MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/24/01 through 03/30/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 89 381 470
Davis 181 31 212
Irvine 202 0 202
Los Angeles 1 97 98
Riverside 115 9 124
San Diego 55 22 77
San Francisco 38 0 38
Santa Barbara 37 23 60
Santa Cruz 25 15 40
Other - UC 1 18 19
Other-Network UC n/a 1,708 1,708
_______ ______ _____
744 2,304 3,048
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 11 68 298
2-4 a.m. 1 5 37
4-6 a.m. 4 7 14
6-8 a.m. 38 119 1,233
8-10 a.m. 387 1,228 9,822
10-12 a.m. 589 1,907 14,010
12-2 p.m. 475 1,541 10,179
2-4 p.m. 654 2,253 17,731
4-6 p.m. 527 2,217 17,233
6-8 p.m. 178 1,093 9,147
8-10 p.m. 113 824 4,510
10-12 p.m. 71 733 4,365
__________ __________ __________ _________________
Total: 3,048 11,995 88,579
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 233 1,238 1,471
Davis 547 106 653
Irvine 1,228 0 1,228
Los Angeles 5 232 237
Riverside 407 33 440
San Diego 186 59 245
San Francisco 99 0 99
Santa Barbara 123 63 186
Santa Cruz 48 77 125
Other - UC 1 43 44
Other-Network UC n/a 7,267 7,267
_______ ______ _____
2,877 9,118 11,995
Number of FIND commands by database
WorldCat 10,107
Art Index 87
ArticleFirst 465
ContentsFirst 16
ERIC 0
GPO 0
PapersFirst Index 289
ProceedingsFirst Index 26
SocAbstracts 0
PAIS International 0
MLA Bibliography 969
RILM Index 36
Total number of FIND commands 11,995
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,904 12,964 14,868
Davis 4,099 556 4,655
Irvine 4,204 0 4,204
Los Angeles 19 1,855 1,874
Riverside 4,724 429 5,153
San Diego 1,371 887 2,258
San Francisco 1,066 0 1,066
Santa Barbara 1,046 301 1,347
Santa Cruz 457 438 895
Other - UC 1 320 321
Other-Network UC n/a 51,938 51,938
_______ ______ _____
18,891 69,688 88,579
Number of Records Displayed by database
WorldCat 80,025
Art Index 254
ArticleFirst 2,188
ContentsFirst 160
ERIC 0
GPO 0
PapersFirst Index 1,322
ProceedingsFirst Index 66
SocAbstracts 0
PAIS International 0
MLA Bibliography 4,282
RILM Index 282
Total number of Records Displayed 88,579
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,456 80.6%
Art Index 25 0.8%
ArticleFirst 167 5.5%
ContentsFirst 34 1.1%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 163 5.3%
ProceedingsFirst Index 22 0.7%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 168 5.5%
RILM Index 13 0.4%
Percent of searches done in the WCAT database 84.3%
Percent of searches done in the ART database 0.7%
Percent of searches done in the JRNL database 3.9%
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 2.4%
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 8.1%
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 0.9
Standard deviation in seconds 2.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:23
Average session length (minutes:seconds) 21:54
Longest session recorded (minutes:seconds) 355:29
Average number of searches completed per session 4.1
Retrievals per search - median 2.0
Retrievals per search - average 604.3
Retrievals per search - standard deviation 34848
Percent of searches completed with 0 results 26.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,293 35.0%
DISPLAY (excluding automatic displays) 12,456 46.9%
HELP 42 0.2%
EXPLAIN 63 0.2%
SET/RESET 1,689 6.4%
SHOW 37 0.1%
ADD ON (AND, OR, AND NOT) 814 3.1%
LOGON or LOGOFF 1,841 6.9%
COMMENT 0 0.0%
USE 10 0.0%
OTHER 326 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 36.5%
LONG 7.2%
TAGS 0.2%
FIELDS 8.5%
PERIODICALS 29.4%
COMMENTS 0.0%
Other 8.4%
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 795 8.1% 193 24.3% 3 54.1 474.5
SUBJECT 245 2.5% 44 18.0% 42 1867.4 13584.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 141 1.4% 39 27.7% 9 236.1 1140.0
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% 7 46.7% 6 119.3 206.4
FORM 112 1.1% 16 14.3% 11 59.0 151.6
MUSIC PUBLISHER 11 0.1% 8 72.7% 82 60.3 52.0
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 29 0.3% 8 27.6% 4 1300.5 5202.9
ACCESSION NUMBER 254 2.6% 16 6.3% 1 1.0 0.0
PLACE OF PUBL. 7 0.1% 1 14.3% 35 4415.8 10491.8
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 10 0.1% 10 100% 0 0.0 0.0
ISBN/ISSN/LCCN 542 5.5% 152 28.0% 1 3.2 6.0
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,493 25.3% 802 32.2% 5 52.5 376.6
EXACT PE 176 1.8% 34 19.3% 7 33.7 132.1
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 182 1.8% 26 14.3% 7 120.3 739.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,835 49.1% 1,219 25.2% 8 1480.7 58120.9
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 548 5.9% 101 18.4% 5 60.9 445.9
Single 8,734 94.1% 2,369 27.1% 5 927.8 43879.5
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:17
Average session length (minutes:seconds) 15:02
Longest session recorded (minutes:seconds) 64:34
Average number of searches completed per session 3.5
Retrievals per search - median 0.0
Retrievals per search - average 90.0
Retrievals per search - standard deviation 620.0
Percent of searches completed with 0 results 62.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 83 48.3%
DISPLAY (excluding automatic displays) 27 15.7%
HELP 11 6.4%
EXPLAIN 7 4.1%
SET/RESET 12 7.0%
SHOW 2 1.2%
ADD ON (AND, OR, AND NOT) 4 2.3%
LOGON or LOGOFF 24 14.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.2%
SHORT 93.3%
LONG 4.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
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 27 32.5% 21 77.8% 8 14.2 17.8
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 10 12.0% 5 50.0% 19 56.4 81.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 46 55.4% 27 58.7% 2 372.0 1312.0
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 83 100% 53 63.9% 4 247.8 1047.5
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:37
Average session length (minutes:seconds) 12:58
Longest session recorded (minutes:seconds) 47:00
Average number of searches completed per session 2.8
Retrievals per search - median 1.0
Retrievals per search - average 344.5
Retrievals per search - standard deviation 5140.0
Percent of searches completed with 0 results 29.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 419 47.7%
DISPLAY (excluding automatic displays) 198 22.5%
HELP 1 0.1%
EXPLAIN 12 1.4%
SET/RESET 119 13.5%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 46 5.2%
LOGON or LOGOFF 73 8.3%
COMMENT 0 0.0%
USE 3 0.3%
OTHER 7 0.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 16.4%
SHORT 60.5%
LONG 1.5%
TAGS 0.0%
FIELDS 3.0%
PERIODICALS 18.5%
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 268 60.4% 100 37.3% 1 706.4 8496.0
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 4 0.9% 1 25.0% 10 10.0 7.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 31 7.0% 2 6.5% 6 38.0 78.2
EXACT PE 3 0.7% 0 0.0% 22 19.0 10.8
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 138 31.1% 36 26.1% 19 373.3 1152.5
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 26 6.2% 11 42.3% 3 12.7 22.0
Single 392 93.8% 117 29.8% 3 573.0 6671.8
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 16:40
Average session length (minutes:seconds) 16:40
Longest session recorded (minutes:seconds) 32:04
Average number of searches completed per session 0.5
Retrievals per search - median 0.0
Retrievals per search - average 39.9
Retrievals per search - standard deviation 64.4
Percent of searches completed with 0 results 62.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 16 27.1%
DISPLAY (excluding automatic displays) 6 10.2%
HELP 1 1.7%
EXPLAIN 0 0.0%
SET/RESET 33 55.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 5.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
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 11 64.7% 7 63.6% 130 118.0 61.0
EXACT JOURNAL 5 29.4% 3 60.0% 83 83.0 83.4
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 1 5.9% 1 100% 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 6.3% 1 100% 0 0.0 0.0
Single 15 93.8% 9 60.0% 127 106.3 62.8
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 17:38
Average session length (minutes:seconds) 37:04
Longest session recorded (minutes:seconds) 260:08
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 64.0
Retrievals per search - standard deviation 442.2
Percent of searches completed with 0 results 45.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 272 39.4%
DISPLAY (excluding automatic displays) 200 29.0%
HELP 5 0.7%
EXPLAIN 5 0.7%
SET/RESET 149 21.6%
SHOW 5 0.7%
ADD ON (AND, OR, AND NOT) 17 2.5%
LOGON or LOGOFF 30 4.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 1.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.6%
SHORT 43.4%
LONG 2.5%
TAGS 0.0%
FIELDS 8.3%
PERIODICALS 28.1%
COMMENTS 0.0%
Other 6.2%
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 98 31.0% 43 43.9% 7 78.7 188.4
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 156 49.4% 89 57.1% 3 175.9 890.0
EXACT TITLE 1 0.3% 1 100% 0 0.0 0.0
KEYWORD 2 0.6% 1 50.0% 10 10.0 0.0
CONFERENCE 1 0.3% 0 0.0% 23 23.0 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 2 0.6% 2 100% 0 0.0 0.0
EXACT JOURNAL 1 0.3% 0 0.0% 14 14.0 0.0
DATE 13 4.1% 6 46.2% 7 25.9 48.9
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 37 11.7% 6 16.2% 8 70.2 157.0
EXACT PE 5 1.6% 0 0.0% 22 20.4 10.7
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 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 15.8% 24 55.8% 2 11.0 30.6
Single 229 84.2% 99 43.2% 8 140.0 652.6
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 5:32
Average session length (minutes:seconds) 6:42
Longest session recorded (minutes:seconds) 17:42
Average number of searches completed per session 1.2
Retrievals per search - median 0.0
Retrievals per search - average 2.2
Retrievals per search - standard deviation 4.5
Percent of searches completed with 0 results 53.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 26 31.3%
DISPLAY (excluding automatic displays) 16 19.3%
HELP 6 7.2%
EXPLAIN 3 3.6%
SET/RESET 15 18.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 15 18.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 2.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 63.2%
SHORT 15.8%
LONG 15.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 5.3%
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 1 3.7% 1 100% 0 0.0 0.0
CONFERENCE 23 85.2% 12 52.2% 3 5.1 5.8
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 1 3.7% 1 100% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2 7.4% 1 50.0% 1 1.0 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 3.8% 1 100% 0 0.0 0.0
Single 25 96.2% 13 52.0% 3 4.8 5.7
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 9:14
Average session length (minutes:seconds) 12:48
Longest session recorded (minutes:seconds) 97:32
Average number of searches completed per session 5.8
Retrievals per search - median 1.0
Retrievals per search - average 60.8
Retrievals per search - standard deviation 288.8
Percent of searches completed with 0 results 31.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 872 49.7%
DISPLAY (excluding automatic displays) 434 24.7%
HELP 6 0.3%
EXPLAIN 9 0.5%
SET/RESET 90 5.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 97 5.5%
LOGON or LOGOFF 197 11.2%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 50 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.0%
SHORT 86.2%
LONG 3.1%
TAGS 0.3%
FIELDS 2.2%
PERIODICALS 1.8%
COMMENTS 0.0%
Other 0.3%
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 117 13.0% 32 27.3% 9 114.9 389.4
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 314 34.8% 146 46.5% 1 31.6 224.8
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 33 3.7% 8 24.2% 6 35.4 66.4
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1 0.1% 0 0.0% 5 5.0 0.0
EXACT PE 6 0.7% 0 0.0% 11 18.5 20.8
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 430 47.7% 103 24.0% 12 127.8 415.4
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 29 3.3% 7 24.1% 1 2.0 2.1
Single 843 96.7% 275 32.6% 6 101.7 371.7
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 9:50
Average session length (minutes:seconds) 9:49
Longest session recorded (minutes:seconds) 23:36
Average number of searches completed per session 2.8
Retrievals per search - median 10.0
Retrievals per search - average 1012.1
Retrievals per search - standard deviation 4436.0
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 32 28.1%
DISPLAY (excluding automatic displays) 45 39.5%
HELP 1 0.9%
EXPLAIN 2 1.8%
SET/RESET 6 5.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 4 3.5%
LOGON or LOGOFF 19 16.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 4.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.4%
SHORT 83.3%
LONG 6.3%
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 16 48.5% 3 18.8% 11 11.2 10.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 3 9.1% 2 66.7% 1 1.0 0.0
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 1 3.0% 0 0.0% 7,297 7297.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 8 24.2% 1 12.5% 52 349.7 727.0
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 3 9.1% 1 33.3% 12,949 12948.5 18242.6
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 2 6.1% 2 100% 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 3.1% 0 0.0% 1 1.0 0.0
Single 31 96.9% 9 29.0% 17 1626.7 5636.5
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.5%
Ten most frequent errors:
1. NS command - no next screen 31.0%
2. First word of command is invalid 19.0%
3. Z39.50 host cannot process command 12.1%
4. FIND command with invalid index name 6.8%
5. Too many truncated words to process 6.0%
6. DISPLAY command contains invalid word 5.2%
7. Search term missing from search command 1.9%
8. PS command - no previous screen 1.6%
9. Index invalid in current database 1.5%
10. DISPLAY command - no FIND results 1.4%
11. All others 13.5%
Ten most frequent EXPLAIN requests:
1. INDEXES (WCAT DB) 14.9%
2. LOCATE (Z39.50 DBS) 11.9%
3. FIND (Z39.50 DBS) 6.9%
4. G496 5.0%
5. COMMANDS (Z39.50 DBS) 5.0%
6. GUIDE: Z39.50 non-A&I DBS w/o truncation 5.0%
7. DISPLAY (Z39.50 non-A&I DBS) 4.0%
8. G931 4.0%
9. GUIDE (Z39.50 A&I DBS w/o truncation) 4.0%
10. G221 3.0%
11. All others 36.6%
Ten most frequent HELP situations:
1. First word of command is invalid 19.5%
2. Help requested from SET DB command 14.4%
3. FIND command with invalid index name 10.3%
4. DISPLAY command - middle of >1 screen 8.6%
5. DISPLAY command-complete in one screen 7.5%
6. FIND command with zero results 5.2%
7. F/BR with index invalid in current DB 5.2%
8. 938 4.0%
9. DISPLAY command-first of >1 screen 3.4%
10. DISPLAY command - last of >1 screen 3.4%
11. All others 18.4%
Ten most frequent SHOW requests:
1. HISTORY 73.3%
2. SEARCH 13.3%
3. GLOSSARY 4.4%
4. LOCAL INFORMATION 4.4%
5. SETTINGS (Z39.50 DBS) 2.2%
6. SYSTEM NEWS 2.2%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)