MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 06/09/01 through 06/15/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 117 413 530
Davis 167 40 207
Irvine 115 0 115
Los Angeles 1 141 142
Riverside 139 2 141
San Diego 71 28 99
San Francisco 19 0 19
Santa Barbara 20 15 35
Santa Cruz 17 3 20
Other - UC 5 13 18
Other-Network UC n/a 1,904 1,904
_______ ______ _____
671 2,559 3,230
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 10 85 753
2-4 a.m. 5 15 20
4-6 a.m. 55 103 313
6-8 a.m. 143 353 2,527
8-10 a.m. 428 1,147 7,917
10-12 a.m. 616 1,831 15,621
12-2 p.m. 515 1,470 11,668
2-4 p.m. 574 1,908 15,050
4-6 p.m. 441 1,457 10,170
6-8 p.m. 214 693 5,871
8-10 p.m. 126 487 3,334
10-12 p.m. 103 710 6,240
__________ __________ __________ _________________
Total: 3,230 10,259 79,484
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 413 1,521 1,934
Davis 331 70 401
Irvine 381 0 381
Los Angeles 1 463 464
Riverside 740 2 742
San Diego 284 58 342
San Francisco 66 0 66
Santa Barbara 38 30 68
Santa Cruz 42 17 59
Other - UC 9 40 49
Other-Network UC n/a 5,753 5,753
_______ ______ _____
2,305 7,954 10,259
Number of FIND commands by database
WorldCat 8,732
Art Index 59
ArticleFirst 433
ContentsFirst 11
ERIC 0
GPO 0
PapersFirst Index 399
ProceedingsFirst Index 137
SocAbstracts 0
PAIS International 0
MLA Bibliography 448
RILM Index 40
Total number of FIND commands 10,259
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,273 14,580 16,853
Davis 3,859 653 4,512
Irvine 2,885 0 2,885
Los Angeles 0 4,514 4,514
Riverside 4,225 143 4,368
San Diego 848 442 1,290
San Francisco 904 0 904
Santa Barbara 1,639 323 1,962
Santa Cruz 404 748 1,152
Other - UC 9 224 233
Other-Network UC n/a 40,811 40,811
_______ ______ _____
17,046 62,438 79,484
Number of Records Displayed by database
WorldCat 72,175
Art Index 322
ArticleFirst 1,874
ContentsFirst 39
ERIC 0
GPO 0
PapersFirst Index 1,638
ProceedingsFirst Index 1,045
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,242
RILM Index 149
Total number of Records Displayed 79,484
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,558 79.2%
Art Index 23 0.7%
ArticleFirst 249 7.7%
ContentsFirst 16 0.5%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 185 5.7%
ProceedingsFirst Index 80 2.5%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 105 3.3%
RILM Index 14 0.4%
Percent of searches done in the WCAT database 85.1%
Percent of searches done in the ART database 0.6%
Percent of searches done in the JRNL database 4.2%
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 3.9%
Percent of searches done in the PROC database 1.3%
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 4.4%
Percent of searches done in the RILM database 0.4%
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 1.7
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.9
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:40
Average session length (minutes:seconds) 21:22
Longest session recorded (minutes:seconds) 180:15
Average number of searches completed per session 3.4
Retrievals per search - median 2.0
Retrievals per search - average 440.0
Retrievals per search - standard deviation 8823.4
Percent of searches completed with 0 results 25.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,705 32.7%
DISPLAY (excluding automatic displays) 10,624 45.1%
HELP 25 0.1%
EXPLAIN 37 0.2%
SET/RESET 1,748 7.4%
SHOW 54 0.2%
ADD ON (AND, OR, AND NOT) 1,027 4.4%
LOGON or LOGOFF 1,874 8.0%
COMMENT 0 0.0%
USE 13 0.1%
OTHER 443 1.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.1%
SHORT 43.6%
LONG 6.3%
TAGS 0.3%
FIELDS 10.0%
PERIODICALS 18.5%
COMMENTS 0.0%
Other 11.2%
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 784 9.5% 231 29.5% 3 28.9 105.0
SUBJECT 193 2.3% 27 14.0% 102 2070.9 9268.1
EXACT SUBJECT 5 0.1% 2 40.0% 212 1580.7 2552.9
SERIES 134 1.6% 41 30.6% 9 140.9 522.4
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 4 0.0% 0 0.0% 70 58.3 28.4
LANGUAGE 15 0.2% 3 20.0% 190 3305.8 10106.6
FORM 123 1.5% 24 19.5% 16 535.6 3601.3
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 2 0.0% 1 50.0% 21 21.0 0.0
ACCESSION NUMBER 158 1.9% 9 5.7% 1 1.0 0.0
PLACE OF PUBL. 8 0.1% 5 62.5% 10 8.3 5.7
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 4 0.0% 2 50.0% 2 2.0 1.4
ISBN/ISSN/LCCN 610 7.4% 174 28.5% 1 8.5 117.4
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,356 16.4% 406 29.9% 6 49.6 206.7
EXACT PE 201 2.4% 51 25.4% 3 24.7 58.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 215 2.6% 37 17.2% 13 105.9 322.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,432 53.8% 1,127 25.4% 10 817.8 11210.1
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 518 6.7% 111 21.4% 7 186.8 1796.3
Single 7,181 93.3% 1,909 26.6% 6 580.0 9024.7
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:07
Average session length (minutes:seconds) 5:10
Longest session recorded (minutes:seconds) 28:09
Average number of searches completed per session 2.6
Retrievals per search - median 2.0
Retrievals per search - average 71.4
Retrievals per search - standard deviation 139.1
Percent of searches completed with 0 results 42.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 57 37.7%
DISPLAY (excluding automatic displays) 30 19.9%
HELP 8 5.3%
EXPLAIN 5 3.3%
SET/RESET 8 5.3%
SHOW 1 0.7%
ADD ON (AND, OR, AND NOT) 2 1.3%
LOGON or LOGOFF 34 22.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 4.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 97.6%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 2.4%
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 14 24.6% 7 50.0% 14 54.0 87.8
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 21 36.8% 9 42.9% 74 168.3 191.0
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 22 38.6% 9 40.9% 20 139.3 173.9
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 57 100% 25 43.9% 49 131.5 167.5
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 12:39
Average session length (minutes:seconds) 12:53
Longest session recorded (minutes:seconds) 44:23
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 175.9
Retrievals per search - standard deviation 1469.0
Percent of searches completed with 0 results 40.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 385 40.9%
DISPLAY (excluding automatic displays) 202 21.4%
HELP 3 0.3%
EXPLAIN 9 1.0%
SET/RESET 203 21.5%
SHOW 9 1.0%
ADD ON (AND, OR, AND NOT) 48 5.1%
LOGON or LOGOFF 70 7.4%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 12 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.5%
SHORT 62.6%
LONG 1.8%
TAGS 0.0%
FIELDS 7.9%
PERIODICALS 18.7%
COMMENTS 0.0%
Other 2.5%
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 243 50.7% 119 49.0% 3 59.3 244.8
EXACT TITLE 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
KEYWORD 20 4.2% 6 30.0% 57 1374.2 3443.1
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 24 5.0% 5 20.8% 2 8.5 13.6
EXACT PE 5 1.0% 0 0.0% 4 5.0 3.7
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 187 39.0% 63 33.7% 21 450.6 2451.2
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 93 24.2% 41 44.1% 12 129.2 342.9
Single 292 75.8% 110 37.7% 5 380.3 2245.3
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 34:39
Average session length (minutes:seconds) 46:22
Longest session recorded (minutes:seconds) 81:38
Average number of searches completed per session 0.7
Retrievals per search - median 0.0
Retrievals per search - average 75.3
Retrievals per search - standard deviation 165.8
Percent of searches completed with 0 results 72.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11 26.8%
DISPLAY (excluding automatic displays) 9 21.9%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 14 34.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 5 12.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 50.0%
SHORT 10.0%
LONG 20.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 10.0%
COMMENTS 0.0%
Other 10.0%
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 7 63.6% 5 71.4% 410 409.5 43.1
EXACT JOURNAL 3 27.3% 3 100% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1 9.1% 0 0.0% 9 9.0 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% 8 72.7% 379 276.0 233.2
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:33
Average session length (minutes:seconds) 19:39
Longest session recorded (minutes:seconds) 49:36
Average number of searches completed per session 2.2
Retrievals per search - median 1.0
Retrievals per search - average 167.6
Retrievals per search - standard deviation 1483.3
Percent of searches completed with 0 results 41.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 324 38.6%
DISPLAY (excluding automatic displays) 220 26.2%
HELP 0 0.0%
EXPLAIN 7 0.8%
SET/RESET 155 18.4%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 75 8.9%
LOGON or LOGOFF 47 5.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 9 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.1%
SHORT 56.2%
LONG 1.8%
TAGS 0.0%
FIELDS 16.1%
PERIODICALS 11.3%
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 147 37.4% 41 27.9% 19 458.5 2647.1
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 182 46.3% 96 52.7% 4 33.3 120.3
EXACT TITLE 3 0.8% 3 100% 0 0.0 0.0
KEYWORD 4 1.0% 2 50.0% 7 7.0 8.5
CONFERENCE 9 2.3% 3 33.3% 54 198.5 310.2
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 3 0.8% 1 33.3% 5,610 5609.5 7835.5
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 26 6.6% 5 19.2% 71 130.2 159.4
ACCESSION NUMBER 1 0.3% 1 100% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 1 0.3% 0 0.0% 100 100.0 0.0
PERIODICAL 15 3.8% 3 20.0% 6 72.4 146.0
EXACT PE 2 0.5% 0 0.0% 31 31.0 38.2
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 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 67 20.7% 25 37.3% 5 67.9 128.2
Single 257 79.3% 104 40.5% 12 404.9 2376.9
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 9:20
Average session length (minutes:seconds) 11:40
Longest session recorded (minutes:seconds) 39:04
Average number of searches completed per session 1.7
Retrievals per search - median 2.0
Retrievals per search - average 17.1
Retrievals per search - standard deviation 90.0
Percent of searches completed with 0 results 40.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 127 35.8%
DISPLAY (excluding automatic displays) 114 32.1%
HELP 1 0.3%
EXPLAIN 9 2.5%
SET/RESET 67 18.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 10 2.8%
LOGON or LOGOFF 23 6.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 55.6%
SHORT 12.6%
LONG 3.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 4.4%
COMMENTS 0.0%
Other 24.4%
ProceedingsFirst Index Database Statistics continued:
_____________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
EDITOR 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 6 4.7% 3 50.0% 4 6.0 3.5
CONFERENCE 110 85.9% 40 36.4% 5 16.1 30.5
CONFERENCE PLACE 2 1.6% 1 50.0% 1,023 1023.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 1 0.8% 1 100% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 2 1.6% 2 100% 0 0.0 0.0
SUBJECT 1 0.8% 0 0.0% 26 26.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 1 0.8% 1 100% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 5 3.9% 3 60.0% 4 3.5 3.5
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 1 0.8% 1 100% 0 0.0 0.0
Single 126 99.2% 49 38.9% 5 28.5 118.5
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:52
Average session length (minutes:seconds) 8:50
Longest session recorded (minutes:seconds) 62:51
Average number of searches completed per session 4.2
Retrievals per search - median 4.0
Retrievals per search - average 150.8
Retrievals per search - standard deviation 1607.4
Percent of searches completed with 0 results 27.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 400 43.8%
DISPLAY (excluding automatic displays) 226 24.8%
HELP 7 0.8%
EXPLAIN 9 1.0%
SET/RESET 29 3.2%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 48 5.3%
LOGON or LOGOFF 155 17.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 38 4.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.6%
SHORT 80.0%
LONG 15.2%
TAGS 0.0%
FIELDS 0.3%
PERIODICALS 3.5%
COMMENTS 0.0%
Other 0.3%
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 168 40.0% 51 30.4% 17 37.0 69.1
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 74 17.6% 21 28.4% 3 65.6 328.6
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 41 9.8% 11 26.8% 23 1622.9 5953.6
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 1.4% 0 0.0% 6 57.0 82.1
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 131 31.2% 38 29.0% 10 113.9 661.7
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 24 6.1% 5 20.8% 15 69.2 123.5
Single 372 93.9% 111 29.8% 11 248.3 2092.3
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 0:47
Average session length (minutes:seconds) 4:32
Longest session recorded (minutes:seconds) 17:10
Average number of searches completed per session 2.9
Retrievals per search - median 4.5
Retrievals per search - average 389.8
Retrievals per search - standard deviation 1614.5
Percent of searches completed with 0 results 32.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 34 37.4%
DISPLAY (excluding automatic displays) 21 23.1%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 3 3.3%
SHOW 1 1.1%
ADD ON (AND, OR, AND NOT) 6 6.6%
LOGON or LOGOFF 21 23.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 5.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 21.4%
SHORT 75.0%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 3.6%
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 13 36.1% 4 30.8% 14 24.6 30.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 12 33.3% 7 58.3% 1 4.8 6.9
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 10 27.8% 0 0.0% 95 1523.0 3064.4
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
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 1 2.8% 1 100% 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 2 5.9% 1 50.0% 1 1.0 0.0
Single 32 94.1% 10 31.3% 29 703.3 2147.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.1%
Ten most frequent errors:
1. NS command - no next screen 29.1%
2. First word of command is invalid 16.2%
3. Z39.50 host cannot process command 13.7%
4. FIND command with invalid index name 6.6%
5. Too many truncated words to process 5.6%
6. DISPLAY command contains invalid word 5.4%
7. Max. # of ports to a Z39 db are in use 3.3%
8. Search term missing from search command 2.5%
9. DISPLAY command - no FIND results 2.2%
10. PS command - no previous screen 1.6%
11. All others 13.9%
Ten most frequent EXPLAIN requests:
1. INDEXES (PROC DB) 10.5%
2. LOCATE (Z39.50 DBS) 9.2%
3. G508 9.2%
4. INDEXES (WCAT DB) 7.9%
5. INDEXES (JRNL DB) 7.9%
6. DISPLAY (Z39.50 non-A&I DBS) 6.6%
7. GUIDE (ART DB) 6.6%
8. G233 5.3%
9. FIND (Z39.50 DBS) 5.3%
10. GUIDE: Z39.50 non-A&I DBS w/o truncation 5.3%
11. All others 26.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.5%
2. First word of command is invalid 12.5%
3. FIND command retrieves >1 book 5.8%
4. DISPLAY command-complete in one screen 5.8%
5. DISPLAY command-first of >1 screen 5.8%
6. FIND command with zero results 5.0%
7. DISPLAY command - last of >1 screen 5.0%
8. DISPLAY command contains invalid word 3.3%
9. FIND command with invalid index name 3.3%
10. DISPLAY command - middle of >1 screen 3.3%
11. All others 22.5%
Ten most frequent SHOW requests:
1. HISTORY 92.8%
2. SEARCH 4.3%
3. GLOSSARY 1.4%
4. LOCAL INFORMATION 1.4%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)