MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 07/14/01 through 07/20/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 100 466 566
Davis 388 68 456
Irvine 56 0 56
Los Angeles 1 88 89
Riverside 180 0 180
San Diego 64 21 85
San Francisco 19 0 19
Santa Barbara 19 9 28
Santa Cruz 59 4 63
Other - UC 0 24 24
Other-Network UC n/a 2,038 2,038
_______ ______ _____
886 2,718 3,604
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 17 99
2-4 a.m. 1 6 27
4-6 a.m. 39 81 202
6-8 a.m. 109 329 1,528
8-10 a.m. 407 899 5,109
10-12 a.m. 705 2,241 14,836
12-2 p.m. 576 1,694 10,982
2-4 p.m. 597 1,990 14,286
4-6 p.m. 639 2,150 18,351
6-8 p.m. 280 902 8,490
8-10 p.m. 149 617 4,573
10-12 p.m. 96 463 3,289
__________ __________ __________ _________________
Total: 3,604 11,389 81,772
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 256 1,638 1,894
Davis 792 203 995
Irvine 129 0 129
Los Angeles 2 255 257
Riverside 1,863 0 1,863
San Diego 249 76 325
San Francisco 84 0 84
Santa Barbara 65 15 80
Santa Cruz 116 11 127
Other - UC 0 52 52
Other-Network UC n/a 5,583 5,583
_______ ______ _____
3,556 7,833 11,389
Number of FIND commands by database
WorldCat 9,942
Art Index 28
ArticleFirst 559
ContentsFirst 12
ERIC 0
GPO 0
PapersFirst Index 483
ProceedingsFirst Index 104
SocAbstracts 0
PAIS International 0
MLA Bibliography 251
RILM Index 10
Total number of FIND commands 11,389
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,876 16,093 17,969
Davis 4,730 1,273 6,003
Irvine 1,331 0 1,331
Los Angeles 9 2,216 2,225
Riverside 9,913 0 9,913
San Diego 1,082 612 1,694
San Francisco 871 0 871
Santa Barbara 593 266 859
Santa Cruz 512 49 561
Other - UC 0 301 301
Other-Network UC n/a 40,045 40,045
_______ ______ _____
20,917 60,855 81,772
Number of Records Displayed by database
WorldCat 75,236
Art Index 266
ArticleFirst 1,976
ContentsFirst 584
ERIC 0
GPO 0
PapersFirst Index 1,456
ProceedingsFirst Index 551
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,693
RILM Index 10
Total number of Records Displayed 81,772
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,805 77.8%
Art Index 28 0.8%
ArticleFirst 310 8.6%
ContentsFirst 17 0.5%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 277 7.7%
ProceedingsFirst Index 65 1.8%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 99 2.7%
RILM Index 3 0.1%
Percent of searches done in the WCAT database 87.3%
Percent of searches done in the ART database 0.2%
Percent of searches done in the JRNL database 4.9%
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 4.2%
Percent of searches done in the PROC database 0.9%
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 2.2%
Percent of searches done in the RILM database 0.1%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 1.9
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) 14:33
Average session length (minutes:seconds) 20:31
Longest session recorded (minutes:seconds) 227:53
Average number of searches completed per session 3.5
Retrievals per search - median 2.0
Retrievals per search - average 224.9
Retrievals per search - standard deviation 4941.4
Percent of searches completed with 0 results 27.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8,835 34.5%
DISPLAY (excluding automatic displays) 11,087 43.3%
HELP 36 0.1%
EXPLAIN 69 0.3%
SET/RESET 1,932 7.5%
SHOW 63 0.2%
ADD ON (AND, OR, AND NOT) 1,107 4.3%
LOGON or LOGOFF 2,048 8.0%
COMMENT 0 0.0%
USE 31 0.1%
OTHER 405 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.2%
SHORT 45.5%
LONG 7.4%
TAGS 0.2%
FIELDS 9.2%
PERIODICALS 15.1%
COMMENTS 0.0%
Other 12.4%
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 1,769 18.9% 561 31.7% 4 25.1 66.5
SUBJECT 166 1.8% 33 19.9% 72 1165.5 4173.2
EXACT SUBJECT 1 0.0% 1 100% 0 0.0 0.0
SERIES 219 2.3% 73 33.3% 2 928.3 10653.3
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 19 0.2% 0 0.0% 92 92.1 76.8
LANGUAGE 7 0.1% 4 57.1% 44 162.7 243.7
FORM 102 1.1% 21 20.6% 8 124.3 665.3
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 15 0.2% 7 46.7% 2 29.1 75.2
ACCESSION NUMBER 179 1.9% 9 5.0% 1 1.0 0.0
PLACE OF PUBL. 2 0.0% 1 50.0% 14 14.0 0.0
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 1 0.0% 0 0.0% 3 3.0 0.0
ISBN/ISSN/LCCN 671 7.2% 184 27.4% 1 5.4 54.6
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,159 12.4% 346 29.9% 6 130.0 1346.0
EXACT PE 107 1.1% 27 25.2% 4 13.0 46.2
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 159 1.7% 24 15.1% 9 59.9 160.5
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,792 51.2% 1,274 26.6% 8 459.8 7897.3
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 524 5.9% 119 22.7% 6 64.4 345.3
Single 8,306 94.1% 2,320 27.9% 5 336.9 6331.2
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:52
Average session length (minutes:seconds) 10:04
Longest session recorded (minutes:seconds) 53:56
Average number of searches completed per session 1.0
Retrievals per search - median 17.0
Retrievals per search - average 52.8
Retrievals per search - standard deviation 137.4
Percent of searches completed with 0 results 17.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 28 18.4%
DISPLAY (excluding automatic displays) 51 33.6%
HELP 12 7.9%
EXPLAIN 5 3.3%
SET/RESET 11 7.2%
SHOW 3 2.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 37 24.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.2%
SHORT 80.6%
LONG 14.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.6%
Art Index Database Statistics continued:
________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 8 28.6% 0 0.0% 5 18.1 31.7
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 6 21.4% 2 33.3% 52 62.3 34.2
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
PLACE OF PUBL. 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 14 50.0% 3 21.4% 23 98.6 212.6
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 28 100% 5 17.9% 21 64.3 149.6
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 13:24
Average session length (minutes:seconds) 18:20
Longest session recorded (minutes:seconds) 70:50
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 299.0
Retrievals per search - standard deviation 2529.3
Percent of searches completed with 0 results 38.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 477 39.5%
DISPLAY (excluding automatic displays) 258 21.4%
HELP 11 0.9%
EXPLAIN 9 0.7%
SET/RESET 264 21.9%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 82 6.8%
LOGON or LOGOFF 86 7.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 20 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 13.2%
SHORT 52.7%
LONG 0.0%
TAGS 0.0%
FIELDS 6.5%
PERIODICALS 27.0%
COMMENTS 0.0%
Other 0.6%
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 282 53.1% 134 47.5% 5 534.5 4399.5
EXACT TITLE 1 0.2% 1 100% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 26 4.9% 15 57.7% 1 140.4 449.3
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 48 9.0% 7 14.6% 7 44.8 111.5
EXACT PE 5 0.9% 0 0.0% 7 24.6 36.3
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 169 31.8% 40 23.7% 30 653.9 2294.9
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 54 11.3% 21 38.9% 5 18.7 37.3
Single 423 88.7% 155 36.6% 11 618.4 3629.4
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 15:28
Average session length (minutes:seconds) 47:11
Longest session recorded (minutes:seconds) 113:39
Average number of searches completed per session 0.7
Retrievals per search - median 86.5
Retrievals per search - average 98.9
Retrievals per search - standard deviation 121.8
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 12 15.4%
DISPLAY (excluding automatic displays) 45 57.7%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 16 20.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 5.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 51.1%
SHORT 23.4%
LONG 21.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 4.3%
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 9 75.0% 3 33.3% 127 153.5 145.1
EXACT JOURNAL 3 25.0% 0 0.0% 107 88.7 72.3
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 12 100% 3 25.0% 112 131.9 124.6
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 15:37
Average session length (minutes:seconds) 22:50
Longest session recorded (minutes:seconds) 132:00
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 56.0
Retrievals per search - standard deviation 442.9
Percent of searches completed with 0 results 43.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 417 37.6%
DISPLAY (excluding automatic displays) 302 27.3%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 241 21.8%
SHOW 6 0.5%
ADD ON (AND, OR, AND NOT) 66 6.0%
LOGON or LOGOFF 66 6.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 0.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.2%
SHORT 54.8%
LONG 2.7%
TAGS 0.0%
FIELDS 11.2%
PERIODICALS 13.6%
COMMENTS 0.0%
Other 6.6%
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 150 31.2% 35 23.3% 11 170.4 874.9
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 264 54.9% 151 57.2% 2 27.0 87.9
EXACT TITLE 2 0.4% 1 50.0% 46 46.0 0.0
KEYWORD 8 1.7% 6 75.0% 65 64.5 57.3
CONFERENCE 4 0.8% 2 50.0% 93 92.5 71.4
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT JOURNAL 5 1.0% 1 20.0% 584 760.8 794.6
DATE 14 2.9% 4 28.6% 24 189.3 348.2
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 33 6.9% 8 24.2% 2 16.2 32.2
EXACT PE 1 0.2% 0 0.0% 26 26.0 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 64 15.4% 27 42.2% 2 59.3 194.3
Single 352 84.6% 153 43.5% 7 120.5 679.5
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 17:12
Average session length (minutes:seconds) 27:28
Longest session recorded (minutes:seconds) 66:47
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 8.9
Retrievals per search - standard deviation 27.7
Percent of searches completed with 0 results 43.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 102 36.8%
DISPLAY (excluding automatic displays) 92 33.2%
HELP 4 1.4%
EXPLAIN 3 1.1%
SET/RESET 59 21.3%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 2 0.7%
LOGON or LOGOFF 11 4.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 56.1%
SHORT 12.3%
LONG 4.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 27.2%
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 10 9.8% 7 70.0% 1 1.3 0.6
CONFERENCE 88 86.3% 34 38.6% 4 14.4 33.7
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 4 3.9% 3 75.0% 123 123.0 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 102 100% 44 43.1% 4 15.6 35.7
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:06
Average session length (minutes:seconds) 8:21
Longest session recorded (minutes:seconds) 62:56
Average number of searches completed per session 2.5
Retrievals per search - median 5.0
Retrievals per search - average 171.9
Retrievals per search - standard deviation 616.5
Percent of searches completed with 0 results 23.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 231 36.5%
DISPLAY (excluding automatic displays) 176 27.8%
HELP 6 0.9%
EXPLAIN 5 0.8%
SET/RESET 32 5.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 20 3.2%
LOGON or LOGOFF 128 20.3%
COMMENT 0 0.0%
USE 1 0.2%
OTHER 33 5.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 77.1%
LONG 16.4%
TAGS 0.0%
FIELDS 0.5%
PERIODICALS 1.9%
COMMENTS 0.0%
Other 0.9%
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 81 31.9% 11 13.6% 78 538.0 1080.1
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 52 20.5% 23 44.2% 4 24.3 48.5
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 9 3.5% 5 55.6% 507 380.8 252.5
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 0.4% 0 0.0% 4 4.0 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 111 43.7% 23 20.7% 9 196.9 586.1
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 22 9.5% 2 9.1% 574 746.9 1061.3
Single 209 90.5% 58 27.8% 9 181.1 657.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:04
Average session length (minutes:seconds) 4:04
Longest session recorded (minutes:seconds) 4:12
Average number of searches completed per session 3.3
Retrievals per search - median 5.0
Retrievals per search - average 742.4
Retrievals per search - standard deviation 2317.8
Percent of searches completed with 0 results 30.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10 45.5%
DISPLAY (excluding automatic displays) 4 18.2%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 1 4.5%
SHOW 1 4.5%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 18.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 9.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 66.7%
LONG 16.7%
TAGS 0.0%
FIELDS 16.7%
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 4 40.0% 0 0.0% 11 11.0 6.9
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 1 10.0% 0 0.0% 1 1.0 0.0
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 3 30.0% 1 33.3% 3,690 3689.5 5161.2
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 2 20.0% 2 100% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 10 100% 3 30.0% 17 1060.6 2768.6
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.7%
Ten most frequent errors:
1. NS command - no next screen 33.2%
2. First word of command is invalid 17.9%
3. Z39.50 host cannot process command 9.1%
4. Too many truncated words to process 8.6%
5. FIND command with invalid index name 6.5%
6. DISPLAY command contains invalid word 4.0%
7. Max. # of ports to a Z39 db are in use 1.9%
8. DISPLAY command - no FIND results 1.6%
9. Index invalid in current database 1.6%
10. PS command - no previous screen 1.5%
11. All others 14.1%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 14.3%
2. INDEXES (WCAT DB) 13.2%
3. FIND (Z39.50 DBS) 6.6%
4. G961 4.4%
5. GUIDE (Z39.50 A&I DBS w/o truncation) 4.4%
6. G233 3.3%
7. GUIDE (ART DB) 3.3%
8. COMMANDS (Z39.50 DBS) 3.3%
9. GUIDE: Z39.50 non-A&I DBS w/o truncation 3.3%
10. Unrecognized term-reminders off 3.3%
11. All others 40.7%
Ten most frequent HELP situations:
1. First word of command is invalid 13.8%
2. Help requested from SET DB command 13.8%
3. FIND command with invalid index name 11.3%
4. DISPLAY command-complete in one screen 9.4%
5. FIND command with zero results 8.1%
6. F/BR with index invalid in current DB 6.3%
7. 117 3.8%
8. DISPLAY command - last of >1 screen 3.1%
9. NS of SHOW/EXP command-no next screen 3.1%
10. 938 3.1%
11. All others 24.4%
Ten most frequent SHOW requests:
1. HISTORY 82.4%
2. SETTINGS (Z39.50 DBS) 5.4%
3. SEARCH 5.4%
4. GLOSSARY 2.7%
5. SYSTEM NEWS 1.4%
6. PAGESIZE 1.4%
7. LIBRARY SETTINGS 1.4%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)