Since having kids—Leo was born in 2008 and Felix in 2012—my hobbies have been pretty taken over by theirs: swimming, soccer, lego, and crafts. (So far these are mostly Leo's, but Felix will be adding to this list soon!)

Besides computer science research and teaching, I enjoy designing logos. My favorite logos have simple designs without lots of bells and whistles. Here are some of my designs:

Stanford InfoLab's old logo	ACM SIGMOD logo	IEEE Data Engineering logo

And more here:

• VLDB 2011 logo
• SIGMOD Anthology (now decommissioned) logo
• SIGMOD Digital Review (now decommissioned) logo
• More Stanford InfoLab logos
• Carolina Database Research Group logo
• Duke Database Research Group logo (a rip-off of the official Duke Blue Devils logo)

Despite being a computer science professor for more than ten years, I still enjoy programming.

Back when PowerPoint didn't have an integrated equation tool with acceptable math fonts, I designed a TrueType font of database symbols and TexPoint macros for using them in PowerPoint (Wayback Machine URL).

Way back when WWW was just emerging, I set up a web-based alumni group site for No. 7 High School of Chengdu, which I attended in China. The site evolved into an unofficial website for the school, before I retired it when the official site came to existence. My wife (from the same high school, by the way) often uses my failure to turn it into a startup company as an example of my "business-unsavviness."

For more immature personal rumblings, visit my old homepage at Stanford.