1-4信息检索新编年 Abstract Introduction Childhood (1945-1955) The Schoolboy(1960s) 3. Adulthood (1970s) Maturity(1980s) 5. Mid-Life Crisis(1990s Michael Lesk Fulfillment(2000s) leskabellcore.com Retirement(2010) http:/wwwpurlnet/net/lesk What might go wrong What might go right? References1-4 信息检索新编年 ◼ Abstract ◼ Introduction 1. Childhood (1945-1955) 2. The Schoolboy (1960s) 3. Adulthood (1970s) 4. Maturity (1980s) 5. Mid-Life Crisis (1990s) Michael Lesk 6. Fulfillment (2000s) lesk@bellcore.com 7. Retirement (2010) http://www.purl.net/NET/lesk ◼ What might go wrong? ◼ What might go right? ◼ References