Practical lessons of data mining at Yahoo!

ABSTRACTThe usage of data in many commercial applications has been growing at an unprecedented pace in the last decade. While successful data mining efforts lead to major business advances, there were also numerous, less publicized efforts that for one or another reason failed. In this paper, we discuss practical lessons based on years of our data mining experiences at Yahoo! and offer insights into how to drive the data mining effort to success in a business environment. We use two significant Yahoo's applications as illustrative examples: shopping categorization and behavioral targeting; and reflect on four success factors: methodology, data, infrastructure, and people.