Welcome to Chih-Jen Lin's Home Page
We are recruiting new students.
Research
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Machine Learning:
Algorithms and software for machine learning.
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Operations Research:
Large-scale Nonlinear Optimization.
- We always welcome new students to join our lab.
Software and research projects
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LIBSVM:
a simple and easy-to-use
support vector machines
tool for classification (C-SVC, nu-SVC),
regression (epsilon-SVR, nu-SVR), and
distribution estimation.
It includes a GUI for both classification and regression.
Version 1.0 released in April 2000.
Current Version: 3.36,
May 2025.
See software document published in ACM TIST:
pdf,
ps.gz,
ACM digital lib.
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LIBLINEAR:
a library for large linear classification.
It is very suitable for document classification.
Version 1.0 released in April 2007.
Current Version: 2.49,
May 2025.
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sparsekmeans:
efficient kmeans implementations for clustering large-scale sparse data.
Initial release: June 2025. See latest release via the link.
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LibMultiLabel:
a library for multi-label classification.
Initial release: April 2021. See latest release via the link.
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LIBMF:
LIBMF: A matrix-factorization library for recommender systems.
Version 1.0 released in September 2013.
Current Version: 2.01,
February 2015.
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LIBFFM:
LIBFFM:
A library for field-aware factorization machines.
Version 1.0 released in Febryary 2015
Current Version: 1.0,
February 2015.
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BSVM :
a simple decomposition method
for
support vector machines
for large classification.
It has faster convergence in difficult cases.
Version 1.0 released in January 2000. Current Version: 2.09,
December 2018.
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NMF :
a simple and easy-to-use
MATLAB/Python code for Nonnegative Matrix Factorization.
Version 1.0 released in October 2005. Current Version: 1.01, December 2005.
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TRON:
Trust region Newton Method for large
bound-constrained optimization, released June 1999.
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Other miscellaneous software
Courses
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Distinguished Professor, Department of
Computer Science and and Information
Engineering, National Taiwan
University. August 2011--
(Assistant Professor, August 1998--2002, Associate Professor, 2002--2006, Professor, 2006--)
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Affiliated professor, MBZUAI, Abu Dhabi, UAE, December 2022--
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Adjunct Professor, Graduate Institute of
Networking and Multimedia
, National Taiwan
University. August 2006--
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Ph.D., Department of Industrial
and Operations Engineering ,
University of Michigan, September
1995--May 1998.
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M.S.E., Department of Industrial
and Operations Engineering ,
University of Michigan, September
1995--December 1996.
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B.S. Department of Mathematics,
National Taiwan University, October
1989--June 1993.
Room 413, Department of Computer Science
National Taiwan University
Taipei, Taiwan, 106
Tel: (886) 2-3366-4923
Fax: (886) 2-2362-8167
cjlin@csie.ntu.edu.tw