i am a senior research scientist at microsoft research in new york city, where my work in the area of computational social science involves applications of statistics and machine learning to large-scale social data. i was previously a member of the social dynamics group at yahoo! research. i received my ph.d. from columbia university's physics department where i am an adjunct professor in the applied math department. please see my resume for more project and background information.
this site serves several purposes, from presenting and organizing my current research and teaching efforts to publishing code and tips that i hope others will find useful.
i bookmark lots of references on delicious, occasionally tweet things, post random tidbits on tumblr, and share photos on flickr.
my latest geek tips, also available on twitter, tumblr, or as plain text:
20.12.05.16. rstats: use tikzDevice to get nicely rendered latex in plots http://bit.ly/2g17qE1
20.12.05.16. rstats: use latex2exp to get latex in plot lables http://bit.ly/2g1bZOA
22.214.171.124. macosx: set java environment using export JAVA_HOME=`/usr/libexec/java_home` http://bit.ly/2eXuGRf
20.11.08.16. latex: use detex doc.tex | wc -w or texcount doc.tex to count words in a rendered document http://bit.ly/2eIRK65
20.11.03.16. rstats: new ways to hide part of a legend: scale_size(guide = F) or guides(size = F) http://bit.ly/2eXS1CI