Orion Pozo – NCSU Libraries Orion_Pozo@ncsu Engineering Libraries Division Poster Session

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  • The Harmony of Peers - Mining Peer Selection Patterns to Improve Consortial Engineering CollectionsOrion Pozo NCSU LibrariesOrion_Pozo@ncsu.eduEngineering Libraries Division Poster Session ASEE Annual Meeting, Portland ORMonday, June 13, 2005

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    The Harmony of Peers

  • SummaryTriangle Research Libraries Network (TRLN) is a consortium of libraries at four North Carolina universities TRLN shares a common book vendor, YBP Library Services YBP provides Consortial & Peer ReportsGoal: Use Consortium and Peer Data to Increase quality and quantity of titles available to the consortium

    The Harmony of Peers

  • The Triangle Research Libraries Network:North Carolina State UniversityUniversity of North Carolina, Chapel HillDuke UniversityNorth Carolina Central University

    The Harmony of Peers

  • Peer Institutions*Hong Kong Polytechnic UnivRMITMonash UniversityUniv of CincinnatiIowa State UnivMITPenn State UnivPurdue UnivMassey UnivChinese Univ of Hong KongCornell UnivStanford Univ

    Ohio State UnivUC San DiegoHong Kong Univ of Sci & TechCarnegie Mellon UnivUniv of Technology, SydneyClemson UnivCal State Poly Univ, PomonaRensselaer Polytech InstUniv of Wisconsin, MadisonUniv of CalgaryDuke Univ

    * Peers were chosen based on the number of book selections in YBPs Gobi2 database in the subjects of technology and computer science

    The Harmony of Peers

  • Goals - -Increase quality of titles available to the consortium -Reduce duplication of titles in the consortiumMethodology -For 2004-2005 use Consortial Reports to reduce duplicationAt the same time use Peer Reports to identify quality titles not in consortiumCompare the selection of duplicates and unique titles in the Consortium from 2003-2004 and 2004-2005

    The Harmony of Peers

  • Project Outline:

    At one TRLN institutionUse Consortial Reports to reduce duplication & identify titles not heldUse Peer Reports to identify quality books not heldCompare Consortial reports with Peer reports to purchase quality items not in the consortiumCompare duplication and number of titles for 2003-2004 (before Peer Reports) and 2004-2005 (after Peer Reports)

    The Harmony of Peers

  • DetailsLimited to:Books ordered from one vendorSubjects:Computer Science (QA75-77)Engineering & Technology (T-TX)Only two years of data available from vendorOne library (other consortial libraries purchased as always)

    The Harmony of Peers

  • YBP Consortial Report Form

    The Harmony of Peers

  • Sample YBP RecordGobiTween shows slips were sent to 4 Consortium LibrariesPeerGroup shows 10 Peer Libraries Selected this title

    The Harmony of Peers

  • Peer Activity Data for Single RecordLists 10 Libraries that Selected this Book

    The Harmony of Peers

  • Number of Titles PurchasedFrom 2003-2004 to 2004-2005 TRLN Consortium purchasing of books from this vendor in these subject areas decreased 23%Number of books purchased decreased from 5,357 to 4,122

    The Harmony of Peers

    Libraries

    Number of books purchased by libraries in TRLN Consortium

    YEAR2003-20042004-2005

    Subject GroupQA75-77TCombinedQA75-77TCombined

    TRLN LIBRARY

    NORTH CAROLINA STATE/RALEIGH8022372317465317902443

    UNIV OF NC/CHAPEL HILL4007781178327654981

    DUKE UNIVERSITY4683387928567595

    UNIV OF NC/CHAPEL HILL/UL141933131528

    DUKE UNIV SCHOOL OF LAW2141601717

    UNIV OF NC/CHAPEL HILL HEALTH1404103838

    UNIV OF NC/CHAPEL HILL-LAW112033

    FUQUA SCHOOL OF BUSINESS/LIB0171701010

    UNIV OF NC/CHAPEL HILL/NCC01111055

    UNC-CHAPEL HILL/STONE033022

    NORTH CAROLINA CENTRAL UNIV033000

    Total Consortium Purchases126640915357102131014122

    Difference between 2004 & 2005-245-990-1235-23%

    Titles

    Number of TRLN Libraries Selecting Titles

    YEAR2003-20042004-2005Percent Change

    Subject GroupQA75-77TCombinedPercent of TotalQA75-77TCombinedPercent of Total2003-04 to 2004-05

    No. of Libraries

    19051831273651.1%8601564242458.8%7.8%

    213776390033.6%5258763931.0%-2.6%

    32622024613.8%191051249.0%-4.7%

    4119201.5%012121.2%-0.3%

    51010.1%0000.0%-0.1%

    Total No. of Titles10702833390393122683199-18.0%

    Total No. of Items (# Titles X # of Libraries)126640935359102131014122-23.1%

    Sheet3

  • Number of Libraries Selecting TitlesWhile the number of books went down 23%, the number of titles was down only 18%Number of titles held by a single library in the Consortium went up 7.8%Almost 200 more titles were purchased using this methodology than would have been bought before it was available

    The Harmony of Peers

    Libraries

    Number of books purchased by libraries in TRLN Consortium

    YEAR2003-20042004-2005

    Subject GroupQA75-77TCombinedQA75-77TCombined

    TRLN LIBRARY

    NORTH CAROLINA STATE/RALEIGH8022372317465317902443

    UNIV OF NC/CHAPEL HILL4007781178327654981

    DUKE UNIVERSITY4683387928567595

    UNIV OF NC/CHAPEL HILL/UL141933131528

    DUKE UNIV SCHOOL OF LAW2141601717

    UNIV OF NC/CHAPEL HILL HEALTH1404103838

    UNIV OF NC/CHAPEL HILL-LAW112033

    FUQUA SCHOOL OF BUSINESS/LIB0171701010

    UNIV OF NC/CHAPEL HILL/NCC01111055

    UNC-CHAPEL HILL/STONE033022

    NORTH CAROLINA CENTRAL UNIV033000

    Total Consortium Purchases126640915357102131014122

    Difference between 2004 & 2005-245-990-1235-23%

    Titles

    Number of TRLN Libraries Selecting Titles

    YEAR2003-20042004-2005Percent Change

    Subject GroupQA75-77TCombinedPercent of TotalQA75-77TCombinedPercent of Total2003-04 to 2004-05

    No. of Libraries

    19051831273651.1%8601564242458.8%7.8%

    213776390033.6%5258763931.0%-2.6%

    32622024613.8%191051249.0%-4.7%

    4119201.5%012121.2%-0.3%

    51010.1%0000.0%-0.1%

    Total No. of Titles10702833390393122683199-18.0%

    Total No. of Items (# Titles X # of Libraries)126640935359102131014122-23.1%

    Sheet3

  • ConclusionsConsortial Reports can be used effectively to reduce duplication in book selection within a consortiumPeer Selection Data can be effectively used to find high quality materials that are not owned by consortium membersConsortial and Peer data can be used harmoniously to build richer collections

    The Harmony of Peers

  • Recommendations for future studiesImprovements in YBPs Gobi2 database to allow sorting by and exporting the number of Peers selecting items would help data miningCooperative use of this methodology by multiple members of a consortium should enhance desirable outcomesReplicating this study with multiple selectors in larger consortia

    The Harmony of Peers