Results are always correct imprecise need to measure

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(results are always “correct”) Imprecise (need to measure effectiveness) Information Retrieval versus Databases 13 14
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IR is at the core of CS IR is incredibly important to society (and you?) The topic is intellectually rich It’s not that much work Looks good on your resume Why take this course? 15 Why take this course? Shift from computation to information True in corporate computing for years Web, P2P made this clear for personal computing Increasingly true of scientific computing Need for IR technology has exploded in the last few years Web: Search engines, e-commerce, blogs, wikis, other “web services” Corporate: enterprise knowledge management, search, etc. Scientific: Digital libraries, genomics, satellite imagery, physical sensors, simulation data Personal: Music, photo, & video libraries. Email archives. File contents (“desktop search”) IR is at the core of CS 16
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Why take this course? “Knowledge is Power” -- Sir Francis Bacon “With great power comes great responsibility” -- Uncle Ben IR is incredibly important to society Policy-makers should understand technological possibilities.
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