MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 08/11/01 through 08/17/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 119 436 555
Davis 250 50 300
Irvine 41 0 41
Los Angeles 1 76 77
Riverside 130 0 130
San Diego 61 16 77
San Francisco 37 0 37
Santa Barbara 26 14 40
Santa Cruz 104 4 108
Other - UC 6 20 26
Other-Network UC n/a 1,919 1,919
_______ ______ _____
775 2,535 3,310
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 16 67 469
2-4 a.m. 2 4 43
4-6 a.m. 36 61 187
6-8 a.m. 82 235 2,535
8-10 a.m. 385 1,040 7,082
10-12 a.m. 636 1,779 12,307
12-2 p.m. 513 1,495 9,551
2-4 p.m. 658 1,999 15,828
4-6 p.m. 505 1,784 17,395
6-8 p.m. 290 1,433 14,387
8-10 p.m. 118 664 5,899
10-12 p.m. 69 557 3,865
__________ __________ __________ _________________
Total: 3,310 11,118 89,548
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 368 1,509 1,877
Davis 660 173 833
Irvine 86 0 86
Los Angeles 1 272 273
Riverside 767 0 767
San Diego 246 27 273
San Francisco 96 0 96
Santa Barbara 63 44 107
Santa Cruz 218 15 233
Other - UC 8 141 149
Other-Network UC n/a 6,424 6,424
_______ ______ _____
2,513 8,605 11,118
Number of FIND commands by database
WorldCat 10,052
Art Index 30
ArticleFirst 203
ContentsFirst 3
ERIC 0
GPO 0
PapersFirst Index 409
ProceedingsFirst Index 30
SocAbstracts 0
PAIS International 0
MLA Bibliography 362
RILM Index 29
Total number of FIND commands 11,118
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,965 14,223 16,188
Davis 4,907 1,793 6,700
Irvine 1,062 0 1,062
Los Angeles 57 2,702 2,759
Riverside 5,699 0 5,699
San Diego 1,056 147 1,203
San Francisco 1,010 0 1,010
Santa Barbara 390 503 893
Santa Cruz 967 278 1,245
Other - UC 36 2,290 2,326
Other-Network UC n/a 50,463 50,463
_______ ______ _____
17,149 72,399 89,548
Number of Records Displayed by database
WorldCat 84,102
Art Index 208
ArticleFirst 1,616
ContentsFirst 49
ERIC 0
GPO 0
PapersFirst Index 994
ProceedingsFirst Index 89
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,752
RILM Index 738
Total number of Records Displayed 89,548
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,800 84.6%
Art Index 15 0.5%
ArticleFirst 113 3.4%
ContentsFirst 3 0.1%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 239 7.2%
ProceedingsFirst Index 26 0.8%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 102 3.1%
RILM Index 12 0.4%
Percent of searches done in the WCAT database 90.4%
Percent of searches done in the ART database 0.3%
Percent of searches done in the JRNL database 1.8%
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 3.7%
Percent of searches done in the PROC database 0.3%
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 3.3%
Percent of searches done in the RILM database 0.3%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 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 2.8
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:44
Average session length (minutes:seconds) 21:27
Longest session recorded (minutes:seconds) 274:35
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 432.8
Retrievals per search - standard deviation 9088.7
Percent of searches completed with 0 results 25.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,104 34.0%
DISPLAY (excluding automatic displays) 12,243 45.8%
HELP 17 0.1%
EXPLAIN 41 0.2%
SET/RESET 1,953 7.3%
SHOW 32 0.1%
ADD ON (AND, OR, AND NOT) 948 3.5%
LOGON or LOGOFF 2,022 7.6%
COMMENT 0 0.0%
USE 21 0.1%
OTHER 370 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 41.1%
LONG 8.0%
TAGS 0.1%
FIELDS 10.7%
PERIODICALS 20.1%
COMMENTS 0.0%
Other 10.2%
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 1,031 10.6% 303 29.4% 3 21.8 65.7
SUBJECT 185 1.9% 18 9.7% 62 5668.0 55361.7
EXACT SUBJECT 18 0.2% 4 22.2% 436 2667.7 4411.8
SERIES 145 1.5% 54 37.2% 3 632.8 3240.7
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 4 0.0% 0 0.0% 54 108.3 152.3
LANGUAGE 17 0.2% 1 5.9% 19 343.8 711.8
FORM 136 1.4% 12 8.8% 9 85.6 423.9
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 8 0.1% 8 100% 0 0.0 0.0
NOTES 23 0.2% 12 52.2% 1 107.4 174.9
ACCESSION NUMBER 195 2.0% 2 1.0% 1 1.0 0.0
PLACE OF PUBL. 12 0.1% 6 50.0% 65 12618.5 20410.5
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 869 8.9% 260 29.9% 2 4.5 19.3
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,813 18.6% 535 29.5% 6 105.6 757.2
EXACT PE 146 1.5% 26 17.8% 5 200.9 1571.3
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 236 2.4% 51 21.6% 6 101.0 339.3
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,883 50.2% 1,237 25.3% 10 820.0 9216.4
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 601 6.6% 139 23.1% 6 71.6 311.9
Single 8,499 93.4% 2,248 26.4% 6 680.0 11514.8
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 9:27
Average session length (minutes:seconds) 10:22
Longest session recorded (minutes:seconds) 33:41
Average number of searches completed per session 1.9
Retrievals per search - median 1.0
Retrievals per search - average 88.8
Retrievals per search - standard deviation 292.8
Percent of searches completed with 0 results 48.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 29 30.5%
DISPLAY (excluding automatic displays) 32 33.7%
HELP 2 2.1%
EXPLAIN 4 4.2%
SET/RESET 10 10.5%
SHOW 1 1.1%
ADD ON (AND, OR, AND NOT) 1 1.1%
LOGON or LOGOFF 14 14.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 2.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.3%
SHORT 90.7%
LONG 4.7%
TAGS 0.0%
FIELDS 2.3%
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 8 25.8% 5 62.5% 5 4.7 1.5
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 9 29.0% 3 33.3% 66 313.2 609.7
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 3.2% 0 0.0% 13 13.0 0.0
Other indexes 13 41.9% 6 46.2% 99 125.1 135.6
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 3 10.7% 1 33.3% 104 103.5 128.0
Single 25 89.3% 12 48.0% 8 182.2 424.3
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 15:15
Average session length (minutes:seconds) 16:41
Longest session recorded (minutes:seconds) 43:00
Average number of searches completed per session 1.8
Retrievals per search - median 2.0
Retrievals per search - average 108.0
Retrievals per search - standard deviation 850.3
Percent of searches completed with 0 results 36.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 187 38.7%
DISPLAY (excluding automatic displays) 138 28.6%
HELP 4 0.8%
EXPLAIN 4 0.8%
SET/RESET 99 20.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 16 3.3%
LOGON or LOGOFF 31 6.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 0.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.8%
SHORT 34.3%
LONG 1.2%
TAGS 0.0%
FIELDS 7.8%
PERIODICALS 48.2%
COMMENTS 0.0%
Other 0.6%
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 106 51.7% 53 50.0% 4 286.0 1628.8
EXACT TITLE 1 0.5% 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 6 2.9% 4 66.7% 361 361.0 380.4
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 46 22.4% 4 8.7% 7 22.8 47.6
EXACT PE 4 2.0% 0 0.0% 9 12.8 14.2
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 42 20.5% 9 21.4% 14 186.3 394.2
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 9.1% 5 29.4% 11 98.3 194.2
Single 170 90.9% 61 35.9% 8 189.7 1154.5
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 3:00
Average session length (minutes:seconds) 3:00
Longest session recorded (minutes:seconds) 3:00
Average number of searches completed per session 1.0
Retrievals per search - median 138.0
Retrievals per search - average 1501.3
Retrievals per search - standard deviation 2481.8
Percent of searches completed with 0 results 33.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3 25.0%
DISPLAY (excluding automatic displays) 3 25.0%
HELP 1 8.3%
EXPLAIN 1 8.3%
SET/RESET 3 25.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 1 8.3%
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 3 100% 1 33.3% 2,252 2252.0 2989.6
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 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 3 100% 1 33.3% 2,252 2252.0 2989.6
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 16:46
Average session length (minutes:seconds) 18:57
Longest session recorded (minutes:seconds) 73:50
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 143.5
Retrievals per search - standard deviation 1208.2
Percent of searches completed with 0 results 41.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 335 37.3%
DISPLAY (excluding automatic displays) 215 23.9%
HELP 1 0.1%
EXPLAIN 1 0.1%
SET/RESET 215 23.9%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 74 8.2%
LOGON or LOGOFF 44 4.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 54.1%
LONG 3.4%
TAGS 0.0%
FIELDS 10.2%
PERIODICALS 10.5%
COMMENTS 0.0%
Other 10.5%
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 102 27.2% 29 28.4% 30 710.9 2797.4
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 232 61.9% 120 51.7% 2 28.6 76.3
EXACT TITLE 5 1.3% 0 0.0% 16 10.8 7.2
KEYWORD 4 1.1% 2 50.0% 2 1.5 0.7
CONFERENCE 3 0.8% 2 66.7% 222 222.0 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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 1 0.3% 1 100% 0 0.0 0.0
DATE 7 1.9% 2 28.6% 3 12.4 20.1
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 16 4.3% 2 12.5% 4 17.3 30.2
EXACT PE 5 1.3% 0 0.0% 4 3.6 1.1
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 39 11.6% 20 51.3% 3 7.5 12.1
Single 296 88.4% 117 39.5% 6 309.6 1811.3
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 10:36
Average session length (minutes:seconds) 14:24
Longest session recorded (minutes:seconds) 40:04
Average number of searches completed per session 1.2
Retrievals per search - median 0.0
Retrievals per search - average 17.1
Retrievals per search - standard deviation 60.1
Percent of searches completed with 0 results 63.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 29 25.9%
DISPLAY (excluding automatic displays) 18 16.1%
HELP 8 7.1%
EXPLAIN 14 12.5%
SET/RESET 18 16.1%
SHOW 1 0.9%
ADD ON (AND, OR, AND NOT) 1 0.9%
LOGON or LOGOFF 18 16.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 4.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 61.9%
SHORT 4.8%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 33.3%
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 20.0% 5 83.3% 1 1.0 0.0
CONFERENCE 19 63.3% 12 63.2% 5 4.4 2.8
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 2 6.7% 0 0.0% 238 238.0 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 3.3% 0 0.0% 5 5.0 0.0
SUBJECT 1 3.3% 1 100% 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 3.3% 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 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 3.4% 1 100% 0 0.0 0.0
Single 28 96.6% 17 60.7% 5 46.6 94.6
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:37
Average session length (minutes:seconds) 8:18
Longest session recorded (minutes:seconds) 47:52
Average number of searches completed per session 3.5
Retrievals per search - median 5.0
Retrievals per search - average 129.1
Retrievals per search - standard deviation 995.7
Percent of searches completed with 0 results 29.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 328 40.2%
DISPLAY (excluding automatic displays) 214 26.2%
HELP 12 1.5%
EXPLAIN 18 2.2%
SET/RESET 40 4.9%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 34 4.2%
LOGON or LOGOFF 130 15.9%
COMMENT 0 0.0%
USE 4 0.5%
OTHER 34 4.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.5%
SHORT 74.5%
LONG 18.7%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 1.9%
COMMENTS 0.0%
Other 0.4%
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 121 33.5% 39 32.2% 16 180.2 768.4
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 69 19.1% 29 42.0% 8 113.6 315.0
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 27 7.5% 10 37.0% 32 1063.6 4148.5
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 0.6% 0 0.0% 13 12.5 16.3
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 142 39.3% 26 18.3% 14 96.3 340.4
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 34 10.4% 6 17.6% 15 85.6 166.7
Single 293 89.6% 92 31.4% 14 218.0 1327.4
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:48
Average session length (minutes:seconds) 10:22
Longest session recorded (minutes:seconds) 25:42
Average number of searches completed per session 2.4
Retrievals per search - median 7.0
Retrievals per search - average 74.6
Retrievals per search - standard deviation 120.7
Percent of searches completed with 0 results 17.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 29 17.3%
DISPLAY (excluding automatic displays) 106 63.1%
HELP 2 1.2%
EXPLAIN 2 1.2%
SET/RESET 3 1.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 21 12.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 32.4%
SHORT 67.6%
LONG 0.0%
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 7 24.1% 2 28.6% 2 12.0 14.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 21 72.4% 2 9.5% 22 110.6 136.5
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 3.4% 1 100% 0 0.0 0.0
ABSTRACT 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
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 29 100% 5 17.2% 19 90.1 127.6
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.3%
Ten most frequent errors:
1. NS command - no next screen 33.0%
2. First word of command is invalid 16.6%
3. Z39.50 host cannot process command 13.9%
4. FIND command with invalid index name 7.1%
5. DISPLAY command contains invalid word 5.7%
6. Too many truncated words to process 5.1%
7. Search term missing from search command 2.6%
8. DISPLAY command - no FIND results 2.2%
9. Index invalid in current database 1.4%
10. PS command - no previous screen 1.3%
11. All others 11.2%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 18.8%
2. FIND (Z39.50 DBS) 10.6%
3. INDEXES (PROC DB) 9.4%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 9.4%
5. INDEXES (WCAT DB) 8.2%
6. Unrecognized term-reminders off 4.7%
7. GUIDE (JRNL DB) 3.5%
8. INDEXES (MLA DB) 3.5%
9. GUIDE (Z39.50 A&I DBS w/o truncation) 3.5%
10. G202 2.4%
11. All others 25.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.2%
2. First word of command is invalid 13.6%
3. FIND command with zero results 12.1%
4. F/BR with index invalid in current DB 9.1%
5. DISPLAY command-complete in one screen 8.3%
6. DISPLAY command-first of >1 screen 5.3%
7. DISPLAY command - last of >1 screen 5.3%
8. FIND command with invalid index name 4.5%
9. 935 3.0%
10. NS command - no next screen 2.3%
11. All others 12.1%
Ten most frequent SHOW requests:
1. HISTORY 86.8%
2. SETTINGS (Z39.50 DBS) 5.3%
3. GLOSSARY 5.3%
4. SEARCH 2.6%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)