MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 06/23/01 through 06/29/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 82 375 457
Davis 234 55 289
Irvine 75 0 75
Los Angeles 6 70 76
Riverside 118 11 129
San Diego 55 21 76
San Francisco 18 0 18
Santa Barbara 19 13 32
Santa Cruz 19 3 22
Other - UC 0 18 18
Other-Network UC n/a 1,993 1,993
_______ ______ _____
626 2,559 3,185
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 13 43 275
2-4 a.m. 1 6 27
4-6 a.m. 33 69 166
6-8 a.m. 103 320 1,438
8-10 a.m. 387 1,001 6,419
10-12 a.m. 666 1,821 13,583
12-2 p.m. 452 1,366 9,728
2-4 p.m. 485 1,247 10,980
4-6 p.m. 505 1,727 14,051
6-8 p.m. 296 1,196 11,680
8-10 p.m. 107 557 3,427
10-12 p.m. 137 646 4,333
__________ __________ __________ _________________
Total: 3,185 9,999 76,107
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 241 1,259 1,500
Davis 616 104 720
Irvine 208 0 208
Los Angeles 26 200 226
Riverside 451 28 479
San Diego 233 47 280
San Francisco 67 0 67
Santa Barbara 42 38 80
Santa Cruz 36 20 56
Other - UC 0 34 34
Other-Network UC n/a 6,349 6,349
_______ ______ _____
1,920 8,079 9,999
Number of FIND commands by database
WorldCat 8,763
Art Index 15
ArticleFirst 424
ContentsFirst 8
ERIC 0
GPO 0
PapersFirst Index 353
ProceedingsFirst Index 82
SocAbstracts 0
PAIS International 0
MLA Bibliography 317
RILM Index 37
Total number of FIND commands 9,999
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,397 11,321 12,718
Davis 3,789 704 4,493
Irvine 1,448 0 1,448
Los Angeles 438 2,870 3,308
Riverside 3,639 89 3,728
San Diego 1,757 232 1,989
San Francisco 707 0 707
Santa Barbara 618 250 868
Santa Cruz 152 558 710
Other - UC 0 148 148
Other-Network UC n/a 45,990 45,990
_______ ______ _____
13,945 62,162 76,107
Number of Records Displayed by database
WorldCat 70,400
Art Index 213
ArticleFirst 2,243
ContentsFirst 72
ERIC 0
GPO 0
PapersFirst Index 660
ProceedingsFirst Index 356
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,125
RILM Index 38
Total number of Records Displayed 76,107
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,541 79.8%
Art Index 12 0.4%
ArticleFirst 279 8.8%
ContentsFirst 11 0.3%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 198 6.2%
ProceedingsFirst Index 52 1.6%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 88 2.8%
RILM Index 4 0.1%
Percent of searches done in the WCAT database 87.6%
Percent of searches done in the ART database 0.2%
Percent of searches done in the JRNL database 4.2%
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 3.5%
Percent of searches done in the PROC database 0.8%
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 3.2%
Percent of searches done in the RILM database 0.4%
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 2.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 1.7
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 14:34
Average session length (minutes:seconds) 21:24
Longest session recorded (minutes:seconds) 276:09
Average number of searches completed per session 3.4
Retrievals per search - median 2.0
Retrievals per search - average 510.6
Retrievals per search - standard deviation 9746.9
Percent of searches completed with 0 results 26.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,737 34.0%
DISPLAY (excluding automatic displays) 9,983 43.9%
HELP 27 0.1%
EXPLAIN 52 0.2%
SET/RESET 1,810 8.0%
SHOW 61 0.3%
ADD ON (AND, OR, AND NOT) 1,026 4.5%
LOGON or LOGOFF 1,712 7.5%
COMMENT 0 0.0%
USE 7 0.0%
OTHER 347 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.6%
SHORT 39.8%
LONG 7.7%
TAGS 0.1%
FIELDS 11.5%
PERIODICALS 22.5%
COMMENTS 0.0%
Other 7.8%
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 593 7.3% 153 25.8% 2 26.0 114.2
SUBJECT 70 0.9% 14 20.0% 39 500.7 1258.3
EXACT SUBJECT 6 0.1% 3 50.0% 3,373 2249.0 1946.8
SERIES 131 1.6% 50 38.2% 6 1481.1 12826.7
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 8 0.1% 2 25.0% 49 45.2 36.4
LANGUAGE 6 0.1% 0 0.0% 135 218.8 239.1
FORM 109 1.3% 14 12.8% 21 134.2 249.7
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 8 0.1% 3 37.5% 6 30.8 57.8
ACCESSION NUMBER 134 1.6% 9 6.7% 1 1.0 0.0
PLACE OF PUBL. 8 0.1% 1 12.5% 7 4684.0 7943.6
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 720 8.8% 231 32.1% 2 7.4 33.3
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,582 19.4% 492 31.1% 6 79.1 488.7
EXACT PE 138 1.7% 39 28.3% 4 17.5 45.5
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 126 1.5% 21 16.7% 10 102.6 272.3
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,512 55.4% 1,143 25.3% 11 1222.9 15547.3
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 396 5.1% 69 17.4% 7 81.2 213.7
Single 7,333 94.9% 2,027 27.6% 6 825.8 12506.6
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:32
Average session length (minutes:seconds) 9:35
Longest session recorded (minutes:seconds) 43:05
Average number of searches completed per session 1.3
Retrievals per search - median 16.0
Retrievals per search - average 72.4
Retrievals per search - standard deviation 134.3
Percent of searches completed with 0 results 33.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 13 18.1%
DISPLAY (excluding automatic displays) 23 31.9%
HELP 7 9.7%
EXPLAIN 5 6.9%
SET/RESET 4 5.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 2.8%
LOGON or LOGOFF 17 23.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 85.7%
LONG 3.6%
TAGS 0.0%
FIELDS 10.7%
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 3 23.1% 2 66.7% 16 16.0 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
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 4 30.8% 1 25.0% 92 114.7 39.3
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 6 46.2% 2 33.3% 17 137.8 252.3
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 0 0.0% 0 0.0% 0 0.0 0.0
Single 13 100% 5 38.5% 58 113.9 171.5
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 13:38
Average session length (minutes:seconds) 17:09
Longest session recorded (minutes:seconds) 55:45
Average number of searches completed per session 1.5
Retrievals per search - median 2.0
Retrievals per search - average 276.9
Retrievals per search - standard deviation 1265.8
Percent of searches completed with 0 results 37.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 360 37.7%
DISPLAY (excluding automatic displays) 195 20.4%
HELP 2 0.2%
EXPLAIN 5 0.5%
SET/RESET 239 25.1%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 64 6.7%
LOGON or LOGOFF 68 7.1%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 18 1.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 16.6%
SHORT 56.9%
LONG 0.0%
TAGS 0.0%
FIELDS 7.5%
PERIODICALS 18.2%
COMMENTS 0.0%
Other 0.8%
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 220 57.4% 101 45.9% 4 59.4 208.5
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 14 3.7% 10 71.4% 10 9.0 7.2
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 33 8.6% 8 24.2% 6 91.4 290.1
EXACT PE 1 0.3% 1 100% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 115 30.0% 27 23.5% 33 1216.8 2563.8
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 22 6.1% 9 40.9% 4 32.0 69.4
Single 338 93.9% 128 37.9% 7 550.7 1758.3
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 15:05
Average session length (minutes:seconds) 15:05
Longest session recorded (minutes:seconds) 16:51
Average number of searches completed per session 0.7
Retrievals per search - median 0.0
Retrievals per search - average 36.3
Retrievals per search - standard deviation 79.6
Percent of searches completed with 0 results 75.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 8 22.2%
DISPLAY (excluding automatic displays) 10 27.8%
HELP 2 5.6%
EXPLAIN 3 8.3%
SET/RESET 10 27.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 8.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 54.5%
SHORT 36.4%
LONG 9.1%
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 2 25.0% 2 100% 0 0.0 0.0
EXACT JOURNAL 4 50.0% 2 50.0% 145 145.0 113.1
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 1 12.5% 1 100% 0 0.0 0.0
EXACT SUBJECT 1 12.5% 1 100% 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 8 100% 6 75.0% 145 145.0 113.1
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 15:05
Average session length (minutes:seconds) 22:31
Longest session recorded (minutes:seconds) 118:13
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 147.4
Retrievals per search - standard deviation 692.3
Percent of searches completed with 0 results 48.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 290 39.0%
DISPLAY (excluding automatic displays) 143 19.2%
HELP 3 0.4%
EXPLAIN 7 0.9%
SET/RESET 184 24.7%
SHOW 6 0.8%
ADD ON (AND, OR, AND NOT) 63 8.5%
LOGON or LOGOFF 39 5.2%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 8 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.9%
SHORT 54.2%
LONG 1.1%
TAGS 0.0%
FIELDS 10.5%
PERIODICALS 19.5%
COMMENTS 0.0%
Other 6.8%
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 87 27.8% 18 20.7% 40 533.5 1026.2
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 182 58.1% 109 59.9% 3 150.4 1050.8
EXACT TITLE 3 1.0% 2 66.7% 1 1.0 0.0
KEYWORD 7 2.2% 4 57.1% 46 31.7 24.8
CONFERENCE 5 1.6% 1 20.0% 1,066 802.8 526.5
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 0.6% 2 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 4 1.3% 2 50.0% 2 2.0 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 21 6.7% 2 9.5% 3 17.4 27.9
EXACT PE 2 0.6% 0 0.0% 6 5.5 0.7
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 24 8.3% 6 25.0% 2 6.2 11.8
Single 265 91.7% 128 48.3% 13 373.9 1073.3
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 11:26
Average session length (minutes:seconds) 10:30
Longest session recorded (minutes:seconds) 25:06
Average number of searches completed per session 1.6
Retrievals per search - median 1.0
Retrievals per search - average 11.6
Retrievals per search - standard deviation 65.9
Percent of searches completed with 0 results 47.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 78 35.0%
DISPLAY (excluding automatic displays) 60 26.9%
HELP 2 0.9%
EXPLAIN 9 4.0%
SET/RESET 44 19.7%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 4 1.8%
LOGON or LOGOFF 18 8.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 58.3%
SHORT 19.4%
LONG 5.6%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 16.7%
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 9 11.5% 6 66.7% 5 10.3 11.9
CONFERENCE 67 85.9% 31 46.3% 3 8.4 10.8
CONFERENCE PLACE 1 1.3% 0 0.0% 596 596.0 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 1 1.3% 1 100% 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 78 100% 38 48.7% 4 23.3 93.5
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:10
Average session length (minutes:seconds) 9:27
Longest session recorded (minutes:seconds) 50:58
Average number of searches completed per session 3.6
Retrievals per search - median 3.0
Retrievals per search - average 43.4
Retrievals per search - standard deviation 224.1
Percent of searches completed with 0 results 32.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 312 44.6%
DISPLAY (excluding automatic displays) 198 28.3%
HELP 9 1.3%
EXPLAIN 12 1.7%
SET/RESET 45 6.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 5 0.7%
LOGON or LOGOFF 96 13.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 23 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.2%
SHORT 79.8%
LONG 10.7%
TAGS 0.0%
FIELDS 0.4%
PERIODICALS 4.6%
COMMENTS 0.0%
Other 0.4%
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 46 14.4% 14 30.4% 28 138.5 389.2
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 81 25.4% 37 45.7% 5 32.9 65.9
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 38 11.9% 13 34.2% 10 150.6 555.6
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 2 0.6% 0 0.0% 3 3.0 2.8
EXACT PE 3 0.9% 0 0.0% 20 18.7 2.3
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 149 46.7% 42 28.2% 8 37.5 161.0
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 8 2.6% 5 62.5% 2 2.7 2.1
Single 303 97.4% 96 31.7% 10 66.2 274.4
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 6:15
Average session length (minutes:seconds) 16:46
Longest session recorded (minutes:seconds) 42:26
Average number of searches completed per session 9.3
Retrievals per search - median 0.0
Retrievals per search - average 1.0
Retrievals per search - standard deviation 3.1
Percent of searches completed with 0 results 78.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 37 60.7%
DISPLAY (excluding automatic displays) 14 22.9%
HELP 0 0.0%
EXPLAIN 1 1.6%
SET/RESET 3 4.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 4 6.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 3.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 82.4%
LONG 17.6%
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 2.7% 0 0.0% 6 6.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 35 94.6% 28 80.0% 2 4.6 5.7
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 1 2.7% 1 100% 0 0.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
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 37 100% 29 78.4% 3 4.8 5.3
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 30.9%
2. First word of command is invalid 19.0%
3. Z39.50 host cannot process command 12.4%
4. FIND command with invalid index name 6.6%
5. Too many truncated words to process 5.8%
6. DISPLAY command contains invalid word 4.8%
7. Max. # of ports to a Z39 db are in use 2.3%
8. Search term missing from search command 1.9%
9. DISPLAY command - no FIND results 1.8%
10. PS command - no previous screen 1.2%
11. All others 13.3%
Ten most frequent EXPLAIN requests:
1. INDEXES (WCAT DB) 13.8%
2. LOCATE (Z39.50 DBS) 11.7%
3. GUIDE (Z39.50 A&I DBS w/o truncation) 7.4%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 6.4%
5. INDEXES (PROC DB) 5.3%
6. Unrecognized term 5.3%
7. DISPLAY (Z39.50 non-A&I DBS) 4.3%
8. G324 3.2%
9. GUIDE (ART DB) 3.2%
10. LOCATE (Z39.50 DBS) 3.2%
11. All others 36.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 28.1%
2. First word of command is invalid 10.3%
3. FIND command with zero results 6.8%
4. DISPLAY command-first of >1 screen 4.8%
5. FIND command with invalid index name 4.1%
6. DISPLAY command - last of >1 screen 4.1%
7. F/BR with index invalid in current DB 4.1%
8. DISPLAY command - middle of >1 screen 3.4%
9. NS command - no next screen 2.7%
10. FIND command retrieves >1 book 2.7%
11. All others 28.8%
Ten most frequent SHOW requests:
1. HISTORY 95.7%
2. SEARCH 2.9%
3. SETTINGS (Z39.50 DBS) 1.4%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)