20061108-asist-untappeddata

20061108-asist-untappeddata - Capturing Untapped...

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Capturing Untapped Descriptive Data:   Creating  Value for Librarians and Users Lynn Silipigni Connaway OCLC Research ASIST 2006 Conference November 9, 2006 
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WorldCat: July 2006 Total holdings: 1,071,507,045 Manifestations (records): 67,282,165 Works: 53,472,668 Digital Items: 1,571,803 Institutions: 26,236 Physical Items*: ~1.6 billion *Estimated
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Origin of materials represented in WorldCat   US 34% UK 9% Canada 3% Rest of World 40% Unknown 14%
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Some aspects of “Global WorldCat” … Content Languages: 476 43% of WC non-English Top 5 non-English: German: 4.5 million French: 4.2 million Spanish: 2.9 million Dutch: 2.1 million Chinese: 1.6 million Non-English Metadata Language: 9.3 million (20 languages) Top 5: Dutch: 4.1 million     Japanese:     0.7 million French: 1.4 million     Finnish:        0.7 million German: 1.0 million Materials w/non-US origins: 35.3 million (52%) Top 5: UK: 6.1 million Germany: 4.0 million France: 2.9 million Netherlands: 2.2 million Canada: 2.1 million
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OCLC WorldCat TM : Decision-making Resource Collection management Cooperative collection development Comparative collection analysis Collection assessment Mass digitization Off-site storage Preservation Services Virtual reference Recommender services Systems Precision
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OCLC WorldCat TM : Data Mining Research Projects Audience Level Publisher Name Server WorldMap
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Audience Level: Rationale and Objectives Implies: we can infer materials’ audience level from  holdings patterns, which in turn can support: • Collection management • Readers’ advisory services • Reference services • Information retrieval    Holdings represent selection decisions by 
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20061108-asist-untappeddata - Capturing Untapped...

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