Liang, Waley W. J.
I am a third-year Ph.D student in the Department of Applied Mathematics and Statistics
at UC Santa Cruz. Under the supervision of Prof. Lee,
my current research focuses on modeling non-stationary random
fields with treed Gaussian processes. The idea is that a
non-stationary random field can be partitioned into disjoint stationary
regions and each can be modeled by a stationary process. In my
model, a single non-stationary Gaussian process generated by
process-convolution is fitted over the spatial domain. Bayesian
CART (Classification and Regression
Trees) is used to partition the Gaussian random field such
that each partition is locally stationary. This results in a number of
different partitioning configurations whose posterior distribution is
explored via Reversible Jump MCMC, and the MAP (maximum a posteriori)
configuration is picked as the desired model. For more details,
please consult the report of my Master's project.
Teaching Assistant
Fall 2008: AMS 5
Winter 2008: AMS 206
Fall 2007: AMS 7 (lab tutor)
Location and Contact
Office: Baskin Engineering, room 146
Email: wliang at ucsc.edu OR wliang at soe.ucsc.edu
Background
I immigrated to
the U.S. from Canton China in 1996 and have been living in San
Francisco most of the time. I went to Benjamin Franklin Middle
School and Thurgood Marshall Academic High School in S.F. from 1996 to
2001. After that, I spent my college life at the University
of California, Berkeley and graduated with B.S. in Electrical
Engineering and Computer Science in 2005. Here is a copy of my resume, though it is somewhat out of date.
Hobbies
During my spare time, I like to play table tennis, Chinese chess, piano, guitar, and Tai Chi.
Links