MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 05/12/01 through 05/18/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 106 459 565
Davis 285 68 353
Irvine 103 0 103
Los Angeles 10 171 181
Riverside 208 5 213
San Diego 75 27 102
San Francisco 12 0 12
Santa Barbara 45 26 71
Santa Cruz 55 7 62
Other - UC 1 35 36
Other-Network UC n/a 1,904 1,904
_______ ______ _____
900 2,702 3,602
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 19 86 599
2-4 a.m. 14 16 59
4-6 a.m. 32 68 364
6-8 a.m. 137 324 1,814
8-10 a.m. 498 1,383 8,382
10-12 a.m. 660 1,893 12,659
12-2 p.m. 498 1,689 13,090
2-4 p.m. 630 1,864 14,445
4-6 p.m. 568 1,920 15,460
6-8 p.m. 223 1,171 11,878
8-10 p.m. 178 821 7,005
10-12 p.m. 145 825 4,580
__________ __________ __________ _________________
Total: 3,602 12,060 90,335
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 318 1,624 1,942
Davis 1,079 247 1,326
Irvine 349 0 349
Los Angeles 37 502 539
Riverside 812 6 818
San Diego 164 80 244
San Francisco 65 0 65
Santa Barbara 123 70 193
Santa Cruz 112 21 133
Other - UC 0 114 114
Other-Network UC n/a 6,337 6,337
_______ ______ _____
3,059 9,001 12,060
Number of FIND commands by database
WorldCat 10,346
Art Index 55
ArticleFirst 458
ContentsFirst 22
ERIC 0
GPO 0
PapersFirst Index 389
ProceedingsFirst Index 131
SocAbstracts 0
PAIS International 0
MLA Bibliography 608
RILM Index 51
Total number of FIND commands 12,060
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,921 19,343 21,264
Davis 7,523 1,367 8,890
Irvine 1,807 0 1,807
Los Angeles 192 4,693 4,885
Riverside 6,469 69 6,538
San Diego 1,848 1,005 2,853
San Francisco 676 0 676
Santa Barbara 731 761 1,492
Santa Cruz 837 116 953
Other - UC 0 975 975
Other-Network UC n/a 40,002 40,002
_______ ______ _____
22,004 68,331 90,335
Number of Records Displayed by database
WorldCat 80,738
Art Index 302
ArticleFirst 2,689
ContentsFirst 61
ERIC 0
GPO 0
PapersFirst Index 736
ProceedingsFirst Index 354
SocAbstracts 0
PAIS International 0
MLA Bibliography 4,819
RILM Index 636
Total number of Records Displayed 90,335
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,916 81.0%
Art Index 31 0.9%
ArticleFirst 222 6.2%
ContentsFirst 14 0.4%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 183 5.1%
ProceedingsFirst Index 52 1.4%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 167 4.6%
RILM Index 17 0.5%
Percent of searches done in the WCAT database 85.8%
Percent of searches done in the ART database 0.5%
Percent of searches done in the JRNL database 3.8%
Percent of searches done in the JRNLT database 0.2%
Percent of searches done in the EDUC database 0.0%
Percent of searches done in the GDOC database 0.0%
Percent of searches done in the PAPR database 3.2%
Percent of searches done in the PROC database 1.1%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.0%
Percent of searches done in the MLA database 5.0%
Percent of searches done in the RILM database 0.4%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 2.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.3
Standard deviation in seconds 1.9
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:43
Average session length (minutes:seconds) 23:39
Longest session recorded (minutes:seconds) 559:46
Average number of searches completed per session 3.5
Retrievals per search - median 3.0
Retrievals per search - average 392.6
Retrievals per search - standard deviation 5185.3
Percent of searches completed with 0 results 24.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8,957 33.3%
DISPLAY (excluding automatic displays) 11,947 44.4%
HELP 18 0.1%
EXPLAIN 56 0.2%
SET/RESET 2,073 7.7%
SHOW 66 0.2%
ADD ON (AND, OR, AND NOT) 1,389 5.2%
LOGON or LOGOFF 2,003 7.4%
COMMENT 0 0.0%
USE 18 0.1%
OTHER 406 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.2%
SHORT 41.4%
LONG 9.0%
TAGS 0.1%
FIELDS 8.8%
PERIODICALS 21.0%
COMMENTS 0.0%
Other 9.5%
WorldCat Database Statistics continued:
_______________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 0 0.0% 0 0.0% 0 0.0 0.0
EXACT TITLE 855 9.0% 211 24.7% 4 135.2 2607.3
SUBJECT 208 2.2% 25 12.0% 172 2788.6 8627.1
EXACT SUBJECT 8 0.1% 2 25.0% 1,059 5871.2 8313.1
SERIES 97 1.0% 30 30.9% 8 335.8 2013.2
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 31 0.3% 3 9.7% 33 36.4 32.1
LANGUAGE 5 0.1% 2 40.0% 94 76.0 65.9
FORM 113 1.2% 10 8.8% 15 173.1 565.4
MUSIC PUBLISHER 2 0.0% 1 50.0% 2 2.0 0.0
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 5 0.1% 3 60.0% 3 2.5 2.1
ACCESSION NUMBER 259 2.7% 6 2.3% 1 1.0 0.0
PLACE OF PUBL. 9 0.1% 1 11.1% 21 19.8 13.5
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 0 0.0% 0 0.0% 0 0.0 0.0
ISBN/ISSN/LCCN 822 8.6% 220 26.8% 2 7.5 78.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,640 17.2% 482 29.4% 5 96.4 1379.0
EXACT PE 241 2.5% 70 29.0% 3 16.6 56.5
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 193 2.0% 47 24.4% 9 159.8 587.4
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,033 52.9% 1,307 26.0% 10 767.0 8196.8
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 551 6.2% 130 23.6% 8 192.9 1607.4
Single 8,396 93.8% 2,152 25.6% 5 562.5 6585.7
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:50
Average session length (minutes:seconds) 4:13
Longest session recorded (minutes:seconds) 13:42
Average number of searches completed per session 1.8
Retrievals per search - median 2.0
Retrievals per search - average 72.9
Retrievals per search - standard deviation 178.9
Percent of searches completed with 0 results 38.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 50 24.3%
DISPLAY (excluding automatic displays) 55 26.7%
HELP 17 8.3%
EXPLAIN 18 8.7%
SET/RESET 11 5.3%
SHOW 1 0.5%
ADD ON (AND, OR, AND NOT) 5 2.4%
LOGON or LOGOFF 42 20.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 3.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 14.7%
SHORT 69.1%
LONG 11.8%
TAGS 0.0%
FIELDS 2.9%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.5%
Art Index Database Statistics continued:
________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 13 26.0% 5 38.5% 2 2.6 1.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 9 18.0% 5 55.6% 127 292.8 429.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 28 56.0% 10 35.7% 125 152.7 203.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 50 100% 20 40.0% 16 131.3 227.4
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 15:55
Average session length (minutes:seconds) 23:30
Longest session recorded (minutes:seconds) 100:46
Average number of searches completed per session 2.1
Retrievals per search - median 2.0
Retrievals per search - average 85.9
Retrievals per search - standard deviation 582.9
Percent of searches completed with 0 results 41.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 414 40.2%
DISPLAY (excluding automatic displays) 254 24.7%
HELP 10 1.0%
EXPLAIN 12 1.2%
SET/RESET 185 18.0%
SHOW 7 0.7%
ADD ON (AND, OR, AND NOT) 44 4.3%
LOGON or LOGOFF 86 8.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 18 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.2%
SHORT 72.1%
LONG 2.9%
TAGS 0.0%
FIELDS 4.9%
PERIODICALS 13.0%
COMMENTS 0.0%
Other 1.9%
ArticleFirst Database Statistics continued:
___________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 259 48.7% 118 45.6% 8 97.1 394.5
EXACT TITLE 4 0.8% 4 100% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 15 2.8% 6 40.0% 33 68.3 75.2
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 34 6.4% 17 50.0% 3 50.2 135.6
EXACT PE 6 1.1% 0 0.0% 8 19.8 25.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 214 40.2% 74 34.6% 10 203.0 1005.2
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 113 27.3% 43 38.1% 7 81.3 413.1
Single 301 72.7% 130 43.2% 12 189.0 904.8
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 0:00
Average session length (minutes:seconds) 0:00
Longest session recorded (minutes:seconds) 0:00
Average number of searches completed per session 1.6
Retrievals per search - median 0.0
Retrievals per search - average 15.6
Retrievals per search - standard deviation 40.9
Percent of searches completed with 0 results 68.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 22 38.6%
DISPLAY (excluding automatic displays) 15 26.3%
HELP 0 0.0%
EXPLAIN 6 10.5%
SET/RESET 14 24.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 0 0.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 64.7%
SHORT 0.0%
LONG 35.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
ContentsFirst Database Statistics continued:
____________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
JOURNAL 6 20.0% 3 50.0% 4 30.0 47.7
EXACT JOURNAL 14 46.7% 11 78.6% 86 83.7 78.5
KEYWORD 6 20.0% 6 100% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 4 13.3% 3 75.0% 3 3.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 8 36.4% 8 100% 0 0.0 0.0
Single 14 63.6% 7 50.0% 4 49.1 62.8
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 20:51
Average session length (minutes:seconds) 22:35
Longest session recorded (minutes:seconds) 66:02
Average number of searches completed per session 2.1
Retrievals per search - median 1.0
Retrievals per search - average 268.0
Retrievals per search - standard deviation 2924.7
Percent of searches completed with 0 results 42.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 320 42.3%
DISPLAY (excluding automatic displays) 153 20.2%
HELP 0 0.0%
EXPLAIN 6 0.8%
SET/RESET 168 22.2%
SHOW 7 0.9%
ADD ON (AND, OR, AND NOT) 69 9.1%
LOGON or LOGOFF 30 4.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 0.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.7%
SHORT 67.3%
LONG 0.9%
TAGS 0.0%
FIELDS 7.7%
PERIODICALS 6.4%
COMMENTS 0.0%
Other 10.0%
PapersFirst Index Database Statistics continued:
________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 195 44.5% 76 39.0% 15 375.9 1403.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EDITOR 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 196 44.7% 104 53.1% 3 642.4 5798.3
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 3 0.7% 1 33.3% 24 24.0 0.0
CONFERENCE 7 1.6% 6 85.7% 443 443.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 2 0.5% 2 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 23 5.3% 9 39.1% 28 144.4 266.3
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 8 1.8% 1 12.5% 2 9.3 15.5
EXACT PE 4 0.9% 0 0.0% 3 3.3 2.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 114 35.6% 65 57.0% 3 51.0 154.9
Single 206 64.4% 68 33.0% 15 734.9 4886.3
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 16:24
Average session length (minutes:seconds) 19:10
Longest session recorded (minutes:seconds) 38:28
Average number of searches completed per session 2.5
Retrievals per search - median 0.0
Retrievals per search - average 87.9
Retrievals per search - standard deviation 643.9
Percent of searches completed with 0 results 61.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 123 47.1%
DISPLAY (excluding automatic displays) 55 21.1%
HELP 3 1.1%
EXPLAIN 6 2.3%
SET/RESET 44 16.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 8 3.1%
LOGON or LOGOFF 18 6.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 63.9%
SHORT 8.3%
LONG 6.9%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 20.8%
ProceedingsFirst Index Database Statistics continued:
_____________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
EDITOR 4 3.2% 3 75.0% 11 11.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 7 5.6% 5 71.4% 3 2.5 0.7
CONFERENCE 107 84.9% 64 59.8% 7 267.0 1111.0
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 3 2.4% 2 66.7% 7 7.0 0.0
JOURNAL 1 0.8% 1 100% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 3 2.4% 1 33.3% 2 1.5 0.7
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 1 0.8% 1 100% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 3 2.4% 1 33.3% 2 1.5 0.7
Single 120 97.6% 75 62.5% 7 255.6 1086.7
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:16
Average session length (minutes:seconds) 9:34
Longest session recorded (minutes:seconds) 66:26
Average number of searches completed per session 3.6
Retrievals per search - median 3.0
Retrievals per search - average 157.3
Retrievals per search - standard deviation 1266.3
Percent of searches completed with 0 results 31.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 577 40.7%
DISPLAY (excluding automatic displays) 431 30.4%
HELP 24 1.7%
EXPLAIN 27 1.9%
SET/RESET 67 4.7%
SHOW 2 0.1%
ADD ON (AND, OR, AND NOT) 31 2.2%
LOGON or LOGOFF 213 15.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 47 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.6%
SHORT 79.2%
LONG 15.7%
TAGS 0.0%
FIELDS 0.7%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 0.9%
MLA Bibliography Database Statistics continued:
_______________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
SUBJECT 130 21.9% 48 36.9% 33 715.9 3224.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 118 19.9% 42 35.6% 6 58.5 140.8
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 105 17.7% 37 35.2% 7 177.1 1070.7
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2 0.3% 0 0.0% 78 77.5 103.9
EXACT PE 1 0.2% 0 0.0% 2 2.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 237 40.0% 64 27.0% 10 126.9 369.4
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 18 3.1% 8 44.4% 3 284.2 759.5
Single 557 96.9% 175 31.4% 11 239.8 1584.9
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:24
Average session length (minutes:seconds) 8:27
Longest session recorded (minutes:seconds) 31:57
Average number of searches completed per session 3.0
Retrievals per search - median 5.0
Retrievals per search - average 165.3
Retrievals per search - standard deviation 1024.4
Percent of searches completed with 0 results 31.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 49 35.5%
DISPLAY (excluding automatic displays) 55 39.9%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 8 5.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 1.4%
LOGON or LOGOFF 19 13.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 22.2%
SHORT 77.8%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
RILM Index Database Statistics continued:
_________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
AUTHOR 23 43.4% 9 39.1% 18 28.1 27.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 12 22.6% 5 41.7% 7 20.6 40.5
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 18 34.0% 4 22.2% 17 561.2 1949.7
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
DISSERTATION SRC 0 0.0% 0 0.0% 0 0.0 0.0
MAIN WORK 0 0.0% 0 0.0% 0 0.0 0.0
REVIEW ITEM 0 0.0% 0 0.0% 0 0.0 0.0
REVIEWED WORK 0 0.0% 0 0.0% 0 0.0 0.0
COLLECTED WORKS 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
SHORT ENTRY 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
CLASSIFICATION 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 4 8.2% 3 75.0% 2 2.0 0.0
Single 45 91.8% 12 26.7% 16 254.2 1271.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.7%
Ten most frequent errors:
1. NS command - no next screen 34.0%
2. First word of command is invalid 17.0%
3. Z39.50 host cannot process command 9.5%
4. Too many truncated words to process 6.6%
5. FIND command with invalid index name 6.1%
6. DISPLAY command contains invalid word 4.6%
7. Max. # of ports to a Z39 db are in use 2.6%
8. Index invalid in current database 2.4%
9. DISPLAY command - no FIND results 2.1%
10. PS command - no previous screen 1.4%
11. All others 13.6%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 10.7%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 10.7%
3. INDEXES (WCAT DB) 9.9%
4. Unrecognized term-reminders off 6.1%
5. Unrecognized term 6.1%
6. INDEXES (JRNL DB) 5.3%
7. INDEXES (PROC DB) 4.6%
8. FIND (Z39.50 DBS) 3.8%
9. LOCATE (Z39.50 DBS) 3.1%
10. G701 3.1%
11. All others 36.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 28.1%
2. First word of command is invalid 14.8%
3. DISPLAY command-complete in one screen 8.4%
4. FIND command with invalid index name 6.4%
5. DISPLAY command - middle of >1 screen 6.4%
6. FIND command with zero results 5.9%
7. F/BR with index invalid in current DB 5.9%
8. DISPLAY command-first of >1 screen 3.9%
9. SHOW command with invalid modifier 3.0%
10. DISPLAY command - last of >1 screen 3.0%
11. All others 14.3%
Ten most frequent SHOW requests:
1. HISTORY 88.0%
2. GLOSSARY 4.8%
3. SETTINGS (Z39.50 DBS) 2.4%
4. SEARCH 2.4%
5. SYSTEM NEWS 1.2%
6. PAGESIZE 1.2%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)