MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 02/03/01 through 02/09/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 123 583 706
Davis 347 86 433
Irvine 74 0 74
Los Angeles 3 134 137
Riverside 195 3 198
San Diego 65 38 103
San Francisco 32 0 32
Santa Barbara 53 31 84
Santa Cruz 39 16 55
Other - UC 0 25 25
Other-Network UC n/a 1,744 1,744
_______ ______ _____
931 2,660 3,591
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 12 39 340
2-4 a.m. 1 1 0
4-6 a.m. 4 7 32
6-8 a.m. 47 171 893
8-10 a.m. 449 1,300 11,618
10-12 a.m. 621 1,836 14,604
12-2 p.m. 628 2,109 14,449
2-4 p.m. 752 2,938 20,290
4-6 p.m. 713 2,153 17,257
6-8 p.m. 245 968 9,388
8-10 p.m. 95 566 5,157
10-12 p.m. 24 86 1,062
__________ __________ __________ _________________
Total: 3,591 12,174 95,090
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 462 1,549 2,011
Davis 904 242 1,146
Irvine 1,326 0 1,326
Los Angeles 4 423 427
Riverside 654 21 675
San Diego 330 87 417
San Francisco 137 0 137
Santa Barbara 122 109 231
Santa Cruz 60 29 89
Other - UC 0 52 52
Other-Network UC n/a 5,663 5,663
_______ ______ _____
3,999 8,175 12,174
Number of FIND commands by database
WorldCat 10,153
Art Index 134
ArticleFirst 265
ContentsFirst 2
ERIC 0
GPO 0
PapersFirst Index 290
ProceedingsFirst Index 59
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,230
RILM Index 41
Total number of FIND commands 12,174
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 4,101 15,044 19,145
Davis 4,580 1,341 5,921
Irvine 6,430 0 6,430
Los Angeles 45 5,322 5,367
Riverside 8,014 94 8,108
San Diego 1,378 1,444 2,822
San Francisco 1,217 0 1,217
Santa Barbara 1,127 299 1,426
Santa Cruz 357 162 519
Other - UC 0 1,403 1,403
Other-Network UC n/a 42,732 42,732
_______ ______ _____
27,249 67,841 95,090
Number of Records Displayed by database
WorldCat 84,798
Art Index 679
ArticleFirst 1,061
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 1,118
ProceedingsFirst Index 413
SocAbstracts 0
PAIS International 0
MLA Bibliography 6,667
RILM Index 354
Total number of Records Displayed 95,090
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,806 78.1%
Art Index 67 1.9%
ArticleFirst 206 5.7%
ContentsFirst 1 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 185 5.2%
ProceedingsFirst Index 59 1.6%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 252 7.0%
RILM Index 15 0.4%
Percent of searches done in the WCAT database 83.4%
Percent of searches done in the ART database 1.1%
Percent of searches done in the JRNL database 2.2%
Percent of searches done in the JRNLT database 0.0%
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 2.4%
Percent of searches done in the PROC database 0.5%
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 10.1%
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 1.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 1.2
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:31
Average session length (minutes:seconds) 20:52
Longest session recorded (minutes:seconds) 351:59
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 264.6
Retrievals per search - standard deviation 9584.0
Percent of searches completed with 0 results 23.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,192 33.1%
DISPLAY (excluding automatic displays) 13,150 47.3%
HELP 37 0.1%
EXPLAIN 65 0.2%
SET/RESET 2,105 7.6%
SHOW 40 0.1%
ADD ON (AND, OR, AND NOT) 961 3.5%
LOGON or LOGOFF 1,814 6.5%
COMMENT 0 0.0%
USE 22 0.1%
OTHER 415 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 40.3%
LONG 7.2%
TAGS 0.1%
FIELDS 8.5%
PERIODICALS 21.3%
COMMENTS 0.0%
Other 11.4%
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 1,323 13.1% 241 18.2% 3 18.6 80.2
SUBJECT 245 2.4% 35 14.3% 77 1595.4 5733.6
EXACT SUBJECT 5 0.0% 3 60.0% 1,852 1852.0 2326.4
SERIES 118 1.2% 55 46.6% 4 293.0 1958.2
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 62 0.6% 7 11.3% 23 46.7 53.6
LANGUAGE 6 0.1% 2 33.3% 8 174.0 336.0
FORM 146 1.4% 26 17.8% 10 143.4 721.1
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 7 0.1% 5 71.4% 5 5.0 4.2
ACCESSION NUMBER 169 1.7% 11 6.5% 1 1.0 0.0
PLACE OF PUBL. 10 0.1% 3 30.0% 3 25.6 58.5
UNIFORM TITLE 2 0.0% 2 100% 0 0.0 0.0
GOV DOC NUM 12 0.1% 5 41.7% 1 1.1 0.4
ISBN/ISSN/LCCN 595 5.9% 166 27.9% 1 3.8 12.2
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,604 15.8% 458 28.6% 4 45.9 257.0
EXACT PE 184 1.8% 40 21.7% 6 39.5 220.3
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 418 4.1% 80 19.1% 3 2842.7 51312.1
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,231 51.6% 1,233 23.6% 7 307.8 2917.3
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 916 10.0% 177 19.3% 5 56.3 354.6
Single 8,267 90.0% 2,005 24.3% 5 409.8 12194.2
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:01
Average session length (minutes:seconds) 7:29
Longest session recorded (minutes:seconds) 72:38
Average number of searches completed per session 2.0
Retrievals per search - median 2.0
Retrievals per search - average 31.6
Retrievals per search - standard deviation 100.8
Percent of searches completed with 0 results 42.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 132 30.1%
DISPLAY (excluding automatic displays) 87 19.8%
HELP 43 9.8%
EXPLAIN 26 5.9%
SET/RESET 17 3.9%
SHOW 3 0.7%
ADD ON (AND, OR, AND NOT) 2 0.5%
LOGON or LOGOFF 103 23.5%
COMMENT 0 0.0%
USE 1 0.2%
OTHER 25 5.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.4%
SHORT 84.7%
LONG 8.1%
TAGS 0.0%
FIELDS 0.9%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.9%
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 43 32.3% 17 39.5% 9 47.3 148.6
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 44 33.1% 21 47.7% 44 60.7 122.5
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 46 34.6% 20 43.5% 4 60.3 120.7
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 0.8% 1 100% 0 0.0 0.0
Single 131 99.2% 56 42.7% 12 55.9 129.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:31
Average session length (minutes:seconds) 16:25
Longest session recorded (minutes:seconds) 51:27
Average number of searches completed per session 1.3
Retrievals per search - median 2.0
Retrievals per search - average 53.6
Retrievals per search - standard deviation 277.4
Percent of searches completed with 0 results 41.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 239 36.4%
DISPLAY (excluding automatic displays) 144 21.9%
HELP 3 0.5%
EXPLAIN 2 0.3%
SET/RESET 195 29.7%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 26 4.0%
LOGON or LOGOFF 34 5.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 13 2.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 36.2%
SHORT 36.8%
LONG 2.9%
TAGS 0.0%
FIELDS 5.7%
PERIODICALS 18.4%
COMMENTS 0.0%
Other 0.0%
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 178 63.8% 81 45.5% 5 45.8 134.3
EXACT TITLE 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
KEYWORD 3 1.1% 0 0.0% 13 11.3 4.7
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 15 5.4% 2 13.3% 12 58.0 144.1
EXACT PE 4 1.4% 1 25.0% 19 46.7 57.7
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 79 28.3% 24 30.4% 8 166.1 566.7
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 40 16.7% 14 35.0% 5 16.8 31.6
Single 199 83.3% 80 40.2% 10 114.6 406.2
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 2:31
Average session length (minutes:seconds) 2:31
Longest session recorded (minutes:seconds) 2:31
Average number of searches completed per session 2.0
Retrievals per search - median 76.0
Retrievals per search - average 76.0
Retrievals per search - standard deviation 107.5
Percent of searches completed with 0 results 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2 33.3%
DISPLAY (excluding automatic displays) 0 0.0%
HELP 1 16.7%
EXPLAIN 0 0.0%
SET/RESET 1 16.7%
SHOW 1 16.7%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 1 16.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 0.0%
LONG 0.0%
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 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 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 100% 1 50.0% 152 152.0 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 2 100% 1 50.0% 152 152.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 13:31
Average session length (minutes:seconds) 19:20
Longest session recorded (minutes:seconds) 57:18
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 46.8
Retrievals per search - standard deviation 358.1
Percent of searches completed with 0 results 42.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 272 33.9%
DISPLAY (excluding automatic displays) 302 37.7%
HELP 3 0.4%
EXPLAIN 2 0.2%
SET/RESET 169 21.1%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 18 2.2%
LOGON or LOGOFF 25 3.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 18.1%
SHORT 35.0%
LONG 5.1%
TAGS 0.0%
FIELDS 12.1%
PERIODICALS 20.9%
COMMENTS 0.0%
Other 8.8%
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 26.0% 32 39.5% 4 163.8 772.2
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 184 59.0% 94 51.1% 2 14.7 56.3
EXACT TITLE 1 0.3% 0 0.0% 3 3.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 1.0% 2 66.7% 1,738 1738.0 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 3 1.0% 0 0.0% 73 741.0 1180.5
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 5 1.6% 4 80.0% 1 1.0 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 29 9.3% 5 17.2% 2 10.6 13.8
EXACT PE 6 1.9% 0 0.0% 2 4.3 4.5
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 39 14.3% 19 48.7% 2 7.0 12.4
Single 233 85.7% 98 42.1% 3 98.7 521.0
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 8:26
Average session length (minutes:seconds) 11:42
Longest session recorded (minutes:seconds) 39:55
Average number of searches completed per session 1.0
Retrievals per search - median 1.0
Retrievals per search - average 3.6
Retrievals per search - standard deviation 5.3
Percent of searches completed with 0 results 44.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 58 22.9%
DISPLAY (excluding automatic displays) 103 40.7%
HELP 9 3.6%
EXPLAIN 9 3.6%
SET/RESET 52 20.6%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 1 0.4%
LOGON or LOGOFF 16 6.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 45.9%
SHORT 8.3%
LONG 29.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 1.8%
COMMENTS 0.0%
Other 14.7%
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 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 56 96.6% 24 42.9% 5 6.5 5.7
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 1 1.7% 1 100% 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 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 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 1 1.7% 0 0.0% 7 7.0 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 58 100% 25 43.1% 5 6.5 5.7
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:30
Average session length (minutes:seconds) 17:11
Longest session recorded (minutes:seconds) 159:27
Average number of searches completed per session 4.9
Retrievals per search - median 2.0
Retrievals per search - average 89.3
Retrievals per search - standard deviation 706.4
Percent of searches completed with 0 results 31.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1,168 51.2%
DISPLAY (excluding automatic displays) 521 22.8%
HELP 29 1.3%
EXPLAIN 29 1.3%
SET/RESET 116 5.1%
SHOW 5 0.2%
ADD ON (AND, OR, AND NOT) 62 2.7%
LOGON or LOGOFF 289 12.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 61 2.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.8%
SHORT 87.1%
LONG 4.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 2.8%
COMMENTS 0.0%
Other 2.5%
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 184 14.7% 61 33.1% 22 492.5 1463.3
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 545 43.4% 213 39.1% 1 83.1 980.1
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 65 5.2% 17 26.2% 21 187.3 477.4
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 7 0.6% 2 28.6% 4 5.6 5.6
EXACT PE 18 1.4% 3 16.7% 2 6.3 14.5
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 436 34.7% 98 22.5% 15 59.8 149.6
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 87 7.4% 22 25.3% 25 132.4 359.5
Single 1,081 92.6% 350 32.4% 5 137.2 906.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 3:20
Average session length (minutes:seconds) 7:51
Longest session recorded (minutes:seconds) 27:13
Average number of searches completed per session 2.7
Retrievals per search - median 5.0
Retrievals per search - average 271.5
Retrievals per search - standard deviation 1170.0
Percent of searches completed with 0 results 26.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 41 29.3%
DISPLAY (excluding automatic displays) 47 33.6%
HELP 1 0.7%
EXPLAIN 22 15.7%
SET/RESET 3 2.1%
SHOW 4 2.9%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 21 15.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 0.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 22.6%
SHORT 43.4%
LONG 26.4%
TAGS 0.0%
FIELDS 1.9%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 5.7%
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 15 35.7% 4 26.7% 10 9.4 4.5
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 4 9.5% 2 50.0% 2 1.5 0.7
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 17 40.5% 3 17.6% 57 787.4 1943.3
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 7.1% 2 66.7% 2 2.0 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 1 2.4% 0 0.0% 4 4.0 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 2 4.8% 0 0.0% 1 1.0 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 2.4% 0 0.0% 8 8.0 0.0
Single 40 97.6% 11 27.5% 9 383.5 1382.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.6%
Ten most frequent errors:
1. NS command - no next screen 29.6%
2. First word of command is invalid 23.4%
3. DISPLAY command contains invalid word 6.7%
4. FIND command with invalid index name 6.7%
5. Z39.50 host cannot process command 5.5%
6. Too many truncated words to process 4.9%
7. DISPLAY command - no FIND results 2.6%
8. Index invalid in current database 2.1%
9. PS command - no previous screen 1.9%
10. Max. # of ports to a Z39 db are in use 1.6%
11. All others 15.0%
Ten most frequent EXPLAIN requests:
1. INDEXES (WCAT DB) 12.3%
2. LOCATE (Z39.50 DBS) 11.6%
3. GUIDE (ART DB) 11.0%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 9.0%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 6.5%
6. LOCATE (Z39.50 DBS) 5.8%
7. Unrecognized term-reminders off 5.2%
8. Unrecognized term 5.2%
9. FIND (Z39.50 DBS) 4.5%
10. INDEXES (PROC DB) 3.9%
11. All others 25.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.3%
2. First word of command is invalid 19.9%
3. FIND command with invalid index name 9.6%
4. DISPLAY command-complete in one screen 6.8%
5. FIND command with zero results 5.3%
6. DISPLAY command-first of >1 screen 5.3%
7. F/BR with index invalid in current DB 4.6%
8. DISPLAY command-record numbers too large 4.3%
9. DISPLAY command - last of >1 screen 3.9%
10. FIND command retrieves 1 book 1.8%
11. All others 12.1%
Ten most frequent SHOW requests:
1. HISTORY 73.2%
2. SEARCH 8.9%
3. GLOSSARY 5.4%
4. TIMEOUT SETTING 3.6%
5. Z39.50 NEWS 1.8%
6. SETTINGS (Z39.50 DBS) 1.8%
7. T800 1.8%
8. OCLC/RLG STATISTICS DIRECTORY 1.8%
9. 1620 1.8%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)