I work at Google.
Algorithms, optimization, Web search and data mining. I am particularly interested in the nexus of computer science and the social sciences.
This Wikipedia entry is quite accurate.
Home page for the book Introduction to Information Retrieval co-authored with Christopher D. Manning and Hinrich Schuetze. We are seriously contemplating a second edition. Seriously.
Many years ago I co-authored a text Randomized Algorithms with the late Rajeev Motwani. See also this special issue.
I serve as Chair of the Board of Trustees of the International Computer Science Institute and co-chair of the scientific advisory board of the new Simons Institute at Berkeley. I also serve on the board of trustees of the Mathematical Sciences Research Institute, Berkeley.
I am a member of the IW3C2, the body that oversees the annual International World Wide Web conference series.
You can reach me by email at acm.org. My userid is an anagram of graph and consists of my first initial followed by the first four letters of my last name. My twitter handle is WittedNote.