mathematics
(310)794-7737
UCLA
ylwang AT math DOT ucla DOT edu
Los Angeles, CA 90095

RESEARCH INTERESTS

Medical Imaging, Computer Vision, Computer Graphics, Scientific Computation and Numerical Analysis, Geometric Modeling, Geometric Visualization, Pattern Recognition, etc.

EDUCATION

University of Washington, Seattle, WA
Ph.D. in Computer Vision
9/97 - 6/02
o Dissertation title was "Document Analysis: Table Structure Analysis and Zone Content Classification".
o The best student paper award winner in "Fifth IAPR International Workshop on Document Analysis Systems", Princeton, NJ, USA, Aug. 2002.
o Teaching Assistant of student senior project in Seattle University (6/99--6/00).
o Network System Administrator of Intelligent Systems Laboratory (4/98- 6/01). Administering a subnet of 10+ SunOS and Solaris workstations and Linux PCs.
Tsinghua University, Beijing, China
M.S. Student in Computer Science
9/94 - 12/96
o Motorola Scholarship, 1995
o Teaching assistant in courses "Programming with C" and "Using and programming in MS-Windows"
Tsinghua University, Beijing, China
B.S. Student in Computer Science
9/89 - 6/94
o Excellent Graduate Scholarship of Tsinghua University, 1994
o Guanghua Scholarship, 1993
o Excellent Student Awards, ( 1990, 1991, 1992 )

WORK EXPERIENCE

Dept. of Neurology, UCLA, Dept. of Mathematics, UCLA, Los Angeles, CA

Assistant Researcher
9/02 - present
Collaborating with mathematicians in Math department and scientists in Lab of Neuro Imaging, UCLA. Working on various medical imaging research topics: brain surface conformal mapping, MIR image denoising with TV model, image segmentation with level set method, parameterization of implicit surface using level set method, etc.

Dept. of Mathematics, Harvard University, Cambridge, MA

Postdoctoral
9/03 - 12/03
Teaching a new class "Computational Conformal Geometry". Conducting research on Computational Conformal Geometry. Working on various medical imaging research topics: brain surface conformal mapping, volumetric brain harmonic map, multiresolution computation of conformal structure of surfaces, 3D geometric surface classification and identification, fluid mechanics on 3D surfaces with arbitrary topology, etc.

Dept. of Computer Science, Queens College, City University of New York, New York

Non-Teaching Adjunct Faculty
9/01 - 3/02
Working with Document Image Analysis research group. Developed a document table structure understanding system. Teaching assistant of CS 731: Software Development Practitum.

Avaya Labs Research, Basking Ridge, New Jersey

Summer Intern with Dr. Jianying Hu
6/01 - 9/01
Developed a machine learning based table detection system in web documents. The goal of this research is to find the genuine tables from the abused table tags. We defined a table ground truth protocol and built a big scale web document database. Geometric and linguistic features were defined and some machine learning techniques were studied.

Tsinghua University, Beijing, China

Associate Lecturer
12/96 - 7/97
Directed one freshman class (32 students). Participated in the research and development of 3D Computer Aided Designed systems, sponsored by National Scientific Funds.

PSC of Bell&Howell, Cleveland, Ohio

Senior System Analyst and Designer
5/96 - 6/96
The delegate of Tsinghua Information Technology Company (QHSOFT). We did beta test and released the character recognition engine software.

PROFESSIONAL ACTIVITIES

o Referee for IEEE Transactions on Pattern Analysis and Machine Intelligence
o Referee for Neuro Imaging journal
o Referee for Engineering Applications of Artificial Intelligence
o Referee for Communications in Information and Systems
o Referee for International Journal on Document Analysis and Recognition
o Referee for International Conference on Document Analysis and Recognition (ICDAR01)
o Web Master for International Conference on Document Analysis and Recognition (ICDAR01)

PUBLICATIONS
Journal Papers
  1. Y. Wang, L.M. Lui, X. Gu, K.M. Hayashi, T.F. Chan, A.W. Toga, P.M. Thompson and S.-T. Yau, "Brain Surface Conformal Parameterization using Riemann Surface Structure", IEEE Transaction on Medical Imaging, Vol. 26, No. 6, June 2007, pp. 853-865
  2. L.M. Lui, Y. Wang, T.F. Chan, and P.M. Thompson, "Brain Anatomical Feature Detection by Solving Partial Differential Equations on General Manifolds", Discrete and Continuous Dynamical Systems B, 7(3), May 2007, pp. 605-618
  3. L.M. Lui, Y. Wang, T.F. Chan and P.M. Thompson, " Landmark Constrained Genus Zero Surface Conformal Mapping and Its Application to Brain Mapping Research", Applied Numerical Mathematics, Vol. 5, 2007, pp. 847-858
  4. Y. Wang, I.T. Phillips, R.M. Haralick, "Document Zone Content Classification and Its Performance Evaluation", Pattern Recognition, 39(1), Jan. 2006, pp. 57-73
  5. Y. Wang, X. Gu, S.-T. Yau, "Surface Segmentation using Global Conformal Structure", Communications in Information and Systems, 4(2), 2005, pp. 165-180
  6. M. Jin, Y. Wang, X. Gu, S.-T. Yau, " Optimal Global Conformal Surface Parameterization for Visualization", Communications in Information and Systems, 4(2), 2005, pp. 117-134
  7. P.M. Thompson, K.M. Hayashi, E.R. Sowell, N. Gogtay, J.N. Giedd, J.L. Rapoport, G. de Zubicaray, A.L. Janke, S.E. Rose, J. Semple, D.M. Doddrell, Y. Wang, T. G.M. van Erp, T.D. Cannon, and A.W. Toga, "Mapping cortical change in Alzheimer's disease, brain development, and schizophrenia", NeuroImage, 23, September 2004, pp. S2-S18
  8. X. Gu, Y. Wang, T.F. Chan, P.M. Thompson and S.-T. Yau, "Genus Zero Surface Conformal Mapping and Its Application to Brain Surface Mapping", IEEE Transaction on Medical Imaging, 23(8), Aug. 2004, pp. 949-958
  9. Y. Wang, I.T. Phillips and R.M. Haralick, "Table Structure Understanding and Its Performance Evaluation", Pattern Recognition, 37(7), Jul. 2004, pp. 1479-1497
  10. Y. Wang, X. Gu and S.-T. Yau, " Volumetric Harmonic Map", Communications in Information and Systems, 3(3), 2004, pp. 191-202
  11. X. Gu, Y. Wang and S.-T. Yau, "Multiresolution Computation of Conformal Structures of Surfaces", Journal of Systemics, Cybernetics and Informatics, 1(5), 2004
  12. X. Gu, Y. Wang and S.-T. Yau, "Geometric Compression Using Riemann Surface Structure", Communications in Information and Systems, 3(3), 2004, pp. 171-182
  13. X. Gu, Y. Wang and S.-T. Yau, "Computing Conformal Invariants: Period Matrices", Communications in Information and Systems, 3(3), 2004, pp. 153-170.
  14. Y. Wang, L. Tang and Z. Liu, "A Heuristic Method to Recognize Dimension sets in Architectural Engineering Drawings", Journal of Computer Science and Technology, Vol. 13, suppl. Issue; pp. 94-100, Dec. 1998
Book Chapters
  1. Y. Wang, J. Hu, "Automatic Table Detection in HTML Documents", Web Document Analysis Challenges and Opportunities, A. Antonacopoulos and J. Hu (Eds.), World Scientific, 2003, pp. 135-154
Conference Papers
  1. Y. Wang, X. Gu, T.F. Chan, P.M. Thompson and S.-T. Yau, " Brain Surface Conformal Parameterization with the Ricci Flow", IEEE International Symposium on Biomedical Imaging - From Nano to Macro (ISBI), Washington D.C., USA, 2007, pp. 1312-1315
  2. B. Gutman, Y. Wang, L.M. Lui, T.F. Chan, P.M. Thompson, " Hippocampal Surface Discrimination via Invariant Descriptors of Spherical Conformal Maps", IEEE International Symposium on Biomedical Imaging - From Nano to Macro (ISBI), Washington D.C., USA, 2007, pp. 1316-1319
  3. Y. Wang, X. Gu, T.F. Chan, A.W. Toga, P.M. Thompson and S.-T. Yau, "Brain Surface Conformal Parameterization with Algebraic Functions", International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), 2006, LNCS 4191, pp. 946-954
  4. L.M. Lui, Y. Wang, T.F. Chan, and P.M. Thompson, " Landmark-based Brain Conformal Parametrization with Automatic Landmark Tracking Technique", International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), 2006, LNCS 4191, pp. 308-316
  5. B. Gutman, Y. Wang, L. M. Lui, T. F. Chan, and P.M. Thompson , " Hippocampal Surface Analysis Using Spherical Harmonic Function Applied to Surface Conformal Mapping ", 8th International Conference on Pattern Recognition (ICPR), Hong Kong, China, 2006, Vol. 3, pp. 964-967
  6. L. M. Lui, Y. Wang, T.F. Chan and P.M. Thompson, "Automatic Landmark Tracking and Its Application to the Optimization of Brain Conformal Mapping", IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR), New York, NY, Jun. 2006, Vol. 2, pp. 1784-1792
  7. Y. Wang, Chiang MC, Toga AW, Thompson PM, " Surface Mutual Information for Brain Mapping", the 12th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Florence, Italy, Jun. 11-15, 2006
  8. Y. Wang, X. Gu, T.F. Chan, A.W. Toga, P.M. Thompson, S.-T. Yau,, " Brain Surface Conformal Parameterization with Algebraic Functions", the12th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Florence, Italy, Jun. 11-15, 2006.
  9. L.M. Lui, Y. Wang, T.F. Chan, and P.M. Thompson, " Automatic Landmark Tracking and the Optimization of Brain Conformal Mapping", the 12th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Florence, Italy, Jun. 11-15, 2006.
  10. B. Gutman, Y. Wang, L.M. Lui, T.F. Chan, and P.M. Thompson, " Hippocampal Surface Analysis Using Spherical Harmomic Functions Applied to Surface Conformal Mapping", the 12th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Florence, Italy, Jun. 11-15, 2006.
  11. L. M. Lui, Y. Wang, T.F. Chan and P.M. Thompson, "Automatic Landmark Tracking Applied to Optimize Brain Conformal Mapping", IEEE International Symposium on Biomedical Imaging: From Nano to Macro (ISBI), Arlington, VA, Apr. 2006, pp. 205-208
  12. Y. Wang, M.-C. Chiang, and P.M. Thompson, "Mutual Information-based 3D Surface Matching with Applications to Face Recognition and Brain Mapping", 10th IEEE International Conference on Computer Vision (ICCV), Beijing, China, Oct. 2005, pp. 527-534
  13. Y. Wang, X. Gu, K.M. Hayashi, T.F. Chan, P.M. Thompson and S.-T. Yau, "Surface Parameterization using Riemann Surface Structure", 10th IEEE International Conference on Computer Vision (ICCV), Beijing, China, Oct. 2005, pp. 1061-1066
  14. L.M. Lui, Y. Wang, T.F. Chan, " PDE on manifold using global conformal parametrization", Variational, Geometric, and Level Set Methods in Computer Vision: Third International Workshop, VLSM 2005, Beijing, China, Oct. 16, 2005, pp. 307-319
  15. Y. Wang, M.-C. Chiang, and P.M. Thompson, "Automated Surface Matching using Mutual Information Applied to Riemann Surface Structures", Medical Image Computing and Computer-Assisted Intervention - MICCAI 2005: 8th International Conference, Palm Springs, CA, USA, Oct. 26-29, 2005, Proceedings, Part II, pp. 666-674
  16. Y. Wang, X. Gu, K.M. Hayashi, T.F. Chan, P.M. Thompson and S.T. Yau, "Brain Surface Parameterization using Riemann Surface Structure", Medical Image Computing and Computer-Assisted Intervention - MICCAI 2005: 8th International Conference, Palm Springs, CA, USA, Oct. 26-29, 2005, Proceedings, Part II, pp. 657-665
  17. Y. Wang, L.M. Lui, T.F. Chan and P.M. Thompson, "Optimization of Brain Conformal Mapping with Landmarks", Medical Image Computing and Computer-Assisted Internvention - MICCAI 2005: 8th International Conference, Palm Springs, CA USA, Oct. 26-29, 2005, Proceedings, Part II, pp. 675-683
  18. Y. Wang, M.-C. Chiang, and P.M. Thompson, "3D Surface Matching with Mutual Information and Riemann Surface Structures", Proceedings of the Eighth IASTED International Conference on Computer Graphics and Imaging (CGIM), Honolulu, HI, USA, Aug. 2005, pp. 94-99
  19. Y. Wang, X. Gu, K.M. Hayashi, T.F. Chan, P.M. Thompson and S.T. Yau, "Brain Surface Conformal Parameterization", Proceedings of the Eighth IASTED International Conference on Computer Graphics and Imaging (CGIM), Honolulu, HI, USA, Aug. 2005, pp. 76-81
  20. Y. Wang, L.M. Lui, T.F. Chan and P.M. Thompson, "Combination of Brain Conformal Mapping and Landmarks: A Variational Approach", Proceedings of the Eighth IASTED International Conference on Computer Graphics and Imaging (CGIM), Honolulu, HI, USA, Aug. 2005, pp. 70-75
  21. Y. Wang, X. Gu, K.M. Hayashi, T.F. Chan, P.M. Thompson and S.T. Yau, "Brain Surface Parameterization with Holomorphic Differential Forms", 11th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Toronto, Canada, Jun. 12-16, 2005
  22. Y. Wang, X. Gu, T.F. Chan, P.M. Thompson and S.T. Yau, "Direct Painting Software for Tracing on 3D Brain Surfaces with Global Conformal Parameterization", 11th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Toronto, Canada, Jun. 12-16, 2005
  23. Y. Wang, L.M. Lui, T.F. Chan and P.M. Thompson, "Optimization of Conformal Parameterization using Landmarks", 11th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Toronto, Canada, Jun. 12-16, 2005
  24. M. Jin, Y. Wang, S.-T. Yau and X. Gu, "Optimal Global Conformal Surface Parameterization for Visualization", IEEE Visualization, Austin, TX, Oct. 2004, pp. 267-274
  25. Y. Wang, X. Gu, T. F. Chan, P. M. Thompson and S.-T. Yau " Volumetric Harmonic Brain Mapping using a Variational Method", 10th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Budapest, Hungary, Jun. 13-17, 2004
  26. Y. Wang, X. Gu, T. F. Chan, P. M. Thompson and S.-T. Yau " Volumetric Harmonic Brain Mapping", IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Washington D.C., Apr. 2004, pp. 1275-1278
  27. Y. Wang, X. Gu, T.F. Chan, P. M. Thompson and S.-T. Yau " Brain Surface Conformal Mapping and Brain Volumetric Harmonic Map with Variational Methods", SIAM Conference on Imaging Science, Salt Lake City, Utah, May 2004
  28. Y. Wang, X. Gu, T. F. Chan, P. M. Thompson and S.-T. Yau, " Intrinsic Brain Surface Conformal Mapping using a Variational Method", Medical Imaging 2004: Image Processing, J. M. Fitzpatrick and M. Sonka (Eds.) Proceedings of SPIE, Vol. 5370, 2004, pp. 241-252
  29. X. Gu, Y. Wang, T. F. Chan, P. M. Thompson and S.-T. Yau, " Genus Zero Surface Conformal Mapping and Its Application to Brain Surface Mapping", C. Taylor and J. Alison Noble (Eds.), Information Processing in Medical Imaging,18th International Conference, IPMI 2003, Ambleside, UK, July 2003. Proceedings, pp. 172-184
  30. X. Gu, Y. Wang, T. F. Chan, P. M. Thompson and S.-T. Yau, "Brain Surface Conformal Mapping", 9th Annual Meeting of the Organization from Human Brain Mapping (OHBM), New York City, NY, Jun. 18-22, 2003
  31. X. Gu, Y. Wang, and S.-T. Yau, " Multiresolution Computation of Conformal Structures of Surfaces", International Conference on Computer, Communication and Control Technologies: CCCT '03. This paper won the best paper award in the session: Computing Technologies.
  32. Y. Wang " Document Analysis: Table Structure Understanding and Zone Content Classification", PhD dissertation, University of Washington, June 2002.
  33. Y. Wang, I.T. Phillips and R. Haralick, " A Study on the Document Zone Content Classification Problem", D. Lopresti, J. Hu, and R. Kashi (Eds.), Document Image Analysis System V, 5th International Workshop DAS 2002, Princeton, NJ, USA, Aug. 2002. Proceedings, pp. 212 - 223.
  34. Y. Wang and J. Hu, " Detecting Tables in HTML Documents"", D. Lopresti, J. Hu, and R. Kashi (Eds.), Document Image Analysis System V, 5th International Workshop DAS 2002, Princeton, NJ, USA, Aug. 2002. Proceedings, pp. 249 - 260. This paper won the best student paper award.
  35. Y. Wang, I. T. Phillips and R. Haralick, " Table Detection Via Probability Optimization", D. Lopresti, J. Hu, and R. Kashi (Eds.), Document Image Analysis System V, 5th International Workshop DAS 2002, Princeton, NJ, USA, Aug. 2002. Proceedings, pp. 272 - 282.
  36. Y. Wang, I. T. Phillips and R. Haralick, " A Method for Document Zone Content Classification", 16th International Conference on Pattern Recognition, ICPR2002, Vol. 3, pp. 196 - 199, Quebec City, Canada, Aug. 2002.
  37. Y. Wang and J. Hu " A Machine Learning Based Approach for Table Detection on The Web", The Eleventh International World Web Conference, WWW2002, pp. 242-250, Hawaii, USA, May 2002.
  38. Y. Wang, I. T. Phillips and R. Haralick, " Automatic Table Ground Truth Generation and A Background-analysis-based Table Structure Extraction Method", Sixth International Conference on Document Analysis and Recognition , pp. 528-532, Seattle, Washington, U.S.A. Sep. 10-13, 2001. A web page was created as a supplement for it.
  39. Y. Wang, R. Haralick and I. T. Phillips, " Zone Content Classification and Its Performance Evaluation", Sixth International Conference on Document Analysis and Recognition , pp. 540-544, Seattle, Washington, U.S.A. Sep. 10-13, 2001
  40. Y. Wang, I. T. Phillips and R. Haralick, " Using Area Voronoi Tessellation to Segment Characters Connected to Graphics", Workshop on Graphics Recognition (GREC2001), Kingston, Ontario, Canada. Sep. 2001
  41. Y. Wang, I. T. Phillips and R. Haralick, " Random Table and Its Ground Truth Automatic Generation: A Tool for Table Understanding Research", Workshop on Document Layout Interpretation and its Applications (DLIA2001), Seattle, Washington, U.S.A. Sep. 2001
  42. Y. Wang, R. Haralick and I. T. Phillips, "Improvement of Zone Content Classification by Using Background Analysis", Fourth IAPR International Workshop on Document Analysis Systems, Rio de Janeiro, Brazil, 10-13 December, 2000
  43. Y. Wang, I. T. Phillips and R. Haralick, " Statistical-based Approach to Word Segmentation", 15th International Conference on Pattern Recognition, ICPR2000, Vol. 4, pp.555-558, Barcelona, Spain, September 2000.
  44. S. Aksoy, M. Ye, M.L. Schauf, M. Song, Y. Wang, R. Haralick, and et al., "Algorithm Performance Contest", 15th International Conference on Pattern Recognition, ICPR 2000, vol. 4, pp. 870-876. Barcelona, Spain, Sep. 2000.
  45. Y. Wang, I. T. Phillips and R. Haralick, " From Image to SGML/XML Representation: One Method", International Workshop on Document Layout Interpretation and Its Applications (DLIA'99), Bangalore, India, September 1999
  46. Y. Wang, L. Tang, etc. " A New Method to Recognize Dimension Set and its Application in Architectural Engineering Drawings", Fifth International Conference on Computer Aided Design and Computer Graphics, Dec. 2~5, 1997, Shenzhen China
  47. Y. Wang, " High-accuracy extraction and recognition of characters in engineering drawings", M.S. thesis, Dec. 1996. Some sample engineering drawings can be found here: 1, 2, 3, 4.
  48. Y. Wang, " Research and Implementation of a new postprocessing algorithm to the engineering drawing vectorization and recognition, based on strip cutting method", B.S. thesis, June, 1994

PRESENTATION

o Presentation in IEEE Visualization 2004, Austin, TX, 2004
o Presentation in RPI Department of Electrical, Computer, and Systems Engineering Department Seminar, Troy, NY, 2004
o Presentation in MIT Computer Science Department Seminar, Cambridge, MA, 2004
o Presentation in UC Irvine Applied Mathematics Seminar, Irvine, CA, 2004
o Presentation in IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Washington DC, 2004
o Presentation in SPIE International Symposium on Medical Imaging, San Diego, CA, 2004
o Presentations in 5th International Workshop on Document Analysis System, Princeton, NJ, 2002
o Presentation in Ecompex, Inc. 2002
o Presentations in 6th International Conference on Document Analysis and Recognition, Seattle, WA 2001
o Presentations in Cambridge Research and Development, Cambridge, MA, 2001