MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 02/17/01 through 02/23/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 99 472 571
Davis 270 59 329
Irvine 83 0 83
Los Angeles 11 139 150
Riverside 164 8 172
San Diego 70 22 92
San Francisco 21 0 21
Santa Barbara 50 21 71
Santa Cruz 40 13 53
Other - UC 2 15 17
Other-Network UC n/a 1,728 1,728
_______ ______ _____
810 2,477 3,287
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 14 137
2-4 a.m. 5 25 103
4-6 a.m. 3 37 270
6-8 a.m. 29 88 481
8-10 a.m. 373 1,232 7,644
10-12 a.m. 655 2,059 16,697
12-2 p.m. 572 1,577 11,176
2-4 p.m. 715 2,506 17,272
4-6 p.m. 565 2,146 18,756
6-8 p.m. 241 1,122 11,505
8-10 p.m. 96 933 8,015
10-12 p.m. 30 115 1,145
__________ __________ __________ _________________
Total: 3,287 11,854 93,201
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 304 1,651 1,955
Davis 675 123 798
Irvine 245 0 245
Los Angeles 22 656 678
Riverside 660 57 717
San Diego 416 37 453
San Francisco 84 0 84
Santa Barbara 155 58 213
Santa Cruz 81 37 118
Other - UC 2 28 30
Other-Network UC n/a 6,563 6,563
_______ ______ _____
2,644 9,210 11,854
Number of FIND commands by database
WorldCat 10,152
Art Index 170
ArticleFirst 329
ContentsFirst 18
ERIC 0
GPO 0
PapersFirst Index 270
ProceedingsFirst Index 37
SocAbstracts 0
PAIS International 0
MLA Bibliography 842
RILM Index 36
Total number of FIND commands 11,854
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,054 15,035 17,089
Davis 3,507 904 4,411
Irvine 1,965 0 1,965
Los Angeles 206 9,526 9,732
Riverside 6,876 271 7,147
San Diego 1,586 235 1,821
San Francisco 905 0 905
Santa Barbara 1,422 1,000 2,422
Santa Cruz 474 148 622
Other - UC 7 239 246
Other-Network UC n/a 46,841 46,841
_______ ______ _____
19,002 74,199 93,201
Number of Records Displayed by database
WorldCat 82,737
Art Index 1,266
ArticleFirst 1,519
ContentsFirst 138
ERIC 0
GPO 0
PapersFirst Index 1,151
ProceedingsFirst Index 423
SocAbstracts 0
PAIS International 0
MLA Bibliography 5,379
RILM Index 588
Total number of Records Displayed 93,201
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,539 77.2%
Art Index 70 2.1%
ArticleFirst 220 6.7%
ContentsFirst 17 0.5%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 184 5.6%
ProceedingsFirst Index 42 1.3%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 192 5.8%
RILM Index 23 0.7%
Percent of searches done in the WCAT database 85.6%
Percent of searches done in the ART database 1.4%
Percent of searches done in the JRNL database 2.8%
Percent of searches done in the JRNLT database 0.2%
Percent of searches done in the EDUC database 0.0%
Percent of searches done in the GDOC database 0.0%
Percent of searches done in the PAPR database 2.3%
Percent of searches done in the PROC database 0.3%
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 7.1%
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 1.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.8
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:43
Average session length (minutes:seconds) 21:44
Longest session recorded (minutes:seconds) 531:24
Average number of searches completed per session 4.0
Retrievals per search - median 2.0
Retrievals per search - average 210.5
Retrievals per search - standard deviation 4656.9
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,036 33.4%
DISPLAY (excluding automatic displays) 12,925 47.7%
HELP 35 0.1%
EXPLAIN 62 0.2%
SET/RESET 1,867 6.9%
SHOW 43 0.2%
ADD ON (AND, OR, AND NOT) 1,116 4.1%
LOGON or LOGOFF 1,664 6.1%
COMMENT 0 0.0%
USE 11 0.0%
OTHER 320 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 37.2%
LONG 6.3%
TAGS 0.8%
FIELDS 9.3%
PERIODICALS 25.3%
COMMENTS 0.0%
Other 9.8%
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 993 10.3% 253 25.5% 3 27.6 72.8
SUBJECT 235 2.4% 33 14.0% 54 1591.6 5173.1
EXACT SUBJECT 7 0.1% 2 28.6% 24 469.4 791.8
SERIES 104 1.1% 35 33.7% 6 54.2 152.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 19 0.2% 3 15.8% 29 42.6 49.7
LANGUAGE 10 0.1% 0 0.0% 46 65.7 64.7
FORM 138 1.4% 21 15.2% 14 212.7 1296.7
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% 23 58.3 99.0
ACCESSION NUMBER 206 2.1% 6 2.9% 1 1.0 0.0
PLACE OF PUBL. 4 0.0% 1 25.0% 1 10996.0 19043.9
UNIFORM TITLE 3 0.0% 0 0.0% 27 22.3 19.4
GOV DOC NUM 15 0.2% 8 53.3% 1 1.0 0.0
ISBN/ISSN/LCCN 621 6.4% 206 33.2% 2 3.7 6.7
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,090 21.6% 620 29.7% 4 64.9 876.4
EXACT PE 211 2.2% 38 18.0% 5 16.6 29.4
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 241 2.5% 42 17.4% 7 53.7 154.4
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,747 49.2% 1,190 25.1% 10 424.6 7696.7
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 601 6.7% 128 21.3% 6 80.3 655.4
Single 8,419 93.3% 2,198 26.1% 6 313.8 5928.3
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:25
Average session length (minutes:seconds) 7:30
Longest session recorded (minutes:seconds) 28:04
Average number of searches completed per session 2.4
Retrievals per search - median 4.5
Retrievals per search - average 222.1
Retrievals per search - standard deviation 1680.4
Percent of searches completed with 0 results 28.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 167 28.4%
DISPLAY (excluding automatic displays) 195 33.2%
HELP 30 5.1%
EXPLAIN 38 6.5%
SET/RESET 20 3.4%
SHOW 11 1.9%
ADD ON (AND, OR, AND NOT) 3 0.5%
LOGON or LOGOFF 101 17.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 22 3.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.7%
SHORT 92.1%
LONG 0.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 5.0%
COMMENTS 0.0%
Other 0.4%
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 19.9% 11 32.4% 5 9.5 9.7
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 51 29.8% 16 31.4% 33 346.7 1371.8
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 8 4.7% 2 25.0% 2 8.0 12.7
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 78 45.6% 22 28.2% 15 452.2 2716.8
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 4 2.4% 4 100% 0 0.0 0.0
Single 163 97.6% 43 26.4% 14 314.3 1995.2
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 15:04
Average session length (minutes:seconds) 21:50
Longest session recorded (minutes:seconds) 131:19
Average number of searches completed per session 1.5
Retrievals per search - median 2.0
Retrievals per search - average 136.0
Retrievals per search - standard deviation 1243.5
Percent of searches completed with 0 results 39.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 302 37.3%
DISPLAY (excluding automatic displays) 216 26.7%
HELP 1 0.1%
EXPLAIN 6 0.7%
SET/RESET 210 25.9%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 27 3.3%
LOGON or LOGOFF 32 4.0%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 12 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 29.2%
SHORT 46.5%
LONG 1.9%
TAGS 2.3%
FIELDS 5.4%
PERIODICALS 14.2%
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 201 60.4% 93 46.3% 5 97.4 505.2
EXACT TITLE 4 1.2% 2 50.0% 5 5.0 5.7
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 1.8% 1 16.7% 22 4682.6 9417.8
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 13 3.9% 1 7.7% 6 43.7 98.0
EXACT PE 2 0.6% 0 0.0% 2 1.5 0.7
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 107 32.1% 39 36.4% 6 131.7 527.7
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 31 10.3% 20 64.5% 2 8.0 17.7
Single 271 89.7% 96 35.4% 6 247.1 1698.6
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 9:15
Average session length (minutes:seconds) 9:50
Longest session recorded (minutes:seconds) 12:32
Average number of searches completed per session 1.1
Retrievals per search - median 0.0
Retrievals per search - average 62.8
Retrievals per search - standard deviation 152.8
Percent of searches completed with 0 results 55.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 18 28.6%
DISPLAY (excluding automatic displays) 14 22.2%
HELP 5 7.9%
EXPLAIN 5 7.9%
SET/RESET 17 27.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 4.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 75.0%
SHORT 12.5%
LONG 12.5%
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 15 83.3% 9 60.0% 70 154.7 240.1
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 11.1% 1 50.0% 13 13.0 0.0
SUBJECT 1 5.6% 0 0.0% 190 190.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 18 100% 10 55.6% 70 141.4 209.8
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 11:08
Average session length (minutes:seconds) 17:34
Longest session recorded (minutes:seconds) 124:30
Average number of searches completed per session 1.5
Retrievals per search - median 1.0
Retrievals per search - average 61.1
Retrievals per search - standard deviation 475.4
Percent of searches completed with 0 results 44.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 243 32.4%
DISPLAY (excluding automatic displays) 247 32.9%
HELP 6 0.8%
EXPLAIN 12 1.6%
SET/RESET 158 21.0%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 27 3.6%
LOGON or LOGOFF 46 6.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 15.1%
SHORT 43.3%
LONG 4.1%
TAGS 0.0%
FIELDS 15.1%
PERIODICALS 11.7%
COMMENTS 0.0%
Other 10.7%
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 89 30.8% 45 50.6% 6 31.8 80.6
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 170 58.8% 88 51.8% 3 51.2 153.3
EXACT TITLE 4 1.4% 3 75.0% 1 1.0 0.0
KEYWORD 4 1.4% 1 25.0% 272 2597.3 4254.7
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 6 2.1% 2 33.3% 652 674.3 448.4
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 3 1.0% 1 33.3% 27 27.0 36.8
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 12 4.2% 0 0.0% 9 31.6 55.7
EXACT PE 1 0.3% 0 0.0% 2 2.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 48 19.9% 35 72.9% 2 16.2 39.5
Single 193 80.1% 70 36.3% 6 130.9 696.6
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 4:10
Average session length (minutes:seconds) 35:37
Longest session recorded (minutes:seconds) 218:32
Average number of searches completed per session 0.9
Retrievals per search - median 1.0
Retrievals per search - average 13.3
Retrievals per search - standard deviation 40.5
Percent of searches completed with 0 results 43.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 36 20.9%
DISPLAY (excluding automatic displays) 67 39.0%
HELP 9 5.2%
EXPLAIN 7 4.1%
SET/RESET 35 20.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.6%
LOGON or LOGOFF 14 8.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 56.2%
SHORT 6.8%
LONG 28.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 8.2%
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 3 8.3% 2 66.7% 2 2.0 0.0
CONFERENCE 30 83.3% 11 36.7% 10 25.7 54.3
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 5.6% 2 100% 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 1 2.8% 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 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 36 100% 16 44.4% 9 24.5 53.1
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:39
Average session length (minutes:seconds) 9:07
Longest session recorded (minutes:seconds) 62:12
Average number of searches completed per session 4.4
Retrievals per search - median 6.0
Retrievals per search - average 114.4
Retrievals per search - standard deviation 855.9
Percent of searches completed with 0 results 25.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 764 44.9%
DISPLAY (excluding automatic displays) 401 23.6%
HELP 40 2.4%
EXPLAIN 34 2.0%
SET/RESET 77 4.5%
SHOW 5 0.3%
ADD ON (AND, OR, AND NOT) 78 4.6%
LOGON or LOGOFF 243 14.3%
COMMENT 0 0.0%
USE 2 0.1%
OTHER 58 3.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.0%
SHORT 82.7%
LONG 9.6%
TAGS 0.0%
FIELDS 0.2%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 1.7%
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 259 29.0% 48 18.5% 31 224.1 598.7
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 23.6% 80 37.9% 8 98.0 483.7
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 35 3.9% 5 14.3% 49 195.2 383.0
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 0.3% 0 0.0% 143 124.3 32.3
EXACT PE 2 0.2% 0 0.0% 9 8.5 9.2
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 383 42.9% 89 23.2% 10 137.0 1313.4
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 130 17.0% 21 16.2% 23 120.6 256.0
Single 633 83.0% 180 28.4% 11 177.4 1154.4
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:54
Average session length (minutes:seconds) 5:20
Longest session recorded (minutes:seconds) 23:43
Average number of searches completed per session 1.6
Retrievals per search - median 10.0
Retrievals per search - average 524.3
Retrievals per search - standard deviation 1718.9
Percent of searches completed with 0 results 16.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 36 29.0%
DISPLAY (excluding automatic displays) 41 33.1%
HELP 2 1.6%
EXPLAIN 2 1.6%
SET/RESET 5 4.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 34 27.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.5%
SHORT 91.3%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 2.2%
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 27.8% 1 10.0% 22 22.8 16.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 9 25.0% 3 33.3% 3 514.8 1254.2
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 7 19.4% 0 0.0% 225 2131.7 3462.1
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 10 27.8% 2 20.0% 68 82.1 91.6
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 36 100% 6 16.7% 23 629.1 1870.2
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 27.3%
2. First word of command is invalid 19.9%
3. DISPLAY command contains invalid word 10.5%
4. Z39.50 host cannot process command 7.0%
5. FIND command with invalid index name 6.5%
6. Too many truncated words to process 6.0%
7. Search term missing from search command 2.1%
8. Index invalid in current database 1.9%
9. PS command - no previous screen 1.8%
10. 945 1.2%
11. All others 15.8%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 13.3%
2. Unrecognized term-reminders off 10.2%
3. GUIDE: Z39.50 non-A&I DBS w/o truncation 7.2%
4. GUIDE (ART DB) 6.6%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 6.6%
6. INDEXES (WCAT DB) 5.4%
7. LOCATE (Z39.50 DBS) 4.8%
8. Unrecognized term 4.8%
9. FIND (Z39.50 DBS) 3.6%
10. INDEXES (PROC DB) 3.0%
11. All others 34.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.1%
2. First word of command is invalid 16.0%
3. DISPLAY command-first of >1 screen 8.2%
4. DISPLAY command-complete in one screen 7.1%
5. F/BR with index invalid in current DB 6.5%
6. FIND command with invalid index name 5.8%
7. FIND command with zero results 5.4%
8. DISPLAY command - middle of >1 screen 3.4%
9. NS command - no next screen 3.1%
10. F/BR command with invalid search term 1.7%
11. All others 19.7%
Ten most frequent SHOW requests:
1. HISTORY 71.4%
2. SEARCH 9.5%
3. GLOSSARY 7.9%
4. SETTINGS (Z39.50 DBS) 3.2%
5. OCLC/RLG STATISTICS DIRECTORY 1.6%
6. BIBLIOGRAPHIC SOFTWARE 1.6%
7. SYSTEM NEWS 1.6%
8. SYSTEM5 NEWS 1.6%
11. All others 1.6%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)