MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 07/21/01 through 07/27/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 109 582 691
Davis 212 58 270
Irvine 80 0 80
Los Angeles 1 146 147
Riverside 162 4 166
San Diego 58 14 72
San Francisco 28 0 28
Santa Barbara 25 13 38
Santa Cruz 61 7 68
Other - UC 0 18 18
Other-Network UC n/a 1,870 1,870
_______ ______ _____
736 2,712 3,448
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 13 75 565
2-4 a.m. 0 0 0
4-6 a.m. 44 75 198
6-8 a.m. 123 367 3,643
8-10 a.m. 441 1,296 9,664
10-12 a.m. 606 1,869 12,101
12-2 p.m. 530 1,536 11,673
2-4 p.m. 666 1,940 14,288
4-6 p.m. 579 1,841 16,278
6-8 p.m. 260 1,002 9,829
8-10 p.m. 90 344 2,390
10-12 p.m. 96 486 3,833
__________ __________ __________ _________________
Total: 3,448 10,831 84,462
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 386 1,986 2,372
Davis 588 109 697
Irvine 192 0 192
Los Angeles 4 469 473
Riverside 617 8 625
San Diego 155 39 194
San Francisco 102 0 102
Santa Barbara 67 29 96
Santa Cruz 124 8 132
Other - UC 0 175 175
Other-Network UC n/a 5,773 5,773
_______ ______ _____
2,235 8,596 10,831
Number of FIND commands by database
WorldCat 9,475
Art Index 42
ArticleFirst 542
ContentsFirst 1
ERIC 0
GPO 0
PapersFirst Index 390
ProceedingsFirst Index 26
SocAbstracts 0
PAIS International 0
MLA Bibliography 333
RILM Index 22
Total number of FIND commands 10,831
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,943 16,097 19,040
Davis 4,149 865 5,014
Irvine 1,262 0 1,262
Los Angeles 10 4,408 4,418
Riverside 7,384 82 7,466
San Diego 1,708 612 2,320
San Francisco 1,017 0 1,017
Santa Barbara 406 396 802
Santa Cruz 687 86 773
Other - UC 0 1,631 1,631
Other-Network UC n/a 40,719 40,719
_______ ______ _____
19,566 64,896 84,462
Number of Records Displayed by database
WorldCat 76,924
Art Index 564
ArticleFirst 2,762
ContentsFirst 44
ERIC 0
GPO 0
PapersFirst Index 1,068
ProceedingsFirst Index 189
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,210
RILM Index 701
Total number of Records Displayed 84,462
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,749 79.7%
Art Index 22 0.6%
ArticleFirst 295 8.6%
ContentsFirst 1 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 248 7.2%
ProceedingsFirst Index 20 0.6%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 105 3.0%
RILM Index 8 0.2%
Percent of searches done in the WCAT database 87.5%
Percent of searches done in the ART database 0.4%
Percent of searches done in the JRNL database 5.0%
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 3.6%
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 3.1%
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 0.7
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 0.4
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:26
Average session length (minutes:seconds) 21:50
Longest session recorded (minutes:seconds) 470:46
Average number of searches completed per session 3.4
Retrievals per search - median 2.0
Retrievals per search - average 190.0
Retrievals per search - standard deviation 3398.8
Percent of searches completed with 0 results 26.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8,460 34.2%
DISPLAY (excluding automatic displays) 10,722 43.4%
HELP 23 0.1%
EXPLAIN 67 0.3%
SET/RESET 1,846 7.5%
SHOW 47 0.2%
ADD ON (AND, OR, AND NOT) 1,015 4.1%
LOGON or LOGOFF 2,166 8.8%
COMMENT 0 0.0%
USE 19 0.1%
OTHER 359 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.1%
SHORT 44.0%
LONG 8.7%
TAGS 0.0%
FIELDS 9.8%
PERIODICALS 16.2%
COMMENTS 0.0%
Other 11.1%
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 1 0.0% 0 0.0% 1 1.0 0.0
EXACT TITLE 951 10.6% 263 27.7% 3 20.9 68.7
SUBJECT 170 1.9% 31 18.2% 44 637.3 2701.1
EXACT SUBJECT 1 0.0% 1 100% 0 0.0 0.0
SERIES 164 1.8% 51 31.1% 7 425.2 2752.0
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 7 0.1% 1 14.3% 53 208.0 360.0
FORM 123 1.4% 13 10.6% 14 205.5 1004.4
MUSIC PUBLISHER 5 0.1% 1 20.0% 15 15.3 14.2
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 15 0.2% 3 20.0% 8 114.3 231.8
ACCESSION NUMBER 224 2.5% 4 1.8% 1 1.0 0.0
PLACE OF PUBL. 4 0.0% 1 25.0% 10 8.7 2.3
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 645 7.2% 187 29.0% 1 7.9 48.7
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,160 12.9% 320 27.6% 5 76.7 588.4
EXACT PE 157 1.8% 48 30.6% 3 8.0 19.2
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 197 2.2% 34 17.3% 5 156.6 1496.7
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,137 57.3% 1,445 28.1% 10 410.6 5370.7
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 490 5.8% 103 21.0% 8 129.8 1110.0
Single 7,964 94.2% 2,193 27.5% 5 291.9 4333.3
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 5:48
Average session length (minutes:seconds) 11:46
Longest session recorded (minutes:seconds) 53:52
Average number of searches completed per session 1.9
Retrievals per search - median 5.0
Retrievals per search - average 3273.8
Retrievals per search - standard deviation 17612
Percent of searches completed with 0 results 28.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 42 25.6%
DISPLAY (excluding automatic displays) 62 37.8%
HELP 3 1.8%
EXPLAIN 9 5.5%
SET/RESET 13 7.9%
SHOW 1 0.6%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 27 16.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 4.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 84.2%
LONG 9.2%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 6.6%
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 13 30.2% 5 38.5% 13 29.0 36.7
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 8 18.6% 0 0.0% 57 284.0 569.6
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 1 2.3% 0 0.0% 5 5.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 21 48.8% 7 33.3% 59 9655.6 30204.6
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 2.4% 0 0.0% 188 188.0 0.0
Single 41 97.6% 12 29.3% 38 4734.9 21144.1
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 16:20
Average session length (minutes:seconds) 16:38
Longest session recorded (minutes:seconds) 61:26
Average number of searches completed per session 1.8
Retrievals per search - median 2.0
Retrievals per search - average 129.1
Retrievals per search - standard deviation 1141.2
Percent of searches completed with 0 results 33.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 471 38.1%
DISPLAY (excluding automatic displays) 336 27.2%
HELP 5 0.4%
EXPLAIN 1 0.1%
SET/RESET 257 20.8%
SHOW 3 0.2%
ADD ON (AND, OR, AND NOT) 71 5.7%
LOGON or LOGOFF 76 6.1%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 16 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 13.2%
SHORT 48.3%
LONG 1.5%
TAGS 0.0%
FIELDS 8.3%
PERIODICALS 28.8%
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 271 50.6% 124 45.8% 5 91.5 441.4
EXACT TITLE 1 0.2% 1 100% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 8 1.5% 1 12.5% 20 41.4 49.6
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 70 13.1% 12 17.1% 7 27.9 65.4
EXACT PE 13 2.4% 0 0.0% 2 4.3 7.0
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 173 32.3% 45 26.0% 27 493.3 2291.9
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 64 13.6% 26 40.6% 10 254.9 578.0
Single 407 86.4% 131 32.2% 9 214.4 1579.3
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 0:00
Average session length (minutes:seconds) 0:00
Longest session recorded (minutes:seconds) 0:00
Average number of searches completed per session 1.0
Retrievals per search - median 44.0
Retrievals per search - average 44.0
Retrievals per search - standard deviation 0.0
Percent of searches completed with 0 results 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1 33.3%
DISPLAY (excluding automatic displays) 1 33.3%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 1 33.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 0 0.0%
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 1 100% 0 0.0% 44 44.0 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 1 100% 0 0.0% 44 44.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 15:07
Average session length (minutes:seconds) 16:32
Longest session recorded (minutes:seconds) 36:48
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 211.8
Retrievals per search - standard deviation 3660.7
Percent of searches completed with 0 results 48.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 350 39.6%
DISPLAY (excluding automatic displays) 204 23.1%
HELP 4 0.5%
EXPLAIN 3 0.3%
SET/RESET 222 25.1%
SHOW 7 0.8%
ADD ON (AND, OR, AND NOT) 40 4.5%
LOGON or LOGOFF 43 4.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.1%
SHORT 50.2%
LONG 0.4%
TAGS 0.0%
FIELDS 10.3%
PERIODICALS 25.1%
COMMENTS 0.0%
Other 5.9%
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 28.6% 47 39.5% 7 103.3 296.5
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 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 235 56.5% 139 59.1% 2 13.6 35.8
EXACT TITLE 3 0.7% 3 100% 0 0.0 0.0
KEYWORD 5 1.2% 3 60.0% 72 72.0 96.2
CONFERENCE 5 1.2% 2 40.0% 57 57.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 1 0.2% 0 0.0% 72,176 72176.0 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 0.2% 1 100% 0 0.0 0.0
EXACT JOURNAL 3 0.7% 2 66.7% 600 600.0 0.0
DATE 8 1.9% 4 50.0% 2 1.5 0.6
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 36 8.7% 3 8.3% 8 16.1 17.2
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 65 18.6% 39 60.0% 2 6.1 15.7
Single 284 81.4% 126 44.4% 7 519.3 5740.9
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 5:48
Average session length (minutes:seconds) 14:18
Longest session recorded (minutes:seconds) 33:13
Average number of searches completed per session 1.3
Retrievals per search - median 4.5
Retrievals per search - average 26.5
Retrievals per search - standard deviation 65.9
Percent of searches completed with 0 results 26.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 25 30.5%
DISPLAY (excluding automatic displays) 22 26.8%
HELP 4 4.9%
EXPLAIN 5 6.1%
SET/RESET 18 21.9%
SHOW 1 1.2%
ADD ON (AND, OR, AND NOT) 1 1.2%
LOGON or LOGOFF 6 7.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 72.0%
SHORT 12.0%
LONG 4.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 12.0%
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 6 24.0% 2 33.3% 15 61.8 100.4
CONFERENCE 16 64.0% 4 25.0% 9 30.3 76.8
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 3 12.0% 1 33.3% 40 39.5 48.8
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 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 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 25 100% 7 28.0% 9 38.3 76.9
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:36
Average session length (minutes:seconds) 8:40
Longest session recorded (minutes:seconds) 34:31
Average number of searches completed per session 3.2
Retrievals per search - median 3.0
Retrievals per search - average 47.6
Retrievals per search - standard deviation 185.3
Percent of searches completed with 0 results 29.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 325 41.4%
DISPLAY (excluding automatic displays) 231 29.4%
HELP 10 1.3%
EXPLAIN 12 1.5%
SET/RESET 46 5.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 8 1.0%
LOGON or LOGOFF 121 15.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 32 4.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.7%
SHORT 83.1%
LONG 14.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.3%
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 77 23.2% 17 22.1% 16 137.8 371.5
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 77 23.2% 30 39.0% 4 39.8 116.4
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 20 6.0% 2 10.0% 40 146.3 267.1
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 3 0.9% 2 66.7% 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 155 46.7% 46 29.7% 11 38.5 101.4
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 7 2.2% 2 28.6% 170 269.0 298.5
Single 318 97.8% 93 29.2% 9 63.4 216.6
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:57
Average session length (minutes:seconds) 12:29
Longest session recorded (minutes:seconds) 33:12
Average number of searches completed per session 2.8
Retrievals per search - median 26.5
Retrievals per search - average 64.5
Retrievals per search - standard deviation 112.4
Percent of searches completed with 0 results 9.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 21 17.4%
DISPLAY (excluding automatic displays) 75 62.0%
HELP 3 2.5%
EXPLAIN 1 0.8%
SET/RESET 5 4.1%
SHOW 1 0.8%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 10 8.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 19.5%
SHORT 76.8%
LONG 3.7%
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 6 27.3% 0 0.0% 6 7.3 5.3
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 4 18.2% 1 25.0% 2 44.3 74.2
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 11 50.0% 1 9.1% 35 64.6 110.1
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 1 4.5% 0 0.0% 368 368.0 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 4.8% 0 0.0% 2 2.0 0.0
Single 20 95.2% 2 10.0% 31 65.9 115.2
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.8%
Ten most frequent errors:
1. NS command - no next screen 36.3%
2. First word of command is invalid 17.3%
3. Z39.50 host cannot process command 11.7%
4. FIND command with invalid index name 6.0%
5. Too many truncated words to process 5.3%
6. DISPLAY command contains invalid word 4.8%
7. PS command - no previous screen 1.5%
8. Search term missing from search command 1.3%
9. DISPLAY command - no FIND results 1.3%
10. Add-on search with no previous result 1.1%
11. All others 13.4%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 15.3%
2. FIND (Z39.50 DBS) 12.2%
3. INDEXES (WCAT DB) 12.2%
4. Unrecognized term 9.2%
5. GUIDE: Z39.50 non-A&I DBS w/o truncation 6.1%
6. COMMANDS (Z39.50 DBS) 5.1%
7. DISPLAY (Z39.50 non-A&I DBS) 4.1%
8. GUIDE (Z39.50 A&I DBS w/o truncation) 4.1%
9. G985 4.1%
10. GUIDE (ART DB) 3.1%
11. All others 24.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 28.0%
2. First word of command is invalid 15.3%
3. DISPLAY command-first of >1 screen 7.3%
4. DISPLAY command-complete in one screen 6.7%
5. FIND command with zero results 6.0%
6. FIND command with invalid index name 4.7%
7. FIND command retrieves >1 book 4.0%
8. NS command - no next screen 3.3%
9. DISPLAY command - last of >1 screen 3.3%
10. FIND command retrieves 1 book 2.7%
11. All others 18.7%
Ten most frequent SHOW requests:
1. HISTORY 86.7%
2. SEARCH 8.3%
3. GLOSSARY 3.3%
4. SETTINGS (Z39.50 DBS) 1.7%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)