MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/23/00 through 12/29/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 43 43
Davis 117 14 131
Irvine 66 0 66
Los Angeles 1 52 53
Riverside 15 0 15
San Diego 38 61 99
San Francisco 22 0 22
Santa Barbara 19 8 27
Santa Cruz 0 14 14
Other - UC 0 3 3
Other-Network UC n/a 498 498
_______ ______ _____
278 693 971
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 23 75
2-4 a.m. 3 8 26
4-6 a.m. 1 0 0
6-8 a.m. 7 19 142
8-10 a.m. 142 375 3,016
10-12 a.m. 282 1,056 8,947
12-2 p.m. 203 617 9,533
2-4 p.m. 149 661 5,923
4-6 p.m. 99 317 3,647
6-8 p.m. 31 113 700
8-10 p.m. 31 150 2,426
10-12 p.m. 17 76 2,380
__________ __________ __________ _________________
Total: 971 3,415 36,815
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 158 158
Davis 378 24 402
Irvine 237 0 237
Los Angeles 2 143 145
Riverside 73 0 73
San Diego 139 251 390
San Francisco 73 0 73
Santa Barbara 140 8 148
Santa Cruz 0 108 108
Other - UC 0 15 15
Other-Network UC n/a 1,666 1,666
_______ ______ _____
1,042 2,373 3,415
Number of FIND commands by database
WorldCat 2,773
Art Index 21
ArticleFirst 73
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 86
ProceedingsFirst Index 6
SocAbstracts 0
PAIS International 36
MLA Bibliography 282
RILM Index 138
Total number of FIND commands 3,415
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 1,365 1,365
Davis 4,079 315 4,394
Irvine 2,962 0 2,962
Los Angeles 57 1,061 1,118
Riverside 915 0 915
San Diego 4,545 6,727 11,272
San Francisco 606 0 606
Santa Barbara 976 102 1,078
Santa Cruz 0 1,267 1,267
Other - UC 0 75 75
Other-Network UC n/a 11,763 11,763
_______ ______ _____
14,140 22,675 36,815
Number of Records Displayed by database
WorldCat 24,713
Art Index 162
ArticleFirst 553
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 273
ProceedingsFirst Index 46
SocAbstracts 0
PAIS International 564
MLA Bibliography 2,342
RILM Index 8,162
Total number of Records Displayed 36,815
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 737 75.9%
Art Index 8 0.8%
ArticleFirst 45 4.6%
ContentsFirst 0 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 64 6.6%
ProceedingsFirst Index 11 1.1%
SocAbstracts 0 0.0%
PAIS International 4 0.4%
MLA Bibliography 55 5.7%
RILM Index 47 4.8%
Percent of searches done in the WCAT database 81.2%
Percent of searches done in the ART database 0.6%
Percent of searches done in the JRNL database 2.1%
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 2.5%
Percent of searches done in the PROC database 0.2%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 1.1%
Percent of searches done in the MLA database 8.3%
Percent of searches done in the RILM database 4.0%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 15:07
Average session length (minutes:seconds) 25:39
Longest session recorded (minutes:seconds) 624:55
Average number of searches completed per session 3.8
Retrievals per search - median 3.0
Retrievals per search - average 616.3
Retrievals per search - standard deviation 13754
Percent of searches completed with 0 results 22.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,338 30.6%
DISPLAY (excluding automatic displays) 3,613 47.3%
HELP 13 0.2%
EXPLAIN 26 0.3%
SET/RESET 484 6.3%
SHOW 31 0.4%
ADD ON (AND, OR, AND NOT) 435 5.7%
LOGON or LOGOFF 584 7.6%
COMMENT 0 0.0%
USE 6 0.1%
OTHER 112 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.9%
SHORT 41.7%
LONG 12.5%
TAGS 0.2%
FIELDS 8.3%
PERIODICALS 14.3%
COMMENTS 0.0%
Other 10.2%
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 235 9.2% 43 18.3% 5 25.8 68.9
SUBJECT 114 4.5% 14 12.3% 16 1945.5 12525.6
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 34 1.3% 7 20.6% 10 156.4 590.2
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 0 0.0% 0 0.0% 0 0.0 0.0
FORM 40 1.6% 8 20.0% 12 30.0 45.5
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 9 0.4% 0 0.0% 69 683.8 1713.1
ACCESSION NUMBER 50 2.0% 1 2.0% 1 1.0 0.0
PLACE OF PUBL. 3 0.1% 0 0.0% 25 53.3 68.1
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 0 0.0% 0 0.0% 0 0.0 0.0
ISBN/ISSN/LCCN 190 7.4% 60 31.6% 2 4.8 14.4
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 289 11.3% 71 24.6% 6 337.8 4250.9
EXACT PE 42 1.6% 6 14.3% 5 1193.0 7109.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 112 4.4% 21 18.8% 8 14.5 18.9
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 1,438 56.3% 306 21.3% 14 1186.4 21051.5
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 213 9.1% 39 18.3% 9 19.8 30.8
Single 2,124 90.9% 458 21.6% 8 999.7 17720.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:06
Average session length (minutes:seconds) 2:17
Longest session recorded (minutes:seconds) 2:57
Average number of searches completed per session 2.6
Retrievals per search - median 0.0
Retrievals per search - average 31.5
Retrievals per search - standard deviation 70.8
Percent of searches completed with 0 results 52.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 18 41.9%
DISPLAY (excluding automatic displays) 8 18.6%
HELP 1 2.3%
EXPLAIN 0 0.0%
SET/RESET 5 11.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 7.0%
LOGON or LOGOFF 6 14.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 4.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.7%
SHORT 84.6%
LONG 7.7%
TAGS 0.0%
FIELDS 0.0%
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 11 57.9% 6 54.5% 2 56.4 75.4
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 0 0.0% 0 0.0% 0 0.0 0.0
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 8 42.1% 4 50.0% 56 94.3 124.9
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 1 5.6% 1 100% 0 0.0 0.0
Single 17 94.4% 8 47.1% 2 73.2 95.3
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 14:10
Average session length (minutes:seconds) 15:02
Longest session recorded (minutes:seconds) 39:18
Average number of searches completed per session 1.6
Retrievals per search - median 3.0
Retrievals per search - average 1638.1
Retrievals per search - standard deviation 8868.0
Percent of searches completed with 0 results 37.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 71 38.8%
DISPLAY (excluding automatic displays) 45 24.6%
HELP 5 2.7%
EXPLAIN 4 2.2%
SET/RESET 39 21.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 1.1%
LOGON or LOGOFF 15 8.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.7%
SHORT 76.4%
LONG 1.8%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 9.1%
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 59 75.6% 25 42.4% 6 919.8 4667.4
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 9 11.5% 1 11.1% 962 11021.6 24315.3
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 3 3.8% 0 0.0% 7 44.0 66.7
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 7 9.0% 1 14.3% 49 496.2 983.2
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 7 9.9% 1 14.3% 49 496.2 983.2
Single 64 90.1% 25 39.1% 7 2989.8 12034.2
2.4 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:37
Average session length (minutes:seconds) 18:08
Longest session recorded (minutes:seconds) 43:06
Average number of searches completed per session 1.3
Retrievals per search - median 0.0
Retrievals per search - average 28.3
Retrievals per search - standard deviation 198.6
Percent of searches completed with 0 results 52.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 79 35.0%
DISPLAY (excluding automatic displays) 58 25.7%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 60 26.5%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 7 3.1%
LOGON or LOGOFF 16 7.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 16.2%
SHORT 29.4%
LONG 0.0%
TAGS 0.0%
FIELDS 5.9%
PERIODICALS 44.1%
COMMENTS 0.0%
Other 4.4%
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 22 24.2% 14 63.6% 8 237.3 648.0
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 55 60.4% 33 60.0% 6 18.9 30.3
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 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 0 0.0% 0 0.0% 0 0.0 0.0
DATE 3 3.3% 1 33.3% 12 11.5 4.9
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 10 11.0% 2 20.0% 4 8.3 9.5
EXACT PE 1 1.1% 0 0.0% 23 23.0 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 12 15.2% 9 75.0% 13 12.0 3.6
Single 67 84.8% 32 47.8% 6 67.3 309.6
2.5 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 1:06
Average session length (minutes:seconds) 1:06
Longest session recorded (minutes:seconds) 1:06
Average number of searches completed per session 0.5
Retrievals per search - median 3.0
Retrievals per search - average 4.5
Retrievals per search - standard deviation 6.0
Percent of searches completed with 0 results 33.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 6 20.7%
DISPLAY (excluding automatic displays) 11 37.9%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 10 34.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 2 6.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 45.5%
SHORT 18.2%
LONG 18.2%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 18.2%
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 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 6 100% 2 33.3% 5 6.8 6.3
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
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 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 6 100% 2 33.3% 5 6.8 6.3
2.6 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 13:09
Average session length (minutes:seconds) 17:03
Longest session recorded (minutes:seconds) 32:42
Average number of searches completed per session 9.0
Retrievals per search - median 1.0
Retrievals per search - average 23.9
Retrievals per search - standard deviation 87.4
Percent of searches completed with 0 results 41.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 36 40.9%
DISPLAY (excluding automatic displays) 44 50.0%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 0 0.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 8 9.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 98.1%
LONG 1.9%
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 12 33.3% 3 25.0% 3 3.1 2.0
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 2 5.6% 2 100% 0 0.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 9 25.0% 1 11.1% 17 24.9 33.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 13 36.1% 9 69.2% 60 158.0 241.8
EXACT SUBJECT 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
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 36 100% 15 41.7% 5 40.9 112.4
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 14:04
Average session length (minutes:seconds) 16:57
Longest session recorded (minutes:seconds) 84:37
Average number of searches completed per session 5.1
Retrievals per search - median 2.0
Retrievals per search - average 133.0
Retrievals per search - standard deviation 552.3
Percent of searches completed with 0 results 26.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 260 49.1%
DISPLAY (excluding automatic displays) 145 27.4%
HELP 2 0.4%
EXPLAIN 2 0.4%
SET/RESET 22 4.2%
SHOW 2 0.4%
ADD ON (AND, OR, AND NOT) 22 4.2%
LOGON or LOGOFF 70 13.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 0.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.9%
SHORT 74.4%
LONG 23.3%
TAGS 0.0%
FIELDS 0.9%
PERIODICALS 0.4%
COMMENTS 0.0%
Other 0.0%
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 33 11.9% 5 15.2% 406 1043.4 1433.3
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 111 40.1% 35 31.5% 1 28.4 87.5
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 34 12.3% 9 26.5% 27 100.6 261.3
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 2 0.7% 1 50.0% 1 1.0 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 97 35.0% 22 22.7% 8 362.2 988.2
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 17 6.5% 0 0.0% 861 1479.3 1642.0
Single 243 93.5% 72 29.6% 5 62.9 233.0
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:36
Average session length (minutes:seconds) 8:16
Longest session recorded (minutes:seconds) 33:24
Average number of searches completed per session 2.9
Retrievals per search - median 34.0
Retrievals per search - average 2405.6
Retrievals per search - standard deviation 3205.9
Percent of searches completed with 0 results 5.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 93 16.1%
DISPLAY (excluding automatic displays) 342 59.2%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 17 2.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 45 7.8%
LOGON or LOGOFF 60 10.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 21 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 47.3%
SHORT 51.0%
LONG 0.8%
TAGS 0.0%
FIELDS 0.3%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.6%
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 14 12.6% 1 7.1% 13 13.2 10.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 5 4.5% 1 20.0% 12 47.3 79.0
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 69 62.2% 2 2.9% 3,646 3495.0 3468.5
ABSTRACT 4 3.6% 1 25.0% 21 23.0 3.5
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 10 9.0% 1 10.0% 27 170.1 210.2
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 9 8.1% 0 0.0% 6,285 6285.0 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 18 19.4% 1 5.6% 6,285 3345.5 3214.1
Single 75 80.6% 4 5.3% 40 2520.4 3394.2
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.9%
Ten most frequent errors:
1. NS command - no next screen 32.9%
2. First word of command is invalid 16.6%
3. Z39.50 host cannot process command 11.6%
4. Too many truncated words to process 6.6%
5. FIND command with invalid index name 4.8%
6. DISPLAY command contains invalid word 4.3%
7. SAVE command issued from a Z39.50 db 3.1%
8. Index invalid in current database 2.4%
9. 945 2.3%
10. Invalid FORM command issued 1.5%
11. All others 13.9%
Ten most frequent EXPLAIN requests:
1. G496 12.5%
2. LOCATE (Z39.50 DBS) 9.4%
3. INDEXES (WCAT DB) 9.4%
4. GUIDE (Z39.50 A&I DBS w/o truncation) 9.4%
5. FIND (Z39.50 DBS) 6.3%
6. Unrecognized term-reminders off 6.3%
7. DATABASES 6.3%
8. DISPLAY (Z39.50 non-A&I DBS) 3.1%
9. G233 3.1%
10. G324 3.1%
11. All others 31.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.4%
2. FIND command with zero results 15.1%
3. DISPLAY command-complete in one screen 11.3%
4. DISPLAY command-first of >1 screen 7.5%
5. First word of command is invalid 5.7%
6. 938 5.7%
7. SET DB command entered w/o modifier 3.8%
8. FIND command with invalid index name 3.8%
9. DISPLAY command - middle of >1 screen 3.8%
10. 428 3.8%
11. All others 13.2%
Ten most frequent SHOW requests:
1. HISTORY 91.2%
2. SETTINGS (Z39.50 DBS) 2.9%
3. GLOSSARY 2.9%
4. SEARCH 2.9%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)