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A statistical miscellany of a special library

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A compilation of various statistical presentations from a special library

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A statistical miscellany of a special library

  1. 1. Communication with customers: A statistical M S Sridhar Head, Library & Documentation ISRO Satellite Centre Bangalore 560 017 E-mail: sridhar@isac.gov.in of a special library
  2. 2. 19887 4477 4047 1328 897 726 557 447 348 286 290 1524 0 5000 10 0 0 0 15 0 0 0 20000 25000 0 1 2 3 4 5 6 7 8 9 10 >10 No. of times borrowed No. of books No. times borrwed in 3.5 yrs No. of books % Cumulative % 0 19887 57.12 57.12 1 4477 12.56 69.68 2 4047 11.93 81.61 3 1328 3.81 85.42 4 897 2.57 87.99 5 726 2.02 90.1 6 557 1.58 91.68 7 447 1.28 92.96 8 348 1 93.96 9 286 0.92 94.78 10 290 0.84 95.62 >10 1524 4.38 100 Statistical miscellany – M S Sridhar, Head, LDD Frequency of borrowed use of books
  3. 3. Statistical miscellany - 1 M S Sridhar, Head, LDD (April 16, ’02) Use of library books RANK GRP MEM BKS AVERAGE /PROJ BERS LENT 1 TPD 19 511 26.89 2 MDG 118 2810 23.81 3 CIG 49 1156 23.59 4 PPEG 27 604 22.37 5 SMG 50 1098 21.96 6 CSG 115 2380 20.70 7 STG 73 1471 20.15 8 CMG 88 1683 19.13 9 TSG 103 1913 18.57 10 SRG 137 2528 18.45 11 AITG 188 3288 17.49 12 DSG 95 1612 16.97 13 ICG 92 1486 16.15 14 PSG 113 1719 15.21 15 IRS 42 622 14.81 16 INSAT 37 521 14.08 17 FAC 419 3042 7.26 18 DDs,... 18 85 4.72 19 LEOS 110 394 3.58 20 ADMN 296 947 3.20 Sub-total 2189 29870 13.65 OTHERS 41 345 8.41 LPSC 144 252 1.75 TOTAL 2374 30467 12.83 0 500 1000 1500 2000 2500 3000 3500 TPD MDG CIG PPEG SMG CSG STG CMG TSG SRG AITG DSG ICG PSG IRS INSAT FACILITY DDS,ETC. LEOS ADMN NO. OF BOOKS BORROWED PER YEAR
  4. 4. Statistical miscellany –2 M S Sridhar, Head, LDD(May 1, 02) Suggestions for new books GP/PR2000-101-202-03 AITG48223 CIG37491 CMG24173 CSG100595 DSG1150 ICG1260 MDG1260 PSG660 PPEG19153 SMG440 SRG115550 STG36314 TSG35173 TPD39406 FACILITY20101 INSAT020 IRS800 DDs, etc.92010 LEOS010 ADMN, etc.0220 TOTAL53538739 AITGCIGCMGCSGDSGICGMDGPSGPPEGSMGSRGSTGTSGTPDFACILITYINSATIRSDDs, etc. LEOSADMN, etc. 0204060801001201402000-12001-22002-3(1stQ) NO. OF BOOKS SUGGESTED
  5. 5. Statistical miscellany –3M S Sridhar, Head, LDDISAC authors well cited internationally! No. of times cited No. of articles Total citations 89 1 89 58 1 58 38 1 38 36 1 36 20 1 20 18 1 18 16 2 32 15 2 30 12 1 12 10 3 30 9 2 18 8 3 24 7 3 21 6 5 30 5 9 45 4 10 40 3 11 33 2 15 30 1 40 40 Total 112 644 •SCI* covered 269 journal articles of ISAC authors •112 ISAC papers have been cited 644 times in international journals (Average or Impact Factor: 2.39) --------------------------------------------------- * Science Citation Index of Institute for Scientific Information, USANote: SCI does not cover all journals Authors/ co-authors of ISAC papers having 15 or more citations : KASTURIRANGAN K; MARAR TMK; SEETHA S; ASHOKA BN; JAIN AK; SHARMA AK NAGENDRA CL; THUTUPALLI GKM; REDDY MR
  6. 6. Statistical miscellany –4 M S Sridhar, Head, LDDInternal reportsproduced & archivedYEAR-WISE PRODUCTION TOTAL: PRODUCED: 2172 ARCHIVED : 1933 20523623827132539444063010020030040050019951996199719981999200020012002(MAR) 2651168613737214136237934223815873997392172881249814540260137358637226116674011578217AITGCIGCMGCSGDSGICGMDGPSGPPEGSMGSRGSTGTSGTPDFACILITYINSATIRSLEOSOTHERS0100200300400PRODUCEDARCHIVED
  7. 7. Statistical miscellany –5 M S Sridhar, Head, LDD Holdings of ISRO libraries 37550 18000 12000 32750 26250 57000 129000 14000 3000 47000 16100 122000 21750 7150 15000 12150 37000 2000 0 20000 40000 60000 80000 100000 120000 140000 ISAC ISRO HQ NRSA SAC SHAR VSSC BOOKS REPORTS BOUND JLS CENTRE BOOKS REPORTS BD JLS ISAC 37550 129000 21750 ISRO HQ 18000 14000 2000 NRSA 12000 3000 7150 SAC 32750 47000 15000 SHAR 26250 16100 12150 VSSC 57000 122000 37000 TOTAL 183550 331100 95050
  8. 8. 0 2000 4000 6000 8000 10000 12000 Compute r Science Te le communication Ele ctronics Management Mathematics Ele ctrical engine e ring Medical Science s Mate rial s te sting, e tc., Physics and Me chanics Air and space transport engg. Control the ory Astronomy Manufacture s, industrie s, e tc., Chemi stry, Ge ology, Biology, e tc. USE/ YR. COLLECT ION RANK SUBJECT USE/ COLLEC RATIO OF YEAR TION USE TO COLN 1 Computer Science 11141 7314 1.52 2 Telecommunication 2372 2144 1.11 3 Electronics 3463 3314 1.04 4 Management 1133 1102 1.03 5 Mathematics 1515 1545 0.98 6 Electrical engineering 1917 2233 0.86 7 Medical Sciences 359 504 0.71 8 Materials testing, etc., 682 1048 0.65 9 Physics and Mechanics 1999 3147 0.64 10 Air and space transport engg. 1519 2774 0.55 11 Control theory 462 1038 0.45 12 Astronomy 657 2020 0.33 13 Manufactures, industries, etc., 251 854 0.29 14 Chemistry, Geology, Biology,… 228 915 0.25 Statistical miscellany –6 M S Sridhar, Head, LDD (July 1, 2002) Subject-wise collection & lent-out use of books
  9. 9. Statisticalmiscellany –7 M S Sridhar, Head, LDD(July 16, 2002) Growth of ISAC Libraryyearmembers documentscurrent jlsusearea1975285 2300 72 800 8001987 1800114000 582 142000 80002000 2272 200000 493 240000 18000285180022722311402000725824938014202400808001800membersdocs in '00current jlsuse in'00area in '0 sq. ft. 050010001500200025003000YR. 1975YR. 1987YR. 2000
  10. 10. Statistical miscellany – 8 M S Sridhar, Head, LDD (August 1, 2002) Journals & reports are less used than before (1982) ST ANDAR DS 0. 6% NON-BOOK MAT ERI A LS 1 . 6% REPORT S 1 . 2% JOURNAL S 1 2. 3% BOOKS 84. 3% % of total borrowing increase/ NOW (2002) THEN (1982) decrease BOOKS 84.3 80.0 + 4.3 REPORTS 1.2 5.0 - 3.8 JOURNALS 12.3 14.8 - 2.5 STANDARDS 0.6 0.2 + 0.4 NON-BOOK 1.6 0.0 + 1.6 MATERIALS Percentage of total lent-out use 14.8 0.2 0 5.0 80.0 84.3 1.2 12.3 0.6 1.6 0 10 20 30 40 50 60 70 80 90 BOOKS REPORTS JOURNALS STANDARDS NON-BOOK M ATERIALS THEN (1982) NOW (2002) 2002
  11. 11. Statistical miscellany – 9 M S Sridhar, Head, LDD (August 16, 2002) Reduction in journals subscribed and reports added over the years 0 200 400 600 800 1000 1200 1980 1985 1990 1995 2000 2002 Reports (annual intake) Journals (subscribed) Reports Journals Year (annual intake) (subscribed) 1980 1063 533 1985 936 519 1990 523 444 1995 288 416 2000 67 326 2002 29 300
  12. 12. Statistical miscellany - 10 M S Sridhar, Head, LDD (Sep. 1, ’02) Journals and reports are more used (and cited in JST) by ISAC authors than others 84.3% 1.2% 12.3% 2.2% % lent out 33.3% 25.7% 35.1% 5.9% % cited books reports j ournals others •In other words, journals & reports are less borrowed than books but more cited in JST (Journal of Spacecraft Technology) •E-version of JST accessible at http://www.j-gate.informindia.co.in Documents % Borrowed % Cited Books 84.3 33.3 Reports 1.2 25.7 Journals 12.3 35.1 Others 2.2 5.9 Total 100 100
  13. 13. Statistical miscellany-11 M S Sridhar, Head, LDD (Sep 16, ’02) Percentage of time spent on print medium remained same over the years - National Readership Survey TV 72.0% RADIO 11.0% INTERNET 1.0% PRINT 16.0% 2001 TV RADIO INTERNET PRINT 0 10 20 30 40 50 60 70 80 1995(%) 2001(%) Note: 2001 survey had 212,000 adult respondents; average urban Indian spends 2 hrs a day on media consumption 1995(%) 2001(%) TV 62 72 RADIO 22 11 INTERNET 0 1 PRINT 16 16
  14. 14. Statisticalmiscellany-12M S Sridhar, Head, LDD(Oct. 1, ’02) Subject-wise misplacement / loss of books(for a period of 3 years & 3 months) 752116149865441939834123416578213230100200300400500Computer Science Electronics & El EnggPhy & AstronomySpace Science Management Mech. & Civil Engg. Mathematics Medical Science Telecommunication Building ind., arts, etc. Other subjectsValuein '00(Rs.) No. RankSubjectNo.%Value(Rs.)% 1Computer Science 7541.43982472.12Electronics & El Engg.2111.633696.13Phy & Astronomy168.811632.14Space Science 147.734396.25Management 95.015862.96Mech. & Civil Engg.84.45431.07Mathematics 63.36711.28Medical Science 52.87661.49Telecommunication 42.21820.39ABuilding ind., arts, etc.42.213222.4Other subjects1910.523454.2Total 181100.055210100.0
  15. 15. Statistical miscellany –13 M S Sridhar, Head, LDD (Oct. 16, ’02) Web Characterisation & use surveys 1. the ‘invisible’ or ‘deep’ web is over 500 times larger than ‘surface’ web 2. 25000 'mega sites' represent 50% contents 3. mean size of a public site is > 130 pages 4. no engine is indexing > 16% 0f publicly accessible sites 5. over 8000 search engines; >800 m pages ; >8 m sites Effectiveness of sites clearly designed sites 2% brochure w are sites 40% no sites found 58% T ype o f sites Pr ivate 21% Pr ovisional 38% Publ ic 41% 38 7 8 10 3 0 1 0 2 0 3 0 4 0 e-mail general informatio n academic informatio n chat jo b related informatio n Internet use in India • ½ hr to 2 hrs per day (av: 86.1 min.) • 97% for e-mail purpose • top of mind recall : yahoo 22% hotmail 13% % of time spent
  16. 16. Statistical miscellany –14M S Sridhar, Head, LDD(Nov. 1, ’02} Test reports are maximum among types of internal reportsgenerated INTERNAL REPORTSSL. NO.TYPENO. A. CENTRE REPORTS1GR602TR6023ST83SUB TOTAL745B. PROJECT REPORTS4RR2695TE7726AR2547 PR326SUB TOTAL1621TOTAL2366Type of reports produced606028326977225432602004006008001000General rep. Technical repStandardsReview repTest repAnalysis repProject repInternal reports produced (30 Sep. '02) CENTRE 31% PROJECTS69%
  17. 17. Statistical miscellany –15M S Sridhar, Head, LDD ( Nov. 18, ’02) Online Public Access Catalogues (OPACs) of ISRO libraries put together have 7 lakh records CENTRE OPAC ISAC200000 ISRO HQ35000 NRSA25000 SAC145000 SHAR62000 VSSC230000 TOTAL 697000 OPACs of ISRO LibrariesISAC29% VSSC32% SHAR9% SAC21% NRSA4% ISRO HQ5%
  18. 18. Statistical miscellany – 16 M S Sridhar, Head, LDD (Dec. 1, ’02) Biggest Libraries of the World (Volumes in millions) 23 1 6 1 4. 5 1 4. 4 1 3 1 2. 9 1 1 . 8 1 1 . 3 1 0. 5 9. 5 3 0 5 1 0 1 5 20 25 Li br ar y of Congr ess Nat i onal Li br ar y of Chi na Nat i onal Li br ar y of Canada Deut sch bi bl i ot ek (Ger many) Br i t i sh Li br ar y Har var d Uni ver si t y Li br ar y Russi an St at e Li br ar y Nat i onal Di et Li br ar y ( Japan) New Yor k Publ i c Li br ar y Yal e Uni vi ver si t y Li br ar y Nat i onal l i br ar y of I ndi a RANK NAME PLACE VOLS IN M 1 Llibrary of congress Wash, DC 23 2 N.L. of China Beijing 16 3 N.L. of Canada Ottawa 14.5 4 Deutsch bibliotek Frankfurt 14.4 5 British Library London 13.0 6 Harvard University Cambridge 2.9 7 Russian State Library Moscow 11.8 8 Nat.Diet Library Tokyo 11.3 9 New York Pub. Lib. New York 10.5 10 Yale Univ. Library New Heron 9.5 Note: Indian National library claims to have several million items including 3 m books
  19. 19. Statistical miscellany – 17 M S Sridhar, Head, LDD (Dec16, ’02) Citing habits of ISAC authors No references With references Internal reports* 119 99 Papers in JST@ 18 96 INTERNAL REPORTS* NOT HAVING REFERENCES HAVING ONE OR MORE REFERENCES PAPERS IN JST@ *Checked 10 % systematic random sample; @ Checked all 114 papers in 13 issues from 91-97 No references (59.4%) No references (15.8%) (655 references In 119 reports) (844 references In 96 ppers)
  20. 20. Statistical miscellany –18 M S Sridhar, Head, LDD (Jan 1, ’03) Reservations for books AIT G CIG CMG CSG DSG ICG MDG P SG P P E G SMG SRG ST G T SG T P D FACILIT Y INSAT IRS OT HE R P r . DDs , e t c . LE OS ADMN, e t c . OT HE RS 0 2 0 0 4 0 0 6 0 0 Rank Gr./ Pr. Res./yr. Members Average 1 DSG 518 95 5.5 2 CIG 253 49 5.2 3 CSG 440 115 3.8 4 PPEG 102 27 3.8 5 SMG 183 50 3.7 6 TPD 67 19 3.5 7 SRG 442 137 3.2 8 AITG 495 188 2.6 9 STG 181 73 2.5 10 MDG 279 118 2.4 11 PSG 262 113 2.3 12 CMG 188 88 2.1 13 ICG 174 92 1.9 14 INSAT 62 37 1.7 15 IRS 62 42 1.5 16 TSG 141 103 1.4 17 DDs 17 18 0.9 18 Facility 306 419 0.7 19 Others 108 185 0.6 20 ADMN 93 296 0.3 21 LEOS 26 110 0.2 Total 4399 2374 1.9 Over one year
  21. 21. 4168 61 1976 14741016762148 1351 206 57 54 393343 19 2530 22Statistical miscellany –19M S Sridhar, Head, LDD(Feb 6, ’05) Visit to Library Homepage during August 2004
  22. 22. References 1. Anderson, T W and Sclove, Stanley L. An introduction to the statistical analysis of data. Boston : Houghton Miffin Company, 1978. 2.Best,Joel.Damnedliesandstatistics.California:UniversityofCaliforniaPress,2001. 3.Best,Joel.Moredamnedliesandstatistics;hownumbersconfusepublicissues.Berkeley:UniversityofCaliforniaPress,2004 4.Koosis,DonaldJ.Basenessstatistics.NewYork:JohnWiley,1972. 5.Miller,JaneE.TheChicagoguidetowritingaboutnumbers.Chicago:theUniversityofChicagoPress,2004. 6.Rodger,LeslieW.Statisticsformarketing.London:Mc-GrawHill,1984. 7.Salvatoe,Dominick.Theoryandproblemsofstatisticsandeconometrics(Schaum‟soutlineseries).NewYork: McGraw-Hill,1982. 8.Simpson,I.S.Howtointerpretstatisticaldata:aguideforlibrariansandinformationscientists.London:LibraryAssociation,1990. 9.Sridhar,MS."Userparticipationincollectionbuildinginaspeciallibrary:acasestudy."IASLICBulletin28(3) September1983:117-122. 10. Sridhar, M S. "Book procurement delay : a de-motivator to user participation in collection development". In : Building Library Collections and National Policy for Library and Information Services : Seminar Papers presented in XXX All India Library Conference, Rajasthan University, Jaipur, 28-31 January 1985. ed. by P.B.Mangala. Delhi: ILA, 1985. 329-334. 11. Sridhar, M S. "Library-use index and library-interaction index as measures of effectiveness of a special library : a case study." In : Proceedings of XXXIV All India Library Conference on Library and Information Services : Assessment and Effectiveness. Calcutta : ILA, 1988 : 449-465. 12. Sridhar, M S. "Library use and user research: with twenty case studies". New Delhi: Concept Publishing Company, 2002. 13. Sridhar, M S. “OPAC vs. card catalogue : a comparative study of user behaviour” , The Electronic Library, 22 (2) April 2004, p 175 -183. 14. Sridhar, M S. “Subject searching in the OPAC of a special library: problems and issues”, OCLC Systems and Services: International Digital Library Perspectives, 20 (4) Winter 2004, p 183 -191. References
  23. 23. About the AuthorDr.M.S.Sridharisapostgraduateinmathematicsandbusinessmanagementandadoctorateinlibraryandinformationscience.Heisintheprofessionforlast35years.Since1978heisheadingtheLibraryandDocumentationDivisionofISROSatelliteCentre,Bangalore.EarlierhehasworkedinthelibrariesofNationalAeronauticalLaboratory(Bangalore),IndianInstituteofManagement(Bangalore)andUniversityofMysore.Dr.Sridharhaspublishedfourbooks(„Userresearch:areviewofinformation-behaviourstudiesinscienceandtechnology‟, „Problemsofcollectiondevelopmentinspeciallibraries‟,„Informationbehaviourofscientistsandengineers‟and„Useanduserresearchwithtwentycasestudies‟)and74researchpapers,written19coursematerialforBLISandMLIS,presentedover22papersinconferencesandseminars,andcontributed5chapterstobooks.E-mail: sridharmirle@yahoo.com,mirlesridhar@gmail.com,sridhar@isac.gov.in;Phone: 91-80-25084451;Fax:91-80-25084475.

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