MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 06/16/01 through 06/22/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 124 423 547
Davis 250 48 298
Irvine 62 0 62
Los Angeles 0 81 81
Riverside 134 1 135
San Diego 41 22 63
San Francisco 27 0 27
Santa Barbara 7 17 24
Santa Cruz 57 13 70
Other - UC 2 13 15
Other-Network UC n/a 2,014 2,014
_______ ______ _____
704 2,632 3,336
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 15 42 210
2-4 a.m. 5 19 59
4-6 a.m. 67 159 336
6-8 a.m. 157 461 1,822
8-10 a.m. 431 1,312 8,404
10-12 a.m. 618 1,824 16,129
12-2 p.m. 467 1,351 11,671
2-4 p.m. 628 1,819 15,652
4-6 p.m. 421 1,556 12,948
6-8 p.m. 248 857 7,335
8-10 p.m. 138 560 2,752
10-12 p.m. 141 760 4,834
__________ __________ __________ _________________
Total: 3,336 10,720 82,152
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 431 1,374 1,805
Davis 759 116 875
Irvine 190 0 190
Los Angeles 0 301 301
Riverside 774 3 777
San Diego 181 30 211
San Francisco 81 0 81
Santa Barbara 18 90 108
Santa Cruz 144 48 192
Other - UC 3 33 36
Other-Network UC n/a 6,144 6,144
_______ ______ _____
2,581 8,139 10,720
Number of FIND commands by database
WorldCat 8,897
Art Index 47
ArticleFirst 670
ContentsFirst 13
ERIC 0
GPO 0
PapersFirst Index 559
ProceedingsFirst Index 176
SocAbstracts 0
PAIS International 0
MLA Bibliography 333
RILM Index 25
Total number of FIND commands 10,720
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,400 17,643 20,043
Davis 7,585 918 8,503
Irvine 1,666 0 1,666
Los Angeles 0 3,382 3,382
Riverside 4,760 36 4,796
San Diego 1,036 367 1,403
San Francisco 1,140 0 1,140
Santa Barbara 77 475 552
Santa Cruz 1,120 761 1,881
Other - UC 0 135 135
Other-Network UC n/a 38,651 38,651
_______ ______ _____
19,784 62,368 82,152
Number of Records Displayed by database
WorldCat 73,179
Art Index 380
ArticleFirst 2,607
ContentsFirst 386
ERIC 0
GPO 0
PapersFirst Index 1,350
ProceedingsFirst Index 852
SocAbstracts 0
PAIS International 0
MLA Bibliography 3,329
RILM Index 69
Total number of Records Displayed 82,152
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,501 75.0%
Art Index 17 0.5%
ArticleFirst 340 10.2%
ContentsFirst 21 0.6%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 254 7.6%
ProceedingsFirst Index 74 2.2%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 122 3.7%
RILM Index 7 0.2%
Percent of searches done in the WCAT database 83.0%
Percent of searches done in the ART database 0.4%
Percent of searches done in the JRNL database 6.3%
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 5.2%
Percent of searches done in the PROC database 1.6%
Percent of searches done in the SOC database 0.0%
Percent of searches done in the PAIS database 0.0%
Percent of searches done in the MLA database 3.1%
Percent of searches done in the RILM database 0.2%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.0
Standard deviation in seconds 4.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.3
Standard deviation in seconds 4.2
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:24
Average session length (minutes:seconds) 20:44
Longest session recorded (minutes:seconds) 179:45
Average number of searches completed per session 3.6
Retrievals per search - median 3.0
Retrievals per search - average 370.4
Retrievals per search - standard deviation 7693.1
Percent of searches completed with 0 results 25.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,776 33.3%
DISPLAY (excluding automatic displays) 10,352 44.3%
HELP 24 0.1%
EXPLAIN 45 0.2%
SET/RESET 1,660 7.1%
SHOW 64 0.3%
ADD ON (AND, OR, AND NOT) 1,121 4.8%
LOGON or LOGOFF 1,940 8.3%
COMMENT 0 0.0%
USE 14 0.1%
OTHER 365 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.4%
SHORT 42.4%
LONG 8.1%
TAGS 0.1%
FIELDS 9.3%
PERIODICALS 20.4%
COMMENTS 0.0%
Other 9.3%
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 686 8.2% 187 27.3% 3 17.6 43.7
SUBJECT 180 2.2% 16 8.9% 86 2916.5 26204.0
EXACT SUBJECT 6 0.1% 2 33.3% 15 30.8 41.2
SERIES 123 1.5% 36 29.3% 8 316.2 1000.2
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 13 0.2% 2 15.4% 180 655.3 1210.5
FORM 105 1.3% 8 7.6% 10 74.8 334.2
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 1 0.0% 1 100% 0 0.0 0.0
NOTES 6 0.1% 1 16.7% 206 30635.4 66368.1
ACCESSION NUMBER 151 1.8% 3 2.0% 1 1.0 0.0
PLACE OF PUBL. 8 0.1% 0 0.0% 7,393 40243.1 97612.1
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 5 0.1% 4 80.0% 1 1.0 0.0
ISBN/ISSN/LCCN 654 7.9% 253 38.7% 1 5.1 18.3
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,371 16.5% 378 27.6% 6 92.6 715.2
EXACT PE 252 3.0% 49 19.4% 3 21.4 99.7
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 290 3.5% 48 16.6% 6 108.5 1024.5
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,475 53.7% 1,173 26.2% 10 636.5 9681.8
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 537 6.9% 97 18.1% 6 115.5 899.6
Single 7,230 93.1% 1,961 27.1% 7 593.6 9976.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 1:52
Average session length (minutes:seconds) 23:39
Longest session recorded (minutes:seconds) 234:37
Average number of searches completed per session 2.8
Retrievals per search - median 3.0
Retrievals per search - average 118.9
Retrievals per search - standard deviation 484.6
Percent of searches completed with 0 results 38.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 42 33.1%
DISPLAY (excluding automatic displays) 42 33.1%
HELP 2 1.6%
EXPLAIN 3 2.4%
SET/RESET 6 4.7%
SHOW 2 1.6%
ADD ON (AND, OR, AND NOT) 5 3.9%
LOGON or LOGOFF 21 16.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 17.6%
SHORT 78.4%
LONG 3.9%
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 16 37.2% 4 25.0% 34 43.5 64.7
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 10 23.3% 3 30.0% 24 37.0 40.8
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 17 39.5% 6 35.3% 3 437.0 963.1
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 1 2.4% 0 0.0% 1 1.0 0.0
Single 41 97.6% 13 31.7% 26 199.5 619.2
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 17:25
Average session length (minutes:seconds) 23:10
Longest session recorded (minutes:seconds) 64:34
Average number of searches completed per session 2.0
Retrievals per search - median 1.0
Retrievals per search - average 105.0
Retrievals per search - standard deviation 830.4
Percent of searches completed with 0 results 39.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 563 39.8%
DISPLAY (excluding automatic displays) 337 23.8%
HELP 7 0.5%
EXPLAIN 10 0.7%
SET/RESET 274 19.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 107 7.6%
LOGON or LOGOFF 102 7.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 13 0.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.8%
SHORT 57.1%
LONG 1.2%
TAGS 0.0%
FIELDS 8.1%
PERIODICALS 25.3%
COMMENTS 0.0%
Other 0.5%
ArticleFirst Database Statistics continued:
___________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 342 49.9% 161 47.1% 6 52.6 156.4
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 15 2.2% 9 60.0% 28 24.0 19.2
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 60 8.7% 14 23.3% 4 25.5 55.2
EXACT PE 14 2.0% 0 0.0% 3 12.2 21.0
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 255 37.2% 73 28.6% 17 356.3 1575.8
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 118 21.0% 38 32.2% 8 89.6 329.9
Single 445 79.0% 178 40.0% 9 230.4 1293.4
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 12:09
Average session length (minutes:seconds) 9:02
Longest session recorded (minutes:seconds) 13:46
Average number of searches completed per session 0.6
Retrievals per search - median 0.0
Retrievals per search - average 40.3
Retrievals per search - standard deviation 62.3
Percent of searches completed with 0 results 53.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 13 22.0%
DISPLAY (excluding automatic displays) 15 25.4%
HELP 2 3.4%
EXPLAIN 2 3.4%
SET/RESET 18 30.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 6 10.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 5.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 86.7%
SHORT 0.0%
LONG 13.3%
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 8 61.5% 4 50.0% 72 99.5 77.8
EXACT JOURNAL 5 38.5% 3 60.0% 63 63.0 45.3
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 13 100% 7 53.8% 72 87.3 66.3
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 17:32
Average session length (minutes:seconds) 23:56
Longest session recorded (minutes:seconds) 119:15
Average number of searches completed per session 2.2
Retrievals per search - median 1.0
Retrievals per search - average 89.0
Retrievals per search - standard deviation 566.7
Percent of searches completed with 0 results 45.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 466 42.0%
DISPLAY (excluding automatic displays) 236 21.3%
HELP 4 0.4%
EXPLAIN 8 0.7%
SET/RESET 229 20.6%
SHOW 6 0.5%
ADD ON (AND, OR, AND NOT) 93 8.4%
LOGON or LOGOFF 54 4.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 14 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.2%
SHORT 52.9%
LONG 2.1%
TAGS 0.0%
FIELDS 10.6%
PERIODICALS 14.6%
COMMENTS 0.0%
Other 11.6%
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 184 33.3% 62 33.7% 11 194.6 1005.1
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EDITOR 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 281 50.8% 159 56.6% 4 136.7 525.1
EXACT TITLE 9 1.6% 5 55.6% 2 1.8 0.5
KEYWORD 6 1.1% 5 83.3% 1 1.0 0.0
CONFERENCE 9 1.6% 5 55.6% 378 455.8 461.2
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 3 0.5% 1 33.3% 2,108 2108.0 2935.9
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 31 5.6% 12 38.7% 38 504.1 860.6
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 4 0.7% 1 25.0% 162 162.0 0.0
PERIODICAL 25 4.5% 4 16.0% 8 89.4 288.7
EXACT PE 1 0.2% 0 0.0% 272 272.0 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 82 17.6% 43 52.4% 5 247.8 644.1
Single 384 82.4% 164 42.7% 10 178.8 850.1
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 24:38
Average session length (minutes:seconds) 26:14
Longest session recorded (minutes:seconds) 46:15
Average number of searches completed per session 2.4
Retrievals per search - median 0.0
Retrievals per search - average 8.8
Retrievals per search - standard deviation 23.5
Percent of searches completed with 0 results 53.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 166 40.7%
DISPLAY (excluding automatic displays) 101 24.8%
HELP 14 3.4%
EXPLAIN 27 6.6%
SET/RESET 62 15.2%
SHOW 3 0.7%
ADD ON (AND, OR, AND NOT) 10 2.5%
LOGON or LOGOFF 19 4.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 57.8%
SHORT 17.0%
LONG 5.2%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 20.0%
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 18 10.7% 11 61.1% 5 17.6 22.3
CONFERENCE 141 83.4% 74 52.5% 5 16.7 26.3
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 7 4.1% 5 71.4% 130 130.0 83.4
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 3 1.8% 2 66.7% 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 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 1.8% 2 66.7% 5 5.0 0.0
Single 163 98.2% 88 54.0% 5 19.9 32.9
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:10
Average session length (minutes:seconds) 8:54
Longest session recorded (minutes:seconds) 193:31
Average number of searches completed per session 2.7
Retrievals per search - median 4.0
Retrievals per search - average 128.6
Retrievals per search - standard deviation 729.1
Percent of searches completed with 0 results 27.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 319 38.8%
DISPLAY (excluding automatic displays) 214 26.0%
HELP 10 1.2%
EXPLAIN 22 2.7%
SET/RESET 46 5.6%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 14 1.7%
LOGON or LOGOFF 157 19.1%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 37 4.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 8.5%
SHORT 75.8%
LONG 10.0%
TAGS 0.0%
FIELDS 0.4%
PERIODICALS 4.3%
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 52 15.6% 12 23.1% 37 389.8 903.9
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 78 23.4% 34 43.6% 3 172.3 902.4
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 9.0% 9 30.0% 8 125.5 467.0
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 8 2.4% 2 25.0% 54 52.5 40.6
EXACT PE 1 0.3% 0 0.0% 25 25.0 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 164 49.2% 34 20.7% 10 130.7 881.9
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 15 4.7% 3 20.0% 3 43.1 88.0
Single 303 95.3% 85 28.1% 12 193.2 893.4
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 2:59
Average session length (minutes:seconds) 2:59
Longest session recorded (minutes:seconds) 2:59
Average number of searches completed per session 3.6
Retrievals per search - median 1.0
Retrievals per search - average 598.4
Retrievals per search - standard deviation 2029.0
Percent of searches completed with 0 results 48.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 23 48.9%
DISPLAY (excluding automatic displays) 13 27.7%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 3 6.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 4.3%
LOGON or LOGOFF 5 10.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 22.7%
SHORT 68.2%
LONG 9.1%
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 1 4.3% 0 0.0% 1 1.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 15 65.2% 10 66.7% 1 6.6 12.5
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 30.4% 2 28.6% 170 2978.4 3981.1
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
DISSERTATION SRC 0 0.0% 0 0.0% 0 0.0 0.0
MAIN WORK 0 0.0% 0 0.0% 0 0.0 0.0
REVIEW ITEM 0 0.0% 0 0.0% 0 0.0 0.0
REVIEWED WORK 0 0.0% 0 0.0% 0 0.0 0.0
COLLECTED WORKS 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
SHORT ENTRY 0 0.0% 0 0.0% 0 0.0 0.0
SPONSOR 0 0.0% 0 0.0% 0 0.0 0.0
CLASSIFICATION 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 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 23 100% 12 52.2% 9 1356.9 2958.0
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.0%
Ten most frequent errors:
1. NS command - no next screen 34.7%
2. First word of command is invalid 15.6%
3. Z39.50 host cannot process command 9.7%
4. FIND command with invalid index name 6.3%
5. DISPLAY command contains invalid word 4.8%
6. Too many truncated words to process 4.7%
7. Index invalid in current database 2.3%
8. Max. # of ports to a Z39 db are in use 2.2%
9. Search term missing from search command 2.0%
10. DISPLAY command - no FIND results 1.6%
11. All others 16.0%
Ten most frequent EXPLAIN requests:
1. INDEXES (PROC DB) 12.0%
2. INDEXES (WCAT DB) 10.3%
3. LOCATE (Z39.50 DBS) 9.4%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 7.7%
5. G500 6.0%
6. FIND (Z39.50 DBS) 6.0%
7. INDEXES (JRNL DB) 6.0%
8. G508 4.3%
9. Unrecognized term-reminders off 4.3%
10. DISPLAY (Z39.50 non-A&I DBS) 3.4%
11. All others 30.8%
Ten most frequent HELP situations:
1. Help requested from SET DB command 35.0%
2. F/BR with index invalid in current DB 12.2%
3. First word of command is invalid 7.8%
4. FIND command with zero results 6.1%
5. DISPLAY command-complete in one screen 4.4%
6. DISPLAY command - middle of >1 screen 4.4%
7. DISPLAY command-first of >1 screen 3.9%
8. FIND command retrieves >1 book 3.3%
9. Help requested from SHOW SEARCH 2.8%
10. SAVE command issued from a Z39.50 db 2.2%
11. All others 17.8%
Ten most frequent SHOW requests:
1. HISTORY 83.1%
2. SEARCH 6.5%
3. SETTINGS (Z39.50 DBS) 2.6%
4. Z39.50 NEWS 1.3%
5. GLOSSARY 1.3%
6. LIBRARY SETTINGS 1.3%
7. LOCAL INFORMATION 1.3%
8. LIBRARY LOCATIONS 1.3%
9. LOADING STATISTICS 1.3%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)