MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/03/01 through 03/09/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 131 635 766
Davis 408 76 484
Irvine 128 0 128
Los Angeles 13 168 181
Riverside 185 8 193
San Diego 74 48 122
San Francisco 34 0 34
Santa Barbara 45 48 93
Santa Cruz 33 14 47
Other - UC 0 16 16
Other-Network UC n/a 1,613 1,613
_______ ______ _____
1,051 2,626 3,677
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 161 1,834
2-4 a.m. 5 35 288
4-6 a.m. 5 28 150
6-8 a.m. 55 175 1,350
8-10 a.m. 459 1,644 12,998
10-12 a.m. 684 2,142 20,449
12-2 p.m. 565 1,802 17,492
2-4 p.m. 768 2,497 20,691
4-6 p.m. 689 2,572 19,739
6-8 p.m. 239 1,150 10,642
8-10 p.m. 163 1,506 15,261
10-12 p.m. 37 177 1,429
__________ __________ __________ _________________
Total: 3,677 13,889 122,323
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 306 2,211 2,517
Davis 1,114 431 1,545
Irvine 334 0 334
Los Angeles 34 443 477
Riverside 763 31 794
San Diego 205 188 393
San Francisco 131 0 131
Santa Barbara 118 137 255
Santa Cruz 46 32 78
Other - UC 0 26 26
Other-Network UC n/a 7,339 7,339
_______ ______ _____
3,051 10,838 13,889
Number of FIND commands by database
WorldCat 12,358
Art Index 148
ArticleFirst 270
ContentsFirst 12
ERIC 0
GPO 0
PapersFirst Index 201
ProceedingsFirst Index 10
SocAbstracts 0
PAIS International 0
MLA Bibliography 802
RILM Index 88
Total number of FIND commands 13,889
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,911 21,548 23,459
Davis 7,559 2,209 9,768
Irvine 1,957 0 1,957
Los Angeles 463 5,415 5,878
Riverside 8,278 152 8,430
San Diego 1,488 4,795 6,283
San Francisco 1,059 0 1,059
Santa Barbara 701 2,042 2,743
Santa Cruz 223 373 596
Other - UC 0 280 280
Other-Network UC n/a 61,870 61,870
_______ ______ _____
23,639 98,684 122,323
Number of Records Displayed by database
WorldCat 110,301
Art Index 545
ArticleFirst 2,586
ContentsFirst 86
ERIC 0
GPO 0
PapersFirst Index 811
ProceedingsFirst Index 51
SocAbstracts 0
PAIS International 0
MLA Bibliography 7,213
RILM Index 730
Total number of Records Displayed 122,323
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 3,008 81.8%
Art Index 47 1.3%
ArticleFirst 154 4.2%
ContentsFirst 14 0.4%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 152 4.1%
ProceedingsFirst Index 12 0.3%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 251 6.8%
RILM Index 39 1.1%
Percent of searches done in the WCAT database 89.0%
Percent of searches done in the ART database 1.1%
Percent of searches done in the JRNL database 1.9%
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 1.4%
Percent of searches done in the PROC database 0.1%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.0%
Percent of searches done in the MLA database 5.8%
Percent of searches done in the RILM database 0.6%
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 2.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:25
Average session length (minutes:seconds) 20:30
Longest session recorded (minutes:seconds) 242:10
Average number of searches completed per session 4.1
Retrievals per search - median 2.0
Retrievals per search - average 336.5
Retrievals per search - standard deviation 5694.8
Percent of searches completed with 0 results 24.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11,250 34.1%
DISPLAY (excluding automatic displays) 15,696 47.6%
HELP 27 0.1%
EXPLAIN 96 0.3%
SET/RESET 2,143 6.5%
SHOW 59 0.2%
ADD ON (AND, OR, AND NOT) 1,108 3.4%
LOGON or LOGOFF 2,143 6.5%
COMMENT 0 0.0%
USE 13 0.0%
OTHER 445 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.9%
SHORT 38.3%
LONG 7.8%
TAGS 0.5%
FIELDS 7.3%
PERIODICALS 26.6%
COMMENTS 0.0%
Other 10.7%
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 1,155 9.6% 304 26.3% 4 35.5 139.1
SUBJECT 411 3.4% 89 21.7% 24 1106.9 7319.4
EXACT SUBJECT 10 0.1% 4 40.0% 306 674.7 1190.3
SERIES 168 1.4% 60 35.7% 10 573.7 2463.1
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 51 0.4% 5 9.8% 14 34.1 45.0
LANGUAGE 10 0.1% 1 10.0% 43 5162.1 14972.3
FORM 161 1.3% 15 9.3% 10 156.7 1484.8
MUSIC PUBLISHER 4 0.0% 3 75.0% 1 1.0 0.0
REPORT NUMBER 4 0.0% 4 100% 0 0.0 0.0
NOTES 29 0.2% 5 17.2% 186 65185.4 78591.7
ACCESSION NUMBER 294 2.4% 12 4.1% 1 1.0 0.0
PLACE OF PUBL. 8 0.1% 1 12.5% 8 11.9 13.2
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 22 0.2% 16 72.7% 1 36.0 85.7
ISBN/ISSN/LCCN 891 7.4% 203 22.8% 1 3.9 14.1
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,583 21.4% 730 28.3% 5 88.3 1321.8
EXACT PE 291 2.4% 54 18.6% 6 21.9 50.3
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 324 2.7% 48 14.8% 8 214.4 2717.8
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,667 46.9% 1,447 25.5% 8 393.0 5075.9
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 767 6.8% 155 20.2% 7 142.5 1964.8
Single 10,473 93.2% 2,679 25.6% 5 487.8 6916.1
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:45
Average session length (minutes:seconds) 8:02
Longest session recorded (minutes:seconds) 33:04
Average number of searches completed per session 3.1
Retrievals per search - median 1.0
Retrievals per search - average 78.0
Retrievals per search - standard deviation 546.1
Percent of searches completed with 0 results 49.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 142 43.0%
DISPLAY (excluding automatic displays) 71 21.5%
HELP 11 3.3%
EXPLAIN 8 2.4%
SET/RESET 20 6.1%
SHOW 4 1.2%
ADD ON (AND, OR, AND NOT) 6 1.8%
LOGON or LOGOFF 58 17.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.0%
SHORT 84.0%
LONG 7.0%
TAGS 0.0%
FIELDS 1.0%
PERIODICALS 3.0%
COMMENTS 0.0%
Other 3.0%
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 32 22.2% 9 28.1% 9 27.8 32.9
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 75 52.1% 48 64.0% 13 370.5 1253.2
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 1 0.7% 0 0.0% 189 189.0 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 36 25.0% 15 41.7% 4 33.0 68.4
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 2 1.4% 2 100% 0 0.0 0.0
Single 140 98.6% 68 48.6% 13 160.1 777.2
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 16:43
Average session length (minutes:seconds) 26:48
Longest session recorded (minutes:seconds) 131:09
Average number of searches completed per session 1.8
Retrievals per search - median 2.0
Retrievals per search - average 82.0
Retrievals per search - standard deviation 684.6
Percent of searches completed with 0 results 32.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 253 31.1%
DISPLAY (excluding automatic displays) 287 35.3%
HELP 25 3.1%
EXPLAIN 32 3.9%
SET/RESET 142 17.4%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 17 2.1%
LOGON or LOGOFF 41 5.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 14 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 32.5%
LONG 3.0%
TAGS 0.9%
FIELDS 7.6%
PERIODICALS 44.1%
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 116 43.6% 50 43.1% 5 73.7 284.5
EXACT TITLE 3 1.1% 1 33.3% 4 4.0 1.4
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 13 4.9% 3 23.1% 191 244.3 372.2
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 77 28.9% 8 10.4% 5 31.4 70.1
EXACT PE 4 1.5% 0 0.0% 5 8.3 9.3
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 53 19.9% 23 43.4% 10 415.8 1989.8
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 13 5.1% 6 46.2% 5 4.7 3.6
Single 240 94.9% 73 30.4% 7 131.3 867.8
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 0.9
Retrievals per search - median 13.5
Retrievals per search - average 62.8
Retrievals per search - standard deviation 145.3
Percent of searches completed with 0 results 41.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11 25.6%
DISPLAY (excluding automatic displays) 13 30.2%
HELP 1 2.3%
EXPLAIN 3 7.0%
SET/RESET 14 32.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 2.3%
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 69.2%
SHORT 0.0%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 30.8%
ContentsFirst Database Statistics continued:
____________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
JOURNAL 6 54.5% 2 33.3% 29 40.8 32.9
EXACT JOURNAL 3 27.3% 2 66.7% 65 65.0 0.0
KEYWORD 2 18.2% 1 50.0% 515 515.0 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 11 100% 5 45.5% 50 123.8 193.6
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 12:53
Average session length (minutes:seconds) 27:23
Longest session recorded (minutes:seconds) 309:21
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 38.3
Retrievals per search - standard deviation 196.9
Percent of searches completed with 0 results 44.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 187 32.8%
DISPLAY (excluding automatic displays) 162 28.4%
HELP 7 1.2%
EXPLAIN 6 1.1%
SET/RESET 135 23.7%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 14 2.5%
LOGON or LOGOFF 41 7.2%
COMMENT 0 0.0%
USE 1 0.2%
OTHER 16 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.5%
SHORT 41.8%
LONG 7.0%
TAGS 0.5%
FIELDS 8.5%
PERIODICALS 23.9%
COMMENTS 0.0%
Other 9.0%
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 51 24.9% 21 41.2% 9 145.0 454.3
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 122 59.5% 71 58.2% 2 36.9 123.8
EXACT TITLE 2 1.0% 0 0.0% 1 1.0 0.0
KEYWORD 1 0.5% 1 100% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 1 0.5% 0 0.0% 53 53.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 3 1.5% 1 33.3% 4 3.5 2.1
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 22 10.7% 2 9.1% 5 66.9 162.3
EXACT PE 3 1.5% 0 0.0% 28 26.0 3.5
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 18 9.6% 12 66.7% 2 3.0 2.9
Single 169 90.4% 72 42.6% 4 79.1 278.4
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 2:17
Average session length (minutes:seconds) 20:57
Longest session recorded (minutes:seconds) 96:19
Average number of searches completed per session 0.8
Retrievals per search - median 2.0
Retrievals per search - average 4.1
Retrievals per search - standard deviation 5.7
Percent of searches completed with 0 results 22.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10 17.9%
DISPLAY (excluding automatic displays) 10 17.9%
HELP 3 5.4%
EXPLAIN 13 23.2%
SET/RESET 7 12.5%
SHOW 1 1.8%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 11 19.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 58.3%
SHORT 16.7%
LONG 25.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
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 11.1% 0 0.0% 1 1.0 0.0
CONFERENCE 6 66.7% 2 33.3% 3 5.0 6.1
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 2 22.2% 0 0.0% 8 8.0 8.5
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 9 100% 2 22.2% 2 5.3 6.0
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:13
Average session length (minutes:seconds) 8:10
Longest session recorded (minutes:seconds) 72:24
Average number of searches completed per session 3.2
Retrievals per search - median 3.0
Retrievals per search - average 62.7
Retrievals per search - standard deviation 409.4
Percent of searches completed with 0 results 30.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 789 40.1%
DISPLAY (excluding automatic displays) 511 26.0%
HELP 65 3.3%
EXPLAIN 62 3.2%
SET/RESET 81 4.1%
SHOW 8 0.4%
ADD ON (AND, OR, AND NOT) 13 0.7%
LOGON or LOGOFF 358 18.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 80 4.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.5%
SHORT 86.9%
LONG 8.1%
TAGS 0.7%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.7%
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 104 12.7% 35 33.7% 17 240.4 1069.9
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 282 34.4% 112 39.7% 6 99.2 503.3
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 93 11.4% 27 29.0% 14 193.4 470.2
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 3 0.4% 3 100% 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 337 41.1% 76 22.6% 8 27.6 81.8
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 31 3.9% 14 45.2% 7 198.1 670.3
Single 757 96.1% 225 29.7% 9 87.7 485.7
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 8:24
Average session length (minutes:seconds) 11:33
Longest session recorded (minutes:seconds) 52:10
Average number of searches completed per session 2.3
Retrievals per search - median 3.5
Retrievals per search - average 116.4
Retrievals per search - standard deviation 777.3
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 85 26.0%
DISPLAY (excluding automatic displays) 121 37.0%
HELP 14 4.3%
EXPLAIN 10 3.1%
SET/RESET 8 2.4%
SHOW 4 1.2%
ADD ON (AND, OR, AND NOT) 3 0.9%
LOGON or LOGOFF 66 20.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 16 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.4%
SHORT 89.0%
LONG 7.5%
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 32 36.8% 6 18.8% 7 14.8 16.4
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 4 4.6% 1 25.0% 5 8.0 6.1
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 14 16.1% 3 21.4% 15 681.5 2161.9
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 36 41.4% 10 27.8% 11 90.1 259.3
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 1.1% 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 2 2.4% 0 0.0% 8 8.0 7.1
Single 83 97.6% 21 25.3% 8 164.8 923.9
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 31.1%
2. First word of command is invalid 22.9%
3. DISPLAY command contains invalid word 7.6%
4. FIND command with invalid index name 6.4%
5. Too many truncated words to process 5.4%
6. Z39.50 host cannot process command 4.7%
7. Search term missing from search command 2.1%
8. PS command - no previous screen 2.0%
9. DISPLAY command - no FIND results 1.7%
10. Index invalid in current database 1.7%
11. All others 14.5%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 13.5%
2. LOCATE (Z39.50 DBS) 10.4%
3. INDEXES (WCAT DB) 8.7%
4. GUIDE (Z39.50 A&I DBS w/o truncation) 6.5%
5. LOCATE (Z39.50 DBS) 5.2%
6. FIND (Z39.50 DBS) 5.2%
7. COMMANDS (Z39.50 DBS) 4.8%
8. INDEXES (JRNL DB) 3.5%
9. GUIDE (ART DB) 3.0%
10. Unrecognized term-reminders off 3.0%
11. All others 36.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 25.3%
2. First word of command is invalid 15.1%
3. FIND command with zero results 6.5%
4. DISPLAY command-first of >1 screen 6.0%
5. F/BR with index invalid in current DB 5.2%
6. DISPLAY command-complete in one screen 5.0%
7. DISPLAY command - middle of >1 screen 5.0%
8. FIND command with invalid index name 4.7%
9. NS command - no next screen 2.6%
10. DISPLAY command - last of >1 screen 2.6%
11. All others 21.9%
Ten most frequent SHOW requests:
1. HISTORY 66.3%
2. SEARCH 18.8%
3. GLOSSARY 6.3%
4. SYSTEM NEWS 2.5%
5. SETTINGS (Z39.50 DBS) 1.3%
6. LIBRARY SETTINGS 1.3%
11. All others 3.8%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)