1 Next-Level Discovery Panel Marti Hearst UC Berkeley

2 Discovery

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5 Next-Level Search

6 text Today: Navigating Future: Saying what you want

7 Massive collections of implicit user behavior Better handling of long (maybe natural language) queries A Convergence of Two Technology Trends

8 Ryen White et al., SIGIR 2007 Example: Using Massive Implicit User Behavior

9 eBay Express Example: Mapping NL into Pre-defined concepts

10 Massive collections of implicit user behavior Automatic mapping into well-crafted answer types for common but complex information needs Better handling of long (maybe natural language) queries

11 Which is the last day of class in S’08? How to I apply for the U’s mortgage program? Examples (my intranet) What are the prereqs for Bio120? How do I hire a programmer?

12 Summary Next-level search will make use of massive collections of user behavior to help determine and respond to common information needs. Tech trends: –convert metadata to patterns –Use advancing NLP technology