the harmony of peers1 the harmony of peers - mining peer selection patterns to improve consortial...

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The Harmony of Peers 1 The Harmony of Peers - Mining Peer Selection Patterns to Improve Consortial Engineering Collections Orion Pozo – NCSU Libraries [email protected] Engineering Libraries Division Poster Session ASEE Annual Meeting, Portland OR Monday, June 13, 2005

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Page 1: The Harmony of Peers1 The Harmony of Peers - Mining Peer Selection Patterns to Improve Consortial Engineering Collections Orion Pozo – NCSU Libraries Orion_Pozo@ncsu.edu

The Harmony of Peers 1

The Harmony of Peers - Mining Peer Selection Patterns to Improve Consortial Engineering Collections

Orion Pozo – NCSU [email protected]

Engineering Libraries Division Poster Session ASEE Annual Meeting, Portland OR

Monday, June 13, 2005

Page 2: The Harmony of Peers1 The Harmony of Peers - Mining Peer Selection Patterns to Improve Consortial Engineering Collections Orion Pozo – NCSU Libraries Orion_Pozo@ncsu.edu

The Harmony of Peers 2

Summary

Triangle 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

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The Harmony of Peers 3

The Triangle Research Libraries Network:

North Carolina State UniversityUniversity of North Carolina, Chapel HillDuke UniversityNorth Carolina Central University

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The Harmony of Peers 4

Peer Institutions*

Hong Kong Polytechnic Univ RMIT Monash University Univ of Cincinnati Iowa State Univ MIT Penn State Univ Purdue Univ Massey Univ Chinese Univ of Hong Kong Cornell Univ Stanford Univ

Ohio State Univ UC San Diego Hong Kong Univ of Sci & Tech Carnegie Mellon Univ Univ of Technology, Sydney Clemson Univ Cal State Poly Univ, Pomona Rensselaer Polytech Inst Univ of Wisconsin, Madison Univ of Calgary Duke Univ

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

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The Harmony of Peers 5

Goals -

-Increase quality of titles available to the consortium -Reduce duplication of titles in the consortium

Methodology -– For 2004-2005 use Consortial Reports to reduce

duplication

– At the same time use Peer Reports to identify quality titles not in consortium

– Compare the selection of duplicates and unique titles in the Consortium from 2003-2004 and 2004-2005

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The Harmony of Peers 6

Project Outline:

At one TRLN institution

Use Consortial Reports to reduce duplication & identify titles not held

Use 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)

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Details

Limited to:– Books ordered from one vendor– Subjects:

• Computer Science (QA75-77)

• Engineering & Technology (T-TX)

– Only two years of data available from vendor– One library (other consortial libraries

purchased as always)

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The Harmony of Peers 8

YBP Consortial Report Form

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The Harmony of Peers 9

Sample YBP Record GobiTween shows slips were sent to 4 Consortium Libraries PeerGroup shows 10 Peer Libraries Selected this title

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The Harmony of Peers 10

Peer Activity Data for Single Record Lists 10 Libraries that Selected this Book

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The Harmony of Peers 11

Number of Titles Purchased From 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

Number of books purchased by libraries in TRLN ConsortiumYEAR 2003-2004 2004-2005

Subject Group QA75-77 T Combined QA75-77 T Combined

TRLN LIBRARYNORTH CAROLINA STATE/RALEIGH 802 2372 3174 653 1790 2443UNIV OF NC/CHAPEL HILL 400 778 1178 327 654 981DUKE UNIVERSITY 46 833 879 28 567 595UNIV OF NC/CHAPEL HILL/UL 14 19 33 13 15 28DUKE UNIV SCHOOL OF LAW 2 14 16 0 17 17UNIV OF NC/CHAPEL HILL HEALTH 1 40 41 0 38 38UNIV OF NC/CHAPEL HILL-LAW 1 1 2 0 3 3FUQUA SCHOOL OF BUSINESS/LIB 0 17 17 0 10 10UNIV OF NC/CHAPEL HILL/NCC 0 11 11 0 5 5UNC-CHAPEL HILL/STONE 0 3 3 0 2 2NORTH CAROLINA CENTRAL UNIV 0 3 3 0 0 0

Total Consortium Purchases 1266 4091 5357 1021 3101 4122Difference between 2004 & 2005 -245 -990 -1235 -23%

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Number of Libraries Selecting Titles

•While 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

Number of TRLN Libraries Selecting Titles

YEAR 2003-2004 2004-2005Percent Change

Subject Group QA75-77 T CombinedPercent of Total QA75-77 T Combined

Percent of Total

2003-04 to 2004-05

No. of Libraries

1 905 1831 2736 51.1% 860 1564 2424 58.8% 7.8%2 137 763 900 33.6% 52 587 639 31.0% -2.6%3 26 220 246 13.8% 19 105 124 9.0% -4.7%4 1 19 20 1.5% 0 12 12 1.2% -0.3%5 1 0 1 0.1% 0 0 0 0.0% -0.1%

Total No. of Titles 1070 2833 3903 931 2268 3199 -18.0%Total No. of Items (# Titles X # of Libraries) 1266 4093 5359 1021 3101 4122 -23.1%

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The Harmony of Peers 13

Conclusions

Consortial Reports can be used effectively to reduce duplication in book selection within a consortium

Peer Selection Data can be effectively used to find high quality materials that are not owned by consortium members

Consortial and Peer data can be used harmoniously to build richer collections

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The Harmony of Peers 14

Recommendations for future studies

Improvements in YBP’s Gobi2 database to allow sorting by and exporting the number of Peers selecting items would help data mining

Cooperative use of this methodology by multiple members of a consortium should enhance desirable outcomes

Replicating this study with multiple selectors in larger consortia