MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 11/25/00 through 12/01/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 152 501 653
Davis 336 58 394
Irvine 132 0 132
Los Angeles 14 148 162
Riverside 149 5 154
San Diego 86 37 123
San Francisco 24 0 24
Santa Barbara 85 27 112
Santa Cruz 71 9 80
Other - UC 0 52 52
Other-Network UC n/a 1,417 1,417
_______ ______ _____
1,049 2,254 3,303
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 14 52 1,832
2-4 a.m. 2 10 69
4-6 a.m. 6 15 60
6-8 a.m. 45 155 1,288
8-10 a.m. 423 1,956 12,952
10-12 a.m. 646 2,911 23,643
12-2 p.m. 560 2,309 16,990
2-4 p.m. 724 2,269 18,001
4-6 p.m. 514 1,786 13,975
6-8 p.m. 253 849 9,083
8-10 p.m. 80 476 5,528
10-12 p.m. 36 195 3,486
__________ __________ __________ _________________
Total: 3,303 12,983 106,907
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 476 1,794 2,270
Davis 842 125 967
Irvine 1,955 0 1,955
Los Angeles 30 525 555
Riverside 504 9 513
San Diego 306 66 372
San Francisco 82 0 82
Santa Barbara 332 109 441
Santa Cruz 195 39 234
Other - UC 0 149 149
Other-Network UC n/a 5,445 5,445
_______ ______ _____
4,722 8,261 12,983
Number of FIND commands by database
WorldCat 11,171
Art Index 117
ArticleFirst 170
ContentsFirst 97
ERIC 0
GPO 0
PapersFirst Index 232
ProceedingsFirst Index 45
SocAbstracts 0
PAIS International 66
MLA Bibliography 992
RILM Index 93
Total number of FIND commands 12,983
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 4,066 17,101 21,167
Davis 5,566 1,371 6,937
Irvine 11,646 0 11,646
Los Angeles 317 3,204 3,521
Riverside 4,754 54 4,808
San Diego 1,691 341 2,032
San Francisco 723 0 723
Santa Barbara 2,368 1,034 3,402
Santa Cruz 1,300 253 1,553
Other - UC 0 1,841 1,841
Other-Network UC n/a 49,277 49,277
_______ ______ _____
32,431 74,476 106,907
Number of Records Displayed by database
WorldCat 90,573
Art Index 705
ArticleFirst 2,050
ContentsFirst 2,759
ERIC 0
GPO 0
PapersFirst Index 816
ProceedingsFirst Index 422
SocAbstracts 0
PAIS International 567
MLA Bibliography 7,948
RILM Index 1,067
Total number of Records Displayed 106,907
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,567 77.7%
Art Index 60 1.8%
ArticleFirst 102 3.1%
ContentsFirst 6 0.2%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 154 4.7%
ProceedingsFirst Index 53 1.6%
SocAbstracts 0 0.0%
PAIS International 29 0.9%
MLA Bibliography 300 9.1%
RILM Index 32 1.0%
Percent of searches done in the WCAT database 86.0%
Percent of searches done in the ART database 0.9%
Percent of searches done in the JRNL database 1.3%
Percent of searches done in the JRNLT database 0.7%
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 1.8%
Percent of searches done in the PROC database 0.3%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.5%
Percent of searches done in the MLA database 7.6%
Percent of searches done in the RILM database 0.7%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:48
Average session length (minutes:seconds) 21:19
Longest session recorded (minutes:seconds) 277:11
Average number of searches completed per session 4.3
Retrievals per search - median 3.0
Retrievals per search - average 134.7
Retrievals per search - standard deviation 2232.0
Percent of searches completed with 0 results 24.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10,169 34.2%
DISPLAY (excluding automatic displays) 14,268 48.0%
HELP 48 0.2%
EXPLAIN 94 0.3%
SET/RESET 1,773 6.0%
SHOW 43 0.1%
ADD ON (AND, OR, AND NOT) 1,002 3.4%
LOGON or LOGOFF 1,919 6.5%
COMMENT 0 0.0%
USE 13 0.0%
OTHER 383 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.7%
SHORT 43.2%
LONG 9.2%
TAGS 0.1%
FIELDS 8.1%
PERIODICALS 19.8%
COMMENTS 0.0%
Other 8.9%
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 1,988 17.2% 452 22.7% 4 19.2 51.9
SUBJECT 217 1.9% 59 27.2% 39 964.6 2557.2
EXACT SUBJECT 12 0.1% 3 25.0% 143 674.7 1134.4
SERIES 146 1.3% 63 43.1% 6 139.0 517.3
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 3 0.0% 0 0.0% 5 5.0 2.0
LANGUAGE 18 0.2% 2 11.1% 49 138.7 215.8
FORM 237 2.0% 29 12.2% 13 52.7 190.7
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 4 0.0% 1 25.0% 127 110.0 100.6
ACCESSION NUMBER 101 0.9% 6 5.9% 1 1.0 0.0
PLACE OF PUBL. 19 0.2% 3 15.8% 6 638.7 2296.6
UNIFORM TITLE 3 0.0% 2 66.7% 1 1.0 0.0
GOV DOC NUM 0 0.0% 0 0.0% 0 0.0 0.0
ISBN/ISSN/LCCN 545 4.7% 167 30.6% 2 4.4 10.4
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,682 14.5% 499 29.7% 4 68.7 538.6
EXACT PE 166 1.4% 31 18.7% 6 19.8 51.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 616 5.3% 134 21.8% 3 30.0 203.9
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,807 50.2% 1,396 24.0% 7 265.8 3495.3
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 1,338 13.2% 303 22.6% 5 41.6 332.0
Single 8,825 86.8% 2,230 25.3% 5 213.7 2896.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:09
Average session length (minutes:seconds) 6:26
Longest session recorded (minutes:seconds) 23:38
Average number of searches completed per session 2.0
Retrievals per search - median 5.0
Retrievals per search - average 71.3
Retrievals per search - standard deviation 344.9
Percent of searches completed with 0 results 36.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 117 31.7%
DISPLAY (excluding automatic displays) 96 26.0%
HELP 17 4.6%
EXPLAIN 20 5.4%
SET/RESET 24 6.5%
SHOW 1 0.3%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 76 20.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 18 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.8%
SHORT 93.4%
LONG 4.1%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.7%
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 36 30.0% 14 38.9% 10 22.9 40.3
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 28 23.3% 9 32.1% 14 59.4 72.3
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 56 46.7% 21 37.5% 10 192.1 615.9
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 2.6% 1 33.3% 5 5.0 0.0
Single 114 97.4% 42 36.8% 12 115.8 434.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 6:59
Average session length (minutes:seconds) 13:12
Longest session recorded (minutes:seconds) 77:10
Average number of searches completed per session 1.7
Retrievals per search - median 2.0
Retrievals per search - average 1386.5
Retrievals per search - standard deviation 11440
Percent of searches completed with 0 results 34.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 162 31.1%
DISPLAY (excluding automatic displays) 141 27.1%
HELP 36 6.9%
EXPLAIN 30 5.8%
SET/RESET 81 15.5%
SHOW 4 0.8%
ADD ON (AND, OR, AND NOT) 8 1.5%
LOGON or LOGOFF 49 9.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 1.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 13.5%
SHORT 46.0%
LONG 0.6%
TAGS 0.0%
FIELDS 3.7%
PERIODICALS 35.6%
COMMENTS 0.0%
Other 0.6%
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 107 61.5% 43 40.2% 10 2912.2 17687.9
EXACT TITLE 6 3.4% 1 16.7% 6 23.2 28.2
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 17 9.8% 5 29.4% 5 3991.7 13479.8
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 31 17.8% 5 16.1% 5 34.8 113.5
EXACT PE 1 0.6% 0 0.0% 64 64.0 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 12 6.9% 5 41.7% 77 151.4 168.3
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 12 7.4% 5 41.7% 77 151.4 168.3
Single 150 92.6% 49 32.7% 5 2319.9 14798.5
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 40:47
Average session length (minutes:seconds) 35:59
Longest session recorded (minutes:seconds) 62:08
Average number of searches completed per session 16.2
Retrievals per search - median 12.0
Retrievals per search - average 50.8
Retrievals per search - standard deviation 192.3
Percent of searches completed with 0 results 43.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 97 54.5%
DISPLAY (excluding automatic displays) 66 37.1%
HELP 3 1.7%
EXPLAIN 2 1.1%
SET/RESET 3 1.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 6 3.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 0.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 60.9%
SHORT 33.3%
LONG 4.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 1.4%
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 79 81.4% 36 45.6% 23 94.1 281.6
EXACT JOURNAL 10 10.3% 1 10.0% 57 48.3 18.7
KEYWORD 1 1.0% 1 100% 0 0.0 0.0
SUBJECT 5 5.2% 3 60.0% 143 143.0 0.0
EXACT SUBJECT 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
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1 1.0% 1 100% 0 0.0 0.0
EXACT PE 1 1.0% 0 0.0% 161 161.0 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 0 0.0% 0 0.0% 0 0.0 0.0
Single 97 100% 42 43.3% 35 89.6 249.5
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 11:52
Average session length (minutes:seconds) 9:49
Longest session recorded (minutes:seconds) 24:11
Average number of searches completed per session 1.5
Retrievals per search - median 1.0
Retrievals per search - average 470.0
Retrievals per search - standard deviation 5574.1
Percent of searches completed with 0 results 46.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 200 36.6%
DISPLAY (excluding automatic displays) 119 21.8%
HELP 7 1.3%
EXPLAIN 8 1.5%
SET/RESET 138 25.3%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 32 5.9%
LOGON or LOGOFF 32 5.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.4%
SHORT 61.0%
LONG 3.2%
TAGS 1.9%
FIELDS 11.0%
PERIODICALS 5.8%
COMMENTS 0.0%
Other 6.5%
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 81 35.1% 35 43.2% 31 282.7 1102.0
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 132 57.1% 71 53.8% 4 1551.3 10818.9
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 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 1 0.4% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 7 3.0% 3 42.9% 3 21.5 39.0
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 10 4.3% 3 30.0% 61 134.0 185.0
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 31 15.5% 22 71.0% 2 10.6 26.1
Single 169 84.5% 69 40.8% 18 1084.7 8475.0
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 2:47
Average session length (minutes:seconds) 3:47
Longest session recorded (minutes:seconds) 12:53
Average number of searches completed per session 0.8
Retrievals per search - median 2.0
Retrievals per search - average 14.6
Retrievals per search - standard deviation 41.8
Percent of searches completed with 0 results 35.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 44 18.6%
DISPLAY (excluding automatic displays) 94 39.7%
HELP 13 5.5%
EXPLAIN 14 5.9%
SET/RESET 39 16.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.4%
LOGON or LOGOFF 28 11.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 47.6%
SHORT 12.6%
LONG 20.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 13.6%
COMMENTS 0.0%
Other 5.8%
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 2 4.5% 2 100% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 6 13.6% 3 50.0% 2 4.3 4.9
CONFERENCE 29 65.9% 10 34.5% 5 17.2 24.7
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 1 2.3% 0 0.0% 5 5.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 4 9.1% 0 0.0% 8 69.5 128.4
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 0 0.0% 0 0.0% 0 0.0 0.0
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 2 4.5% 0 0.0% 19 18.5 12.0
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 44 100% 15 34.1% 5 22.7 50.5
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 6:24
Average session length (minutes:seconds) 9:01
Longest session recorded (minutes:seconds) 40:28
Average number of searches completed per session 2.3
Retrievals per search - median 4.0
Retrievals per search - average 694.8
Retrievals per search - standard deviation 2268.0
Percent of searches completed with 0 results 40.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 61 25.7%
DISPLAY (excluding automatic displays) 83 35.0%
HELP 13 5.5%
EXPLAIN 17 7.2%
SET/RESET 10 4.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 5 2.1%
LOGON or LOGOFF 42 17.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 2.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.8%
SHORT 82.4%
LONG 2.2%
TAGS 0.0%
FIELDS 3.3%
PERIODICALS 3.3%
COMMENTS 0.0%
Other 0.0%
PAIS International 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 1 1.6% 1 100% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE 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 20 32.3% 13 65.0% 4 9.1 8.4
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 13 21.0% 2 15.4% 8 51.7 63.9
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 23 37.1% 10 43.5% 500 3279.3 4295.5
EXACT SUBJECT 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 1 1.6% 1 100% 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
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN/LCCN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 3 4.8% 0 0.0% 5 28.0 43.3
EXACT PE 1 1.6% 0 0.0% 23 23.0 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 1 1.6% 1 100% 0 0.0 0.0
Single 60 98.4% 25 41.7% 13 1239.2 3007.6
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:00
Average session length (minutes:seconds) 9:00
Longest session recorded (minutes:seconds) 54:47
Average number of searches completed per session 3.3
Retrievals per search - median 2.0
Retrievals per search - average 89.3
Retrievals per search - standard deviation 420.5
Percent of searches completed with 0 results 33.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 968 42.0%
DISPLAY (excluding automatic displays) 597 25.9%
HELP 62 2.7%
EXPLAIN 63 2.7%
SET/RESET 110 4.8%
SHOW 11 0.5%
ADD ON (AND, OR, AND NOT) 24 1.0%
LOGON or LOGOFF 398 17.3%
COMMENT 0 0.0%
USE 2 0.1%
OTHER 68 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.1%
SHORT 80.6%
LONG 5.5%
TAGS 0.2%
FIELDS 2.0%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 1.2%
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 280 28.5% 75 26.8% 40 183.2 575.0
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 327 33.2% 144 44.0% 3 69.3 272.6
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 53 5.4% 16 30.2% 25 375.7 835.4
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 1 0.1% 0 0.0% 24 24.0 0.0
EXACT PE 11 1.1% 2 18.2% 2 10.1 18.3
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 312 31.7% 98 31.4% 10 111.0 533.9
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 20 2.1% 12 60.0% 2 40.9 83.9
Single 944 97.9% 311 32.9% 11 138.0 519.0
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:28
Average session length (minutes:seconds) 10:35
Longest session recorded (minutes:seconds) 67:54
Average number of searches completed per session 2.9
Retrievals per search - median 2.0
Retrievals per search - average 36.5
Retrievals per search - standard deviation 119.6
Percent of searches completed with 0 results 34.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 93 28.4%
DISPLAY (excluding automatic displays) 154 47.1%
HELP 9 2.8%
EXPLAIN 5 1.5%
SET/RESET 14 4.3%
SHOW 1 0.3%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 42 12.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.6%
SHORT 93.1%
LONG 1.7%
TAGS 0.0%
FIELDS 0.6%
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 30 30.3% 15 50.0% 2 13.4 19.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 25 25.3% 10 40.0% 2 5.1 7.3
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 9 9.1% 1 11.1% 13 28.5 42.6
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 31 31.3% 5 16.1% 17 111.4 208.6
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 1 1.0% 1 100% 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 3 3.0% 2 66.7% 20 20.0 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 6 6.5% 2 33.3% 3 6.5 9.0
Single 87 93.5% 30 34.5% 14 59.1 148.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.1%
Ten most frequent errors:
1. NS command - no next screen 27.5%
2. First word of command is invalid 19.5%
3. FIND command with invalid index name 8.3%
4. Too many truncated words to process 8.2%
5. Z39.50 host cannot process command 7.8%
6. DISPLAY command contains invalid word 5.3%
7. Index invalid in current database 2.5%
8. 945 2.4%
9. DISPLAY command - no FIND results 2.1%
10. PS command - no previous screen 1.8%
11. All others 14.7%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 11.5%
2. LOCATE (Z39.50 DBS) 10.3%
3. FIND (Z39.50 DBS) 9.1%
4. GUIDE (Z39.50 A&I DBS w/o truncation) 7.5%
5. LOCATE (Z39.50 DBS) 6.7%
6. INDEXES (WCAT DB) 6.7%
7. Unrecognized term-reminders off 5.5%
8. COMMANDS (Z39.50 DBS) 4.0%
9. GUIDE (ART DB) 3.2%
10. Unrecognized term 3.2%
11. All others 32.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 31.0%
2. First word of command is invalid 15.4%
3. FIND command with invalid index name 7.2%
4. FIND command with zero results 6.5%
5. DISPLAY command-complete in one screen 5.9%
6. DISPLAY command - middle of >1 screen 5.2%
7. F/BR with index invalid in current DB 4.8%
8. DISPLAY command-first of >1 screen 4.1%
9. DISPLAY command - last of >1 screen 2.6%
10. 945 2.4%
11. All others 15.0%
Ten most frequent SHOW requests:
1. HISTORY 62.3%
2. GLOSSARY 11.5%
3. SEARCH 9.8%
4. SYSTEM NEWS 3.3%
5. Z39.50 NEWS 1.6%
6. SETTINGS (Z39.50 DBS) 1.6%
7. 0408 1.6%
8. 0416 1.6%
9. 0420 1.6%
10. LIBRARY NEWS 1.6%
11. All others 3.3%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)