MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 02/10/01 through 02/16/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 151 593 744
Davis 237 38 275
Irvine 95 0 95
Los Angeles 7 148 155
Riverside 188 13 201
San Diego 93 28 121
San Francisco 29 0 29
Santa Barbara 51 34 85
Santa Cruz 42 20 62
Other - UC 0 23 23
Other-Network UC n/a 1,614 1,614
_______ ______ _____
893 2,511 3,404
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 11 79 439
2-4 a.m. 2 7 75
4-6 a.m. 1 0 0
6-8 a.m. 31 118 706
8-10 a.m. 334 1,215 9,419
10-12 a.m. 744 2,250 17,863
12-2 p.m. 645 1,908 15,768
2-4 p.m. 652 2,237 19,097
4-6 p.m. 614 2,227 18,303
6-8 p.m. 258 1,242 10,806
8-10 p.m. 77 690 5,759
10-12 p.m. 35 139 1,065
__________ __________ __________ _________________
Total: 3,404 12,112 99,300
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 577 1,976 2,553
Davis 507 84 591
Irvine 248 0 248
Los Angeles 71 450 521
Riverside 732 108 840
San Diego 291 53 344
San Francisco 154 0 154
Santa Barbara 167 267 434
Santa Cruz 75 50 125
Other - UC 0 164 164
Other-Network UC n/a 6,138 6,138
_______ ______ _____
2,822 9,290 12,112
Number of FIND commands by database
WorldCat 10,543
Art Index 126
ArticleFirst 305
ContentsFirst 16
ERIC 0
GPO 0
PapersFirst Index 240
ProceedingsFirst Index 67
SocAbstracts 0
PAIS International 0
MLA Bibliography 780
RILM Index 35
Total number of FIND commands 12,112
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3,162 13,932 17,094
Davis 3,657 1,449 5,106
Irvine 4,681 0 4,681
Los Angeles 567 4,998 5,565
Riverside 10,169 638 10,807
San Diego 2,425 214 2,639
San Francisco 1,408 0 1,408
Santa Barbara 1,463 2,085 3,548
Santa Cruz 501 279 780
Other - UC 0 2,682 2,682
Other-Network UC n/a 44,990 44,990
_______ ______ _____
28,033 71,267 99,300
Number of Records Displayed by database
WorldCat 87,354
Art Index 638
ArticleFirst 1,419
ContentsFirst 103
ERIC 0
GPO 0
PapersFirst Index 874
ProceedingsFirst Index 703
SocAbstracts 0
PAIS International 0
MLA Bibliography 7,888
RILM Index 321
Total number of Records Displayed 99,300
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,700 79.3%
Art Index 59 1.7%
ArticleFirst 195 5.7%
ContentsFirst 7 0.2%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 146 4.3%
ProceedingsFirst Index 70 2.1%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 213 6.3%
RILM Index 14 0.4%
Percent of searches done in the WCAT database 87.0%
Percent of searches done in the ART database 1.0%
Percent of searches done in the JRNL database 2.5%
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 2.0%
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 6.4%
Percent of searches done in the RILM database 0.3%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 3.6
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) 13:36
Average session length (minutes:seconds) 20:30
Longest session recorded (minutes:seconds) 265:02
Average number of searches completed per session 3.9
Retrievals per search - median 2.0
Retrievals per search - average 218.0
Retrievals per search - standard deviation 4456.2
Percent of searches completed with 0 results 24.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,651 33.5%
DISPLAY (excluding automatic displays) 13,809 48.0%
HELP 63 0.2%
EXPLAIN 123 0.4%
SET/RESET 1,919 6.7%
SHOW 39 0.1%
ADD ON (AND, OR, AND NOT) 892 3.1%
LOGON or LOGOFF 1,895 6.6%
COMMENT 0 0.0%
USE 7 0.0%
OTHER 380 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.5%
SHORT 39.4%
LONG 8.4%
TAGS 0.2%
FIELDS 8.6%
PERIODICALS 23.0%
COMMENTS 0.0%
Other 9.9%
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 2 0.0% 2 100% 0 0.0 0.0
EXACT TITLE 781 7.5% 202 25.9% 3 24.9 74.1
SUBJECT 354 3.4% 72 20.3% 27 957.0 3551.2
EXACT SUBJECT 27 0.3% 14 51.9% 455 521.6 538.2
SERIES 164 1.6% 55 33.5% 6 4115.7 26554.7
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 13 0.1% 3 23.1% 30 290.6 718.1
FORM 127 1.2% 18 14.2% 10 165.5 1124.4
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 13 0.1% 1 7.7% 16 156.6 379.4
ACCESSION NUMBER 176 1.7% 14 8.0% 1 1.0 0.0
PLACE OF PUBL. 4 0.0% 0 0.0% 3 2.8 1.5
UNIFORM TITLE 2 0.0% 0 0.0% 249 249.0 0.0
GOV DOC NUM 19 0.2% 10 52.6% 1 1.0 0.0
ISBN/ISSN/LCCN 592 5.7% 187 31.6% 1 6.6 35.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,016 19.4% 557 27.6% 4 42.8 292.4
EXACT PE 168 1.6% 37 22.0% 6 58.1 299.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 359 3.5% 71 19.8% 4 42.1 167.4
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,586 53.7% 1,368 24.5% 7 341.7 5492.3
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 711 7.4% 149 21.0% 4 54.2 504.2
Single 8,936 92.6% 2,303 25.8% 5 335.1 5610.6
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:15
Average session length (minutes:seconds) 6:49
Longest session recorded (minutes:seconds) 43:45
Average number of searches completed per session 2.1
Retrievals per search - median 1.0
Retrievals per search - average 79.4
Retrievals per search - standard deviation 419.0
Percent of searches completed with 0 results 46.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 122 28.0%
DISPLAY (excluding automatic displays) 174 39.9%
HELP 17 3.9%
EXPLAIN 13 3.0%
SET/RESET 25 5.7%
SHOW 2 0.5%
ADD ON (AND, OR, AND NOT) 4 0.9%
LOGON or LOGOFF 66 15.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 13 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.1%
SHORT 89.2%
LONG 5.6%
TAGS 0.0%
FIELDS 3.1%
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 34 27.2% 16 47.1% 25 29.2 32.8
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 52 41.6% 23 44.2% 13 286.6 845.0
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 39 31.2% 22 56.4% 12 54.9 118.5
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 3 2.5% 3 100% 0 0.0 0.0
Single 119 97.5% 55 46.2% 13 152.7 580.0
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 12:55
Average session length (minutes:seconds) 13:51
Longest session recorded (minutes:seconds) 48:57
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 100.5
Retrievals per search - standard deviation 1105.2
Percent of searches completed with 0 results 35.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 280 37.0%
DISPLAY (excluding automatic displays) 202 26.7%
HELP 11 1.5%
EXPLAIN 7 0.9%
SET/RESET 183 24.2%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 25 3.3%
LOGON or LOGOFF 37 4.9%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 10 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 19.1%
SHORT 51.6%
LONG 2.3%
TAGS 1.2%
FIELDS 4.3%
PERIODICALS 21.5%
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 175 55.9% 73 41.7% 5 36.8 128.4
EXACT TITLE 1 0.3% 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 8 2.6% 4 50.0% 4 1065.8 2125.5
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 29 9.3% 3 10.3% 2 11.8 32.1
EXACT PE 13 4.2% 0 0.0% 5 15.7 23.6
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 87 27.8% 32 36.8% 10 399.1 2525.7
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 34 12.2% 18 52.9% 3 5.8 7.6
Single 245 87.8% 77 31.4% 6 180.3 1483.8
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 10:26
Average session length (minutes:seconds) 8:54
Longest session recorded (minutes:seconds) 14:28
Average number of searches completed per session 2.3
Retrievals per search - median 0.0
Retrievals per search - average 2.6
Retrievals per search - standard deviation 8.7
Percent of searches completed with 0 results 68.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 16 32.7%
DISPLAY (excluding automatic displays) 5 10.2%
HELP 7 14.3%
EXPLAIN 7 14.3%
SET/RESET 4 8.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 8 16.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 4.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 50.0%
SHORT 0.0%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 50.0%
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 1 6.3% 1 100% 0 0.0 0.0
EXACT JOURNAL 1 6.3% 1 100% 0 0.0 0.0
KEYWORD 1 6.3% 0 0.0% 3 3.0 0.0
SUBJECT 8 50.0% 7 87.5% 35 35.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 2 12.5% 2 100% 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 3 18.8% 0 0.0% 1 1.0 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 16 100% 11 68.8% 1 8.2 15.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 18:43
Average session length (minutes:seconds) 37:21
Longest session recorded (minutes:seconds) 167:07
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 11.9
Retrievals per search - standard deviation 52.8
Percent of searches completed with 0 results 44.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 225 40.3%
DISPLAY (excluding automatic displays) 146 26.1%
HELP 3 0.5%
EXPLAIN 0 0.0%
SET/RESET 139 24.9%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 15 2.7%
LOGON or LOGOFF 21 3.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 16.6%
SHORT 33.7%
LONG 4.7%
TAGS 0.0%
FIELDS 7.3%
PERIODICALS 33.7%
COMMENTS 0.0%
Other 4.1%
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 60 23.7% 26 43.3% 8 35.0 106.9
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 48.2% 69 56.6% 2 21.6 67.6
EXACT TITLE 1 0.4% 0 0.0% 12 12.0 0.0
KEYWORD 11 4.3% 6 54.5% 41 27.6 21.7
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 0.4% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 6 2.4% 5 83.3% 1 1.0 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 1 0.4% 0 0.0% 54 54.0 0.0
PERIODICAL 43 17.0% 5 11.6% 4 7.2 9.2
EXACT PE 8 3.2% 0 0.0% 2 4.1 5.0
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 28 12.5% 17 60.7% 1 8.5 16.0
Single 196 87.5% 78 39.8% 4 22.6 73.3
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 15:38
Average session length (minutes:seconds) 89:04
Longest session recorded (minutes:seconds) 226:34
Average number of searches completed per session 1.0
Retrievals per search - median 2.0
Retrievals per search - average 12.3
Retrievals per search - standard deviation 46.1
Percent of searches completed with 0 results 26.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 66 21.0%
DISPLAY (excluding automatic displays) 163 51.9%
HELP 5 1.6%
EXPLAIN 3 1.0%
SET/RESET 68 21.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.3%
LOGON or LOGOFF 7 2.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 0.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 42.2%
SHORT 0.6%
LONG 31.7%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 12.2%
COMMENTS 0.0%
Other 13.3%
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 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 55 83.3% 16 29.1% 4 17.8 57.9
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 1 1.5% 0 0.0% 9 9.0 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 9 13.6% 1 11.1% 4 15.4 35.0
EXACT PE 1 1.5% 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 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 66 100% 17 25.8% 4 16.9 53.3
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 6:50
Average session length (minutes:seconds) 11:07
Longest session recorded (minutes:seconds) 112:28
Average number of searches completed per session 3.6
Retrievals per search - median 3.0
Retrievals per search - average 1539.3
Retrievals per search - standard deviation 15000
Percent of searches completed with 0 results 33.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 736 42.8%
DISPLAY (excluding automatic displays) 446 25.9%
HELP 24 1.4%
EXPLAIN 58 3.4%
SET/RESET 84 4.9%
SHOW 8 0.5%
ADD ON (AND, OR, AND NOT) 44 2.6%
LOGON or LOGOFF 265 15.4%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 55 3.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.1%
SHORT 78.3%
LONG 9.9%
TAGS 0.0%
FIELDS 6.0%
PERIODICALS 0.3%
COMMENTS 0.0%
Other 1.3%
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 143 18.7% 49 34.3% 24 12038.1 41615.6
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 167 21.9% 84 50.3% 3 36.5 105.9
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 96 12.6% 24 25.0% 17 138.0 470.4
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 2 0.3% 0 0.0% 176 175.5 197.3
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 1 0.1% 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 354 46.3% 106 29.9% 10 177.7 1827.6
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 34 4.7% 13 38.2% 3 80.9 228.3
Single 695 95.3% 237 34.1% 12 2588.6 19426.4
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 5:33
Average session length (minutes:seconds) 6:28
Longest session recorded (minutes:seconds) 17:56
Average number of searches completed per session 2.5
Retrievals per search - median 3.0
Retrievals per search - average 238.7
Retrievals per search - standard deviation 1214.3
Percent of searches completed with 0 results 31.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 33 33.0%
DISPLAY (excluding automatic displays) 37 37.0%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 3 3.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 2.0%
LOGON or LOGOFF 23 23.0%
COMMENT 0 0.0%
USE 1 1.0%
OTHER 1 1.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 88.9%
LONG 11.1%
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 10 30.3% 1 10.0% 13 33.4 58.3
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 10 30.3% 3 30.0% 9 50.3 84.9
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 3 9.1% 0 0.0% 463 2555.3 4027.2
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 6 18.2% 3 50.0% 7 11.3 13.1
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 4 12.1% 3 75.0% 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 33 100% 10 30.3% 10 363.2 1493.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.3%
Ten most frequent errors:
1. NS command - no next screen 28.6%
2. First word of command is invalid 23.3%
3. DISPLAY command contains invalid word 8.4%
4. Z39.50 host cannot process command 7.8%
5. FIND command with invalid index name 7.4%
6. Too many truncated words to process 5.1%
7. PS command - no previous screen 2.0%
8. Index invalid in current database 1.9%
9. Search term missing from search command 1.4%
10. DISPLAY command - no FIND results 1.2%
11. All others 12.7%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 13.7%
2. INDEXES (WCAT DB) 9.5%
3. GUIDE (Z39.50 A&I DBS w/o truncation) 9.5%
4. Unrecognized term-reminders off 7.6%
5. FIND (Z39.50 DBS) 7.1%
6. GUIDE: Z39.50 non-A&I DBS w/o truncation 6.6%
7. LOCATE (Z39.50 DBS) 4.3%
8. DISPLAY (Z39.50 non-A&I DBS) 3.3%
9. GUIDE (ART DB) 3.3%
10. INDEXES (MLA DB) 3.3%
11. All others 31.8%
Ten most frequent HELP situations:
1. First word of command is invalid 21.1%
2. Help requested from SET DB command 21.1%
3. FIND command with zero results 7.0%
4. DISPLAY command-complete in one screen 7.0%
5. DISPLAY command-first of >1 screen 6.2%
6. FIND command with invalid index name 5.9%
7. FIND command retrieves 1 book 5.6%
8. F/BR with index invalid in current DB 3.8%
9. DISPLAY command - last of >1 screen 2.6%
10. DISPLAY command - middle of >1 screen 2.3%
11. All others 17.3%
Ten most frequent SHOW requests:
1. HISTORY 66.7%
2. GLOSSARY 9.8%
3. SEARCH 7.8%
4. SETTINGS (Z39.50 DBS) 3.9%
5. 2292 3.9%
6. Z39.50 NEWS 2.0%
7. 0420 2.0%
8. SYSTEM NEWS 2.0%
9. FIND DISPLAY 2.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)