MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 04/14/01 through 04/20/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 130 508 638
Davis 290 85 375
Irvine 73 0 73
Los Angeles 5 124 129
Riverside 130 0 130
San Diego 73 21 94
San Francisco 21 0 21
Santa Barbara 36 12 48
Santa Cruz 27 18 45
Other - UC 0 30 30
Other-Network UC n/a 1,369 1,369
_______ ______ _____
785 2,167 2,952
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 15 141 1,224
2-4 a.m. 0 0 0
4-6 a.m. 8 14 20
6-8 a.m. 25 92 842
8-10 a.m. 322 1,020 10,006
10-12 a.m. 599 2,153 16,551
12-2 p.m. 535 1,723 13,149
2-4 p.m. 659 2,136 18,634
4-6 p.m. 486 1,700 18,706
6-8 p.m. 162 900 9,761
8-10 p.m. 93 758 7,365
10-12 p.m. 48 747 5,451
__________ __________ __________ _________________
Total: 2,952 11,384 101,709
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 415 1,887 2,302
Davis 761 287 1,048
Irvine 212 0 212
Los Angeles 5 289 294
Riverside 622 0 622
San Diego 195 46 241
San Francisco 133 0 133
Santa Barbara 97 53 150
Santa Cruz 129 67 196
Other - UC 0 60 60
Other-Network UC n/a 6,126 6,126
_______ ______ _____
2,569 8,815 11,384
Number of FIND commands by database
WorldCat 9,977
Art Index 95
ArticleFirst 383
ContentsFirst 8
ERIC 0
GPO 0
PapersFirst Index 255
ProceedingsFirst Index 40
SocAbstracts 0
PAIS International 0
MLA Bibliography 599
RILM Index 27
Total number of FIND commands 11,384
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,211 19,030 21,241
Davis 11,780 1,599 13,379
Irvine 1,372 0 1,372
Los Angeles 67 3,697 3,764
Riverside 6,629 0 6,629
San Diego 1,121 394 1,515
San Francisco 943 0 943
Santa Barbara 1,013 370 1,383
Santa Cruz 669 643 1,312
Other - UC 0 558 558
Other-Network UC n/a 49,613 49,613
_______ ______ _____
25,805 75,904 101,709
Number of Records Displayed by database
WorldCat 92,577
Art Index 844
ArticleFirst 1,681
ContentsFirst 113
ERIC 0
GPO 0
PapersFirst Index 815
ProceedingsFirst Index 242
SocAbstracts 0
PAIS International 0
MLA Bibliography 5,293
RILM Index 144
Total number of Records Displayed 101,709
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,340 79.3%
Art Index 46 1.6%
ArticleFirst 196 6.6%
ContentsFirst 16 0.5%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 138 4.7%
ProceedingsFirst Index 27 0.9%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 177 6.0%
RILM Index 12 0.4%
Percent of searches done in the WCAT database 87.6%
Percent of searches done in the ART database 0.8%
Percent of searches done in the JRNL database 3.4%
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 2.2%
Percent of searches done in the PROC database 0.4%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.0%
Percent of searches done in the MLA database 5.3%
Percent of searches done in the RILM database 0.2%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 1.8
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.8
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 15:00
Average session length (minutes:seconds) 24:29
Longest session recorded (minutes:seconds) 328:41
Average number of searches completed per session 4.3
Retrievals per search - median 2.0
Retrievals per search - average 247.5
Retrievals per search - standard deviation 5778.1
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8,964 32.9%
DISPLAY (excluding automatic displays) 13,341 48.9%
HELP 28 0.1%
EXPLAIN 70 0.3%
SET/RESET 1,598 5.9%
SHOW 39 0.1%
ADD ON (AND, OR, AND NOT) 1,013 3.7%
LOGON or LOGOFF 1,834 6.7%
COMMENT 0 0.0%
USE 14 0.1%
OTHER 374 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.1%
SHORT 37.7%
LONG 9.2%
TAGS 0.2%
FIELDS 7.2%
PERIODICALS 25.6%
COMMENTS 0.0%
Other 11.0%
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 815 8.6% 163 20.0% 3 31.0 105.6
SUBJECT 276 2.9% 41 14.9% 90 2510.1 16688.9
EXACT SUBJECT 4 0.0% 1 25.0% 213 143.0 121.2
SERIES 154 1.6% 56 36.4% 6 186.6 768.5
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 2 0.0% 0 0.0% 41 41.0 5.7
LANGUAGE 24 0.3% 5 20.8% 6,994 4465.2 3406.5
FORM 125 1.3% 17 13.6% 9 79.5 264.6
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 1 0.0% 1 100% 0 0.0 0.0
NOTES 13 0.1% 6 46.2% 194 142.4 87.6
ACCESSION NUMBER 191 2.0% 10 5.2% 1 1.0 0.0
PLACE OF PUBL. 15 0.2% 3 20.0% 51 3519.4 11679.0
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 6 0.1% 5 83.3% 2 2.0 0.0
ISBN/ISSN/LCCN 609 6.4% 131 21.5% 1 4.8 21.5
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,395 25.1% 819 34.2% 5 64.4 426.3
EXACT PE 107 1.1% 14 13.1% 5 79.5 486.8
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 193 2.0% 34 17.6% 10 79.3 364.6
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,596 48.2% 1,138 24.8% 9 448.6 8730.0
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 537 6.0% 118 22.0% 8 259.2 1188.0
Single 8,419 94.0% 2,198 26.1% 5 357.3 7299.7
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:07
Average session length (minutes:seconds) 6:27
Longest session recorded (minutes:seconds) 25:24
Average number of searches completed per session 2.1
Retrievals per search - median 2.0
Retrievals per search - average 47.8
Retrievals per search - standard deviation 190.7
Percent of searches completed with 0 results 40.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 91 28.7%
DISPLAY (excluding automatic displays) 74 23.3%
HELP 25 7.9%
EXPLAIN 25 7.9%
SET/RESET 12 3.8%
SHOW 1 0.3%
ADD ON (AND, OR, AND NOT) 4 1.3%
LOGON or LOGOFF 69 21.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 16 5.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.1%
SHORT 80.7%
LONG 8.0%
TAGS 0.0%
FIELDS 1.1%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.1%
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 14 15.2% 7 50.0% 3 16.0 20.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CORPORATE 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 33 35.9% 9 27.3% 44 79.1 92.1
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 45 48.9% 22 48.9% 12 99.5 369.6
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 1 1.1% 0 0.0% 1 1.0 0.0
Single 90 98.9% 38 42.2% 24 82.6 251.6
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:43
Average session length (minutes:seconds) 14:09
Longest session recorded (minutes:seconds) 78:12
Average number of searches completed per session 2.0
Retrievals per search - median 3.0
Retrievals per search - average 125.6
Retrievals per search - standard deviation 642.7
Percent of searches completed with 0 results 30.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 340 39.4%
DISPLAY (excluding automatic displays) 219 25.4%
HELP 5 0.6%
EXPLAIN 3 0.3%
SET/RESET 152 17.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 43 5.0%
LOGON or LOGOFF 92 10.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 0.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 59.1%
LONG 3.4%
TAGS 0.0%
FIELDS 1.1%
PERIODICALS 26.5%
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 181 47.0% 70 38.7% 10 110.7 342.1
EXACT TITLE 2 0.5% 2 100% 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 3 0.8% 1 33.3% 7 7.0 5.7
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 34 8.8% 8 23.5% 4 31.1 93.0
EXACT PE 13 3.4% 1 7.7% 2 10.2 17.6
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 152 39.5% 41 27.0% 21 329.8 1120.9
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 45 13.2% 23 51.1% 13 95.8 189.1
Single 295 86.8% 77 26.1% 13 209.3 840.5
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 7:05
Average session length (minutes:seconds) 7:05
Longest session recorded (minutes:seconds) 7:05
Average number of searches completed per session 0.5
Retrievals per search - median 28.0
Retrievals per search - average 60.5
Retrievals per search - standard deviation 75.6
Percent of searches completed with 0 results 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8 18.2%
DISPLAY (excluding automatic displays) 11 25.0%
HELP 4 9.1%
EXPLAIN 3 6.8%
SET/RESET 14 31.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 6.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 72.7%
SHORT 0.0%
LONG 27.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
ContentsFirst Database Statistics continued:
____________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
JOURNAL 6 75.0% 3 50.0% 114 123.7 73.0
EXACT JOURNAL 2 25.0% 1 50.0% 113 113.0 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 8 100% 4 50.0% 114 121.0 59.8
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:45
Average session length (minutes:seconds) 19:45
Longest session recorded (minutes:seconds) 86:02
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 37.0
Retrievals per search - standard deviation 212.7
Percent of searches completed with 0 results 47.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 245 40.8%
DISPLAY (excluding automatic displays) 167 27.8%
HELP 5 0.8%
EXPLAIN 7 1.2%
SET/RESET 128 21.3%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 10 1.7%
LOGON or LOGOFF 29 4.8%
COMMENT 0 0.0%
USE 1 0.2%
OTHER 7 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 14.8%
SHORT 43.5%
LONG 3.8%
TAGS 0.0%
FIELDS 7.2%
PERIODICALS 22.0%
COMMENTS 0.0%
Other 8.6%
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 119 38.5% 56 47.1% 6 51.7 179.1
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 129 41.7% 84 65.1% 2 54.6 233.8
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 11 3.6% 5 45.5% 65 526.7 1034.4
CONFERENCE 2 0.6% 1 50.0% 356 356.0 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 0.3% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 11 3.6% 4 36.4% 19 47.4 62.5
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 30 9.7% 3 10.0% 3 6.5 11.5
EXACT PE 6 1.9% 0 0.0% 8 9.7 8.8
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 62 25.3% 37 59.7% 2 15.4 37.4
Single 183 74.7% 78 42.6% 6 86.0 325.6
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 14:09
Average session length (minutes:seconds) 20:42
Longest session recorded (minutes:seconds) 50:53
Average number of searches completed per session 1.5
Retrievals per search - median 1.0
Retrievals per search - average 6.5
Retrievals per search - standard deviation 19.4
Percent of searches completed with 0 results 42.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 39 32.0%
DISPLAY (excluding automatic displays) 35 28.7%
HELP 5 4.1%
EXPLAIN 5 4.1%
SET/RESET 16 13.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 19 15.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 54.3%
SHORT 23.9%
LONG 8.7%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 13.0%
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 2 4.5% 2 100% 0 0.0 0.0
SPONSOR 2 4.5% 1 50.0% 1 1.0 0.0
KEYWORD 5 11.4% 3 60.0% 8 8.0 9.9
CONFERENCE 29 65.9% 10 34.5% 3 12.5 27.0
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 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 5 11.4% 1 20.0% 1 1.5 1.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 2.3% 1 100% 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 5 12.8% 1 20.0% 1 1.5 1.0
Single 34 87.2% 16 47.1% 4 13.8 27.5
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:33
Average session length (minutes:seconds) 9:32
Longest session recorded (minutes:seconds) 65:35
Average number of searches completed per session 3.4
Retrievals per search - median 3.0
Retrievals per search - average 150.9
Retrievals per search - standard deviation 793.7
Percent of searches completed with 0 results 32.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 580 40.8%
DISPLAY (excluding automatic displays) 396 27.8%
HELP 38 2.7%
EXPLAIN 42 3.0%
SET/RESET 79 5.6%
SHOW 5 0.4%
ADD ON (AND, OR, AND NOT) 19 1.3%
LOGON or LOGOFF 219 15.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 45 3.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.5%
SHORT 79.3%
LONG 8.5%
TAGS 1.0%
FIELDS 1.0%
PERIODICALS 0.8%
COMMENTS 0.0%
Other 1.0%
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 188 32.2% 59 31.4% 15 403.6 1365.5
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 191 32.7% 72 37.7% 6 144.3 859.5
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 40 6.8% 13 32.5% 26 307.3 871.9
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2 0.3% 2 100% 0 0.0 0.0
EXACT PE 1 0.2% 0 0.0% 2 2.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 162 27.7% 46 28.4% 6 76.2 278.6
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 5 0.9% 1 20.0% 3 471.0 938.0
Single 574 99.1% 190 33.1% 8 215.1 964.6
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:01
Average session length (minutes:seconds) 2:50
Longest session recorded (minutes:seconds) 12:21
Average number of searches completed per session 2.3
Retrievals per search - median 1.0
Retrievals per search - average 299.0
Retrievals per search - standard deviation 1400.9
Percent of searches completed with 0 results 25.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 27 28.4%
DISPLAY (excluding automatic displays) 30 31.6%
HELP 1 1.1%
EXPLAIN 5 5.3%
SET/RESET 5 5.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 19 20.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 8.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.1%
SHORT 87.2%
LONG 7.7%
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 12 42.9% 3 25.0% 9 74.1 132.7
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 4 14.3% 2 50.0% 3 3.0 2.8
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 32.1% 0 0.0% 1 816.7 2430.2
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 10.7% 2 66.7% 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 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 3.7% 0 0.0% 1 1.0 0.0
Single 26 96.3% 7 26.9% 6 424.8 1666.9
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 32.3%
2. First word of command is invalid 17.6%
3. Z39.50 host cannot process command 14.4%
4. FIND command with invalid index name 7.3%
5. DISPLAY command contains invalid word 5.4%
6. Too many truncated words to process 4.3%
7. 945 1.9%
8. DISPLAY command - no FIND results 1.7%
9. Index invalid in current database 1.7%
10. Search term missing from search command 1.4%
11. All others 12.0%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 15.0%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 11.9%
3. INDEXES (WCAT DB) 10.6%
4. GUIDE (ART DB) 6.9%
5. Unrecognized term-reminders off 6.9%
6. FIND (Z39.50 DBS) 6.3%
7. GUIDE (Z39.50 A&I DBS w/o truncation) 5.6%
8. LOCATE (Z39.50 DBS) 5.0%
9. DISPLAY (Z39.50 non-A&I DBS) 3.8%
10. Unrecognized term 3.1%
11. All others 25.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.7%
2. First word of command is invalid 16.6%
3. FIND command with invalid index name 8.1%
4. F/BR with index invalid in current DB 7.0%
5. DISPLAY command-complete in one screen 5.9%
6. DISPLAY command - middle of >1 screen 5.9%
7. DISPLAY command - last of >1 screen 5.2%
8. FIND command with zero results 4.8%
9. DISPLAY command-first of >1 screen 4.4%
10. FIND command retrieves >1 book 2.2%
11. All others 15.1%
Ten most frequent SHOW requests:
1. HISTORY 73.9%
2. SEARCH 10.9%
3. GLOSSARY 8.7%
4. SYSTEM NEWS 2.2%
5. LIBRARY SETTINGS 2.2%
6. DLA BULLETIN 2.2%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)