1. Next-Generation Search Engines -Perspective and challenges
Han Liu
Department of Computer Science
University of Illinois at Urbana-Champaign
April 21th. 2005

2. Ultimate Goal of Search Engines
A “Perfect” Search Engine
- Act exactly the same as a “knowledgeable” human expert
- Use the whole Internet as his memory
- Tell us the most suitable thing we want immediately
- Evolve simultaneously with Internet
Google vs. “Perfect” search Engine ?
- Image, audio, videos could not be retrieved well
- Junk information results from keyword matching
- Human-computer communication is efficient enough
Han Liu

3. Possible Solutions Natural Language Processing for HCI (short term)
- Real-time speech recognition
- Fuzzy semantic understanding
- Real-time response to user’s voice instructions
(I will fund this project, it’s more practical!)
Large-Scale Knowledge Base (long term goal)
- Current IR relies too much mathematical models
- Traditional AI may be still useful
Han Liu