i am a 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:
20.05.07.15. latex: use the footmisc package to comma separate multiple footnotes http://bit.ly/1F1PlKt
20.04.07.15. linux: use lshw to get system hardware details http://bit.ly/1O4OE5Q
20.03.18.15. rstats: use predict(model, interval="confidence") to get confidence intervals on predictions http://bit.ly/1O7gTBW
20.03.05.15. rstats: use broom to get tidy dataframes summarizing models and predictions http://bit.ly/1FfnxzY
20.02.26.15. rstats: use variables within dplyr function calls (e.g., for column names) http://bit.ly/1Gy7oXf