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2/17/2009 Lecture Notes |
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Kick-off: |
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Architecture |
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Learning Objective: |
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Understand the evolution of queries |
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Go over schedule |
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Assignment 5 and 6 delayed so we can iron out the details of the assignment |
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Cards |
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We'll help with assignment 06 config file |
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Hadoop is not tuned for Windows |
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Going to google? |
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So far I think so. Optional if you have a conflict. |
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Does google use hueristics? |
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Yes, mixed with more principled analysis |
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How do you keep rank data in a postings list? |
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What is the sort criteria for docIDs in the posting list? |
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Who uses mapReduce right now? |
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Hard to search for |
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unpopular products - reviews |
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song without known title or lyrics |
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myself |
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a definition of a foreign word you can't spell |
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anything that requires many words to describe |
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other people named "Elvis Presley" |
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places to buy panda meat |
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people who aren't famous - bands that aren't famous |
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live athletic injury updates |
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non-textual queries - smells |
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laundromats and 24-hour restaurants |
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very specific /iconic images |
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free sheet music |
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Chuck Norris - he searches for you. |
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Cards |
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Name |
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Something that is hard to search for |
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Video break |