MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/17/01 through 03/23/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 100 545 645
Davis 191 45 236
Irvine 115 0 115
Los Angeles 5 128 133
Riverside 135 12 147
San Diego 75 15 90
San Francisco 33 0 33
Santa Barbara 53 25 78
Santa Cruz 37 14 51
Other - UC 0 27 27
Other-Network UC n/a 1,588 1,588
_______ ______ _____
744 2,399 3,143
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 10 100 361
2-4 a.m. 4 31 161
4-6 a.m. 6 17 129
6-8 a.m. 50 145 1,663
8-10 a.m. 437 1,572 14,353
10-12 a.m. 613 2,161 18,399
12-2 p.m. 523 1,624 13,057
2-4 p.m. 650 2,173 19,541
4-6 p.m. 493 1,884 16,587
6-8 p.m. 188 1,270 12,705
8-10 p.m. 133 1,303 11,298
10-12 p.m. 36 369 2,735
__________ __________ __________ _________________
Total: 3,143 12,649 110,989
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 344 1,927 2,271
Davis 616 78 694
Irvine 592 0 592
Los Angeles 14 392 406
Riverside 560 71 631
San Diego 155 26 181
San Francisco 132 0 132
Santa Barbara 129 85 214
Santa Cruz 96 68 164
Other - UC 0 84 84
Other-Network UC n/a 7,280 7,280
_______ ______ _____
2,638 10,011 12,649
Number of FIND commands by database
WorldCat 11,275
Art Index 96
ArticleFirst 173
ContentsFirst 7
ERIC 0
GPO 0
PapersFirst Index 257
ProceedingsFirst Index 23
SocAbstracts 0
PAIS International 0
MLA Bibliography 767
RILM Index 51
Total number of FIND commands 12,649
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,335 18,049 20,384
Davis 5,634 513 6,147
Irvine 2,965 0 2,965
Los Angeles 354 4,655 5,009
Riverside 7,912 191 8,103
San Diego 1,067 193 1,260
San Francisco 948 0 948
Santa Barbara 1,400 742 2,142
Santa Cruz 778 221 999
Other - UC 0 575 575
Other-Network UC n/a 62,457 62,457
_______ ______ _____
23,393 87,596 110,989
Number of Records Displayed by database
WorldCat 102,424
Art Index 709
ArticleFirst 1,116
ContentsFirst 59
ERIC 0
GPO 0
PapersFirst Index 719
ProceedingsFirst Index 174
SocAbstracts 0
PAIS International 0
MLA Bibliography 5,411
RILM Index 377
Total number of Records Displayed 110,989
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,614 83.2%
Art Index 39 1.2%
ArticleFirst 105 3.3%
ContentsFirst 8 0.3%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 144 4.6%
ProceedingsFirst Index 21 0.7%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 189 6.0%
RILM Index 23 0.7%
Percent of searches done in the WCAT database 89.1%
Percent of searches done in the ART database 0.8%
Percent of searches done in the JRNL database 1.4%
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 2.0%
Percent of searches done in the PROC database 0.2%
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 6.1%
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 0.6
Standard deviation in seconds 1.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.9
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:49
Average session length (minutes:seconds) 22:45
Longest session recorded (minutes:seconds) 411:17
Average number of searches completed per session 4.3
Retrievals per search - median 2.0
Retrievals per search - average 269.2
Retrievals per search - standard deviation 6945.6
Percent of searches completed with 0 results 25.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10,437 34.7%
DISPLAY (excluding automatic displays) 14,482 48.1%
HELP 35 0.1%
EXPLAIN 69 0.2%
SET/RESET 1,832 6.1%
SHOW 67 0.2%
ADD ON (AND, OR, AND NOT) 838 2.8%
LOGON or LOGOFF 1,930 6.4%
COMMENT 0 0.0%
USE 12 0.0%
OTHER 410 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.8%
SHORT 35.6%
LONG 6.6%
TAGS 0.5%
FIELDS 7.9%
PERIODICALS 31.8%
COMMENTS 0.0%
Other 8.8%
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 1,201 10.9% 338 28.1% 3 42.7 398.3
SUBJECT 227 2.1% 41 18.1% 49 1734.0 7582.4
EXACT SUBJECT 9 0.1% 2 22.2% 4 9380.9 24646.1
SERIES 160 1.5% 51 31.9% 15 655.7 4555.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 26 0.2% 6 23.1% 30 56.9 61.9
LANGUAGE 8 0.1% 1 12.5% 310 408.9 384.8
FORM 114 1.0% 21 18.4% 11 69.4 139.3
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 14 0.1% 3 21.4% 206 15094.5 47028.0
ACCESSION NUMBER 209 1.9% 12 5.7% 1 1.0 0.0
PLACE OF PUBL. 6 0.1% 3 50.0% 56 216.3 326.5
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 597 5.4% 154 25.8% 2 6.0 35.5
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 3,000 27.3% 885 29.5% 4 97.9 1474.0
EXACT PE 247 2.2% 41 16.6% 7 28.9 64.3
RPE 1 0.0% 0 0.0% 1 1.0 0.0
XRP 189 1.7% 34 18.0% 6 130.0 634.9
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,986 45.4% 1,301 26.1% 9 577.3 11600.8
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 529 5.1% 141 26.7% 6 85.0 419.6
Single 9,898 94.9% 2,605 26.3% 5 407.2 8628.2
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:13
Average session length (minutes:seconds) 8:38
Longest session recorded (minutes:seconds) 40:14
Average number of searches completed per session 2.5
Retrievals per search - median 2.0
Retrievals per search - average 1674.9
Retrievals per search - standard deviation 7899.0
Percent of searches completed with 0 results 37.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 92 32.7%
DISPLAY (excluding automatic displays) 78 27.8%
HELP 19 6.8%
EXPLAIN 9 3.2%
SET/RESET 16 5.7%
SHOW 4 1.4%
ADD ON (AND, OR, AND NOT) 4 1.4%
LOGON or LOGOFF 49 17.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.1%
SHORT 85.9%
LONG 2.0%
TAGS 0.0%
FIELDS 1.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 5.1%
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 17 18.5% 7 41.2% 3 13.9 22.3
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 39 42.4% 14 35.9% 27 60.4 122.2
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 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 1 1.1% 0 0.0% 105 105.0 0.0
Other indexes 35 38.0% 14 40.0% 80 7571.4 15799.5
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 92 100% 35 38.0% 27 2820.2 10127.3
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:04
Average session length (minutes:seconds) 14:04
Longest session recorded (minutes:seconds) 75:14
Average number of searches completed per session 1.6
Retrievals per search - median 2.0
Retrievals per search - average 213.6
Retrievals per search - standard deviation 1645.4
Percent of searches completed with 0 results 36.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 159 37.5%
DISPLAY (excluding automatic displays) 115 27.1%
HELP 4 0.9%
EXPLAIN 4 0.9%
SET/RESET 98 23.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 14 3.3%
LOGON or LOGOFF 21 5.0%
COMMENT 0 0.0%
USE 1 0.2%
OTHER 8 1.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 20.4%
SHORT 52.4%
LONG 2.7%
TAGS 0.0%
FIELDS 1.4%
PERIODICALS 23.1%
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 101 56.7% 48 47.5% 6 362.8 2306.0
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 5 2.8% 0 0.0% 33 2769.0 6087.4
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 17 9.6% 4 23.5% 4 33.5 68.3
EXACT PE 2 1.1% 0 0.0% 339 338.5 449.0
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 53 29.8% 19 35.8% 3 76.8 291.8
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 17 10.7% 11 64.7% 2 2.3 1.5
Single 142 89.3% 48 33.8% 7 391.2 2222.0
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 21:25
Average session length (minutes:seconds) 19:42
Longest session recorded (minutes:seconds) 32:43
Average number of searches completed per session 0.9
Retrievals per search - median 23.0
Retrievals per search - average 45.6
Retrievals per search - standard deviation 58.0
Percent of searches completed with 0 results 42.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7 25.0%
DISPLAY (excluding automatic displays) 3 10.7%
HELP 2 7.1%
EXPLAIN 2 7.1%
SET/RESET 8 28.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 14.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 7.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 100%
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 3 42.9% 1 33.3% 69 68.5 64.3
EXACT JOURNAL 2 28.6% 1 50.0% 139 139.0 0.0
KEYWORD 2 28.6% 1 50.0% 43 43.0 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% 79 79.8 55.5
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 11:45
Average session length (minutes:seconds) 22:04
Longest session recorded (minutes:seconds) 103:25
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 81.9
Retrievals per search - standard deviation 657.1
Percent of searches completed with 0 results 43.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 238 39.4%
DISPLAY (excluding automatic displays) 157 26.0%
HELP 4 0.7%
EXPLAIN 6 1.0%
SET/RESET 131 21.7%
SHOW 2 0.3%
ADD ON (AND, OR, AND NOT) 19 3.1%
LOGON or LOGOFF 36 6.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 14.3%
SHORT 41.8%
LONG 1.6%
TAGS 0.5%
FIELDS 3.2%
PERIODICALS 34.4%
COMMENTS 0.0%
Other 4.2%
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 87 30.7% 38 43.7% 8 27.4 41.5
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 2 0.7% 1 50.0% 1,816 1816.0 0.0
TITLE WORD 109 38.5% 68 62.4% 4 264.0 1563.0
EXACT TITLE 1 0.4% 0 0.0% 10 10.0 0.0
KEYWORD 9 3.2% 5 55.6% 19 124.0 218.9
CONFERENCE 10 3.5% 3 30.0% 541 765.4 760.0
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 1.1% 3 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 20 7.1% 14 70.0% 50 95.0 116.5
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 28 9.9% 4 14.3% 3 39.5 136.9
EXACT PE 14 4.9% 0 0.0% 5 12.9 16.6
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 43 18.1% 30 69.8% 5 45.8 89.0
Single 195 81.9% 74 37.9% 7 168.2 951.7
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 12:01
Average session length (minutes:seconds) 11:52
Longest session recorded (minutes:seconds) 28:26
Average number of searches completed per session 1.1
Retrievals per search - median 2.0
Retrievals per search - average 11.9
Retrievals per search - standard deviation 28.0
Percent of searches completed with 0 results 43.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 23 24.7%
DISPLAY (excluding automatic displays) 30 32.3%
HELP 3 3.2%
EXPLAIN 11 11.8%
SET/RESET 12 12.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 14 15.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 56.7%
SHORT 20.0%
LONG 6.7%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 16.7%
COMMENTS 0.0%
Other 0.0%
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 4 16.7% 1 25.0% 2 16.7 25.4
CONFERENCE 15 62.5% 7 46.7% 13 26.6 42.5
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 12.5% 2 66.7% 6 6.0 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 1 4.2% 0 0.0% 8 8.0 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 4.2% 0 0.0% 5 5.0 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 1 4.3% 0 0.0% 8 8.0 0.0
Single 22 95.6% 10 45.5% 7 22.2 36.3
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:21
Average session length (minutes:seconds) 8:36
Longest session recorded (minutes:seconds) 74:36
Average number of searches completed per session 4.1
Retrievals per search - median 2.0
Retrievals per search - average 66.8
Retrievals per search - standard deviation 305.9
Percent of searches completed with 0 results 34.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 733 45.6%
DISPLAY (excluding automatic displays) 388 24.1%
HELP 34 2.1%
EXPLAIN 34 2.1%
SET/RESET 64 4.0%
SHOW 4 0.2%
ADD ON (AND, OR, AND NOT) 34 2.1%
LOGON or LOGOFF 261 16.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 55 3.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.6%
SHORT 87.9%
LONG 4.7%
TAGS 0.2%
FIELDS 1.3%
PERIODICALS 1.7%
COMMENTS 0.0%
Other 0.6%
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 118 15.4% 32 27.1% 11 125.4 346.9
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 141 18.5% 51 36.2% 8 124.7 457.9
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 95 12.4% 33 34.7% 18 191.8 488.8
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 5 0.7% 1 20.0% 9 13.3 15.4
EXACT PE 1 0.1% 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 404 52.9% 143 35.4% 6 72.6 325.8
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 31 4.2% 14 45.2% 4 102.7 369.3
Single 702 95.8% 232 33.0% 8 105.1 379.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:33
Average session length (minutes:seconds) 6:24
Longest session recorded (minutes:seconds) 13:25
Average number of searches completed per session 2.2
Retrievals per search - median 3.0
Retrievals per search - average 320.6
Retrievals per search - standard deviation 1338.9
Percent of searches completed with 0 results 29.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 48 33.8%
DISPLAY (excluding automatic displays) 49 34.5%
HELP 1 0.7%
EXPLAIN 1 0.7%
SET/RESET 10 7.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 2.1%
LOGON or LOGOFF 26 18.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.5%
SHORT 89.8%
LONG 0.0%
TAGS 0.0%
FIELDS 1.7%
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 12 24.5% 4 33.3% 9 20.0 22.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 6 12.2% 1 16.7% 19 33.4 35.9
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 14 28.6% 3 21.4% 40 1426.9 2691.3
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 17 34.7% 6 35.3% 3 25.8 41.1
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 1 2.1% 0 0.0% 2 2.0 0.0
Single 47 97.9% 14 29.8% 10 494.0 1647.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.0%
Ten most frequent errors:
1. NS command - no next screen 32.9%
2. First word of command is invalid 20.0%
3. Z39.50 host cannot process command 10.6%
4. FIND command with invalid index name 6.2%
5. Too many truncated words to process 6.0%
6. DISPLAY command contains invalid word 4.7%
7. DISPLAY command - no FIND results 2.0%
8. Search term missing from search command 1.8%
9. Valid command at an inappropriate time 1.6%
10. Index invalid in current database 1.4%
11. All others 12.9%
Ten most frequent EXPLAIN requests:
1. INDEXES (WCAT DB) 15.4%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 14.0%
3. LOCATE (Z39.50 DBS) 12.5%
4. FIND (Z39.50 DBS) 6.6%
5. G985 5.9%
6. Unrecognized term-reminders off 5.1%
7. LOCATE (Z39.50 DBS) 4.4%
8. INDEXES (PROC DB) 4.4%
9. GUIDE (Z39.50 A&I DBS w/o truncation) 3.7%
10. Unrecognized term 3.7%
11. All others 24.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.7%
2. First word of command is invalid 19.7%
3. FIND command with zero results 5.9%
4. DISPLAY command-complete in one screen 5.9%
5. DISPLAY command-first of >1 screen 5.9%
6. FIND command with invalid index name 4.2%
7. F/BR with index invalid in current DB 3.8%
8. NS command - no next screen 2.9%
9. DISPLAY command - last of >1 screen 2.9%
10. DISPLAY command - middle of >1 screen 2.5%
11. All others 15.5%
Ten most frequent SHOW requests:
1. HISTORY 68.8%
2. GLOSSARY 6.5%
3. SEARCH 6.5%
4. SETTINGS (Z39.50 DBS) 5.2%
5. LOCAL INFORMATION 2.6%
6. LIBRARY LOCATIONS 2.6%
7. L002 1.3%
8. UCLA INFORMATION 1.3%
9. LIBRARY SETTINGS 1.3%
11. All others 3.9%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)