MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/30/00 through 01/05/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 94 346 440
Davis 238 33 271
Irvine 60 0 60
Los Angeles 9 76 85
Riverside 76 4 80
San Diego 42 28 70
San Francisco 21 0 21
Santa Barbara 49 10 59
Santa Cruz 32 21 53
Other - UC 2 5 7
Other-Network UC n/a 920 920
_______ ______ _____
623 1,443 2,066
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 1 20
2-4 a.m. 1 12 21
4-6 a.m. 7 11 97
6-8 a.m. 21 122 663
8-10 a.m. 237 839 5,823
10-12 a.m. 463 1,463 13,848
12-2 p.m. 451 1,403 11,686
2-4 p.m. 427 1,286 10,969
4-6 p.m. 269 1,071 9,458
6-8 p.m. 141 618 5,388
8-10 p.m. 32 308 3,338
10-12 p.m. 16 59 1,073
__________ __________ __________ _________________
Total: 2,066 7,193 62,384
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 336 1,048 1,384
Davis 751 169 920
Irvine 159 0 159
Los Angeles 24 174 198
Riverside 435 13 448
San Diego 214 45 259
San Francisco 90 0 90
Santa Barbara 165 58 223
Santa Cruz 94 57 151
Other - UC 2 5 7
Other-Network UC n/a 3,354 3,354
_______ ______ _____
2,270 4,923 7,193
Number of FIND commands by database
WorldCat 6,322
Art Index 59
ArticleFirst 91
ContentsFirst 4
ERIC 0
GPO 0
PapersFirst Index 148
ProceedingsFirst Index 43
SocAbstracts 0
PAIS International 20
MLA Bibliography 469
RILM Index 37
Total number of FIND commands 7,193
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,481 10,274 12,755
Davis 6,020 592 6,612
Irvine 2,406 0 2,406
Los Angeles 249 1,385 1,634
Riverside 5,210 60 5,270
San Diego 953 937 1,890
San Francisco 967 0 967
Santa Barbara 1,195 363 1,558
Santa Cruz 768 307 1,075
Other - UC 4 833 837
Other-Network UC n/a 27,380 27,380
_______ ______ _____
20,253 42,131 62,384
Number of Records Displayed by database
WorldCat 55,777
Art Index 654
ArticleFirst 413
ContentsFirst 2
ERIC 0
GPO 0
PapersFirst Index 1,211
ProceedingsFirst Index 507
SocAbstracts 0
PAIS International 262
MLA Bibliography 3,112
RILM Index 446
Total number of Records Displayed 62,384
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 1,716 83.1%
Art Index 18 0.9%
ArticleFirst 68 3.3%
ContentsFirst 2 0.1%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 110 5.3%
ProceedingsFirst Index 42 2.0%
SocAbstracts 0 0.0%
PAIS International 6 0.3%
MLA Bibliography 92 4.5%
RILM Index 12 0.6%
Percent of searches done in the WCAT database 87.9%
Percent of searches done in the ART database 0.8%
Percent of searches done in the JRNL database 1.3%
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 2.1%
Percent of searches done in the PROC database 0.6%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.3%
Percent of searches done in the MLA database 6.5%
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 1.2
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) 13:31
Average session length (minutes:seconds) 18:19
Longest session recorded (minutes:seconds) 187:11
Average number of searches completed per session 3.7
Retrievals per search - median 2.0
Retrievals per search - average 134.3
Retrievals per search - standard deviation 1435.0
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 5,724 33.1%
DISPLAY (excluding automatic displays) 8,211 47.5%
HELP 24 0.1%
EXPLAIN 50 0.3%
SET/RESET 1,157 6.7%
SHOW 19 0.1%
ADD ON (AND, OR, AND NOT) 598 3.5%
LOGON or LOGOFF 1,295 7.5%
COMMENT 0 0.0%
USE 2 0.0%
OTHER 220 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.9%
SHORT 35.4%
LONG 8.8%
TAGS 0.5%
FIELDS 7.4%
PERIODICALS 23.7%
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 537 8.8% 123 22.9% 3 18.6 53.2
SUBJECT 108 1.8% 20 18.5% 51 1562.0 5399.0
EXACT SUBJECT 10 0.2% 3 30.0% 292 1196.1 1480.9
SERIES 118 1.9% 37 31.4% 6 191.1 763.8
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 8 0.1% 2 25.0% 3 45.0 102.9
FORM 81 1.3% 8 9.9% 10 37.0 74.3
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 12 0.2% 1 8.3% 37 44.8 56.5
ACCESSION NUMBER 83 1.4% 4 4.8% 1 1.0 0.0
PLACE OF PUBL. 3 0.0% 1 33.3% 24 23.5 31.8
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 13 0.2% 8 61.5% 1 1.8 1.8
ISBN/ISSN/LCCN 371 6.1% 101 27.2% 1 3.9 30.4
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,249 20.5% 337 27.0% 4 40.8 237.2
EXACT PE 55 0.9% 15 27.3% 5 13.2 20.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 110 1.8% 20 18.2% 6 35.2 86.7
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 3,339 54.8% 877 26.3% 9 213.9 1845.6
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 359 6.3% 84 23.4% 5 25.3 64.8
Single 5,363 93.7% 1,386 25.8% 6 182.7 1681.3
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 1:48
Average session length (minutes:seconds) 6:55
Longest session recorded (minutes:seconds) 50:51
Average number of searches completed per session 3.3
Retrievals per search - median 2.0
Retrievals per search - average 36.7
Retrievals per search - standard deviation 156.4
Percent of searches completed with 0 results 42.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 59 37.8%
DISPLAY (excluding automatic displays) 58 37.2%
HELP 1 0.6%
EXPLAIN 1 0.6%
SET/RESET 2 1.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 27 17.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 5.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 92.6%
LONG 2.9%
TAGS 0.0%
FIELDS 4.4%
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 7 11.9% 4 57.1% 2 2.7 2.1
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 29 49.2% 7 24.1% 16 95.5 248.6
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 23 39.0% 14 60.9% 5 6.7 5.9
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 59 100% 25 42.4% 12 63.8 203.0
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:57
Average session length (minutes:seconds) 13:13
Longest session recorded (minutes:seconds) 41:14
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 317.5
Retrievals per search - standard deviation 2608.5
Percent of searches completed with 0 results 41.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 89 33.5%
DISPLAY (excluding automatic displays) 61 22.9%
HELP 8 3.0%
EXPLAIN 12 4.5%
SET/RESET 63 23.7%
SHOW 3 1.1%
ADD ON (AND, OR, AND NOT) 2 0.8%
LOGON or LOGOFF 21 7.9%
COMMENT 0 0.0%
USE 1 0.4%
OTHER 6 2.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.0%
SHORT 51.2%
LONG 2.4%
TAGS 0.0%
FIELDS 8.5%
PERIODICALS 25.6%
COMMENTS 0.0%
Other 1.2%
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 64 71.1% 30 46.9% 4 108.1 263.3
EXACT TITLE 2 2.2% 0 0.0% 44 43.5 53.0
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 6 6.7% 1 16.7% 9 15.6 16.2
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 17 18.9% 6 35.3% 2 2275.2 7496.2
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 1.1% 0 0.0% 6 6.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 1 1.1% 0 0.0% 6 6.0 0.0
Single 88 98.9% 37 42.0% 3 565.9 3479.2
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 6:23
Average session length (minutes:seconds) 6:23
Longest session recorded (minutes:seconds) 6:23
Average number of searches completed per session 2.0
Retrievals per search - median 0.0
Retrievals per search - average 0.5
Retrievals per search - standard deviation 1.0
Percent of searches completed with 0 results 75.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 4 40.0%
DISPLAY (excluding automatic displays) 1 10.0%
HELP 1 10.0%
EXPLAIN 0 0.0%
SET/RESET 1 10.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 2 20.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 10.0%
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 25.0% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 3 75.0% 2 66.7% 2 2.0 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 4 100% 3 75.0% 2 2.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:20
Average session length (minutes:seconds) 28:26
Longest session recorded (minutes:seconds) 208:38
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 206.8
Retrievals per search - standard deviation 1841.4
Percent of searches completed with 0 results 46.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 133 32.5%
DISPLAY (excluding automatic displays) 124 30.3%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 103 25.2%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 15 3.7%
LOGON or LOGOFF 23 5.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 2.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.1%
SHORT 41.1%
LONG 5.0%
TAGS 0.0%
FIELDS 10.6%
PERIODICALS 22.7%
COMMENTS 0.0%
Other 8.5%
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 35 23.6% 12 34.3% 16 143.3 456.8
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 81 54.7% 51 63.0% 2 20.7 52.3
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 5 3.4% 0 0.0% 224 243.0 174.3
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 2 1.4% 1 50.0% 22,156 22156.0 0.0
EXACT JOURNAL 1 0.7% 1 100% 0 0.0 0.0
DATE 1 0.7% 0 0.0% 5 5.0 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 23 15.5% 6 26.1% 11 55.4 97.1
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 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 16 12.1% 9 56.3% 4 5.6 6.7
Single 116 87.9% 53 45.7% 11 447.0 2794.2
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 12:50
Average session length (minutes:seconds) 36:10
Longest session recorded (minutes:seconds) 150:45
Average number of searches completed per session 1.0
Retrievals per search - median 4.0
Retrievals per search - average 21.3
Retrievals per search - standard deviation 65.1
Percent of searches completed with 0 results 30.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 42 21.9%
DISPLAY (excluding automatic displays) 73 38.0%
HELP 8 4.2%
EXPLAIN 15 7.8%
SET/RESET 38 19.8%
SHOW 1 0.5%
ADD ON (AND, OR, AND NOT) 1 0.5%
LOGON or LOGOFF 12 6.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 51.3%
SHORT 9.0%
LONG 21.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 3.8%
COMMENTS 0.0%
Other 14.1%
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 2.4% 1 100% 0 0.0 0.0
KEYWORD 1 2.4% 1 100% 0 0.0 0.0
CONFERENCE 35 83.3% 10 28.6% 6 9.2 9.1
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 1 2.4% 0 0.0% 267 267.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 4 9.5% 1 25.0% 29 127.7 189.4
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 42 100% 13 30.9% 6 30.3 77.8
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 7:45
Average session length (minutes:seconds) 7:45
Longest session recorded (minutes:seconds) 7:45
Average number of searches completed per session 3.3
Retrievals per search - median 1.5
Retrievals per search - average 71.5
Retrievals per search - standard deviation 172.2
Percent of searches completed with 0 results 40.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 20 36.4%
DISPLAY (excluding automatic displays) 24 43.6%
HELP 1 1.8%
EXPLAIN 2 3.6%
SET/RESET 1 1.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 6 10.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 92.9%
LONG 0.0%
TAGS 0.0%
FIELDS 7.1%
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 1 5.0% 1 100% 0 0.0 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 5 25.0% 2 40.0% 2 31.3 51.7
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 13 65.0% 4 30.8% 20 148.3 239.7
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 5.0% 1 100% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN/LCCN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 20 100% 8 40.0% 20 119.1 212.3
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 6:55
Average session length (minutes:seconds) 11:51
Longest session recorded (minutes:seconds) 73:03
Average number of searches completed per session 5.1
Retrievals per search - median 4.0
Retrievals per search - average 97.8
Retrievals per search - standard deviation 395.4
Percent of searches completed with 0 results 25.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 421 45.6%
DISPLAY (excluding automatic displays) 246 26.6%
HELP 7 0.8%
EXPLAIN 11 1.2%
SET/RESET 46 5.0%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 48 5.2%
LOGON or LOGOFF 112 12.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 30 3.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 79.2%
LONG 7.1%
TAGS 0.5%
FIELDS 0.8%
PERIODICALS 0.8%
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 121 25.2% 23 19.0% 76 281.5 618.9
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 176 36.6% 69 39.2% 2 71.7 228.3
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 8 1.7% 0 0.0% 29 37.5 33.2
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% 1 1.0 0.0
EXACT PE 5 1.0% 0 0.0% 3 6.4 7.6
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 170 35.3% 22 12.9% 22 111.4 492.7
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 42 10.0% 4 9.5% 86 188.4 528.9
Single 377 90.0% 106 28.1% 9 132.4 472.2
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 6:30
Average session length (minutes:seconds) 9:35
Longest session recorded (minutes:seconds) 34:58
Average number of searches completed per session 3.1
Retrievals per search - median 4.0
Retrievals per search - average 444.6
Retrievals per search - standard deviation 1644.7
Percent of searches completed with 0 results 18.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 33 32.0%
DISPLAY (excluding automatic displays) 39 37.9%
HELP 1 1.0%
EXPLAIN 0 0.0%
SET/RESET 4 3.9%
SHOW 1 1.0%
ADD ON (AND, OR, AND NOT) 4 3.9%
LOGON or LOGOFF 17 16.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 17.0%
SHORT 78.7%
LONG 4.3%
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 9 25.0% 1 11.1% 35 38.3 38.3
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 10 27.8% 2 20.0% 4 12.5 22.8
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% 2 20.0% 3 1801.4 3330.9
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 1 2.8% 0 0.0% 5 5.0 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 2 5.6% 0 0.0% 440 440.0 388.9
EXACT JOURNAL 4 11.1% 0 0.0% 5 182.0 355.3
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 3 9.1% 0 0.0% 4 4.3 0.6
Single 30 90.9% 5 16.7% 7 656.2 1978.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.9%
Ten most frequent errors:
1. NS command - no next screen 28.9%
2. First word of command is invalid 18.5%
3. Z39.50 host cannot process command 9.5%
4. Too many truncated words to process 7.6%
5. DISPLAY command contains invalid word 6.7%
6. FIND command with invalid index name 6.3%
7. 945 3.0%
8. Index invalid in current database 2.4%
9. Max. # of ports to a Z39 db are in use 1.5%
10. DISPLAY command - no FIND results 1.5%
11. All others 14.1%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 18.7%
2. FIND (Z39.50 DBS) 13.2%
3. INDEXES (WCAT DB) 9.9%
4. INDEXES (PROC DB) 6.6%
5. INDEXES (JRNL DB) 6.6%
6. GUIDE (Z39.50 A&I DBS w/o truncation) 6.6%
7. LOCATE (Z39.50 DBS) 4.4%
8. GUIDE: Z39.50 non-A&I DBS w/o truncation 4.4%
9. DISPLAY (Z39.50 non-A&I DBS) 3.3%
10. G483 2.2%
11. All others 24.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.5%
2. F/BR with index invalid in current DB 8.5%
3. First word of command is invalid 7.0%
4. DISPLAY command-complete in one screen 7.0%
5. DISPLAY command - middle of >1 screen 7.0%
6. DISPLAY command-first of >1 screen 6.3%
7. FIND command with invalid index name 4.9%
8. NS command - no next screen 4.2%
9. FIND command with zero results 4.2%
10. DISPLAY command - last of >1 screen 4.2%
11. All others 19.0%
Ten most frequent SHOW requests:
1. HISTORY 60.7%
2. SEARCH 21.4%
3. Z39.50 NEWS 3.6%
4. SETTINGS (Z39.50 DBS) 3.6%
5. OCLC/RLG STATISTICS DIRECTORY 3.6%
6. GLOSSARY 3.6%
7. DISPLAY 3.6%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)