MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 06/02/01 through 06/08/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 103 362 465
Davis 235 59 294
Irvine 75 0 75
Los Angeles 3 155 158
Riverside 130 5 135
San Diego 65 23 88
San Francisco 27 0 27
Santa Barbara 23 38 61
Santa Cruz 49 3 52
Other - UC 0 17 17
Other-Network UC n/a 1,712 1,712
_______ ______ _____
710 2,374 3,084
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 13 45 449
2-4 a.m. 4 31 160
4-6 a.m. 57 150 409
6-8 a.m. 131 355 1,730
8-10 a.m. 413 1,116 8,441
10-12 a.m. 548 1,528 12,692
12-2 p.m. 486 1,184 9,837
2-4 p.m. 529 1,458 12,439
4-6 p.m. 473 1,499 12,093
6-8 p.m. 182 757 7,355
8-10 p.m. 123 645 5,054
10-12 p.m. 125 971 7,879
__________ __________ __________ _________________
Total: 3,084 9,739 78,538
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 247 954 1,201
Davis 700 154 854
Irvine 210 0 210
Los Angeles 2 500 502
Riverside 485 10 495
San Diego 123 47 170
San Francisco 101 0 101
Santa Barbara 73 98 171
Santa Cruz 116 13 129
Other - UC 0 23 23
Other-Network UC n/a 5,883 5,883
_______ ______ _____
2,057 7,682 9,739
Number of FIND commands by database
WorldCat 8,462
Art Index 32
ArticleFirst 490
ContentsFirst 18
ERIC 0
GPO 0
PapersFirst Index 274
ProceedingsFirst Index 60
SocAbstracts 0
PAIS International 0
MLA Bibliography 357
RILM Index 46
Total number of FIND commands 9,739
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,076 9,470 11,546
Davis 6,430 1,756 8,186
Irvine 2,172 0 2,172
Los Angeles 3 4,152 4,155
Riverside 3,852 107 3,959
San Diego 816 384 1,200
San Francisco 1,161 0 1,161
Santa Barbara 1,255 413 1,668
Santa Cruz 687 50 737
Other - UC 0 345 345
Other-Network UC n/a 43,409 43,409
_______ ______ _____
18,452 60,086 78,538
Number of Records Displayed by database
WorldCat 72,141
Art Index 269
ArticleFirst 1,599
ContentsFirst 628
ERIC 0
GPO 0
PapersFirst Index 636
ProceedingsFirst Index 323
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,654
RILM Index 288
Total number of Records Displayed 78,538
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,493 80.8%
Art Index 20 0.6%
ArticleFirst 224 7.3%
ContentsFirst 13 0.4%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 143 4.6%
ProceedingsFirst Index 40 1.3%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 131 4.2%
RILM Index 20 0.6%
Percent of searches done in the WCAT database 86.9%
Percent of searches done in the ART database 0.3%
Percent of searches done in the JRNL database 5.0%
Percent of searches done in the JRNLT database 0.2%
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 2.8%
Percent of searches done in the PROC database 0.6%
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 3.7%
Percent of searches done in the RILM database 0.5%
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 2.1
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) 14:22
Average session length (minutes:seconds) 21:27
Longest session recorded (minutes:seconds) 371:02
Average number of searches completed per session 3.4
Retrievals per search - median 3.0
Retrievals per search - average 254.0
Retrievals per search - standard deviation 5847.4
Percent of searches completed with 0 results 25.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,585 33.4%
DISPLAY (excluding automatic displays) 10,169 44.8%
HELP 29 0.1%
EXPLAIN 45 0.2%
SET/RESET 1,702 7.5%
SHOW 54 0.2%
ADD ON (AND, OR, AND NOT) 877 3.9%
LOGON or LOGOFF 1,862 8.2%
COMMENT 0 0.0%
USE 18 0.1%
OTHER 333 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 40.1%
LONG 7.3%
TAGS 0.2%
FIELDS 8.9%
PERIODICALS 23.2%
COMMENTS 0.0%
Other 9.2%
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 660 8.2% 159 24.1% 4 25.4 69.8
SUBJECT 85 1.1% 13 15.3% 28 346.2 885.4
EXACT SUBJECT 5 0.1% 1 20.0% 967 1323.8 1536.9
SERIES 125 1.6% 34 27.2% 6 256.7 2068.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 11 0.1% 2 18.2% 6 21.6 28.8
LANGUAGE 6 0.1% 1 16.7% 292 3290.4 4371.1
FORM 108 1.3% 15 13.9% 10 58.4 178.1
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 21 0.3% 4 19.0% 72 400.1 619.4
ACCESSION NUMBER 142 1.8% 4 2.8% 1 1.0 0.0
PLACE OF PUBL. 7 0.1% 0 0.0% 10 83.6 110.2
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 1 0.0% 1 100% 0 0.0 0.0
ISBN/ISSN/LCCN 483 6.0% 119 24.6% 1 3.0 6.9
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,664 20.7% 540 32.4% 5 54.4 250.6
EXACT PE 175 2.2% 51 29.1% 3 73.1 398.6
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 191 2.4% 34 17.8% 7 84.5 293.7
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,366 54.2% 1,093 25.0% 11 599.9 9378.0
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 452 6.0% 117 25.9% 7 119.7 666.3
Single 7,127 94.0% 1,832 25.7% 6 389.6 7382.8
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:06
Average session length (minutes:seconds) 5:36
Longest session recorded (minutes:seconds) 17:28
Average number of searches completed per session 1.6
Retrievals per search - median 1.5
Retrievals per search - average 20.4
Retrievals per search - standard deviation 66.9
Percent of searches completed with 0 results 40.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 32 28.3%
DISPLAY (excluding automatic displays) 23 20.4%
HELP 5 4.4%
EXPLAIN 10 8.8%
SET/RESET 7 6.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 30 26.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 96.4%
LONG 3.6%
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 14 43.8% 2 14.3% 10 18.3 22.8
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 15 46.9% 9 60.0% 3 72.2 149.2
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 3 9.4% 2 66.7% 1 1.0 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 32 100% 13 40.6% 3 34.4 84.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 13:56
Average session length (minutes:seconds) 20:18
Longest session recorded (minutes:seconds) 111:17
Average number of searches completed per session 2.2
Retrievals per search - median 1.0
Retrievals per search - average 108.9
Retrievals per search - standard deviation 1109.7
Percent of searches completed with 0 results 39.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 458 44.8%
DISPLAY (excluding automatic displays) 248 24.2%
HELP 3 0.3%
EXPLAIN 5 0.5%
SET/RESET 172 16.8%
SHOW 4 0.4%
ADD ON (AND, OR, AND NOT) 32 3.1%
LOGON or LOGOFF 85 8.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 16 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.9%
SHORT 62.5%
LONG 0.6%
TAGS 0.0%
FIELDS 12.9%
PERIODICALS 12.6%
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 315 54.8% 141 44.8% 4 192.6 1809.7
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 3 0.5% 2 66.7% 9 9.0 0.0
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 26 4.5% 6 23.1% 4 11.4 23.0
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 230 40.0% 90 39.1% 10 155.9 475.5
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 117 25.6% 58 49.6% 6 42.0 136.8
Single 340 74.4% 124 36.5% 6 234.3 1661.7
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 18:07
Average session length (minutes:seconds) 18:07
Longest session recorded (minutes:seconds) 18:07
Average number of searches completed per session 1.4
Retrievals per search - median 44.0
Retrievals per search - average 118.4
Retrievals per search - standard deviation 176.0
Percent of searches completed with 0 results 33.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 18 27.3%
DISPLAY (excluding automatic displays) 28 42.4%
HELP 2 3.0%
EXPLAIN 4 6.1%
SET/RESET 10 15.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 6.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 66.7%
SHORT 33.3%
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 16 88.9% 4 25.0% 60 177.7 190.7
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 11.1% 2 100% 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 18 100% 6 33.3% 60 177.7 190.7
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 15:21
Average session length (minutes:seconds) 16:27
Longest session recorded (minutes:seconds) 44:10
Average number of searches completed per session 1.9
Retrievals per search - median 1.0
Retrievals per search - average 122.2
Retrievals per search - standard deviation 856.3
Percent of searches completed with 0 results 44.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 242 41.6%
DISPLAY (excluding automatic displays) 117 20.1%
HELP 0 0.0%
EXPLAIN 6 1.0%
SET/RESET 118 20.3%
SHOW 4 0.7%
ADD ON (AND, OR, AND NOT) 32 5.5%
LOGON or LOGOFF 53 9.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.8%
SHORT 63.5%
LONG 2.4%
TAGS 0.0%
FIELDS 11.4%
PERIODICALS 7.2%
COMMENTS 0.0%
Other 4.8%
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 128 41.2% 39 30.5% 15 322.8 1471.0
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 152 48.9% 83 54.6% 4 60.2 247.6
EXACT TITLE 4 1.3% 4 100% 0 0.0 0.0
KEYWORD 3 1.0% 2 66.7% 1 1.0 0.0
CONFERENCE 5 1.6% 3 60.0% 31 30.5 30.4
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 2 0.6% 0 0.0% 190 190.0 267.3
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 0 0.0% 0 0.0% 0 0.0 0.0
DATE 10 3.2% 1 10.0% 9 210.4 565.3
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.3% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 5 1.6% 1 20.0% 2 2.0 1.2
EXACT PE 1 0.3% 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 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 26.9% 27 41.5% 3 65.8 282.1
Single 177 73.1% 79 44.6% 19 308.4 1405.7
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 11:29
Average session length (minutes:seconds) 14:33
Longest session recorded (minutes:seconds) 45:05
Average number of searches completed per session 1.5
Retrievals per search - median 0.5
Retrievals per search - average 12.3
Retrievals per search - standard deviation 69.1
Percent of searches completed with 0 results 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 59 33.5%
DISPLAY (excluding automatic displays) 47 26.7%
HELP 4 2.3%
EXPLAIN 13 7.4%
SET/RESET 32 18.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.6%
LOGON or LOGOFF 16 9.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 2.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 56.1%
SHORT 14.0%
LONG 8.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 8.8%
COMMENTS 0.0%
Other 12.3%
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 7 11.9% 6 85.7% 5 5.0 0.0
CONFERENCE 48 81.4% 22 45.8% 4 6.3 5.1
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 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 3 5.1% 1 33.3% 283 283.0 359.2
EXACT PE 1 1.7% 0 0.0% 3 3.0 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 59 100% 29 49.2% 5 24.6 97.0
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:21
Average session length (minutes:seconds) 7:22
Longest session recorded (minutes:seconds) 36:13
Average number of searches completed per session 2.7
Retrievals per search - median 5.0
Retrievals per search - average 90.4
Retrievals per search - standard deviation 467.8
Percent of searches completed with 0 results 28.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 344 34.7%
DISPLAY (excluding automatic displays) 263 26.5%
HELP 34 3.4%
EXPLAIN 41 4.1%
SET/RESET 39 3.9%
SHOW 11 1.1%
ADD ON (AND, OR, AND NOT) 13 1.3%
LOGON or LOGOFF 196 19.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 51 5.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.2%
SHORT 84.6%
LONG 9.2%
TAGS 0.0%
FIELDS 3.4%
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 67 18.5% 28 41.8% 23 300.6 1267.2
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 88 24.3% 23 26.1% 9 88.1 163.4
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 55 15.2% 14 25.5% 13 133.9 283.2
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 0.3% 1 100% 0 0.0 0.0
EXACT PE 1 0.3% 0 0.0% 4 4.0 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 150 41.4% 37 24.7% 14 73.2 266.5
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 19 5.5% 8 42.1% 5 33.5 69.5
Single 324 94.5% 87 26.9% 17 128.6 564.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 0:59
Average session length (minutes:seconds) 4:07
Longest session recorded (minutes:seconds) 18:49
Average number of searches completed per session 2.3
Retrievals per search - median 5.5
Retrievals per search - average 186.5
Retrievals per search - standard deviation 1078.2
Percent of searches completed with 0 results 26.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 44 31.4%
DISPLAY (excluding automatic displays) 44 31.4%
HELP 2 1.4%
EXPLAIN 4 2.9%
SET/RESET 2 1.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 1.4%
LOGON or LOGOFF 34 24.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 5.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 14.5%
SHORT 80.0%
LONG 3.6%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.8%
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 15 30.6% 3 20.0% 8 16.8 28.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 13 26.5% 6 46.2% 5 11.3 13.3
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 22.4% 0 0.0% 31 694.4 2201.5
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 9 18.4% 5 55.6% 172 149.0 109.7
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 1 2.0% 0 0.0% 38 38.0 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 11.4% 2 40.0% 1 1.0 0.0
Single 39 88.6% 10 25.6% 16 294.7 1354.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.2%
Ten most frequent errors:
1. NS command - no next screen 32.7%
2. Z39.50 host cannot process command 15.8%
3. First word of command is invalid 15.7%
4. FIND command with invalid index name 5.4%
5. Too many truncated words to process 5.3%
6. DISPLAY command contains invalid word 4.6%
7. Max. # of ports to a Z39 db are in use 2.9%
8. Search term missing from search command 1.8%
9. Index invalid in current database 1.3%
10. Add-on search with no previous result 1.2%
11. All others 13.1%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 15.6%
2. INDEXES (WCAT DB) 11.7%
3. LOCATE (Z39.50 DBS) 7.0%
4. INDEXES (PROC DB) 7.0%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 6.3%
6. GUIDE (ART DB) 5.5%
7. FIND (Z39.50 DBS) 5.5%
8. Unrecognized term-reminders off 5.5%
9. LOCATE (Z39.50 DBS) 3.9%
10. Unrecognized term 3.9%
11. All others 28.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 32.4%
2. First word of command is invalid 14.5%
3. DISPLAY command-first of >1 screen 8.7%
4. FIND command with zero results 8.2%
5. DISPLAY command-complete in one screen 6.3%
6. FIND command with invalid index name 5.3%
7. F/BR with index invalid in current DB 3.9%
8. 938 3.9%
9. DISPLAY command - middle of >1 screen 2.4%
10. 428 2.4%
11. All others 12.1%
Ten most frequent SHOW requests:
1. HISTORY 82.2%
2. SEARCH 8.2%
3. SETTINGS (Z39.50 DBS) 5.5%
4. GLOSSARY 2.7%
5. DATABASES 1.4%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)