MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 11/18/00 through 11/24/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 125 349 474
Davis 275 46 321
Irvine 107 0 107
Los Angeles 17 151 168
Riverside 124 6 130
San Diego 68 37 105
San Francisco 16 0 16
Santa Barbara 57 25 82
Santa Cruz 33 6 39
Other - UC 0 22 22
Other-Network UC n/a 800 800
_______ ______ _____
822 1,442 2,264
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 28 139
2-4 a.m. 14 38 155
4-6 a.m. 2 1 54
6-8 a.m. 32 114 843
8-10 a.m. 292 883 7,586
10-12 a.m. 425 1,479 11,615
12-2 p.m. 376 1,601 12,232
2-4 p.m. 504 2,124 14,400
4-6 p.m. 385 1,539 13,440
6-8 p.m. 125 649 15,189
8-10 p.m. 81 494 4,474
10-12 p.m. 21 209 1,563
__________ __________ __________ _________________
Total: 2,264 9,159 81,690
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 494 1,134 1,628
Davis 557 281 838
Irvine 1,240 0 1,240
Los Angeles 50 472 522
Riverside 381 26 407
San Diego 252 55 307
San Francisco 86 0 86
Santa Barbara 458 51 509
Santa Cruz 80 13 93
Other - UC 0 58 58
Other-Network UC n/a 3,471 3,471
_______ ______ _____
3,598 5,561 9,159
Number of FIND commands by database
WorldCat 7,936
Art Index 67
ArticleFirst 110
ContentsFirst 11
ERIC 0
GPO 0
PapersFirst Index 128
ProceedingsFirst Index 28
SocAbstracts 0
PAIS International 96
MLA Bibliography 754
RILM Index 29
Total number of FIND commands 9,159
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3,289 11,334 14,623
Davis 10,914 1,320 12,234
Irvine 8,118 0 8,118
Los Angeles 280 3,399 3,679
Riverside 5,879 203 6,082
San Diego 1,435 682 2,117
San Francisco 730 0 730
Santa Barbara 2,604 432 3,036
Santa Cruz 705 169 874
Other - UC 0 449 449
Other-Network UC n/a 29,748 29,748
_______ ______ _____
33,954 47,736 81,690
Number of Records Displayed by database
WorldCat 73,106
Art Index 445
ArticleFirst 817
ContentsFirst 442
ERIC 0
GPO 0
PapersFirst Index 468
ProceedingsFirst Index 533
SocAbstracts 0
PAIS International 600
MLA Bibliography 5,008
RILM Index 271
Total number of Records Displayed 81,690
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 1,766 78.0%
Art Index 49 2.2%
ArticleFirst 73 3.2%
ContentsFirst 3 0.1%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 90 4.0%
ProceedingsFirst Index 23 1.0%
SocAbstracts 0 0.0%
PAIS International 30 1.3%
MLA Bibliography 218 9.6%
RILM Index 12 0.5%
Percent of searches done in the WCAT database 86.6%
Percent of searches done in the ART database 0.7%
Percent of searches done in the JRNL database 1.2%
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 1.4%
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 1.0%
Percent of searches done in the MLA database 8.2%
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 0.6
Standard deviation in seconds 1.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 1.0
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:15
Average session length (minutes:seconds) 19:51
Longest session recorded (minutes:seconds) 389:25
Average number of searches completed per session 4.5
Retrievals per search - median 2.0
Retrievals per search - average 502.3
Retrievals per search - standard deviation 15777
Percent of searches completed with 0 results 25.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,239 35.1%
DISPLAY (excluding automatic displays) 9,694 47.0%
HELP 30 0.1%
EXPLAIN 91 0.4%
SET/RESET 1,195 5.8%
SHOW 29 0.1%
ADD ON (AND, OR, AND NOT) 697 3.4%
LOGON or LOGOFF 1,356 6.6%
COMMENT 0 0.0%
USE 7 0.0%
OTHER 304 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 39.2%
LONG 7.3%
TAGS 0.3%
FIELDS 6.2%
PERIODICALS 25.4%
COMMENTS 0.0%
Other 10.5%
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT TITLE 1,349 16.6% 287 21.3% 4 20.2 65.8
SUBJECT 170 2.1% 34 20.0% 63 1339.3 2452.3
EXACT SUBJECT 2 0.0% 1 50.0% 8 8.0 0.0
SERIES 101 1.2% 46 45.5% 15 429.2 1403.9
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 38 0.5% 4 10.5% 1,132 2292.1 2653.4
FORM 104 1.3% 9 8.7% 13 787.9 1923.6
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 39 0.5% 20 51.3% 6 261.3 865.4
ACCESSION NUMBER 29 0.4% 1 3.4% 1 1.0 0.0
PLACE OF PUBL. 3 0.0% 0 0.0% 9,391 16347.7 20670.5
UNIFORM TITLE 5 0.1% 1 20.0% 5 7.3 7.8
GOV DOC NUM 3 0.0% 3 100% 0 0.0 0.0
ISBN/ISSN/LCCN 490 6.0% 111 22.7% 1 3.4 11.6
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,574 19.3% 484 30.7% 4 44.4 257.9
EXACT PE 77 0.9% 17 22.1% 6 14.9 24.3
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 428 5.3% 87 20.3% 6 7682.6 74868.5
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 3,724 45.8% 909 24.4% 10 343.9 4047.7
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 850 11.8% 178 20.9% 6 144.5 788.2
Single 6,384 88.2% 1,653 25.9% 5 803.2 20417.3
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:16
Average session length (minutes:seconds) 5:54
Longest session recorded (minutes:seconds) 60:36
Average number of searches completed per session 1.4
Retrievals per search - median 4.0
Retrievals per search - average 172.8
Retrievals per search - standard deviation 1046.9
Percent of searches completed with 0 results 37.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 67 25.3%
DISPLAY (excluding automatic displays) 60 22.6%
HELP 20 7.5%
EXPLAIN 13 4.9%
SET/RESET 15 5.7%
SHOW 3 1.1%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 73 27.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 14 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 94.6%
LONG 1.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 2.7%
COMMENTS 0.0%
Other 1.4%
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 10 14.7% 3 30.0% 12 13.4 12.8
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 36 52.9% 10 27.8% 21 431.1 1667.1
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 1 1.5% 0 0.0% 4 4.0 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 21 30.9% 13 61.9% 13 33.6 32.4
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 1 1.5% 1 100% 0 0.0 0.0
Single 66 98.5% 24 36.4% 13 275.6 1317.3
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:47
Average session length (minutes:seconds) 12:26
Longest session recorded (minutes:seconds) 46:34
Average number of searches completed per session 1.5
Retrievals per search - median 2.5
Retrievals per search - average 181.1
Retrievals per search - standard deviation 649.4
Percent of searches completed with 0 results 27.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 110 30.6%
DISPLAY (excluding automatic displays) 91 25.3%
HELP 26 7.2%
EXPLAIN 20 5.6%
SET/RESET 62 17.3%
SHOW 6 1.7%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 32 8.9%
COMMENT 0 0.0%
USE 3 0.8%
OTHER 9 2.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.6%
SHORT 50.0%
LONG 3.5%
TAGS 0.0%
FIELDS 1.8%
PERIODICALS 31.6%
COMMENTS 0.0%
Other 3.5%
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 72 64.9% 20 27.8% 7 124.9 349.0
EXACT TITLE 2 1.8% 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 15 13.5% 5 33.3% 39 1320.3 1670.4
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 16 14.4% 4 25.0% 4 17.3 31.9
EXACT PE 4 3.6% 0 0.0% 4 3.5 1.3
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 2 1.8% 2 100% 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 1 0.9% 1 100% 0 0.0 0.0
Single 109 99.1% 29 26.6% 5 249.0 751.5
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 27:55
Average session length (minutes:seconds) 27:55
Longest session recorded (minutes:seconds) 27:55
Average number of searches completed per session 3.7
Retrievals per search - median 0.0
Retrievals per search - average 272.5
Retrievals per search - standard deviation 568.3
Percent of searches completed with 0 results 54.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11 26.2%
DISPLAY (excluding automatic displays) 13 30.9%
HELP 7 16.7%
EXPLAIN 5 11.9%
SET/RESET 2 4.8%
SHOW 2 4.8%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 2 4.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 46.7%
SHORT 0.0%
LONG 33.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 20.0%
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 5 45.5% 2 40.0% 1,421 966.3 787.5
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 5 45.5% 4 80.0% 38 38.0 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 1 9.1% 0 0.0% 61 61.0 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 11 100% 6 54.5% 61 599.6 749.9
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 5:20
Average session length (minutes:seconds) 7:07
Longest session recorded (minutes:seconds) 18:33
Average number of searches completed per session 1.4
Retrievals per search - median 0.0
Retrievals per search - average 33.3
Retrievals per search - standard deviation 150.3
Percent of searches completed with 0 results 50.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 116 37.3%
DISPLAY (excluding automatic displays) 62 19.9%
HELP 4 1.3%
EXPLAIN 7 2.3%
SET/RESET 80 25.7%
SHOW 2 0.6%
ADD ON (AND, OR, AND NOT) 12 3.9%
LOGON or LOGOFF 23 7.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.9%
SHORT 57.1%
LONG 7.1%
TAGS 1.2%
FIELDS 9.5%
PERIODICALS 3.6%
COMMENTS 0.0%
Other 9.5%
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 52 40.3% 21 40.4% 6 76.6 202.2
EXACT AUTHOR 1 0.8% 1 100% 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 64 49.6% 33 51.6% 2 15.3 43.4
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 1 0.8% 1 100% 0 0.0 0.0
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 0.8% 1 100% 0 0.0 0.0
EXACT JOURNAL 1 0.8% 0 0.0% 1,233 1233.0 0.0
DATE 5 3.9% 2 40.0% 11 8.0 5.2
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.8% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 3 2.3% 2 66.7% 129 129.0 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 13 11.2% 6 46.2% 1 4.0 4.8
Single 103 88.8% 50 48.5% 6 78.8 227.0
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 11:22
Average session length (minutes:seconds) 15:36
Longest session recorded (minutes:seconds) 31:35
Average number of searches completed per session 1.2
Retrievals per search - median 3.5
Retrievals per search - average 9.3
Retrievals per search - standard deviation 18.4
Percent of searches completed with 0 results 28.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 27 17.0%
DISPLAY (excluding automatic displays) 81 50.9%
HELP 10 6.3%
EXPLAIN 10 6.3%
SET/RESET 18 11.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.6%
LOGON or LOGOFF 10 6.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 44.8%
SHORT 14.9%
LONG 27.6%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 5.7%
COMMENTS 0.0%
Other 6.9%
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 11.1% 0 0.0% 54 47.3 41.4
CONFERENCE 14 51.9% 5 35.7% 6 6.7 6.4
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 2 7.4% 1 50.0% 9 9.0 0.0
SUBJECT 4 14.8% 1 25.0% 5 9.0 10.6
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 4 14.8% 1 25.0% 4 5.7 2.9
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 27 100% 8 29.6% 6 13.4 21.2
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 5:46
Average session length (minutes:seconds) 7:09
Longest session recorded (minutes:seconds) 21:26
Average number of searches completed per session 3.2
Retrievals per search - median 0.0
Retrievals per search - average 173.9
Retrievals per search - standard deviation 791.7
Percent of searches completed with 0 results 53.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 91 28.4%
DISPLAY (excluding automatic displays) 120 37.5%
HELP 12 3.7%
EXPLAIN 19 5.9%
SET/RESET 6 1.9%
SHOW 5 1.6%
ADD ON (AND, OR, AND NOT) 5 1.6%
LOGON or LOGOFF 46 14.4%
COMMENT 0 0.0%
USE 1 0.3%
OTHER 15 4.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.7%
SHORT 82.2%
LONG 8.9%
TAGS 0.0%
FIELDS 1.5%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 3.7%
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 26 28.6% 13 50.0% 4 5.8 6.9
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 33 36.3% 21 63.6% 53 671.6 1055.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 15 16.5% 4 26.7% 6 60.6 80.4
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 9 9.9% 6 66.7% 179 2304.0 3762.3
EXACT SUBJECT 6 6.6% 5 83.3% 642 642.0 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 1 1.1% 1 100% 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 1.1% 0 0.0% 146 146.0 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 91 100% 50 54.9% 6 402.5 1181.0
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:59
Average session length (minutes:seconds) 13:38
Longest session recorded (minutes:seconds) 443:59
Average number of searches completed per session 3.5
Retrievals per search - median 4.0
Retrievals per search - average 125.0
Retrievals per search - standard deviation 1146.0
Percent of searches completed with 0 results 25.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 723 41.2%
DISPLAY (excluding automatic displays) 489 27.9%
HELP 44 2.5%
EXPLAIN 51 2.9%
SET/RESET 93 5.3%
SHOW 9 0.5%
ADD ON (AND, OR, AND NOT) 31 1.8%
LOGON or LOGOFF 262 14.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 52 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.7%
SHORT 85.1%
LONG 8.3%
TAGS 0.0%
FIELDS 0.8%
PERIODICALS 1.7%
COMMENTS 0.0%
Other 1.4%
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 153 20.5% 36 23.5% 12 334.4 2059.5
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 273 36.6% 83 30.4% 5 77.3 367.2
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 49 6.6% 21 42.9% 58 176.2 306.5
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 6 0.8% 0 0.0% 2 2.0 1.3
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 264 35.4% 45 17.0% 8 160.9 1450.2
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 23 3.2% 3 13.0% 8 59.7 126.8
Single 699 96.8% 179 25.6% 8 176.2 1375.8
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:25
Average session length (minutes:seconds) 7:40
Longest session recorded (minutes:seconds) 24:55
Average number of searches completed per session 2.4
Retrievals per search - median 2.0
Retrievals per search - average 67.1
Retrievals per search - standard deviation 186.2
Percent of searches completed with 0 results 31.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 27 31.0%
DISPLAY (excluding automatic displays) 22 25.3%
HELP 5 5.7%
EXPLAIN 4 4.6%
SET/RESET 2 2.3%
SHOW 1 1.1%
ADD ON (AND, OR, AND NOT) 2 2.3%
LOGON or LOGOFF 21 24.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 3.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 22.2%
SHORT 74.1%
LONG 3.7%
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 31.3% 4 40.0% 1 105.2 233.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 15 46.9% 9 60.0% 23 151.0 331.9
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 9.4% 0 0.0% 40 28.0 20.8
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 9.4% 0 0.0% 57 106.3 136.8
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 1 3.1% 0 0.0% 4 4.0 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 5 18.5% 4 80.0% 4 4.0 0.0
Single 22 81.5% 5 22.7% 28 113.9 234.7
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 26.6%
2. First word of command is invalid 19.5%
3. Z39.50 host cannot process command 8.1%
4. Too many truncated words to process 7.4%
5. FIND command with invalid index name 6.6%
6. DISPLAY command contains invalid word 5.1%
7. Index invalid in current database 3.1%
8. PS command - no previous screen 2.4%
9. 945 2.1%
10. DISPLAY command - no FIND results 1.4%
11. All others 17.7%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 11.8%
2. GUIDE (Z39.50 A&I DBS w/o truncation) 10.0%
3. GUIDE: Z39.50 non-A&I DBS w/o truncation 9.1%
4. INDEXES (WCAT DB) 7.3%
5. FIND (Z39.50 DBS) 5.5%
6. Unrecognized term 5.5%
7. LOCATE (Z39.50 DBS) 5.0%
8. GUIDE (ART DB) 4.1%
9. Unrecognized term-reminders off 4.1%
10. GUIDE (PAIS/SOC DBS) 2.7%
11. All others 35.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.6%
2. First word of command is invalid 13.5%
3. DISPLAY command-complete in one screen 6.9%
4. FIND command with invalid index name 6.1%
5. F/BR with index invalid in current DB 5.6%
6. FIND command with zero results 4.8%
7. DISPLAY command - last of >1 screen 4.8%
8. DISPLAY command - middle of >1 screen 4.5%
9. FIND command retrieves >1 book 3.4%
10. DISPLAY command-first of >1 screen 3.2%
11. All others 17.7%
Ten most frequent SHOW requests:
1. HISTORY 45.6%
2. GLOSSARY 12.3%
3. SEARCH 12.3%
4. SETTINGS (Z39.50 DBS) 8.8%
5. TIMEOUT SETTING 5.3%
6. Z39.50 NEWS 3.5%
7. SYSTEM NEWS 3.5%
8. TIME 1.8%
9. DISPLAY 1.8%
11. All others 5.3%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)