Presentation on theme: "Metrics of monograph use in the Marston Science Library by Michelle Foss Leonard and Stephanie Haas Marston Science Library, University of Florida."— Presentation transcript:
Metrics of monograph use in the Marston Science Library by Michelle Foss Leonard and Stephanie Haas Marston Science Library, University of Florida
The current study provides an initial assessment of use data associated with the monograph collection at the Marston Science Library (MSL), University of Florida. These sciences covered in Marston fall within the major Library of Congress Classification schedules of Q, S, and T.
Circulation Circulated monographs dated from 1817 to 2009, approximately 192 years. When all user populations are totaled, 10,300 items in the Q class circulated, 1,300 in the S class circulated, and 4,000 items in the T class circulated.
Circulation by User Group for subclasses of Q (Science)
Circulation by User Group for subclasses of S (Agriculture)
Circulation by User Group for subclasses of T (Technology)
Findings from circulation 1.Graduate student borrowing far exceeds borrowing of either faculty or undergraduates, except in fisheries, zoology, and chemical engineering. 2.Borrowing average is less than 1 book per user per year. 3.LC subclasses with the highest circulation activity were identified.
Visualizing circulation metrics using TagCrowd, [http://tagcrowd.com]TagCrowd Steps in process: 1.Excel spreadsheets containing circulation data by LC class were sorted by Patron status and call numbers. Example: Plant Culture (SB) monographs borrowed by graduate students (n=311) SB123.C graduate Principles and procedures of plant breeding : biotechnological and conventional approaches / G.S. Ch Boca Raton, Fla. : CRC Press, c SB123.D graduate Genetic diversity of cultivated tropical plants / scientific editors, Perla Hamon... [et al.]. Enfield, NH : Science Publishers ; France : CIRAD, c SB123.E graduate Quantitative genetics and breeding methods : the way ahead : proceedings of the eleventh Meeting of Paris : Institut national de la recherche agronomique, c
2. Call numbers for circulated items were converted into text files and then parsed to top level subclass SB106 SB107 SB108 SB110 SB112 SB117 SB106.E25 S SB106.I47 D SB107.5.A5 SB108.A35 P SB110.A37 SB112.5.A SB112.5.H SB112.5.N SB112.5.O SB112.5.O SB112.5.O SB112.5.U SB117.K
The text file of subclasses was uploaded into TagCrowd and filters chosen.http://tagcrowd.com
LC subclass analysis using TagCrowd 1.The TagCrowd is extremely effective in helping to analyze data through visually clustering. 2.Finer granularity can be obtained by extending the call number extensions; however, decimal points must be converted to other characters. Example QA274.2 must be converted to QA274d2, where d=decimal
Subject headings vs LC call numbers QA274.23QA [B L D C] Stochastic differential equations. (61) [L D S] Stochastic differential equations--Congresses. (9) [L D S] Stochastic differential equations--Numerical solutions. (6) [L D S] Langevin equations. (3) [L D S] Stochastic differential equations--Numerical solutions-- Data processing. (2) [L D S] Stochastic difference equations. (1) [L D S]BLDCLDSLDSLDSLDSLDSLDS Source: Classification Web by Library of Congress (online subscription)
Science Monographs Purchased $127,141
Purchased monograph circulation
Print vs e-use for titles [40 titles circulated 43 times; online usage was 431, or a 100% increase. ]
Study conclusions concerning monographic use Monographic use by patron status has now been verified with graduate students accounting for 58% of the circulations. LC classes of greatest interest have been identified: QA, QH, QC, QD, TK, TA, TP, S, SB Current purchasing decisions accurately reflect usage 41 print titles were also available in electronic copy and online usage was 100% greater. This finding has major implications for future collection development decisions.
Theoretically, library functions supported by computers and databases should be quantifiable; however, meaningful data sets require multiple extraction runs, data striping, and recombination. Extracted data that can assist in collection development strategies is limited to LC classes and/or subject headings. Specificity of LC class appears stronger than subject headings, but future text analysis programs may provide even more accurate subject extraction. E-book use data is non-standard, frequently not available, and current metadata is incomplete. Libraries need to require that e-book services provide usable title based metrics. Study conclusions concerning data mining