MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/10/01 through 03/16/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 129 551 680
Davis 412 76 488
Irvine 115 0 115
Los Angeles 8 137 145
Riverside 170 16 186
San Diego 79 78 157
San Francisco 33 0 33
Santa Barbara 44 16 60
Santa Cruz 43 13 56
Other - UC 1 20 21
Other-Network UC n/a 1,676 1,676
_______ ______ _____
1,034 2,583 3,617
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 20 84 217
2-4 a.m. 2 21 140
4-6 a.m. 0 0 0
6-8 a.m. 35 129 1,045
8-10 a.m. 429 1,261 11,835
10-12 a.m. 663 1,967 16,797
12-2 p.m. 592 1,812 12,223
2-4 p.m. 758 2,304 18,143
4-6 p.m. 632 2,308 18,643
6-8 p.m. 308 1,246 11,969
8-10 p.m. 139 1,096 11,049
10-12 p.m. 39 206 1,798
__________ __________ __________ _________________
Total: 3,617 12,434 103,859
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 322 1,717 2,039
Davis 906 174 1,080
Irvine 234 0 234
Los Angeles 39 519 558
Riverside 666 76 742
San Diego 227 280 507
San Francisco 251 0 251
Santa Barbara 101 100 201
Santa Cruz 85 87 172
Other - UC 2 43 45
Other-Network UC n/a 6,605 6,605
_______ ______ _____
2,833 9,601 12,434
Number of FIND commands by database
WorldCat 10,932
Art Index 74
ArticleFirst 241
ContentsFirst 13
ERIC 0
GPO 0
PapersFirst Index 337
ProceedingsFirst Index 21
SocAbstracts 0
PAIS International 0
MLA Bibliography 764
RILM Index 52
Total number of FIND commands 12,434
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,197 15,380 17,577
Davis 7,221 1,383 8,604
Irvine 1,762 0 1,762
Los Angeles 654 6,234 6,888
Riverside 7,090 452 7,542
San Diego 1,703 3,010 4,713
San Francisco 1,701 0 1,701
Santa Barbara 1,097 1,301 2,398
Santa Cruz 953 450 1,403
Other - UC 18 148 166
Other-Network UC n/a 51,105 51,105
_______ ______ _____
24,396 79,463 103,859
Number of Records Displayed by database
WorldCat 93,569
Art Index 350
ArticleFirst 1,690
ContentsFirst 181
ERIC 0
GPO 0
PapersFirst Index 1,033
ProceedingsFirst Index 198
SocAbstracts 0
PAIS International 0
MLA Bibliography 6,220
RILM Index 618
Total number of Records Displayed 103,859
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,912 80.5%
Art Index 48 1.3%
ArticleFirst 149 4.1%
ContentsFirst 19 0.5%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 212 5.9%
ProceedingsFirst Index 15 0.4%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 230 6.4%
RILM Index 32 0.9%
Percent of searches done in the WCAT database 87.9%
Percent of searches done in the ART database 0.6%
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 2.7%
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 6.1%
Percent of searches done in the RILM database 0.4%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
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 0.6
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:06
Average session length (minutes:seconds) 21:16
Longest session recorded (minutes:seconds) 1077
Average number of searches completed per session 3.8
Retrievals per search - median 2.0
Retrievals per search - average 258.6
Retrievals per search - standard deviation 10437
Percent of searches completed with 0 results 26.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,872 33.1%
DISPLAY (excluding automatic displays) 14,132 47.4%
HELP 53 0.2%
EXPLAIN 80 0.3%
SET/RESET 2,061 6.9%
SHOW 61 0.2%
ADD ON (AND, OR, AND NOT) 1,060 3.6%
LOGON or LOGOFF 2,077 7.0%
COMMENT 0 0.0%
USE 14 0.0%
OTHER 393 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 38.6%
LONG 8.0%
TAGS 0.5%
FIELDS 7.8%
PERIODICALS 24.7%
COMMENTS 0.0%
Other 10.6%
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 1,048 9.9% 238 22.7% 4 56.2 499.6
SUBJECT 287 2.7% 37 12.9% 46 1039.3 4021.6
EXACT SUBJECT 6 0.1% 3 50.0% 91 94.3 95.0
SERIES 129 1.2% 43 33.3% 9 145.8 684.4
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 42 0.4% 6 14.3% 15 57.1 68.5
LANGUAGE 6 0.1% 0 0.0% 55 77.2 73.1
FORM 146 1.4% 25 17.1% 19 88.1 218.9
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 31 0.3% 6 19.4% 7 141.8 398.6
ACCESSION NUMBER 217 2.1% 15 6.9% 1 1.0 0.0
PLACE OF PUBL. 18 0.2% 8 44.4% 6 1144.7 3562.3
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 24 0.2% 19 79.2% 1 1.4 0.9
ISBN/ISSN/LCCN 748 7.1% 216 28.9% 1 11.3 116.3
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,320 22.0% 799 34.4% 5 108.7 1720.3
EXACT PE 207 2.0% 46 22.2% 6 46.9 233.5
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 252 2.4% 44 17.5% 5 32.8 94.1
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,075 48.1% 1,293 25.5% 8 598.0 17661.9
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 649 6.6% 133 20.5% 6 40.9 126.4
Single 9,211 93.4% 2,517 27.3% 5 410.9 13327.8
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 10:53
Average session length (minutes:seconds) 12:52
Longest session recorded (minutes:seconds) 70:54
Average number of searches completed per session 1.5
Retrievals per search - median 1.0
Retrievals per search - average 25.4
Retrievals per search - standard deviation 69.6
Percent of searches completed with 0 results 44.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 73 24.9%
DISPLAY (excluding automatic displays) 104 35.5%
HELP 16 5.5%
EXPLAIN 8 2.7%
SET/RESET 23 7.8%
SHOW 4 1.4%
ADD ON (AND, OR, AND NOT) 1 0.3%
LOGON or LOGOFF 55 18.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.7%
SHORT 89.0%
LONG 4.2%
TAGS 0.0%
FIELDS 3.4%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.7%
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 18 23.7% 9 50.0% 2 3.6 4.2
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 20 26.3% 9 45.0% 2 25.6 66.8
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 1.3% 1 100% 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 37 48.7% 15 40.5% 16 71.8 106.1
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 4.1% 2 66.7% 11 11.0 0.0
Single 70 95.9% 30 42.9% 5 46.8 89.8
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:23
Average session length (minutes:seconds) 15:11
Longest session recorded (minutes:seconds) 62:34
Average number of searches completed per session 1.6
Retrievals per search - median 2.0
Retrievals per search - average 186.4
Retrievals per search - standard deviation 1626.6
Percent of searches completed with 0 results 34.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 218 34.4%
DISPLAY (excluding automatic displays) 214 33.8%
HELP 6 0.9%
EXPLAIN 3 0.5%
SET/RESET 140 22.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 23 3.6%
LOGON or LOGOFF 27 4.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 0.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.6%
SHORT 45.8%
LONG 3.8%
TAGS 0.0%
FIELDS 6.5%
PERIODICALS 31.3%
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 135 54.9% 56 41.5% 5 339.9 2489.1
EXACT TITLE 2 0.8% 1 50.0% 3 3.0 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 2.4% 3 50.0% 779 4253.0 6671.0
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 40 16.3% 7 17.5% 7 35.6 82.7
EXACT PE 5 2.0% 0 0.0% 6 10.8 12.6
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 58 23.6% 22 37.9% 12 123.8 447.8
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 28 12.8% 14 50.0% 5 33.3 80.3
Single 190 87.2% 61 32.1% 9 343.9 2215.0
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 5:28
Average session length (minutes:seconds) 5:28
Longest session recorded (minutes:seconds) 5:28
Average number of searches completed per session 0.7
Retrievals per search - median 95.0
Retrievals per search - average 80.7
Retrievals per search - standard deviation 95.4
Percent of searches completed with 0 results 46.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 13 26.0%
DISPLAY (excluding automatic displays) 8 16.0%
HELP 6 12.0%
EXPLAIN 2 4.0%
SET/RESET 17 34.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 6.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.0%
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 4 30.8% 1 25.0% 102 158.0 97.0
EXACT JOURNAL 4 30.8% 1 25.0% 100 106.0 14.9
KEYWORD 2 15.4% 2 100% 0 0.0 0.0
SUBJECT 3 23.1% 2 66.7% 257 257.0 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 13 100% 6 46.2% 102 149.9 78.2
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 11:21
Average session length (minutes:seconds) 14:45
Longest session recorded (minutes:seconds) 106:59
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 120.5
Retrievals per search - standard deviation 854.3
Percent of searches completed with 0 results 45.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 308 38.2%
DISPLAY (excluding automatic displays) 180 22.3%
HELP 5 0.6%
EXPLAIN 10 1.2%
SET/RESET 182 22.6%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 29 3.6%
LOGON or LOGOFF 71 8.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 18 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 17.5%
SHORT 50.4%
LONG 4.3%
TAGS 0.0%
FIELDS 6.8%
PERIODICALS 13.2%
COMMENTS 0.0%
Other 7.7%
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 114 32.7% 36 31.6% 18 322.0 1522.6
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 180 51.6% 100 55.6% 4 26.6 67.3
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 8 2.3% 6 75.0% 1,142 1141.5 1579.0
CONFERENCE 7 2.0% 1 14.3% 76 1567.7 2892.9
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 0.3% 1 100% 0 0.0 0.0
EXACT JOURNAL 3 0.9% 2 66.7% 5 5.0 0.0
DATE 16 4.6% 9 56.3% 31 500.9 828.1
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 4.6% 4 25.0% 4 101.9 317.7
EXACT PE 4 1.1% 0 0.0% 4 102.0 198.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 40 13.0% 20 50.0% 3 177.6 525.2
Single 268 87.0% 118 44.0% 9 246.5 1256.2
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 3:24
Average session length (minutes:seconds) 3:38
Longest session recorded (minutes:seconds) 7:12
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 16.3
Retrievals per search - standard deviation 38.6
Percent of searches completed with 0 results 38.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 21 21.0%
DISPLAY (excluding automatic displays) 27 27.0%
HELP 15 15.0%
EXPLAIN 13 13.0%
SET/RESET 8 8.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 12 12.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 4.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 75.8%
SHORT 6.1%
LONG 18.2%
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 5 23.8% 2 40.0% 1 2.3 2.3
CONFERENCE 12 57.1% 4 33.3% 12 20.3 18.7
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 4 19.0% 2 50.0% 87 86.5 120.9
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 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 21 100% 8 38.1% 5 26.3 46.9
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:40
Average session length (minutes:seconds) 8:13
Longest session recorded (minutes:seconds) 40:12
Average number of searches completed per session 3.3
Retrievals per search - median 3.0
Retrievals per search - average 50.5
Retrievals per search - standard deviation 258.9
Percent of searches completed with 0 results 34.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 738 42.8%
DISPLAY (excluding automatic displays) 437 25.3%
HELP 32 1.9%
EXPLAIN 48 2.8%
SET/RESET 96 5.6%
SHOW 3 0.2%
ADD ON (AND, OR, AND NOT) 26 1.5%
LOGON or LOGOFF 284 16.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 60 3.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.1%
SHORT 82.2%
LONG 9.3%
TAGS 0.4%
FIELDS 0.7%
PERIODICALS 0.5%
COMMENTS 0.0%
Other 0.9%
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 195 25.1% 63 32.3% 32 156.3 539.0
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 211 27.2% 91 43.1% 8 39.5 71.2
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 41 5.3% 12 29.3% 21 194.6 372.6
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 3 0.4% 1 33.3% 8 8.0 8.5
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 326 42.0% 106 32.5% 12 69.6 397.1
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 38 5.1% 13 34.2% 80 334.6 1057.2
Single 700 94.8% 247 35.3% 12 65.4 217.9
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:34
Average session length (minutes:seconds) 7:32
Longest session recorded (minutes:seconds) 25:43
Average number of searches completed per session 1.6
Retrievals per search - median 9.0
Retrievals per search - average 525.8
Retrievals per search - standard deviation 1748.1
Percent of searches completed with 0 results 23.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 49 23.1%
DISPLAY (excluding automatic displays) 74 34.9%
HELP 17 8.0%
EXPLAIN 3 1.4%
SET/RESET 12 5.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 1.4%
LOGON or LOGOFF 46 21.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 3.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.4%
SHORT 88.6%
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 11 21.2% 0 0.0% 17 17.3 12.9
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 11 21.2% 5 45.5% 11 162.0 320.8
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 16 30.8% 2 12.5% 40 1628.0 3057.4
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 14 26.9% 5 35.7% 9 381.4 1096.4
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 3 6.1% 0 0.0% 17 16.3 1.2
Single 46 93.9% 12 26.1% 25 802.6 2120.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.5%
Ten most frequent errors:
1. NS command - no next screen 29.1%
2. First word of command is invalid 18.6%
3. Z39.50 host cannot process command 13.7%
4. FIND command with invalid index name 6.6%
5. Too many truncated words to process 5.8%
6. DISPLAY command contains invalid word 5.5%
7. Search term missing from search command 1.8%
8. DISPLAY command - no FIND results 1.8%
9. Index invalid in current database 1.7%
10. PS command - no previous screen 1.6%
11. All others 13.7%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 13.2%
2. LOCATE (Z39.50 DBS) 12.6%
3. LOCATE (Z39.50 DBS) 12.6%
4. INDEXES (WCAT DB) 9.0%
5. Unrecognized term 6.6%
6. G508 4.2%
7. INDEXES (PROC DB) 4.2%
8. FIND (Z39.50 DBS) 4.2%
9. COMMANDS (Z39.50 DBS) 3.0%
10. G985 3.0%
11. All others 27.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.4%
2. First word of command is invalid 19.9%
3. DISPLAY command-complete in one screen 7.9%
4. FIND command with invalid index name 6.9%
5. DISPLAY command-first of >1 screen 6.0%
6. DISPLAY command - middle of >1 screen 6.0%
7. FIND command with zero results 5.4%
8. F/BR with index invalid in current DB 5.4%
9. FIND command retrieves 1 book 3.2%
10. NS command - no next screen 1.9%
11. All others 15.1%
Ten most frequent SHOW requests:
1. HISTORY 80.3%
2. GLOSSARY 8.5%
3. SEARCH 4.2%
4. SYSTEM NEWS 2.8%
5. SETTINGS (Z39.50 DBS) 1.4%
6. SYSTEM5 NEWS 1.4%
7. LIBRARY NEWS 1.4%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)