MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 07/07/01 through 07/13/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 103 449 552
Davis 145 63 208
Irvine 104 0 104
Los Angeles 0 75 75
Riverside 153 6 159
San Diego 61 20 81
San Francisco 15 0 15
Santa Barbara 13 24 37
Santa Cruz 90 5 95
Other - UC 0 21 21
Other-Network UC n/a 1,933 1,933
_______ ______ _____
684 2,596 3,280
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 13 50 214
2-4 a.m. 2 2 2
4-6 a.m. 52 111 286
6-8 a.m. 119 304 1,159
8-10 a.m. 346 994 6,583
10-12 a.m. 651 1,861 13,114
12-2 p.m. 501 1,263 8,995
2-4 p.m. 563 1,681 11,817
4-6 p.m. 544 1,662 12,521
6-8 p.m. 283 1,058 9,845
8-10 p.m. 105 474 2,736
10-12 p.m. 101 580 4,139
__________ __________ __________ _________________
Total: 3,280 10,040 71,411
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 248 1,539 1,787
Davis 542 173 715
Irvine 300 0 300
Los Angeles 0 218 218
Riverside 858 9 867
San Diego 153 59 212
San Francisco 61 0 61
Santa Barbara 31 44 75
Santa Cruz 154 19 173
Other - UC 0 56 56
Other-Network UC n/a 5,576 5,576
_______ ______ _____
2,347 7,693 10,040
Number of FIND commands by database
WorldCat 8,690
Art Index 24
ArticleFirst 483
ContentsFirst 15
ERIC 0
GPO 0
PapersFirst Index 492
ProceedingsFirst Index 68
SocAbstracts 0
PAIS International 0
MLA Bibliography 259
RILM Index 9
Total number of FIND commands 10,040
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,675 11,568 13,243
Davis 4,358 1,142 5,500
Irvine 2,664 0 2,664
Los Angeles 0 2,640 2,640
Riverside 6,158 119 6,277
San Diego 1,214 452 1,666
San Francisco 701 0 701
Santa Barbara 257 323 580
Santa Cruz 958 218 1,176
Other - UC 0 501 501
Other-Network UC n/a 36,463 36,463
_______ ______ _____
17,985 53,426 71,411
Number of Records Displayed by database
WorldCat 64,552
Art Index 530
ArticleFirst 1,476
ContentsFirst 20
ERIC 0
GPO 0
PapersFirst Index 1,661
ProceedingsFirst Index 179
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,944
RILM Index 49
Total number of Records Displayed 71,411
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,537 77.3%
Art Index 18 0.5%
ArticleFirst 278 8.5%
ContentsFirst 13 0.4%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 272 8.3%
ProceedingsFirst Index 43 1.3%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 112 3.4%
RILM Index 7 0.2%
Percent of searches done in the WCAT database 86.6%
Percent of searches done in the ART database 0.2%
Percent of searches done in the JRNL database 4.8%
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 4.9%
Percent of searches done in the PROC database 0.7%
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 2.6%
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 0.6
2.1 WorldCat Database Statistics
_________________________________
Median session length (minutes:seconds) 13:36
Average session length (minutes:seconds) 20:09
Longest session recorded (minutes:seconds) 256:41
Average number of searches completed per session 3.4
Retrievals per search - median 2.0
Retrievals per search - average 251.8
Retrievals per search - standard deviation 11609
Percent of searches completed with 0 results 25.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,780 33.7%
DISPLAY (excluding automatic displays) 10,264 44.4%
HELP 23 0.1%
EXPLAIN 39 0.2%
SET/RESET 1,789 7.7%
SHOW 36 0.2%
ADD ON (AND, OR, AND NOT) 910 3.9%
LOGON or LOGOFF 1,869 8.1%
COMMENT 0 0.0%
USE 15 0.1%
OTHER 379 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.0%
SHORT 44.0%
LONG 8.5%
TAGS 0.2%
FIELDS 9.3%
PERIODICALS 15.7%
COMMENTS 0.0%
Other 10.3%
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 1,072 13.1% 271 25.3% 4 25.8 72.2
SUBJECT 153 1.9% 31 20.3% 29 9491.6 97008.0
EXACT SUBJECT 1 0.0% 0 0.0% 31,646 31646.0 0.0
SERIES 176 2.1% 53 30.1% 5 146.2 483.5
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
DATE 21 0.3% 0 0.0% 13 28.8 31.5
LANGUAGE 3 0.0% 0 0.0% 13 12.0 9.5
FORM 85 1.0% 18 21.2% 10 846.6 5634.0
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 13 0.2% 1 7.7% 7 46.2 71.7
ACCESSION NUMBER 157 1.9% 6 3.8% 1 1.0 0.0
PLACE OF PUBL. 9 0.1% 1 11.1% 66 109.4 115.3
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 1 0.0% 0 0.0% 1 1.0 0.0
ISBN/ISSN/LCCN 675 8.2% 199 29.5% 2 5.6 14.0
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,128 13.8% 303 26.9% 5 44.0 316.9
EXACT PE 151 1.8% 39 25.8% 3 113.3 971.1
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 143 1.7% 23 16.1% 6 38.5 129.7
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,411 53.8% 1,192 27.0% 9 261.1 2463.4
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 412 5.3% 90 21.8% 6 214.2 2586.0
Single 7,362 94.7% 1,955 26.6% 5 378.3 14696.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:39
Average session length (minutes:seconds) 10:43
Longest session recorded (minutes:seconds) 38:24
Average number of searches completed per session 1.3
Retrievals per search - median 8.5
Retrievals per search - average 26.5
Retrievals per search - standard deviation 46.8
Percent of searches completed with 0 results 29.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 24 20.9%
DISPLAY (excluding automatic displays) 47 40.9%
HELP 3 2.6%
EXPLAIN 6 5.2%
SET/RESET 10 8.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 18 15.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 6.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.9%
SHORT 64.8%
LONG 5.6%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 27.8%
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 44.0% 2 18.2% 16 34.6 35.5
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 3 12.0% 1 33.3% 5 4.5 3.5
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 2 8.0% 0 0.0% 9 9.0 8.5
EXACT PE 2 8.0% 0 0.0% 23 22.5 17.7
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 7 28.0% 4 57.1% 27 85.3 107.2
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 1 4.2% 0 0.0% 2 2.0 0.0
Single 23 95.8% 7 30.4% 18 39.7 52.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 13:59
Average session length (minutes:seconds) 23:48
Longest session recorded (minutes:seconds) 120:45
Average number of searches completed per session 1.7
Retrievals per search - median 2.0
Retrievals per search - average 342.4
Retrievals per search - standard deviation 3445.4
Percent of searches completed with 0 results 35.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 410 39.0%
DISPLAY (excluding automatic displays) 217 20.6%
HELP 9 0.9%
EXPLAIN 12 1.1%
SET/RESET 222 21.1%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 73 6.9%
LOGON or LOGOFF 90 8.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 17 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.5%
SHORT 61.4%
LONG 0.0%
TAGS 0.0%
FIELDS 4.2%
PERIODICALS 23.9%
COMMENTS 0.0%
Other 1.1%
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 211 43.5% 107 50.7% 5 194.2 1694.7
EXACT TITLE 2 0.4% 1 50.0% 5 5.0 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 25 5.2% 7 28.0% 9 90.4 229.6
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 30 6.2% 2 6.7% 6 132.3 411.7
EXACT PE 13 2.7% 1 7.7% 3 30.2 60.0
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 204 42.1% 55 27.0% 17 968.6 6006.2
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 75 18.3% 31 41.3% 7 124.5 365.3
Single 335 81.7% 111 33.1% 9 711.0 5037.4
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 59:29
Average session length (minutes:seconds) 59:29
Longest session recorded (minutes:seconds) 106:48
Average number of searches completed per session 1.2
Retrievals per search - median 0.0
Retrievals per search - average 139.7
Retrievals per search - standard deviation 535.4
Percent of searches completed with 0 results 86.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 15 39.5%
DISPLAY (excluding automatic displays) 1 2.6%
HELP 3 7.9%
EXPLAIN 2 5.3%
SET/RESET 12 31.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 3 7.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 100%
SHORT 0.0%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
ContentsFirst Database Statistics continued:
____________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
JOURNAL 6 40.0% 6 100% 0 0.0 0.0
EXACT JOURNAL 5 33.3% 3 60.0% 1,048 1047.5 1453.1
KEYWORD 2 13.3% 2 100% 0 0.0 0.0
SUBJECT 2 13.3% 2 100% 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 15 100% 13 86.7% 1,048 1047.5 1453.1
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 20:51
Average session length (minutes:seconds) 31:51
Longest session recorded (minutes:seconds) 105:24
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 59.1
Retrievals per search - standard deviation 314.7
Percent of searches completed with 0 results 45.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 434 40.8%
DISPLAY (excluding automatic displays) 265 24.9%
HELP 2 0.2%
EXPLAIN 5 0.5%
SET/RESET 236 22.2%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 58 5.4%
LOGON or LOGOFF 59 5.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 0.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.6%
SHORT 52.7%
LONG 1.8%
TAGS 0.0%
FIELDS 9.3%
PERIODICALS 16.5%
COMMENTS 0.0%
Other 7.2%
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 164 31.1% 54 32.9% 6 101.4 289.7
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 287 54.5% 164 57.1% 4 49.9 213.6
EXACT TITLE 1 0.2% 1 100% 0 0.0 0.0
KEYWORD 10 1.9% 2 20.0% 188 396.6 528.2
CONFERENCE 10 1.9% 4 40.0% 12 945.3 2173.9
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 0.4% 1 50.0% 6 6.0 0.0
EXACT JOURNAL 3 0.6% 1 33.3% 928 928.0 0.0
DATE 16 3.0% 6 37.5% 8 17.8 30.6
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 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 28 5.3% 4 14.3% 6 29.9 95.1
EXACT PE 6 1.1% 0 0.0% 9 25.0 37.6
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 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 88 20.3% 40 45.5% 4 8.0 16.8
Single 346 79.7% 155 44.8% 8 148.0 492.6
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 12:49
Average session length (minutes:seconds) 15:07
Longest session recorded (minutes:seconds) 27:08
Average number of searches completed per session 1.6
Retrievals per search - median 0.0
Retrievals per search - average 2.1
Retrievals per search - standard deviation 5.0
Percent of searches completed with 0 results 61.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 67 40.4%
DISPLAY (excluding automatic displays) 43 25.9%
HELP 3 1.8%
EXPLAIN 3 1.8%
SET/RESET 36 21.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.6%
LOGON or LOGOFF 12 7.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 0.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 57.1%
SHORT 21.4%
LONG 8.9%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 12.5%
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 4 6.0% 2 50.0% 18 18.0 0.0
CONFERENCE 61 91.0% 37 60.7% 2 4.4 6.1
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 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 1.5% 1 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1 1.5% 1 100% 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 67 100% 41 61.2% 2 5.4 6.9
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:09
Average session length (minutes:seconds) 9:07
Longest session recorded (minutes:seconds) 62:42
Average number of searches completed per session 2.3
Retrievals per search - median 4.0
Retrievals per search - average 98.6
Retrievals per search - standard deviation 385.7
Percent of searches completed with 0 results 26.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 258 34.4%
DISPLAY (excluding automatic displays) 204 27.2%
HELP 22 2.9%
EXPLAIN 34 4.5%
SET/RESET 40 5.3%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 1 0.1%
LOGON or LOGOFF 158 21.1%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 29 3.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.7%
SHORT 74.9%
LONG 13.1%
TAGS 3.7%
FIELDS 0.0%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 2.2%
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 78 30.0% 14 17.9% 23 142.1 335.6
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 60 23.1% 18 30.0% 13 117.3 366.5
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 17 6.5% 5 29.4% 50 663.8 1271.9
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 0.8% 0 0.0% 88 88.0 123.0
EXACT PE 1 0.4% 0 0.0% 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 102 39.2% 33 32.4% 8 52.0 209.3
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 4 1.6% 2 50.0% 214 213.5 287.8
Single 252 98.4% 66 26.2% 13 133.9 447.7
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 1:26
Average session length (minutes:seconds) 1:43
Longest session recorded (minutes:seconds) 2:52
Average number of searches completed per session 1.3
Retrievals per search - median 7.0
Retrievals per search - average 2451.9
Retrievals per search - standard deviation 3665.4
Percent of searches completed with 0 results 11.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9 30.0%
DISPLAY (excluding automatic displays) 7 23.3%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 2 6.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 10 33.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 6.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 30.0%
SHORT 70.0%
LONG 0.0%
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 3 33.3% 1 33.3% 4 4.0 4.2
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 1 11.1% 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 5 55.6% 0 0.0% 7,339 4411.6 4008.5
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 9 100% 1 11.1% 24 2758.4 3793.1
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 32.0%
2. First word of command is invalid 19.0%
3. Z39.50 host cannot process command 13.5%
4. FIND command with invalid index name 6.4%
5. Too many truncated words to process 6.1%
6. DISPLAY command contains invalid word 4.6%
7. Index invalid in current database 2.0%
8. PS command - no previous screen 1.5%
9. DISPLAY command - no FIND results 1.4%
10. 945 1.2%
11. All others 12.2%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 14.9%
2. INDEXES (WCAT DB) 10.9%
3. Unrecognized term-reminders off 10.9%
4. LOCATE (Z39.50 DBS) 7.9%
5. FIND (Z39.50 DBS) 5.9%
6. G952 4.0%
7. Unrecognized term 4.0%
8. 1242 4.0%
9. DATABASES 4.0%
10. INDEXES (MLA DB) 3.0%
11. All others 30.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.5%
2. First word of command is invalid 13.3%
3. F/BR with index invalid in current DB 8.4%
4. FIND command with invalid index name 6.0%
5. FIND command with zero results 5.4%
6. DISPLAY command - middle of >1 screen 4.8%
7. FIND command retrieves >1 book 4.2%
8. DISPLAY command-first of >1 screen 4.2%
9. FIND command retrieves 1 book 3.0%
10. DISPLAY command-complete in one screen 3.0%
11. All others 24.1%
Ten most frequent SHOW requests:
1. HISTORY 82.5%
2. GLOSSARY 7.5%
3. LIBRARY LOCATIONS 7.5%
4. SETTINGS (Z39.50 DBS) 2.5%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)