MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 01/13/01 through 01/19/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 67 388 455
Davis 255 77 332
Irvine 75 0 75
Los Angeles 13 150 163
Riverside 109 8 117
San Diego 58 17 75
San Francisco 35 0 35
Santa Barbara 80 22 102
Santa Cruz 41 11 52
Other - UC 1 28 29
Other-Network UC n/a 1,416 1,416
_______ ______ _____
734 2,117 2,851
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 5 15
2-4 a.m. 0 0 0
4-6 a.m. 2 14 55
6-8 a.m. 29 89 834
8-10 a.m. 352 1,103 9,004
10-12 a.m. 639 2,031 16,137
12-2 p.m. 497 1,405 9,733
2-4 p.m. 620 1,931 17,565
4-6 p.m. 457 1,678 12,781
6-8 p.m. 152 640 6,233
8-10 p.m. 56 426 3,417
10-12 p.m. 43 101 1,392
__________ __________ __________ _________________
Total: 2,851 9,423 77,166
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 230 1,337 1,567
Davis 664 329 993
Irvine 157 0 157
Los Angeles 40 401 441
Riverside 403 16 419
San Diego 200 33 233
San Francisco 130 0 130
Santa Barbara 191 57 248
Santa Cruz 95 97 192
Other - UC 0 40 40
Other-Network UC n/a 5,003 5,003
_______ ______ _____
2,110 7,313 9,423
Number of FIND commands by database
WorldCat 8,284
Art Index 49
ArticleFirst 148
ContentsFirst 15
ERIC 0
GPO 0
PapersFirst Index 220
ProceedingsFirst Index 49
SocAbstracts 0
PAIS International 11
MLA Bibliography 598
RILM Index 49
Total number of FIND commands 9,423
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,722 13,059 14,781
Davis 5,807 1,968 7,775
Irvine 1,735 0 1,735
Los Angeles 142 3,784 3,926
Riverside 4,305 136 4,441
San Diego 1,153 645 1,798
San Francisco 969 0 969
Santa Barbara 1,348 311 1,659
Santa Cruz 1,001 524 1,525
Other - UC 0 273 273
Other-Network UC n/a 38,284 38,284
_______ ______ _____
18,182 58,984 77,166
Number of Records Displayed by database
WorldCat 69,478
Art Index 458
ArticleFirst 954
ContentsFirst 279
ERIC 0
GPO 0
PapersFirst Index 731
ProceedingsFirst Index 360
SocAbstracts 0
PAIS International 13
MLA Bibliography 4,491
RILM Index 402
Total number of Records Displayed 77,166
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,320 81.4%
Art Index 19 0.7%
ArticleFirst 80 2.8%
ContentsFirst 5 0.2%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 158 5.5%
ProceedingsFirst Index 68 2.4%
SocAbstracts 0 0.0%
PAIS International 9 0.3%
MLA Bibliography 181 6.3%
RILM Index 11 0.4%
Percent of searches done in the WCAT database 87.9%
Percent of searches done in the ART database 0.5%
Percent of searches done in the JRNL database 1.6%
Percent of searches done in the JRNLT database 0.2%
Percent of searches done in the EDUC database 0.0%
Percent of searches done in the GDOC database 0.0%
Percent of searches done in the PAPR database 2.3%
Percent of searches done in the PROC database 0.5%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.1%
Percent of searches done in the MLA database 6.3%
Percent of searches done in the RILM database 0.5%
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 1.4
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:37
Average session length (minutes:seconds) 21:45
Longest session recorded (minutes:seconds) 375:21
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 805.4
Retrievals per search - standard deviation 23782
Percent of searches completed with 0 results 23.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,417 31.5%
DISPLAY (excluding automatic displays) 11,638 49.4%
HELP 29 0.1%
EXPLAIN 58 0.2%
SET/RESET 1,692 7.2%
SHOW 40 0.2%
ADD ON (AND, OR, AND NOT) 867 3.7%
LOGON or LOGOFF 1,535 6.5%
COMMENT 0 0.0%
USE 4 0.0%
OTHER 291 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.5%
SHORT 37.4%
LONG 8.0%
TAGS 0.5%
FIELDS 8.8%
PERIODICALS 21.7%
COMMENTS 0.0%
Other 13.2%
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 684 8.5% 185 27.0% 3 19.8 48.1
SUBJECT 216 2.7% 31 14.4% 162 28095.8 156213
EXACT SUBJECT 3 0.0% 2 66.7% 95 95.0 0.0
SERIES 132 1.6% 42 31.8% 5 350.7 1626.7
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 16 0.2% 2 12.5% 2,065 2159.1 2237.4
FORM 145 1.8% 15 10.3% 13 71.2 182.9
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 20 0.2% 6 30.0% 30 61.5 107.3
ACCESSION NUMBER 149 1.8% 4 2.7% 1 1.0 0.0
PLACE OF PUBL. 22 0.3% 0 0.0% 17 50.7 86.2
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 8 0.1% 7 87.5% 1 1.0 0.0
ISBN/ISSN/LCCN 582 7.2% 121 20.8% 1 2.4 3.5
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,566 19.4% 461 29.4% 4 83.6 1250.7
EXACT PE 111 1.4% 25 22.5% 4 16.0 53.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 250 3.1% 48 19.2% 10 69.7 172.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,160 51.6% 953 22.9% 8 396.9 3835.3
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 621 8.4% 125 20.1% 9 124.0 563.2
Single 6,791 91.6% 1,646 24.2% 5 1270.9 30153.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 5:35
Average session length (minutes:seconds) 10:21
Longest session recorded (minutes:seconds) 26:54
Average number of searches completed per session 2.6
Retrievals per search - median 1.0
Retrievals per search - average 13.9
Retrievals per search - standard deviation 37.9
Percent of searches completed with 0 results 44.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 49 33.8%
DISPLAY (excluding automatic displays) 52 35.9%
HELP 2 1.4%
EXPLAIN 2 1.4%
SET/RESET 7 4.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 27 18.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 4.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.5%
SHORT 89.4%
LONG 4.5%
TAGS 0.0%
FIELDS 4.5%
PERIODICALS 0.0%
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 6 12.2% 3 50.0% 35 34.0 5.6
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 27 55.1% 13 48.1% 5 26.7 62.9
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 16 32.7% 6 37.5% 8 20.5 32.3
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 49 100% 22 44.9% 8 25.2 48.6
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 11:07
Average session length (minutes:seconds) 12:41
Longest session recorded (minutes:seconds) 31:55
Average number of searches completed per session 1.8
Retrievals per search - median 2.5
Retrievals per search - average 136.3
Retrievals per search - standard deviation 570.4
Percent of searches completed with 0 results 38.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 143 36.7%
DISPLAY (excluding automatic displays) 104 26.7%
HELP 12 3.1%
EXPLAIN 13 3.3%
SET/RESET 72 18.5%
SHOW 4 1.0%
ADD ON (AND, OR, AND NOT) 5 1.3%
LOGON or LOGOFF 29 7.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 2.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.9%
SHORT 51.2%
LONG 1.7%
TAGS 0.0%
FIELDS 5.8%
PERIODICALS 31.4%
COMMENTS 0.0%
Other 0.0%
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 88 55.7% 39 44.3% 5 185.4 632.0
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 8 5.1% 3 37.5% 382 1511.0 1938.2
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 12 7.6% 1 8.3% 9 22.5 31.6
EXACT PE 2 1.3% 0 0.0% 11 10.5 2.1
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 48 30.4% 20 41.7% 15 139.3 328.7
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 14 9.8% 9 64.3% 6 126.4 174.8
Single 129 90.2% 45 34.9% 9 232.6 743.0
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 7:30
Average session length (minutes:seconds) 7:18
Longest session recorded (minutes:seconds) 8:37
Average number of searches completed per session 3.0
Retrievals per search - median 287.0
Retrievals per search - average 787.8
Retrievals per search - standard deviation 1125.3
Percent of searches completed with 0 results 40.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 15 25.4%
DISPLAY (excluding automatic displays) 10 16.9%
HELP 8 13.6%
EXPLAIN 14 23.7%
SET/RESET 2 3.4%
SHOW 2 3.4%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 7 11.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 81.8%
SHORT 0.0%
LONG 9.1%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 9.1%
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 6 40.0% 3 50.0% 287 287.0 0.0
EXACT JOURNAL 4 26.7% 0 0.0% 2,567 2567.0 0.0
KEYWORD 1 6.7% 1 100% 0 0.0 0.0
SUBJECT 4 26.7% 2 50.0% 344 344.0 442.6
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 15 100% 6 40.0% 657 1313.0 1200.1
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 13:18
Average session length (minutes:seconds) 26:00
Longest session recorded (minutes:seconds) 197:02
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 152.4
Retrievals per search - standard deviation 1431.0
Percent of searches completed with 0 results 44.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 187 34.0%
DISPLAY (excluding automatic displays) 133 24.2%
HELP 1 0.2%
EXPLAIN 6 1.1%
SET/RESET 136 24.7%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 33 6.0%
LOGON or LOGOFF 42 7.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 11 2.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.8%
SHORT 49.4%
LONG 4.7%
TAGS 0.0%
FIELDS 12.2%
PERIODICALS 12.2%
COMMENTS 0.0%
Other 8.7%
PapersFirst Index Database Statistics continued:
________________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 80 36.4% 35 43.8% 17 619.5 3138.9
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 103 46.8% 55 53.4% 3 42.7 132.5
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 4 1.8% 1 25.0% 847 617.0 398.4
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 6 2.7% 3 50.0% 321 321.0 0.0
EXACT JOURNAL 1 0.5% 1 100% 0 0.0 0.0
DATE 7 3.2% 3 42.9% 14 22.3 26.7
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 16 7.3% 2 12.5% 10 38.7 59.9
EXACT PE 3 1.4% 1 33.3% 3 2.5 2.1
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 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 32 17.1% 18 56.3% 4 9.0 15.7
Single 155 82.9% 64 41.3% 9 364.0 2214.8
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 13:43
Average session length (minutes:seconds) 36:03
Longest session recorded (minutes:seconds) 132:28
Average number of searches completed per session 0.7
Retrievals per search - median 2.0
Retrievals per search - average 6.5
Retrievals per search - standard deviation 15.0
Percent of searches completed with 0 results 36.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 49 22.2%
DISPLAY (excluding automatic displays) 79 35.7%
HELP 6 2.7%
EXPLAIN 9 4.1%
SET/RESET 64 29.0%
SHOW 1 0.5%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 9 4.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 57.5%
SHORT 10.3%
LONG 18.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 2.3%
COMMENTS 0.0%
Other 11.5%
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 2 3.9% 2 100% 0 0.0 0.0
CONFERENCE 39 76.5% 10 25.6% 3 7.8 10.7
CONFERENCE PLACE 2 3.9% 1 50.0% 89 89.0 0.0
CONFERENCE DATE 1 2.0% 0 0.0% 89 89.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 1 2.0% 1 100% 0 0.0 0.0
JOURNAL 1 2.0% 1 100% 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 4 7.8% 3 75.0% 4 4.0 0.0
EXACT PE 1 2.0% 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 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 2 4.1% 1 50.0% 89 89.0 0.0
Single 47 95.9% 17 36.2% 3 7.6 10.6
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 1:43
Average session length (minutes:seconds) 12:12
Longest session recorded (minutes:seconds) 31:57
Average number of searches completed per session 1.2
Retrievals per search - median 0.0
Retrievals per search - average 6.4
Retrievals per search - standard deviation 18.8
Percent of searches completed with 0 results 72.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11 33.3%
DISPLAY (excluding automatic displays) 3 9.1%
HELP 0 0.0%
EXPLAIN 1 3.0%
SET/RESET 5 15.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 11 33.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 6.1%
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 7 53.8% 5 71.4% 4 3.5 2.1
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 4 30.8% 4 100% 0 0.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 1 7.7% 1 100% 0 0.0 0.0
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
EXACT JOURNAL 1 7.7% 0 0.0% 63 63.0 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 2 18.2% 2 100% 0 0.0 0.0
Single 9 81.8% 6 66.7% 5 23.3 34.4
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:50
Average session length (minutes:seconds) 9:41
Longest session recorded (minutes:seconds) 60:47
Average number of searches completed per session 3.3
Retrievals per search - median 3.0
Retrievals per search - average 77.6
Retrievals per search - standard deviation 465.2
Percent of searches completed with 0 results 32.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 578 42.0%
DISPLAY (excluding automatic displays) 360 26.2%
HELP 16 1.2%
EXPLAIN 45 3.3%
SET/RESET 70 5.1%
SHOW 4 0.3%
ADD ON (AND, OR, AND NOT) 20 1.5%
LOGON or LOGOFF 231 16.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 52 3.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.8%
SHORT 83.3%
LONG 7.5%
TAGS 0.0%
FIELDS 0.9%
PERIODICALS 0.4%
COMMENTS 0.0%
Other 1.1%
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 130 21.9% 44 33.8% 19 318.7 1100.9
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 160 27.0% 65 40.6% 8 57.9 138.0
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 84 14.2% 27 32.1% 6 45.5 97.9
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 0.2% 0 0.0% 2 2.0 0.0
EXACT PE 1 0.2% 0 0.0% 2 2.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 217 36.6% 63 29.0% 12 89.4 357.0
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 16 2.8% 9 56.3% 658 481.0 420.9
Single 561 97.2% 181 32.3% 10 111.9 574.6
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 9:23
Average session length (minutes:seconds) 8:28
Longest session recorded (minutes:seconds) 14:32
Average number of searches completed per session 4.5
Retrievals per search - median 2.0
Retrievals per search - average 201.0
Retrievals per search - standard deviation 1032.9
Percent of searches completed with 0 results 36.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 48 39.0%
DISPLAY (excluding automatic displays) 46 37.4%
HELP 2 1.6%
EXPLAIN 2 1.6%
SET/RESET 2 1.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 18 14.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.6%
SHORT 85.5%
LONG 10.9%
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 7 14.3% 2 28.6% 10 19.8 23.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 32 65.3% 14 43.8% 14 136.0 247.0
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 7 14.3% 2 28.6% 40 1457.2 3209.3
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 4.1% 0 0.0% 2 1.5 0.7
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 2.0% 0 0.0% 12 12.0 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 2.1% 1 100% 0 0.0 0.0
Single 47 97.9% 16 34.0% 10 317.7 1291.8
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 27.4%
2. First word of command is invalid 18.8%
3. Z39.50 host cannot process command 9.2%
4. DISPLAY command contains invalid word 7.8%
5. Too many truncated words to process 6.9%
6. FIND command with invalid index name 6.0%
7. Max. # of ports to a Z39 db are in use 2.6%
8. Index invalid in current database 2.2%
9. Search term missing from search command 1.8%
10. DISPLAY command - no FIND results 1.5%
11. All others 15.9%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 12.0%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 10.7%
3. FIND (Z39.50 DBS) 9.3%
4. INDEXES (WCAT DB) 9.3%
5. LOCATE (Z39.50 DBS) 6.0%
6. GUIDE (Z39.50 A&I DBS w/o truncation) 6.0%
7. Unrecognized term-reminders off 6.0%
8. INDEXES (PROC DB) 4.7%
9. Unrecognized term 4.0%
10. INDEXES (MLA DB) 2.7%
11. All others 29.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.5%
2. First word of command is invalid 13.7%
3. DISPLAY command-complete in one screen 9.3%
4. FIND command with invalid index name 8.4%
5. F/BR with index invalid in current DB 7.1%
6. FIND command with zero results 6.2%
7. DISPLAY command-first of >1 screen 6.2%
8. DISPLAY command - last of >1 screen 3.5%
9. 945 3.5%
10. FIND command retrieves 1 book 2.2%
11. All others 16.4%
Ten most frequent SHOW requests:
1. HISTORY 71.2%
2. SEARCH 11.5%
3. GLOSSARY 5.8%
4. SYSTEM NEWS 5.8%
5. Z39.50 NEWS 1.9%
6. SETTINGS (Z39.50 DBS) 1.9%
7. LIBRARY NEWS 1.9%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)