MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 05/19/01 through 05/25/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 88 451 539
Davis 392 66 458
Irvine 167 0 167
Los Angeles 5 151 156
Riverside 170 7 177
San Diego 76 22 98
San Francisco 50 0 50
Santa Barbara 35 10 45
Santa Cruz 64 3 67
Other - UC 15 9 24
Other-Network UC n/a 1,991 1,991
_______ ______ _____
1,062 2,710 3,772
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 11 137 708
2-4 a.m. 2 5 2
4-6 a.m. 64 102 422
6-8 a.m. 147 261 2,461
8-10 a.m. 460 1,260 9,111
10-12 a.m. 703 1,717 14,829
12-2 p.m. 542 1,299 11,297
2-4 p.m. 679 1,775 21,138
4-6 p.m. 679 1,852 17,269
6-8 p.m. 196 547 5,199
8-10 p.m. 122 444 3,455
10-12 p.m. 167 779 7,190
__________ __________ __________ _________________
Total: 3,772 10,178 93,081
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 133 1,115 1,248
Davis 1,070 136 1,206
Irvine 717 0 717
Los Angeles 8 355 363
Riverside 578 17 595
San Diego 146 41 187
San Francisco 127 0 127
Santa Barbara 57 18 75
Santa Cruz 112 8 120
Other - UC 12 22 34
Other-Network UC n/a 5,506 5,506
_______ ______ _____
2,960 7,218 10,178
Number of FIND commands by database
WorldCat 8,687
Art Index 58
ArticleFirst 355
ContentsFirst 14
ERIC 0
GPO 0
PapersFirst Index 372
ProceedingsFirst Index 55
SocAbstracts 0
PAIS International 0
MLA Bibliography 608
RILM Index 29
Total number of FIND commands 10,178
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,024 10,420 11,444
Davis 9,347 1,311 10,658
Irvine 4,719 0 4,719
Los Angeles 63 3,293 3,356
Riverside 12,140 209 12,349
San Diego 1,081 446 1,527
San Francisco 1,480 0 1,480
Santa Barbara 379 52 431
Santa Cruz 490 233 723
Other - UC 14 384 398
Other-Network UC n/a 45,996 45,996
_______ ______ _____
30,737 62,344 93,081
Number of Records Displayed by database
WorldCat 84,987
Art Index 601
ArticleFirst 1,611
ContentsFirst 133
ERIC 0
GPO 0
PapersFirst Index 1,128
ProceedingsFirst Index 342
SocAbstracts 0
PAIS International 0
MLA Bibliography 3,938
RILM Index 341
Total number of Records Displayed 93,081
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 3,059 81.1%
Art Index 16 0.4%
ArticleFirst 239 6.3%
ContentsFirst 21 0.6%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 217 5.8%
ProceedingsFirst Index 37 1.0%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 166 4.4%
RILM Index 17 0.5%
Percent of searches done in the WCAT database 85.4%
Percent of searches done in the ART database 0.6%
Percent of searches done in the JRNL database 3.5%
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 3.7%
Percent of searches done in the PROC database 0.5%
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 6.0%
Percent of searches done in the RILM database 0.3%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 3.9
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) 14:04
Average session length (minutes:seconds) 20:20
Longest session recorded (minutes:seconds) 343:04
Average number of searches completed per session 2.8
Retrievals per search - median 3.0
Retrievals per search - average 445.3
Retrievals per search - standard deviation 8324.1
Percent of searches completed with 0 results 24.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,975 32.9%
DISPLAY (excluding automatic displays) 10,697 44.1%
HELP 57 0.2%
EXPLAIN 79 0.3%
SET/RESET 2,138 8.8%
SHOW 67 0.3%
ADD ON (AND, OR, AND NOT) 712 2.9%
LOGON or LOGOFF 2,092 8.6%
COMMENT 0 0.0%
USE 18 0.1%
OTHER 437 1.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.0%
SHORT 38.5%
LONG 7.6%
TAGS 0.0%
FIELDS 8.0%
PERIODICALS 25.3%
COMMENTS 0.0%
Other 9.6%
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 1,300 15.8% 350 26.9% 3 24.2 92.8
SUBJECT 117 1.4% 19 16.2% 98 6084.2 34129.9
EXACT SUBJECT 5 0.1% 2 40.0% 35 143.7 218.3
SERIES 202 2.5% 65 32.2% 5 182.8 701.6
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 8 0.1% 5 62.5% 15 201.3 334.9
FORM 128 1.6% 10 7.8% 10 59.8 296.4
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 1 0.0% 0 0.0% 3 3.0 0.0
ACCESSION NUMBER 45 0.5% 1 2.2% 1 1.0 0.0
PLACE OF PUBL. 8 0.1% 1 12.5% 69 68628.0 172370
UNIFORM TITLE 1 0.0% 0 0.0% 13 13.0 0.0
GOV DOC NUM 0 0.0% 0 0.0% 0 0.0 0.0
ISBN/ISSN/LCCN 149 1.8% 58 38.9% 1 3.9 7.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,646 20.0% 477 29.0% 5 72.3 322.1
EXACT PE 270 3.3% 58 21.5% 5 22.6 68.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 23 0.3% 2 8.7% 4 38.6 86.3
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,315 52.5% 1,026 23.8% 10 629.9 7373.7
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 238 3.0% 43 18.1% 6 46.9 236.6
Single 7,735 97.0% 1,986 25.7% 7 570.0 9384.9
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:02
Average session length (minutes:seconds) 9:43
Longest session recorded (minutes:seconds) 27:32
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 94.1
Retrievals per search - standard deviation 293.9
Percent of searches completed with 0 results 38.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 58 35.4%
DISPLAY (excluding automatic displays) 38 23.2%
HELP 12 7.3%
EXPLAIN 13 7.9%
SET/RESET 3 1.8%
SHOW 5 3.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 27 16.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.9%
SHORT 92.3%
LONG 1.9%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 3.8%
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 7 12.3% 2 28.6% 14 10.0 7.9
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 35 61.4% 12 34.3% 43 223.2 436.3
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 15 26.3% 8 53.3% 23 25.9 22.0
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 57 100% 22 38.6% 18 153.3 364.6
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 14:08
Average session length (minutes:seconds) 18:40
Longest session recorded (minutes:seconds) 158:31
Average number of searches completed per session 1.5
Retrievals per search - median 2.0
Retrievals per search - average 556.4
Retrievals per search - standard deviation 6223.3
Percent of searches completed with 0 results 34.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 323 34.8%
DISPLAY (excluding automatic displays) 221 23.8%
HELP 16 1.7%
EXPLAIN 23 2.5%
SET/RESET 182 19.6%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 32 3.5%
LOGON or LOGOFF 100 10.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 28 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.9%
SHORT 75.7%
LONG 0.7%
TAGS 0.0%
FIELDS 2.5%
PERIODICALS 15.7%
COMMENTS 0.0%
Other 1.4%
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 245 70.4% 95 38.8% 8 396.3 3310.8
EXACT TITLE 3 0.9% 2 66.7% 1 1.0 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 7.5% 6 23.1% 89 5967.9 24301.2
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 18 5.2% 2 11.1% 7 13.1 15.8
EXACT PE 6 1.7% 1 16.7% 25 539.8 721.4
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 50 14.4% 13 26.0% 28 439.1 2243.9
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 26 8.1% 9 34.6% 28 76.2 122.4
Single 296 91.9% 101 34.1% 10 1001.9 8368.1
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 7:41
Average session length (minutes:seconds) 11:34
Longest session recorded (minutes:seconds) 26:36
Average number of searches completed per session 0.7
Retrievals per search - median 12.0
Retrievals per search - average 109.5
Retrievals per search - standard deviation 193.8
Percent of searches completed with 0 results 28.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 12 19.7%
DISPLAY (excluding automatic displays) 13 21.3%
HELP 5 8.2%
EXPLAIN 5 8.2%
SET/RESET 19 31.1%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 3.3%
LOGON or LOGOFF 5 8.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 71.4%
SHORT 0.0%
LONG 21.4%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 7.1%
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 11 84.6% 3 27.3% 22 111.0 151.9
EXACT JOURNAL 1 7.7% 0 0.0% 629 629.0 0.0
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
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 1 7.7% 1 100% 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 1 8.3% 1 100% 0 0.0 0.0
Single 11 91.7% 2 18.2% 31 168.6 223.6
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 16:12
Average session length (minutes:seconds) 20:12
Longest session recorded (minutes:seconds) 69:38
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 96.1
Retrievals per search - standard deviation 736.9
Percent of searches completed with 0 results 46.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 342 39.1%
DISPLAY (excluding automatic displays) 219 25.0%
HELP 4 0.5%
EXPLAIN 15 1.7%
SET/RESET 185 21.1%
SHOW 6 0.7%
ADD ON (AND, OR, AND NOT) 30 3.4%
LOGON or LOGOFF 60 6.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 14 1.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.6%
SHORT 58.0%
LONG 3.0%
TAGS 0.0%
FIELDS 14.1%
PERIODICALS 7.4%
COMMENTS 0.0%
Other 11.9%
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 167 40.6% 60 35.9% 11 140.3 412.9
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 203 49.4% 112 55.2% 2 189.6 1404.7
EXACT TITLE 6 1.5% 6 100% 0 0.0 0.0
KEYWORD 3 0.7% 3 100% 0 0.0 0.0
CONFERENCE 13 3.2% 6 46.2% 74 520.0 574.7
EXACT CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE PLACE 1 0.2% 1 100% 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 0.5% 1 50.0% 32 32.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 2 0.5% 1 50.0% 3 3.0 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 12 2.9% 2 16.7% 4 4.5 3.8
EXACT PE 2 0.5% 0 0.0% 2 1.5 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 69 20.2% 39 56.5% 2 8.7 19.7
Single 273 79.8% 114 41.8% 12 223.0 1116.6
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 13:32
Average session length (minutes:seconds) 13:25
Longest session recorded (minutes:seconds) 22:30
Average number of searches completed per session 1.5
Retrievals per search - median 3.0
Retrievals per search - average 13.2
Retrievals per search - standard deviation 31.9
Percent of searches completed with 0 results 32.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 52 34.4%
DISPLAY (excluding automatic displays) 40 26.5%
HELP 2 1.3%
EXPLAIN 9 6.0%
SET/RESET 27 17.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 2.0%
LOGON or LOGOFF 18 11.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 64.1%
SHORT 5.7%
LONG 7.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 22.6%
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 7 13.2% 4 57.1% 17 53.7 77.8
CONFERENCE 45 84.9% 13 28.9% 6 17.3 33.2
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 1 1.9% 1 100% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 0 0.0% 0 0.0% 0 0.0 0.0
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 1 1.9% 1 100% 0 0.0 0.0
Single 51 98.1% 16 31.4% 6 20.4 38.3
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:15
Average session length (minutes:seconds) 10:24
Longest session recorded (minutes:seconds) 101:52
Average number of searches completed per session 3.7
Retrievals per search - median 2.0
Retrievals per search - average 2244.4
Retrievals per search - standard deviation 36848
Percent of searches completed with 0 results 31.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 590 41.9%
DISPLAY (excluding automatic displays) 442 31.4%
HELP 31 2.2%
EXPLAIN 22 1.6%
SET/RESET 84 6.0%
SHOW 5 0.4%
ADD ON (AND, OR, AND NOT) 18 1.3%
LOGON or LOGOFF 170 12.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 45 3.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.4%
SHORT 73.5%
LONG 16.0%
TAGS 0.0%
FIELDS 2.4%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 1.5%
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 87 14.2% 30 34.5% 26 167.2 332.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 202 32.9% 70 34.7% 4 1084.1 11405.6
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 84 13.7% 16 19.0% 11 72.4 142.6
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 0.3% 1 50.0% 3 3.0 0.0
EXACT PE 14 2.3% 5 35.7% 5 4.9 3.6
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 224 36.5% 75 33.5% 11 8979.4 74215.1
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 23 3.9% 9 39.1% 5 9366.2 35008.9
Single 567 96.1% 179 31.6% 8 3178.5 45640.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 3:35
Average session length (minutes:seconds) 5:37
Longest session recorded (minutes:seconds) 16:13
Average number of searches completed per session 1.7
Retrievals per search - median 22.0
Retrievals per search - average 462.1
Retrievals per search - standard deviation 1627.9
Percent of searches completed with 0 results 6.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 23 23.5%
DISPLAY (excluding automatic displays) 28 28.6%
HELP 4 4.1%
EXPLAIN 1 1.0%
SET/RESET 4 4.1%
SHOW 2 2.0%
ADD ON (AND, OR, AND NOT) 6 6.1%
LOGON or LOGOFF 26 26.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 4.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 31.4%
SHORT 48.6%
LONG 20.0%
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 9 36.0% 2 22.2% 22 51.4 69.7
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 1 4.0% 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 12 48.0% 0 0.0% 41 1067.9 2461.5
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 8.0% 0 0.0% 15 15.0 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 1 4.0% 0 0.0% 22 22.0 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 2 8.7% 0 0.0% 12 11.5 14.8
Single 21 91.3% 2 9.5% 25 693.8 1989.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 12.6%
Ten most frequent errors:
1. 945 41.0%
2. NS command - no next screen 19.6%
3. First word of command is invalid 9.7%
4. Z39.50 host cannot process command 8.9%
5. FIND command with invalid index name 3.2%
6. Too many truncated words to process 2.9%
7. DISPLAY command contains invalid word 2.5%
8. Max. # of ports to a Z39 db are in use 1.6%
9. PS command - no previous screen 1.1%
10. Index invalid in current database 1.1%
11. All others 8.4%
Ten most frequent EXPLAIN requests:
1. INDEXES (WCAT DB) 17.4%
2. LOCATE (Z39.50 DBS) 7.8%
3. G508 7.8%
4. FIND (Z39.50 DBS) 7.8%
5. GUIDE: Z39.50 non-A&I DBS w/o truncation 7.8%
6. INDEXES (PROC DB) 4.8%
7. COMMANDS (Z39.50 DBS) 4.8%
8. INDEXES (JRNL DB) 4.2%
9. Unrecognized term 4.2%
10. GUIDE (ART DB) 3.6%
11. All others 29.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.8%
2. First word of command is invalid 11.7%
3. 945 10.7%
4. FIND command with zero results 6.4%
5. F/BR with index invalid in current DB 5.7%
6. DISPLAY command-first of >1 screen 4.7%
7. DISPLAY command - middle of >1 screen 4.7%
8. FIND command with invalid index name 4.4%
9. DISPLAY command - last of >1 screen 3.4%
10. FIND command retrieves >1 book 2.7%
11. All others 20.8%
Ten most frequent SHOW requests:
1. HISTORY 80.5%
2. SEARCH 10.3%
3. Z39.50 NEWS 2.3%
4. LANGUAGE CODES 2.3%
5. GLOSSARY 1.1%
11. All others 3.4%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)