MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 02/24/01 through 03/02/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 145 517 662
Davis 294 78 372
Irvine 68 0 68
Los Angeles 4 109 113
Riverside 162 4 166
San Diego 65 18 83
San Francisco 49 0 49
Santa Barbara 60 28 88
Santa Cruz 40 7 47
Other - UC 0 17 17
Other-Network UC n/a 1,476 1,476
_______ ______ _____
887 2,254 3,141
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 34 1,454
2-4 a.m. 1 20 186
4-6 a.m. 5 16 135
6-8 a.m. 26 133 781
8-10 a.m. 299 1,023 8,216
10-12 a.m. 585 1,968 13,922
12-2 p.m. 566 1,804 13,589
2-4 p.m. 720 2,287 18,356
4-6 p.m. 571 2,302 21,993
6-8 p.m. 231 1,176 12,495
8-10 p.m. 95 725 8,171
10-12 p.m. 37 207 2,315
__________ __________ __________ _________________
Total: 3,141 11,695 101,613
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 333 1,820 2,153
Davis 786 159 945
Irvine 299 0 299
Los Angeles 8 336 344
Riverside 753 12 765
San Diego 168 24 192
San Francisco 120 0 120
Santa Barbara 164 107 271
Santa Cruz 142 25 167
Other - UC 0 56 56
Other-Network UC n/a 6,383 6,383
_______ ______ _____
2,773 8,922 11,695
Number of FIND commands by database
WorldCat 10,255
Art Index 85
ArticleFirst 239
ContentsFirst 13
ERIC 0
GPO 0
PapersFirst Index 240
ProceedingsFirst Index 79
SocAbstracts 0
PAIS International 0
MLA Bibliography 722
RILM Index 62
Total number of FIND commands 11,695
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,919 16,968 18,887
Davis 8,046 1,000 9,046
Irvine 4,204 0 4,204
Los Angeles 33 3,722 3,755
Riverside 5,854 110 5,964
San Diego 1,000 154 1,154
San Francisco 1,082 0 1,082
Santa Barbara 1,406 932 2,338
Santa Cruz 812 208 1,020
Other - UC 0 370 370
Other-Network UC n/a 53,793 53,793
_______ ______ _____
24,356 77,257 101,613
Number of Records Displayed by database
WorldCat 89,715
Art Index 454
ArticleFirst 1,886
ContentsFirst 156
ERIC 0
GPO 0
PapersFirst Index 825
ProceedingsFirst Index 727
SocAbstracts 0
PAIS International 0
MLA Bibliography 7,238
RILM Index 612
Total number of Records Displayed 101,613
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,443 77.8%
Art Index 42 1.3%
ArticleFirst 159 5.1%
ContentsFirst 19 0.6%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 172 5.5%
ProceedingsFirst Index 64 2.0%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 217 6.9%
RILM Index 25 0.8%
Percent of searches done in the WCAT database 87.7%
Percent of searches done in the ART database 0.7%
Percent of searches done in the JRNL database 2.0%
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 2.1%
Percent of searches done in the PROC database 0.7%
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 6.2%
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 1.2
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) 14:14
Average session length (minutes:seconds) 22:14
Longest session recorded (minutes:seconds) 443:22
Average number of searches completed per session 4.2
Retrievals per search - median 3.0
Retrievals per search - average 459.6
Retrievals per search - standard deviation 9810.5
Percent of searches completed with 0 results 23.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,109 33.0%
DISPLAY (excluding automatic displays) 13,315 48.3%
HELP 48 0.2%
EXPLAIN 73 0.3%
SET/RESET 1,721 6.2%
SHOW 40 0.1%
ADD ON (AND, OR, AND NOT) 1,146 4.2%
LOGON or LOGOFF 1,787 6.5%
COMMENT 0 0.0%
USE 12 0.0%
OTHER 311 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.9%
SHORT 39.1%
LONG 7.3%
TAGS 0.5%
FIELDS 9.2%
PERIODICALS 25.2%
COMMENTS 0.0%
Other 8.8%
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 862 8.8% 206 23.9% 4 45.7 555.6
SUBJECT 327 3.4% 46 14.1% 58 763.2 2497.0
EXACT SUBJECT 29 0.3% 13 44.8% 117 1735.4 3202.1
SERIES 138 1.4% 46 33.3% 7 71.1 263.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 18 0.2% 2 11.1% 33 37.3 35.0
LANGUAGE 33 0.3% 1 3.0% 34 56.3 67.5
FORM 130 1.3% 23 17.7% 10 46.7 160.9
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 40 0.4% 7 17.5% 151 70971.4 126668
ACCESSION NUMBER 217 2.2% 11 5.1% 1 1.0 0.0
PLACE OF PUBL. 5 0.1% 1 20.0% 26 36.0 42.2
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 25 0.3% 12 48.0% 1 1.0 0.0
ISBN/ISSN/LCCN 758 7.8% 245 32.3% 1 3.6 10.1
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,981 20.3% 524 26.4% 4 66.2 915.8
EXACT PE 202 2.1% 25 12.4% 5 22.8 77.4
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 260 2.7% 39 15.0% 7 39.7 126.2
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,734 48.5% 1,173 24.8% 9 495.1 8868.6
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 610 6.7% 132 21.6% 7 35.7 116.6
Single 8,489 93.3% 2,104 24.8% 5 699.7 12268.8
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:30
Average session length (minutes:seconds) 5:35
Longest session recorded (minutes:seconds) 16:36
Average number of searches completed per session 2.0
Retrievals per search - median 1.0
Retrievals per search - average 120.7
Retrievals per search - standard deviation 816.3
Percent of searches completed with 0 results 42.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 84 37.7%
DISPLAY (excluding automatic displays) 46 20.6%
HELP 9 4.0%
EXPLAIN 6 2.7%
SET/RESET 24 10.8%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 1 0.4%
LOGON or LOGOFF 41 18.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.6%
SHORT 95.1%
LONG 3.3%
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 15 17.9% 5 33.3% 7 37.9 77.0
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
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 39 46.4% 16 41.0% 108 65.9 59.2
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 30 35.7% 15 50.0% 2 557.5 1932.8
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 84 100% 36 42.9% 8 213.7 1081.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:26
Average session length (minutes:seconds) 17:38
Longest session recorded (minutes:seconds) 79:51
Average number of searches completed per session 1.5
Retrievals per search - median 2.0
Retrievals per search - average 217.8
Retrievals per search - standard deviation 1052.5
Percent of searches completed with 0 results 35.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 214 32.7%
DISPLAY (excluding automatic displays) 205 31.3%
HELP 10 1.5%
EXPLAIN 10 1.5%
SET/RESET 147 22.5%
SHOW 2 0.3%
ADD ON (AND, OR, AND NOT) 25 3.8%
LOGON or LOGOFF 32 4.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.9%
SHORT 52.8%
LONG 3.2%
TAGS 0.0%
FIELDS 11.7%
PERIODICALS 18.9%
COMMENTS 0.0%
Other 0.4%
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 133 55.4% 52 39.1% 7 429.7 1545.8
EXACT TITLE 3 1.2% 2 66.7% 1 1.0 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 2 0.8% 0 0.0% 2,104 2103.5 2874.4
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 24 10.0% 3 12.5% 9 40.0 120.6
EXACT PE 2 0.8% 0 0.0% 13 12.5 13.4
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 76 31.7% 24 31.6% 10 235.7 975.7
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 26 12.1% 13 50.0% 2 13.5 32.1
Single 188 87.8% 55 29.3% 10 389.3 1389.3
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 80:24
Average session length (minutes:seconds) 80:24
Longest session recorded (minutes:seconds) 141:54
Average number of searches completed per session 0.7
Retrievals per search - median 0.0
Retrievals per search - average 286.0
Retrievals per search - standard deviation 755.8
Percent of searches completed with 0 results 53.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 13 28.9%
DISPLAY (excluding automatic displays) 10 22.2%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 18 40.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 6.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 80.0%
SHORT 0.0%
LONG 20.0%
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 11 84.6% 6 54.5% 216 659.0 1179.9
EXACT JOURNAL 2 15.4% 1 50.0% 423 423.0 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 13 100% 7 53.8% 233 619.7 1059.7
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 13:17
Average session length (minutes:seconds) 13:44
Longest session recorded (minutes:seconds) 33:59
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 683.0
Retrievals per search - standard deviation 8424.7
Percent of searches completed with 0 results 44.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 214 31.6%
DISPLAY (excluding automatic displays) 201 29.6%
HELP 6 0.9%
EXPLAIN 19 2.8%
SET/RESET 162 23.9%
SHOW 12 1.8%
ADD ON (AND, OR, AND NOT) 26 3.8%
LOGON or LOGOFF 28 4.1%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 9 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.6%
SHORT 40.8%
LONG 8.0%
TAGS 2.5%
FIELDS 14.3%
PERIODICALS 13.9%
COMMENTS 0.0%
Other 8.0%
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 66 27.0% 21 31.8% 5 2941.1 19216.5
EXACT AUTHOR 1 0.4% 0 0.0% 148 148.0 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 132 54.1% 77 58.3% 3 395.9 2426.6
EXACT TITLE 2 0.8% 0 0.0% 1 1.0 0.0
KEYWORD 16 6.6% 0 0.0% 29 427.9 1528.9
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 4 1.6% 3 75.0% 1,170 1170.0 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 2 0.8% 1 50.0% 22 22.0 0.0
DATE 4 1.6% 1 25.0% 6 281.0 480.7
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 1 0.4% 1 100% 0 0.0 0.0
PERIODICAL 9 3.7% 2 22.2% 2 6.1 11.0
EXACT PE 6 2.5% 0 0.0% 10 28.0 50.8
RPE 1 0.4% 0 0.0% 1 1.0 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 31 14.6% 14 45.2% 3 51.6 202.1
Single 182 85.4% 78 42.9% 14 1553.9 12752.9
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 8:24
Average session length (minutes:seconds) 19:11
Longest session recorded (minutes:seconds) 172:43
Average number of searches completed per session 1.2
Retrievals per search - median 2.0
Retrievals per search - average 34.1
Retrievals per search - standard deviation 221.3
Percent of searches completed with 0 results 31.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 77 20.2%
DISPLAY (excluding automatic displays) 140 36.7%
HELP 19 5.0%
EXPLAIN 43 11.3%
SET/RESET 56 14.7%
SHOW 4 1.0%
ADD ON (AND, OR, AND NOT) 2 0.5%
LOGON or LOGOFF 34 8.9%
COMMENT 0 0.0%
USE 1 0.3%
OTHER 5 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 49.3%
SHORT 11.0%
LONG 26.6%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 2.6%
COMMENTS 0.0%
Other 10.4%
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 2 2.5% 0 0.0% 1,001 1001.0 1367.5
KEYWORD 26 32.9% 7 26.9% 5 9.9 18.5
CONFERENCE 40 50.6% 16 40.0% 3 5.5 6.1
CONFERENCE PLACE 1 1.3% 0 0.0% 34 34.0 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 4 5.1% 1 25.0% 83 83.0 0.0
JOURNAL 2 2.5% 1 50.0% 82 82.0 0.0
SUBJECT 2 2.5% 0 0.0% 1 1.0 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 1.3% 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 1 1.3% 0 0.0% 25 25.0 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 2 2.6% 1 50.0% 34 34.0 0.0
Single 75 97.4% 24 32.0% 5 51.9 274.7
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:57
Average session length (minutes:seconds) 7:44
Longest session recorded (minutes:seconds) 57:44
Average number of searches completed per session 3.3
Retrievals per search - median 2.0
Retrievals per search - average 228.6
Retrievals per search - standard deviation 3092.6
Percent of searches completed with 0 results 34.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 709 41.6%
DISPLAY (excluding automatic displays) 413 24.3%
HELP 44 2.6%
EXPLAIN 54 3.2%
SET/RESET 84 4.9%
SHOW 10 0.6%
ADD ON (AND, OR, AND NOT) 13 0.8%
LOGON or LOGOFF 296 17.4%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 79 4.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 80.2%
LONG 11.3%
TAGS 1.3%
FIELDS 1.5%
PERIODICALS 1.6%
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 186 25.9% 49 26.3% 19 328.2 836.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 128 17.9% 58 45.3% 5 61.2 252.0
SERIES 1 0.1% 1 100% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 95 13.2% 30 31.6% 10 69.4 163.5
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 6 0.8% 1 16.7% 2 2.4 2.1
EXACT PE 2 0.3% 0 0.0% 1 1.0 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 299 41.7% 108 36.1% 8 178.9 1336.7
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 11 1.6% 2 18.2% 3 454.9 785.0
Single 695 98.4% 243 35.0% 11 176.5 981.6
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:22
Average session length (minutes:seconds) 7:07
Longest session recorded (minutes:seconds) 26:14
Average number of searches completed per session 2.5
Retrievals per search - median 12.0
Retrievals per search - average 303.1
Retrievals per search - standard deviation 1286.4
Percent of searches completed with 0 results 30.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 60 29.7%
DISPLAY (excluding automatic displays) 80 39.6%
HELP 5 2.5%
EXPLAIN 7 3.5%
SET/RESET 9 4.5%
SHOW 1 0.5%
ADD ON (AND, OR, AND NOT) 2 1.0%
LOGON or LOGOFF 33 16.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 2.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.3%
SHORT 76.6%
LONG 13.8%
TAGS 0.0%
FIELDS 3.2%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.1%
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 24 38.7% 8 33.3% 22 25.2 22.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 8 12.9% 1 12.5% 11 14.7 12.8
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 8 12.9% 1 12.5% 18 2066.6 3505.4
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 18 29.0% 6 33.3% 153 313.7 406.3
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 1 1.6% 0 0.0% 1 1.0 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 1 1.6% 0 0.0% 407 407.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1 1.6% 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 1 1.6% 0 0.0% 59 59.0 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 3.3% 0 0.0% 205 204.5 286.4
Single 58 96.7% 17 29.3% 28 448.4 1567.1
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 31.2%
2. First word of command is invalid 20.8%
3. Z39.50 host cannot process command 8.4%
4. DISPLAY command contains invalid word 7.5%
5. FIND command with invalid index name 6.1%
6. Too many truncated words to process 4.8%
7. Index invalid in current database 1.8%
8. Search term missing from search command 1.8%
9. PS command - no previous screen 1.3%
10. DISPLAY command - no FIND results 1.3%
11. All others 15.1%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 7.5%
2. G500 7.5%
3. Unrecognized term 7.5%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 7.1%
5. LOCATE (Z39.50 DBS) 5.7%
6. FIND (Z39.50 DBS) 5.7%
7. INDEXES (PROC DB) 4.7%
8. Unrecognized term-reminders off 4.7%
9. COMMANDS (Z39.50 DBS) 3.8%
10. INDEXES (WCAT DB) 3.8%
11. All others 42.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.6%
2. First word of command is invalid 11.3%
3. F/BR with index invalid in current DB 8.2%
4. DISPLAY command-complete in one screen 7.9%
5. DISPLAY command-first of >1 screen 6.5%
6. FIND command with invalid index name 5.4%
7. FIND command retrieves 1 book 4.2%
8. DISPLAY command - middle of >1 screen 3.7%
9. FIND command with zero results 3.4%
10. NS command - no next screen 3.1%
11. All others 21.5%
Ten most frequent SHOW requests:
1. HISTORY 54.3%
2. GLOSSARY 11.4%
3. SEARCH 7.1%
4. SETTINGS (Z39.50 DBS) 5.7%
5. LIBRARY LOCATIONS 5.7%
6. STATISTICS 4.3%
7. 1837 2.9%
8. Z39.50 NEWS 1.4%
9. OCLC/RLG STATISTICS DIRECTORY 1.4%
10. TIME 1.4%
11. All others 4.3%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)