MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 04/21/01 through 04/27/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 119 490 609
Davis 254 65 319
Irvine 115 0 115
Los Angeles 4 133 137
Riverside 44 3 47
San Diego 90 29 119
San Francisco 40 0 40
Santa Barbara 75 20 95
Santa Cruz 23 4 27
Other - UC 2 34 36
Other-Network UC n/a 1,626 1,626
_______ ______ _____
766 2,404 3,170
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 12 153 872
2-4 a.m. 5 16 61
4-6 a.m. 5 9 35
6-8 a.m. 51 273 1,645
8-10 a.m. 365 1,193 9,335
10-12 a.m. 618 1,731 15,816
12-2 p.m. 554 1,636 12,884
2-4 p.m. 686 2,032 16,354
4-6 p.m. 477 1,736 16,482
6-8 p.m. 210 1,489 20,324
8-10 p.m. 101 609 6,800
10-12 p.m. 86 889 6,863
__________ __________ __________ _________________
Total: 3,170 11,766 107,471
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 332 1,586 1,918
Davis 623 164 787
Irvine 239 0 239
Los Angeles 4 348 352
Riverside 181 9 190
San Diego 221 65 286
San Francisco 169 0 169
Santa Barbara 209 87 296
Santa Cruz 45 27 72
Other - UC 2 79 81
Other-Network UC n/a 7,376 7,376
_______ ______ _____
2,025 9,741 11,766
Number of FIND commands by database
WorldCat 10,500
Art Index 76
ArticleFirst 290
ContentsFirst 7
ERIC 0
GPO 0
PapersFirst Index 376
ProceedingsFirst Index 66
SocAbstracts 0
PAIS International 0
MLA Bibliography 417
RILM Index 34
Total number of FIND commands 11,766
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,118 20,680 22,798
Davis 5,918 1,143 7,061
Irvine 2,102 0 2,102
Los Angeles 99 7,896 7,995
Riverside 3,275 45 3,320
San Diego 1,576 658 2,234
San Francisco 1,342 0 1,342
Santa Barbara 1,175 1,879 3,054
Santa Cruz 422 296 718
Other - UC 21 680 701
Other-Network UC n/a 56,146 56,146
_______ ______ _____
18,048 89,423 107,471
Number of Records Displayed by database
WorldCat 99,121
Art Index 896
ArticleFirst 1,346
ContentsFirst 91
ERIC 0
GPO 0
PapersFirst Index 1,180
ProceedingsFirst Index 704
SocAbstracts 0
PAIS International 0
MLA Bibliography 3,860
RILM Index 273
Total number of Records Displayed 107,471
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,481 78.3%
Art Index 35 1.1%
ArticleFirst 194 6.1%
ContentsFirst 11 0.3%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 201 6.3%
ProceedingsFirst Index 47 1.5%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 183 5.8%
RILM Index 18 0.6%
Percent of searches done in the WCAT database 89.2%
Percent of searches done in the ART database 0.6%
Percent of searches done in the JRNL database 2.5%
Percent of searches done in the JRNLT database 0.1%
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 0.6%
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 3.5%
Percent of searches done in the RILM database 0.3%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 1.5
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 1.3
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:35
Average session length (minutes:seconds) 22:52
Longest session recorded (minutes:seconds) 287:41
Average number of searches completed per session 4.2
Retrievals per search - median 2.0
Retrievals per search - average 290.5
Retrievals per search - standard deviation 6152.5
Percent of searches completed with 0 results 25.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,412 33.9%
DISPLAY (excluding automatic displays) 13,159 47.3%
HELP 25 0.1%
EXPLAIN 62 0.2%
SET/RESET 1,687 6.1%
SHOW 48 0.2%
ADD ON (AND, OR, AND NOT) 1,088 3.9%
LOGON or LOGOFF 1,903 6.8%
COMMENT 0 0.0%
USE 7 0.0%
OTHER 400 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.8%
SHORT 37.9%
LONG 7.1%
TAGS 0.2%
FIELDS 8.4%
PERIODICALS 29.1%
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 946 9.6% 233 24.6% 4 30.9 81.7
SUBJECT 207 2.1% 43 20.8% 66 841.0 2478.4
EXACT SUBJECT 8 0.1% 4 50.0% 386 384.3 394.6
SERIES 110 1.1% 40 36.4% 2 92.1 389.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 15 0.2% 6 40.0% 52 56.1 61.2
FORM 97 1.0% 11 11.3% 13 125.0 730.4
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 2 0.0% 2 100% 0 0.0 0.0
NOTES 16 0.2% 3 18.8% 3 34.9 60.4
ACCESSION NUMBER 263 2.7% 10 3.8% 1 1.0 0.0
PLACE OF PUBL. 3 0.0% 0 0.0% 42 46.7 41.2
UNIFORM TITLE 1 0.0% 0 0.0% 2 2.0 0.0
GOV DOC NUM 10 0.1% 2 20.0% 1 27.3 74.2
ISBN/ISSN/LCCN 738 7.5% 204 27.6% 2 11.2 109.7
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,587 26.2% 863 33.4% 5 122.4 1484.4
EXACT PE 191 1.9% 28 14.7% 7 105.1 354.1
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 193 2.0% 22 11.4% 11 66.6 151.9
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,486 45.4% 1,133 25.3% 10 727.9 10786.1
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 451 4.8% 88 19.5% 8 65.2 371.7
Single 8,954 95.2% 2,424 27.1% 6 431.6 7782.7
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 6:38
Average session length (minutes:seconds) 8:11
Longest session recorded (minutes:seconds) 33:20
Average number of searches completed per session 2.2
Retrievals per search - median 7.0
Retrievals per search - average 118.4
Retrievals per search - standard deviation 287.7
Percent of searches completed with 0 results 27.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 75 28.2%
DISPLAY (excluding automatic displays) 90 33.8%
HELP 9 3.4%
EXPLAIN 8 3.0%
SET/RESET 10 3.8%
SHOW 3 1.1%
ADD ON (AND, OR, AND NOT) 1 0.4%
LOGON or LOGOFF 54 20.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 16 6.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 92.5%
LONG 3.7%
TAGS 0.0%
FIELDS 1.9%
PERIODICALS 1.9%
COMMENTS 0.0%
Other 0.0%
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 7 9.2% 3 42.9% 20 20.3 17.0
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
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 47 61.8% 11 23.4% 176 152.0 196.2
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 1 1.3% 0 0.0% 36 36.0 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 21 27.6% 8 38.1% 5 260.3 592.2
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 1 1.3% 1 100% 0 0.0 0.0
Single 74 98.7% 20 27.0% 34 166.2 330.3
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:55
Average session length (minutes:seconds) 17:30
Longest session recorded (minutes:seconds) 70:19
Average number of searches completed per session 1.5
Retrievals per search - median 4.0
Retrievals per search - average 317.8
Retrievals per search - standard deviation 1529.8
Percent of searches completed with 0 results 29.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 269 40.0%
DISPLAY (excluding automatic displays) 134 19.9%
HELP 3 0.4%
EXPLAIN 1 0.1%
SET/RESET 151 22.4%
SHOW 2 0.3%
ADD ON (AND, OR, AND NOT) 21 3.1%
LOGON or LOGOFF 80 11.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 12 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.3%
SHORT 80.5%
LONG 1.1%
TAGS 0.0%
FIELDS 1.7%
PERIODICALS 4.6%
COMMENTS 0.0%
Other 1.7%
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 129 42.7% 44 34.1% 6 431.5 2115.2
EXACT TITLE 1 0.3% 1 100% 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 9 3.0% 1 11.1% 13 1017.5 2045.1
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 5 1.7% 2 40.0% 2 28.3 46.5
EXACT PE 2 0.7% 0 0.0% 1 1.0 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 156 51.7% 38 24.4% 26 405.4 1482.9
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 33 12.3% 11 33.3% 8 35.8 113.4
Single 236 87.7% 64 27.1% 19 530.1 1960.1
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 5:19
Average session length (minutes:seconds) 5:19
Longest session recorded (minutes:seconds) 7:57
Average number of searches completed per session 0.6
Retrievals per search - median 28.0
Retrievals per search - average 31.9
Retrievals per search - standard deviation 49.3
Percent of searches completed with 0 results 42.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7 26.9%
DISPLAY (excluding automatic displays) 6 23.1%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 9 34.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 15.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 66.7%
SHORT 0.0%
LONG 33.3%
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 5 71.4% 1 20.0% 28 55.8 55.5
EXACT JOURNAL 2 28.6% 2 100% 0 0.0 0.0
KEYWORD 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
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 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 0 0.0% 0 0.0% 0 0.0 0.0
Single 7 100% 3 42.9% 28 55.8 55.5
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:06
Average session length (minutes:seconds) 19:56
Longest session recorded (minutes:seconds) 85:12
Average number of searches completed per session 1.9
Retrievals per search - median 1.0
Retrievals per search - average 68.4
Retrievals per search - standard deviation 479.3
Percent of searches completed with 0 results 42.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 349 41.8%
DISPLAY (excluding automatic displays) 211 25.3%
HELP 1 0.1%
EXPLAIN 1 0.1%
SET/RESET 168 20.1%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 27 3.2%
LOGON or LOGOFF 67 8.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 1.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.0%
SHORT 54.1%
LONG 2.6%
TAGS 0.0%
FIELDS 7.9%
PERIODICALS 16.2%
COMMENTS 0.0%
Other 7.1%
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 153 38.2% 62 40.5% 7 134.0 375.8
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 201 50.2% 102 50.7% 3 34.2 96.5
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 4 1.0% 1 25.0% 2 40.7 67.0
CONFERENCE 2 0.5% 1 50.0% 89 89.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 1 0.2% 0 0.0% 8,477 8477.0 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% 0 0.0% 329 329.0 373.4
EXACT JOURNAL 1 0.2% 0 0.0% 148 148.0 0.0
DATE 9 2.2% 8 88.9% 55 55.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.2% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 23 5.7% 3 13.0% 6 11.9 17.7
EXACT PE 3 0.7% 0 0.0% 5 3.7 2.3
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 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 52 14.9% 31 59.6% 1 4.8 11.8
Single 296 85.1% 116 39.2% 7 139.9 685.5
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 7:27
Average session length (minutes:seconds) 9:53
Longest session recorded (minutes:seconds) 35:44
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 11.0
Retrievals per search - standard deviation 31.5
Percent of searches completed with 0 results 45.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 66 25.2%
DISPLAY (excluding automatic displays) 87 33.2%
HELP 16 6.1%
EXPLAIN 23 8.8%
SET/RESET 30 11.5%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 32 12.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 2.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 46.7%
SHORT 19.0%
LONG 14.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 20.0%
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 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 3 4.3% 1 33.3% 86 86.0 18.4
CONFERENCE 54 78.3% 24 44.4% 3 7.2 8.6
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 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 9 13.0% 5 55.6% 85 84.5 91.8
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 4.3% 0 0.0% 2 2.3 1.5
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 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 4.5% 0 0.0% 2 2.3 1.5
Single 63 95.5% 30 47.6% 5 21.8 42.2
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:22
Average session length (minutes:seconds) 8:52
Longest session recorded (minutes:seconds) 100:06
Average number of searches completed per session 2.3
Retrievals per search - median 5.0
Retrievals per search - average 106.7
Retrievals per search - standard deviation 552.5
Percent of searches completed with 0 results 27.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 410 34.7%
DISPLAY (excluding automatic displays) 317 26.8%
HELP 36 3.0%
EXPLAIN 34 2.9%
SET/RESET 67 5.7%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 7 0.6%
LOGON or LOGOFF 252 21.3%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 56 4.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.3%
SHORT 78.0%
LONG 14.0%
TAGS 0.0%
FIELDS 1.2%
PERIODICALS 1.2%
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 73 17.3% 23 31.5% 42 598.5 1474.7
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 113 26.7% 42 37.2% 6 75.2 209.6
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 75 17.7% 17 22.7% 13 68.8 181.6
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 0.2% 0 0.0% 12 12.0 0.0
EXACT PE 1 0.2% 0 0.0% 3 3.0 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 160 37.8% 40 25.0% 11 36.3 73.8
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 13 3.2% 8 61.5% 6 34.4 63.1
Single 397 96.8% 106 26.7% 14 148.7 655.0
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 1:56
Average session length (minutes:seconds) 2:54
Longest session recorded (minutes:seconds) 13:45
Average number of searches completed per session 1.8
Retrievals per search - median 3.0
Retrievals per search - average 18.5
Retrievals per search - standard deviation 35.3
Percent of searches completed with 0 results 27.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 33 26.8%
DISPLAY (excluding automatic displays) 54 43.9%
HELP 0 0.0%
EXPLAIN 2 1.6%
SET/RESET 3 2.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 26 21.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.5%
SHORT 88.5%
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 10 27.0% 4 40.0% 24 34.2 37.4
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 7 18.9% 1 14.3% 5 6.8 6.9
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 15 40.5% 5 33.3% 8 31.3 52.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 5.4% 1 50.0% 50 50.0 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 2 5.4% 1 50.0% 2 2.0 0.0
PERIODICAL 1 2.7% 1 100% 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 12.5% 3 75.0% 2 2.0 0.0
Single 28 87.5% 6 21.4% 11 27.6 40.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.9%
Ten most frequent errors:
1. NS command - no next screen 30.5%
2. Z39.50 host cannot process command 17.9%
3. First word of command is invalid 16.5%
4. Too many truncated words to process 5.2%
5. DISPLAY command contains invalid word 5.1%
6. FIND command with invalid index name 5.1%
7. Search term missing from search command 1.6%
8. 945 1.6%
9. DISPLAY command - no FIND results 1.5%
10. Index invalid in current database 1.4%
11. All others 13.6%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 16.0%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 14.5%
3. INDEXES (WCAT DB) 11.5%
4. FIND (Z39.50 DBS) 9.9%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 8.4%
6. LOCATE (Z39.50 DBS) 6.1%
7. INDEXES (PROC DB) 4.6%
8. Unrecognized term 4.6%
9. COMMANDS (Z39.50 DBS) 3.8%
10. G985 2.3%
11. All others 18.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.4%
2. First word of command is invalid 17.2%
3. DISPLAY command-complete in one screen 8.1%
4. FIND command with invalid index name 5.4%
5. DISPLAY command-first of >1 screen 5.4%
6. DISPLAY command - last of >1 screen 5.4%
7. F/BR with index invalid in current DB 5.4%
8. FIND command retrieves 1 book 5.0%
9. 3 HELP commands issued from same code 3.6%
10. FIND command with zero results 3.6%
11. All others 16.3%
Ten most frequent SHOW requests:
1. HISTORY 81.4%
2. SEARCH 5.1%
3. Z39.50 NEWS 3.4%
4. GLOSSARY 3.4%
5. LOCATION 1.7%
6. SETTINGS (Z39.50 DBS) 1.7%
7. SYSTEM NEWS 1.7%
11. All others 1.7%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)