MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/16/00 through 12/22/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 90 424 514
Davis 313 40 353
Irvine 92 0 92
Los Angeles 22 112 134
Riverside 60 3 63
San Diego 46 37 83
San Francisco 15 0 15
Santa Barbara 51 14 65
Santa Cruz 21 5 26
Other - UC 1 19 20
Other-Network UC n/a 1,013 1,013
_______ ______ _____
711 1,667 2,378
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 34 271
2-4 a.m. 4 8 13
4-6 a.m. 1 28 20
6-8 a.m. 28 96 840
8-10 a.m. 310 898 8,458
10-12 a.m. 550 1,514 10,311
12-2 p.m. 450 1,454 11,762
2-4 p.m. 476 1,478 15,319
4-6 p.m. 344 1,305 9,318
6-8 p.m. 147 689 6,257
8-10 p.m. 28 296 3,283
10-12 p.m. 33 91 821
__________ __________ __________ _________________
Total: 2,378 7,891 66,673
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 397 1,084 1,481
Davis 782 120 902
Irvine 269 0 269
Los Angeles 58 280 338
Riverside 255 28 283
San Diego 244 140 384
San Francisco 56 0 56
Santa Barbara 380 94 474
Santa Cruz 51 24 75
Other - UC 1 63 64
Other-Network UC n/a 3,565 3,565
_______ ______ _____
2,493 5,398 7,891
Number of FIND commands by database
WorldCat 6,986
Art Index 36
ArticleFirst 107
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 147
ProceedingsFirst Index 18
SocAbstracts 0
PAIS International 33
MLA Bibliography 517
RILM Index 47
Total number of FIND commands 7,891
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,078 11,148 13,226
Davis 4,836 954 5,790
Irvine 3,402 0 3,402
Los Angeles 465 3,744 4,209
Riverside 2,506 223 2,729
San Diego 1,449 2,555 4,004
San Francisco 543 0 543
Santa Barbara 2,185 413 2,598
Santa Cruz 489 247 736
Other - UC 0 817 817
Other-Network UC n/a 28,619 28,619
_______ ______ _____
17,953 48,720 66,673
Number of Records Displayed by database
WorldCat 58,427
Art Index 346
ArticleFirst 1,235
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 658
ProceedingsFirst Index 56
SocAbstracts 0
PAIS International 496
MLA Bibliography 3,998
RILM Index 1,457
Total number of Records Displayed 66,673
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 1,990 83.7%
Art Index 14 0.6%
ArticleFirst 85 3.6%
ContentsFirst 0 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 102 4.3%
ProceedingsFirst Index 26 1.1%
SocAbstracts 0 0.0%
PAIS International 6 0.3%
MLA Bibliography 137 5.8%
RILM Index 18 0.8%
Percent of searches done in the WCAT database 88.5%
Percent of searches done in the ART database 0.5%
Percent of searches done in the JRNL database 1.4%
Percent of searches done in the JRNLT database 0.0%
Percent of searches done in the EDUC database 0.0%
Percent of searches done in the GDOC database 0.0%
Percent of searches done in the PAPR database 1.9%
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 0.4%
Percent of searches done in the MLA database 6.6%
Percent of searches done in the RILM database 0.6%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 0.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:03
Average session length (minutes:seconds) 19:53
Longest session recorded (minutes:seconds) 300:10
Average number of searches completed per session 3.5
Retrievals per search - median 2.0
Retrievals per search - average 300.7
Retrievals per search - standard deviation 7094.9
Percent of searches completed with 0 results 24.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 6,333 33.6%
DISPLAY (excluding automatic displays) 8,686 46.0%
HELP 18 0.1%
EXPLAIN 50 0.3%
SET/RESET 1,390 7.4%
SHOW 28 0.1%
ADD ON (AND, OR, AND NOT) 653 3.5%
LOGON or LOGOFF 1,455 7.7%
COMMENT 0 0.0%
USE 6 0.0%
OTHER 249 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.5%
SHORT 38.7%
LONG 8.6%
TAGS 0.4%
FIELDS 7.7%
PERIODICALS 24.6%
COMMENTS 0.0%
Other 9.5%
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 1 0.0% 1 100% 0 0.0 0.0
EXACT TITLE 744 10.8% 160 21.5% 3 17.8 61.2
SUBJECT 206 3.0% 34 16.5% 68 1389.6 5216.4
EXACT SUBJECT 6 0.1% 2 33.3% 163 314.3 348.0
SERIES 83 1.2% 33 39.8% 9 153.2 590.5
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 15 0.2% 2 13.3% 123 758.9 1127.7
FORM 127 1.8% 28 22.0% 7 177.9 1452.1
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 1 0.0% 1 100% 0 0.0 0.0
NOTES 8 0.1% 1 12.5% 8 51.6 95.8
ACCESSION NUMBER 125 1.8% 4 3.2% 1 1.0 0.0
PLACE OF PUBL. 5 0.1% 0 0.0% 42 78.4 123.7
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 1 0.0% 0 0.0% 1 1.0 0.0
ISBN/ISSN/LCCN 346 5.0% 86 24.9% 1 2.6 5.6
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,409 20.4% 377 26.8% 4 82.7 713.4
EXACT PE 79 1.1% 22 27.8% 11 48.8 76.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 217 3.1% 41 18.9% 11 108.6 297.7
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 3,520 51.1% 858 24.4% 8 648.3 11391.9
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 541 8.5% 126 23.3% 6 108.8 763.3
Single 5,788 91.4% 1,393 24.1% 5 461.0 8935.2
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 9:32
Average session length (minutes:seconds) 9:57
Longest session recorded (minutes:seconds) 25:13
Average number of searches completed per session 2.6
Retrievals per search - median 2.0
Retrievals per search - average 416.4
Retrievals per search - standard deviation 2322.3
Percent of searches completed with 0 results 36.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 36 31.6%
DISPLAY (excluding automatic displays) 41 36.0%
HELP 5 4.4%
EXPLAIN 5 4.4%
SET/RESET 5 4.4%
SHOW 1 0.9%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 18 15.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 2.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.5%
SHORT 85.1%
LONG 4.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 2.1%
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 18 50.0% 5 27.8% 11 23.7 23.8
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 4 11.1% 2 50.0% 6 5.5 6.4
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 2.8% 0 0.0% 218 218.0 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 13 36.1% 6 46.2% 2 2064.7 5245.5
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 36 100% 13 36.1% 11 651.7 2901.6
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 5:00
Average session length (minutes:seconds) 11:07
Longest session recorded (minutes:seconds) 44:45
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 429.2
Retrievals per search - standard deviation 3953.4
Percent of searches completed with 0 results 33.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 104 34.0%
DISPLAY (excluding automatic displays) 78 25.5%
HELP 8 2.6%
EXPLAIN 8 2.6%
SET/RESET 76 24.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 1.0%
LOGON or LOGOFF 24 7.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 43.1%
LONG 0.0%
TAGS 0.0%
FIELDS 4.9%
PERIODICALS 41.2%
COMMENTS 0.0%
Other 1.0%
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 65 61.9% 26 40.0% 2 13.7 28.4
EXACT TITLE 1 1.0% 0 0.0% 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 14 13.3% 4 28.6% 85 4327.7 12857.7
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 18 17.1% 4 22.2% 30 124.9 267.4
EXACT PE 6 5.7% 2 33.3% 11 14.8 16.7
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 1 1.0% 0 0.0% 16 16.0 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 1 1.0% 0 0.0% 16 16.0 0.0
Single 103 99.0% 36 34.9% 5 680.7 4992.9
2.4 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 18:54
Average session length (minutes:seconds) 17:54
Longest session recorded (minutes:seconds) 33:29
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 24.4
Retrievals per search - standard deviation 82.8
Percent of searches completed with 0 results 46.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 136 37.6%
DISPLAY (excluding automatic displays) 97 26.8%
HELP 0 0.0%
EXPLAIN 1 0.3%
SET/RESET 93 25.7%
SHOW 2 0.6%
ADD ON (AND, OR, AND NOT) 11 3.0%
LOGON or LOGOFF 18 5.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.1%
SHORT 49.1%
LONG 12.1%
TAGS 0.0%
FIELDS 8.6%
PERIODICALS 14.7%
COMMENTS 0.0%
Other 3.4%
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 49 32.9% 13 26.5% 14 50.8 116.6
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 78 52.3% 51 65.4% 3 27.3 67.5
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 1.3% 0 0.0% 149 148.5 207.2
CONFERENCE 3 2.0% 2 66.7% 529 529.0 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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 2 1.3% 0 0.0% 50 49.5 54.4
DATE 3 2.0% 2 66.7% 7 7.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.7% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 11 7.4% 3 27.3% 4 13.6 24.6
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 13 9.6% 9 69.2% 8 8.3 4.6
Single 123 90.4% 54 43.9% 12 51.3 115.4
2.5 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 15:08
Average session length (minutes:seconds) 17:46
Longest session recorded (minutes:seconds) 44:10
Average number of searches completed per session 0.7
Retrievals per search - median 0.5
Retrievals per search - average 3.6
Retrievals per search - standard deviation 5.2
Percent of searches completed with 0 results 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 17 21.0%
DISPLAY (excluding automatic displays) 15 18.5%
HELP 2 2.5%
EXPLAIN 8 9.9%
SET/RESET 21 25.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 1.2%
LOGON or LOGOFF 12 14.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 6.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 47.1%
SHORT 5.9%
LONG 23.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 5.9%
COMMENTS 0.0%
Other 17.6%
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 6 35.3% 6 100% 0 0.0 0.0
CONFERENCE 10 58.8% 3 30.0% 10 8.7 5.1
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 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 1 5.9% 0 0.0% 3 3.0 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 17 100% 9 52.9% 8 8.0 5.1
2.6 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 13:52
Average session length (minutes:seconds) 15:48
Longest session recorded (minutes:seconds) 36:40
Average number of searches completed per session 5.5
Retrievals per search - median 13.0
Retrievals per search - average 776.1
Retrievals per search - standard deviation 2397.3
Percent of searches completed with 0 results 36.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 32 26.2%
DISPLAY (excluding automatic displays) 72 59.0%
HELP 2 1.6%
EXPLAIN 1 0.8%
SET/RESET 1 0.8%
SHOW 2 1.6%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 10 8.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 0.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 93.6%
LONG 2.6%
TAGS 0.0%
FIELDS 2.6%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.3%
PAIS International 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 5 15.6% 2 40.0% 7 7.0 6.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE 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 3 9.4% 0 0.0% 37 44.0 41.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 10 31.3% 2 20.0% 209 2589.6 4462.2
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 14 43.8% 8 57.1% 119 775.3 1194.9
EXACT SUBJECT 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
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN/LCCN 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 32 100% 12 37.5% 134 1276.1 3001.9
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:44
Average session length (minutes:seconds) 9:31
Longest session recorded (minutes:seconds) 87:13
Average number of searches completed per session 3.8
Retrievals per search - median 5.0
Retrievals per search - average 483.6
Retrievals per search - standard deviation 7185.3
Percent of searches completed with 0 results 31.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 463 41.3%
DISPLAY (excluding automatic displays) 307 27.4%
HELP 9 0.8%
EXPLAIN 11 1.0%
SET/RESET 64 5.7%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 54 4.8%
LOGON or LOGOFF 167 14.9%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 42 3.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.9%
SHORT 75.3%
LONG 10.8%
TAGS 1.1%
FIELDS 0.5%
PERIODICALS 2.9%
COMMENTS 0.0%
Other 1.6%
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 86 17.4% 15 17.4% 91 452.6 964.2
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 93 18.8% 34 36.6% 8 128.9 296.2
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 58 11.7% 25 43.1% 49 5770.2 28167.1
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 1.2% 3 50.0% 44 29.7 24.8
EXACT PE 5 1.0% 2 40.0% 1 8.0 12.1
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 247 49.9% 75 30.4% 12 201.0 1045.9
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 32 6.9% 1 3.1% 96 639.7 1235.6
Single 430 93.1% 152 35.3% 11 809.8 9775.0
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 9:52
Average session length (minutes:seconds) 8:56
Longest session recorded (minutes:seconds) 16:09
Average number of searches completed per session 2.6
Retrievals per search - median 28.0
Retrievals per search - average 1242.7
Retrievals per search - standard deviation 2542.2
Percent of searches completed with 0 results 17.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 39 23.1%
DISPLAY (excluding automatic displays) 86 50.9%
HELP 0 0.0%
EXPLAIN 1 0.6%
SET/RESET 5 3.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 8 4.7%
LOGON or LOGOFF 24 14.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 34.7%
SHORT 63.2%
LONG 2.1%
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 12 25.5% 2 16.7% 28 40.8 24.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 5 10.6% 1 20.0% 1 3.3 4.5
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 15 31.9% 2 13.3% 62 2658.5 3446.9
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 4.3% 0 0.0% 4 4.0 0.0
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 5 10.6% 0 0.0% 55 74.8 52.5
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 6 12.8% 3 50.0% 3 1862.7 3222.8
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 2 4.3% 0 0.0% 6,285 6285.0 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 8 20.5% 1 12.5% 62 1835.3 3039.8
Single 31 79.5% 6 19.4% 28 1113.1 2547.0
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.9%
Ten most frequent errors:
1. NS command - no next screen 29.5%
2. First word of command is invalid 18.2%
3. Z39.50 host cannot process command 10.8%
4. Too many truncated words to process 8.4%
5. FIND command with invalid index name 6.8%
6. DISPLAY command contains invalid word 5.5%
7. 945 3.1%
8. Index invalid in current database 2.4%
9. DISPLAY command - no FIND results 2.0%
10. Search term missing from search command 1.9%
11. All others 11.4%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 12.9%
2. FIND (Z39.50 DBS) 12.9%
3. INDEXES (WCAT DB) 12.9%
4. Unrecognized term-reminders off 8.2%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 7.1%
6. GUIDE: Z39.50 non-A&I DBS w/o truncation 5.9%
7. INDEXES (PROC DB) 4.7%
8. G233 3.5%
9. INDEXES (JRNL DB) 3.5%
10. G221 2.4%
11. All others 25.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 20.2%
2. F/BR with index invalid in current DB 19.4%
3. FIND command with zero results 15.5%
4. DISPLAY command-complete in one screen 10.1%
5. First word of command is invalid 6.2%
6. DISPLAY command-first of >1 screen 5.4%
7. FIND command with invalid index name 3.9%
8. 278 3.1%
9. 3 HELP commands issued from same code 2.3%
10. FIND command retrieves >1 book 2.3%
11. All others 11.6%
Ten most frequent SHOW requests:
1. HISTORY 85.7%
2. GLOSSARY 11.4%
3. LOCAL INFORMATION 2.9%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)