Usage of grey literature in open archives
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1GL11 – December 14-15, 2009
Usage of grey literature in open archives
J. Schöpfel (University of Lille 3)
C. Boukacem-Zeghmouri (University of Lille 3)
H. Prost (INIST-CNRS)
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2GL11 – December 14-15, 2009
Size of repositories and total number of items
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Total number of items (cumulated)
Number of items in archives (ranking)
2008
2009
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3GL11 – December 14-15, 2009
Content evolution
1.87m items
= x2,7 since 2008
Representativity 10% (?)
Part of GL unchanged (17%)
But: +200,000 new grey items
Other*, ndArticles
Grey literatureDatasets
* = heritage, books…
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4GL11 – December 14-15, 2009
GL document types
Conferences
Reports
ETD
Working papers
Other
Courseware
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5GL11 – December 14-15, 2009
Repository type and presence of grey literature
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Institutional Doc-type Subject-based Other
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no
= 74% of all repositories contain GL
(and 93% of IR)
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6GL11 – December 14-15, 2009
Size of repository and number of grey items
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HAL SHS
PERSEE
IRD
INRA
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2008
2009HAL
INRA
PERSEEHAL SHS
IRD
TEL
I-Revues
HAL-INRIA
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7GL11 – December 14-15, 2009
Quality improvement
0%
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70%M
etad
ata
Val
idat
ion
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2009
Slightly more archives with specific metadata for grey items
Significant more archives with some kind of content validation and/or quality control
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8GL11 – December 14-15, 2009
Access to full text…
53%38%
9%
All items Restricted NA
(+ 5%)
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9GL11 – December 14-15, 2009
… but items without fulltext
Half of all open archives contain bibliographic records that don’t link to the document
Part of these records varies from 5 to 90%
Overall part of records without fulltext: 16%
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10GL11 – December 14-15, 2009
Usage statistics of GL
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120Average downloads per document type
Importance of grey literature: 2,2 (ETD)
University of Toulouse (OATAO)
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11GL11 – December 14-15, 2009
Usage statistics of GL
Average downloads per document type
Importance of grey literature:
4,7 - 7 (ETD)
1,4 - 3 (reports)
1,3 (conferences)
IFREMER (Archimer)
010203040506070
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12GL11 – December 14-15, 2009
Usage statistics of GL
Importance of grey literature: 1,7 - 5 (working papers)
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Average downloads per document type
Working papers
Articles
RePEc
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13GL11 – December 14-15, 2009
Problems
Cumulative statistics
No history
No details (formats, …)
No specific information on GL
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Without metadata, no statistics
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14GL11 – December 14-15, 2009
Metadata
On the one hand:
- Difficulties in identifying the types of documents.- Only « published or unpublished » document.
- No count of results.
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15GL11 – December 14-15, 2009
Metadata
On the other hand:
- Query by: author’s affiliation scientific department research theme document type keywords
- Choice with date- Choice with full text or not- Ranking of results
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16GL11 – December 14-15, 2009
(Figures in parentheses refer to the 7-day period ending 16-Nov-2009 00:00).
Successful requests: 132,810 (6,975) Average successful requests per day: 914 (996) Successful requests for pages: 132,810 (6,975) Average successful requests for pages per day: 914 (996) Failed requests: 84 (0) Distinct files requested: 530 (526) Distinct hosts served: 40,015 (3,609) Corrupt logfile lines: 55 Unwanted logfile entries: 2,743,109 Data transferred: 172.81 gigabytes (9.18 gigabytes) Average data transferred per day: 1.19 gigabytes (1.31 gigabytes)
INP Toulouse
Log analysis (1)
Diversity of tools (Google Analytics / Sitemap, Webalizer Xtended, AWStats, HAL, PhpMyVisite, Analog …)
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17GL11 – December 14-15, 2009
Log analysis (2)
reqs: %bytes: last time: file
•2044: 0.40%: 29/Nov/09 22:53: García Martinez (2009) Development and validation of the Euler-Lagrange formulation on a parallel a... •1283: 0.26%: 29/Nov/09 22:53: Delgado Zambrano (2009) Bioréacteur à membrane externe pour le traitement d'effluents contenant de... •1115: 0.30%: 29/Nov/09 22:53: Sepret (2009) Application de la PIV sur traceurs fluorescents à l'étude de l'entraîneme... •1063: 0.21%: 29/Nov/09 22:53: Nerisson (2009) Modélisation du transfert des aérosols dans un local ventilé. •1057: 0.95%: 29/Nov/09 17:34: Delabrouille (2004) Caractérisation par MET de fissures de corrosion sous contrainte d'alliages... •1029: 0.14%: 29/Nov/09 22:53: Rajsiri (2009) Knowledge-based system for collaborative process specification. •1014: 0.79%: 29/Nov/09 22:10: Delay (2005) Analyse des écoulements transitoires dans les systèmes d'injection directe... •984: 0.88%: 29/Nov/09 22:55: Geneau (2006) Procédé d'élaboration d'agromatériau composite naturel par extrusion biv...
INP Toulouse
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18GL11 – December 14-15, 2009
Log analysis (3)
Pastel ParisTech
Access to website: search engins, geographical origin, strategies, etc.
On site behaviour: bouncing, downloading, duration, domains, etc.
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19GL11 – December 14-15, 2009
Towards standardization:PIRUS (JISC)
Publisher and Institutional Repository Usage Statistics
For authors and institutions
Article level (DOI)
COUNTER compliant
XML prototype
Article Report 1: <title>Number of Successful Full-Text Article Requests by Month and DOI</title>
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20GL11 – December 14-15, 2009
Towards standardization: PIRUS 2 (JISC)
COUNTER standards & PIRUS results
Different « Article Reports » (core set of standard usage statistics reports)
Open Source software for production and sharing of usage statistics on article (item) level for OA
Cost analysis
Final report in December 2010
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21GL11 – December 14-15, 2009
Towards standardization: OA-Statistik (DINI)
For authors (usage follow-up), readers-scientists (relevance, alert), institutions (impact)
Article level (= document)
Tools for transfer/sharing (network)
Added-value services
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22GL11 – December 14-15, 2009
Towards standardization: other websites, projects
LogEc http://logec.repec.org/ Usage statistics of the RePEc repository
IFABC http://www.ifabc.org/ Definition of usage metrics (user, visit…)
SURF http://www.surffoundation.nl/nl/projecten/Pages/SURE.aspx Aggregation of log files
JISC Usage statistics review http://ie-repository.jisc.ac.uk/250/ Proposal of standard
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23GL11 – December 14-15, 2009
Recommendations (1)
Recipient: authors, users, institutions
COUNTER principle: different levels, with a basic minimum level (AR1)
Selection of minimum elements for a basic log analysis(who, what, request type, when, identifier)
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24GL11 – December 14-15, 2009
Recommendations (2)
Definition of elements and terminology (access, downloading, visit, request, hit…)
Periodicity (monthly) and delay (30 days)
Distinction full text / records
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25GL11 – December 14-15, 2009
Recommendations (3)
Added-value services* :Modular statistics (collections, document types, time period
etc.)
Summary tables
Assistance-help / FAQ
Link with other tools measuring the impact of deposited items (citations, tagging etc.)
(…)
* see PLoS http://article-level-metrics.plos.org/
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26GL11 – December 14-15, 2009
Forthcoming
2010 IRIS case study (Lille 1)
2010 Final report of DUAO-F project
2010 Study on search engines
??? Partnership with JISC/COUNTER and DINI
??? Project with CCSD and/or COUPERIN
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27GL11 – December 14-15, 2009
Thank you!
Joachim SchöpfelUniversity Charles de Gaulle Lille 3
[email protected]++ (0) 33 688 35 01 47
Chérifa Boukacem-ZeghmouriUniversity Charles de Gaulle Lille 3
[email protected]++ (0) 33 620 62 18 12
Hélène ProstINIST-CNRS
[email protected] ++33 (0) 383 50 47 12