MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 01/06/01 through 01/12/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 105 441 546
Davis 241 154 395
Irvine 81 0 81
Los Angeles 9 112 121
Riverside 123 2 125
San Diego 87 31 118
San Francisco 30 0 30
Santa Barbara 74 20 94
Santa Cruz 30 8 38
Other - UC 7 21 28
Other-Network UC n/a 1,414 1,414
_______ ______ _____
787 2,203 2,990
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 16 149 1,260
2-4 a.m. 3 19 40
4-6 a.m. 2 56 51
6-8 a.m. 29 138 1,429
8-10 a.m. 335 1,132 17,149
10-12 a.m. 612 2,225 15,921
12-2 p.m. 594 1,777 11,613
2-4 p.m. 635 1,851 16,949
4-6 p.m. 502 1,541 14,796
6-8 p.m. 162 937 8,614
8-10 p.m. 46 424 4,164
10-12 p.m. 54 136 892
__________ __________ __________ _________________
Total: 2,990 10,385 92,878
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 259 1,579 1,838
Davis 637 359 996
Irvine 207 0 207
Los Angeles 33 247 280
Riverside 644 3 647
San Diego 270 94 364
San Francisco 131 0 131
Santa Barbara 210 187 397
Santa Cruz 296 23 319
Other - UC 8 40 48
Other-Network UC n/a 5,158 5,158
_______ ______ _____
2,695 7,690 10,385
Number of FIND commands by database
WorldCat 9,534
Art Index 42
ArticleFirst 114
ContentsFirst 1
ERIC 0
GPO 0
PapersFirst Index 174
ProceedingsFirst Index 45
SocAbstracts 0
PAIS International 19
MLA Bibliography 371
RILM Index 85
Total number of FIND commands 10,385
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,547 13,214 15,761
Davis 12,832 2,359 15,191
Irvine 1,462 0 1,462
Los Angeles 236 3,269 3,505
Riverside 4,340 9 4,349
San Diego 1,312 1,651 2,963
San Francisco 932 0 932
Santa Barbara 1,684 1,106 2,790
Santa Cruz 1,445 124 1,569
Other - UC 48 1,057 1,105
Other-Network UC n/a 43,251 43,251
_______ ______ _____
26,838 66,040 92,878
Number of Records Displayed by database
WorldCat 86,742
Art Index 301
ArticleFirst 684
ContentsFirst 19
ERIC 0
GPO 0
PapersFirst Index 646
ProceedingsFirst Index 856
SocAbstracts 0
PAIS International 92
MLA Bibliography 2,923
RILM Index 615
Total number of Records Displayed 92,878
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,571 86.0%
Art Index 22 0.7%
ArticleFirst 71 2.4%
ContentsFirst 1 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 138 4.6%
ProceedingsFirst Index 41 1.4%
SocAbstracts 0 0.0%
PAIS International 14 0.5%
MLA Bibliography 105 3.5%
RILM Index 27 0.9%
Percent of searches done in the WCAT database 91.8%
Percent of searches done in the ART database 0.4%
Percent of searches done in the JRNL database 1.1%
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 1.7%
Percent of searches done in the PROC database 0.4%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.2%
Percent of searches done in the MLA database 3.6%
Percent of searches done in the RILM database 0.8%
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 4.3
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) 13:51
Average session length (minutes:seconds) 20:49
Longest session recorded (minutes:seconds) 271:51
Average number of searches completed per session 3.7
Retrievals per search - median 3.0
Retrievals per search - average 963.4
Retrievals per search - standard deviation 30560
Percent of searches completed with 0 results 24.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8,558 32.9%
DISPLAY (excluding automatic displays) 12,351 47.5%
HELP 28 0.1%
EXPLAIN 79 0.3%
SET/RESET 1,840 7.1%
SHOW 44 0.2%
ADD ON (AND, OR, AND NOT) 976 3.8%
LOGON or LOGOFF 1,778 6.8%
COMMENT 0 0.0%
USE 11 0.0%
OTHER 322 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.1%
SHORT 37.6%
LONG 7.1%
TAGS 0.4%
FIELDS 9.2%
PERIODICALS 23.4%
COMMENTS 0.0%
Other 11.1%
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 756 8.0% 172 22.8% 4 32.3 179.3
SUBJECT 198 2.1% 33 16.7% 80 33371.0 179413
EXACT SUBJECT 4 0.0% 2 50.0% 4,098 4097.5 5233.3
SERIES 108 1.1% 40 37.0% 7 875.9 5366.6
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 1 0.0% 0 0.0% 74 74.0 0.0
LANGUAGE 43 0.5% 12 27.9% 7 41.1 65.1
FORM 170 1.8% 22 12.9% 7 30.0 72.8
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 12 0.1% 3 25.0% 7 95.2 190.3
ACCESSION NUMBER 123 1.3% 6 4.9% 1 1.0 0.0
PLACE OF PUBL. 14 0.1% 5 35.7% 5 52.1 101.8
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 6 0.1% 4 66.7% 1 1.0 0.0
ISBN/ISSN/LCCN 627 6.7% 228 36.4% 1 6.4 45.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,823 19.4% 512 28.1% 5 81.2 835.3
EXACT PE 147 1.6% 30 20.4% 3 23.9 115.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 223 2.4% 44 19.7% 7 1003.6 3339.3
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,156 54.8% 1,216 23.6% 8 842.2 29522.8
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 838 9.8% 186 22.2% 6 294.4 1802.0
Single 7,714 90.2% 1,951 25.3% 6 1531.4 39270.7
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 6:42
Average session length (minutes:seconds) 10:12
Longest session recorded (minutes:seconds) 26:03
Average number of searches completed per session 1.9
Retrievals per search - median 1.5
Retrievals per search - average 76.0
Retrievals per search - standard deviation 333.8
Percent of searches completed with 0 results 28.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 42 27.8%
DISPLAY (excluding automatic displays) 46 30.5%
HELP 7 4.6%
EXPLAIN 8 5.3%
SET/RESET 9 6.0%
SHOW 2 1.3%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 30 19.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 4.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.1%
SHORT 84.1%
LONG 3.2%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.6%
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 15 32.6% 4 26.7% 6 16.4 34.1
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 5 10.9% 0 0.0% 7 182.2 381.2
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 26 56.5% 10 38.5% 3 132.4 501.3
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 4 9.5% 2 50.0% 9 9.0 9.9
Single 38 90.5% 10 26.3% 6 113.3 406.0
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 9:18
Average session length (minutes:seconds) 15:20
Longest session recorded (minutes:seconds) 91:43
Average number of searches completed per session 1.6
Retrievals per search - median 2.0
Retrievals per search - average 319.6
Retrievals per search - standard deviation 2156.3
Percent of searches completed with 0 results 30.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 109 32.7%
DISPLAY (excluding automatic displays) 92 27.6%
HELP 14 4.2%
EXPLAIN 10 3.0%
SET/RESET 65 19.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 5 1.5%
LOGON or LOGOFF 27 8.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 18.0%
SHORT 33.3%
LONG 2.7%
TAGS 0.0%
FIELDS 2.7%
PERIODICALS 41.4%
COMMENTS 0.0%
Other 1.8%
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 57 48.7% 22 38.6% 3 994.1 3842.4
EXACT TITLE 2 1.7% 2 100% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 1 0.9% 0 0.0% 15 15.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
DESC. OF ISSUE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 29 24.8% 8 27.6% 5 10.0 19.0
EXACT PE 4 3.4% 0 0.0% 3 5.8 6.2
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 24 20.5% 5 20.8% 10 74.7 147.5
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 8 7.3% 3 37.5% 3 9.2 15.0
Single 101 92.7% 31 30.7% 5 519.5 2740.4
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 32:35
Average session length (minutes:seconds) 32:35
Longest session recorded (minutes:seconds) 32:35
Average number of searches completed per session 1.0
Retrievals per search - median 1185.0
Retrievals per search - average 1185.0
Retrievals per search - standard deviation 0.0
Percent of searches completed with 0 results 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1 8.3%
DISPLAY (excluding automatic displays) 3 25.0%
HELP 4 33.3%
EXPLAIN 1 8.3%
SET/RESET 1 8.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 1 8.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 8.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 100%
SHORT 0.0%
LONG 0.0%
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 1 100% 0 0.0% 1,185 1185.0 0.0
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 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 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 1 100% 0 0.0% 1,185 1185.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 11:45
Average session length (minutes:seconds) 14:26
Longest session recorded (minutes:seconds) 45:02
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 44.0
Retrievals per search - standard deviation 253.4
Percent of searches completed with 0 results 42.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 164 32.9%
DISPLAY (excluding automatic displays) 148 29.7%
HELP 7 1.4%
EXPLAIN 13 2.6%
SET/RESET 121 24.3%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 10 2.0%
LOGON or LOGOFF 30 6.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 0.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 16.7%
SHORT 37.2%
LONG 6.7%
TAGS 0.6%
FIELDS 10.0%
PERIODICALS 15.0%
COMMENTS 0.0%
Other 13.9%
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 67 33.2% 26 38.8% 4 65.7 219.5
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 1 0.5% 1 100% 0 0.0 0.0
TITLE WORD 108 53.5% 59 54.6% 2 89.5 429.5
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 6 3.0% 2 33.3% 14 76.5 134.7
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 1 0.5% 0 0.0% 97 97.0 0.0
DATE 3 1.5% 2 66.7% 4 4.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.5% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 13 6.4% 2 15.4% 3 9.3 10.7
EXACT PE 2 1.0% 0 0.0% 7 7.0 1.4
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 38 23.2% 21 55.3% 1 1.7 0.9
Single 126 76.8% 51 40.5% 6 100.6 380.0
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 5:43
Average session length (minutes:seconds) 19:24
Longest session recorded (minutes:seconds) 97:40
Average number of searches completed per session 1.1
Retrievals per search - median 2.0
Retrievals per search - average 156.8
Retrievals per search - standard deviation 546.1
Percent of searches completed with 0 results 37.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 43 24.7%
DISPLAY (excluding automatic displays) 64 36.8%
HELP 5 2.9%
EXPLAIN 8 4.6%
SET/RESET 36 20.7%
SHOW 1 0.6%
ADD ON (AND, OR, AND NOT) 2 1.1%
LOGON or LOGOFF 12 6.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 48.6%
SHORT 15.7%
LONG 24.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 11.4%
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 1 2.3% 1 100% 0 0.0 0.0
KEYWORD 1 2.3% 0 0.0% 1 1.0 0.0
CONFERENCE 30 68.2% 11 36.7% 4 12.1 23.0
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 1 2.3% 1 100% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 7 15.9% 2 28.6% 2,167 1333.6 1151.0
SUBJECT 2 4.5% 1 50.0% 4 4.0 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 2.3% 0 0.0% 147 147.0 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 2.3% 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 1 2.3% 0 0.0% 147 147.0 0.0
Single 42 97.7% 17 40.5% 4 270.2 717.6
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 4:03
Average session length (minutes:seconds) 6:40
Longest session recorded (minutes:seconds) 21:17
Average number of searches completed per session 1.4
Retrievals per search - median 0.0
Retrievals per search - average 61.3
Retrievals per search - standard deviation 244.9
Percent of searches completed with 0 results 57.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 19 28.4%
DISPLAY (excluding automatic displays) 10 14.9%
HELP 3 4.5%
EXPLAIN 5 7.5%
SET/RESET 3 4.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 22 32.8%
COMMENT 0 0.0%
USE 1 1.5%
OTHER 4 6.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 100%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
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 26.3% 4 80.0% 3 3.0 0.0
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 8 42.1% 5 62.5% 1 1.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 1 5.3% 0 0.0% 60 60.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 10.5% 0 0.0% 540 540.0 750.9
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 3 15.8% 2 66.7% 18 18.0 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 19 100% 11 57.9% 6 145.5 374.5
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:03
Average session length (minutes:seconds) 12:38
Longest session recorded (minutes:seconds) 432:41
Average number of searches completed per session 3.5
Retrievals per search - median 3.0
Retrievals per search - average 49.6
Retrievals per search - standard deviation 208.8
Percent of searches completed with 0 results 27.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 357 40.1%
DISPLAY (excluding automatic displays) 250 28.1%
HELP 14 1.6%
EXPLAIN 26 2.9%
SET/RESET 48 5.4%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 14 1.6%
LOGON or LOGOFF 140 15.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 38 4.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 13.3%
SHORT 74.0%
LONG 10.6%
TAGS 0.0%
FIELDS 0.6%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 0.6%
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 64 17.4% 20 31.3% 44 108.3 155.3
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 72 19.6% 22 30.6% 4 131.0 481.4
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 30 8.2% 9 30.0% 6 66.7 177.3
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 1 0.3% 0 0.0% 2 2.0 0.0
EXACT PE 1 0.3% 0 0.0% 8 8.0 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 199 54.2% 51 25.6% 7 41.7 130.9
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 10 2.8% 1 10.0% 44 88.4 146.1
Single 347 97.2% 100 28.8% 7 70.1 251.6
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 3:30
Average session length (minutes:seconds) 6:30
Longest session recorded (minutes:seconds) 28:12
Average number of searches completed per session 3.1
Retrievals per search - median 4.0
Retrievals per search - average 354.3
Retrievals per search - standard deviation 1394.6
Percent of searches completed with 0 results 28.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 76 35.7%
DISPLAY (excluding automatic displays) 66 31.0%
HELP 0 0.0%
EXPLAIN 5 2.3%
SET/RESET 8 3.8%
SHOW 3 1.4%
ADD ON (AND, OR, AND NOT) 9 4.2%
LOGON or LOGOFF 38 17.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 3.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 18.8%
SHORT 73.7%
LONG 6.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.2%
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 35 44.9% 17 48.6% 5 20.4 31.3
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 10 12.8% 2 20.0% 3 31.8 49.0
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 25 32.1% 2 8.0% 40 1199.7 2514.5
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 3.8% 0 0.0% 30 436.0 723.2
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 1.3% 1 100% 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 1 1.3% 1 100% 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 3 3.8% 3 100% 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 2.6% 2 100% 0 0.0 0.0
Single 74 97.4% 22 29.7% 12 567.7 1755.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.5%
Ten most frequent errors:
1. NS command - no next screen 30.2%
2. First word of command is invalid 18.6%
3. Z39.50 host cannot process command 8.4%
4. Too many truncated words to process 7.9%
5. DISPLAY command contains invalid word 7.6%
6. FIND command with invalid index name 6.0%
7. Index invalid in current database 2.1%
8. 945 1.9%
9. PS command - no previous screen 1.6%
10. Search term missing from search command 1.5%
11. All others 14.3%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 11.0%
2. GUIDE (Z39.50 A&I DBS w/o truncation) 10.3%
3. INDEXES (WCAT DB) 9.7%
4. Unrecognized term 9.0%
5. INDEXES (MLA DB) 5.2%
6. COMMANDS (Z39.50 DBS) 3.9%
7. FIND (Z39.50 DBS) 3.2%
8. Unrecognized term-reminders off 3.2%
9. G221 2.6%
10. GUIDE (ART DB) 2.6%
11. All others 39.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.1%
2. First word of command is invalid 10.1%
3. DISPLAY command - middle of >1 screen 10.1%
4. DISPLAY command-complete in one screen 8.4%
5. FIND command with zero results 6.3%
6. DISPLAY command-first of >1 screen 5.9%
7. F/BR with index invalid in current DB 5.9%
8. FIND command with invalid index name 5.5%
9. SAVE command issued from a Z39.50 db 2.1%
10. F/BR command with invalid search term 1.7%
11. All others 14.8%
Ten most frequent SHOW requests:
1. HISTORY 81.5%
2. RILM CLASSES 21-29 5.6%
3. SETTINGS (Z39.50 DBS) 3.7%
4. GLOSSARY 3.7%
5. BIBLIOGRAPHIC SOFTWARE 1.9%
6. SYSTEM NEWS 1.9%
7. SYSTEM1 NEWS 1.9%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)