MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/31/01 through 04/06/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 120 471 591
Davis 262 58 320
Irvine 58 0 58
Los Angeles 4 87 91
Riverside 167 5 172
San Diego 72 20 92
San Francisco 19 0 19
Santa Barbara 58 26 84
Santa Cruz 20 11 31
Other - UC 1 16 17
Other-Network UC n/a 1,667 1,667
_______ ______ _____
781 2,361 3,142
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 23 230 2,538
2-4 a.m. 1 3 204
4-6 a.m. 6 8 37
6-8 a.m. 41 110 1,570
8-10 a.m. 380 1,305 13,354
10-12 a.m. 499 1,512 13,491
12-2 p.m. 562 1,914 14,433
2-4 p.m. 630 2,379 18,048
4-6 p.m. 576 2,083 15,311
6-8 p.m. 199 1,035 10,431
8-10 p.m. 121 860 9,590
10-12 p.m. 104 1,135 8,422
__________ __________ __________ _________________
Total: 3,142 12,574 107,429
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 325 1,600 1,925
Davis 919 196 1,115
Irvine 224 0 224
Los Angeles 23 217 240
Riverside 713 11 724
San Diego 177 55 232
San Francisco 78 0 78
Santa Barbara 141 53 194
Santa Cruz 54 43 97
Other - UC 0 30 30
Other-Network UC n/a 7,715 7,715
_______ ______ _____
2,654 9,920 12,574
Number of FIND commands by database
WorldCat 11,609
Art Index 39
ArticleFirst 174
ContentsFirst 5
ERIC 0
GPO 0
PapersFirst Index 215
ProceedingsFirst Index 19
SocAbstracts 0
PAIS International 0
MLA Bibliography 487
RILM Index 26
Total number of FIND commands 12,574
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,053 19,087 21,140
Davis 6,187 969 7,156
Irvine 1,489 0 1,489
Los Angeles 232 1,521 1,753
Riverside 5,738 210 5,948
San Diego 2,061 533 2,594
San Francisco 958 0 958
Santa Barbara 990 692 1,682
Santa Cruz 385 440 825
Other - UC 0 285 285
Other-Network UC n/a 63,599 63,599
_______ ______ _____
20,093 87,336 107,429
Number of Records Displayed by database
WorldCat 102,019
Art Index 192
ArticleFirst 644
ContentsFirst 53
ERIC 0
GPO 0
PapersFirst Index 528
ProceedingsFirst Index 103
SocAbstracts 0
PAIS International 0
MLA Bibliography 3,364
RILM Index 526
Total number of Records Displayed 107,429
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,722 86.6%
Art Index 24 0.8%
ArticleFirst 98 3.1%
ContentsFirst 7 0.2%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 127 4.0%
ProceedingsFirst Index 14 0.4%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 139 4.4%
RILM Index 11 0.4%
Percent of searches done in the WCAT database 92.3%
Percent of searches done in the ART database 0.3%
Percent of searches done in the JRNL database 1.4%
Percent of searches done in the JRNLT database 0.0%
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 1.7%
Percent of searches done in the PROC database 0.2%
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 3.9%
Percent of searches done in the RILM database 0.2%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.7
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) 14:32
Average session length (minutes:seconds) 23:37
Longest session recorded (minutes:seconds) 297:08
Average number of searches completed per session 4.3
Retrievals per search - median 2.0
Retrievals per search - average 347.1
Retrievals per search - standard deviation 6515.6
Percent of searches completed with 0 results 25.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10,460 33.6%
DISPLAY (excluding automatic displays) 15,113 48.5%
HELP 39 0.1%
EXPLAIN 77 0.2%
SET/RESET 1,906 6.1%
SHOW 46 0.1%
ADD ON (AND, OR, AND NOT) 1,149 3.7%
LOGON or LOGOFF 1,985 6.4%
COMMENT 0 0.0%
USE 19 0.1%
OTHER 368 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.0%
SHORT 37.0%
LONG 6.5%
TAGS 0.1%
FIELDS 10.1%
PERIODICALS 27.3%
COMMENTS 0.0%
Other 10.1%
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 937 8.5% 248 26.5% 4 19.2 45.4
SUBJECT 380 3.4% 36 9.5% 71 2966.9 22287.7
EXACT SUBJECT 24 0.2% 12 50.0% 26 1758.0 4145.5
SERIES 131 1.2% 41 31.3% 8 300.7 1931.7
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 27 0.2% 0 0.0% 16 88.7 191.7
FORM 111 1.0% 15 13.5% 11 128.0 694.7
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 12 0.1% 2 16.7% 59 3916.8 11914.4
ACCESSION NUMBER 160 1.5% 10 6.3% 1 1.0 0.0
PLACE OF PUBL. 9 0.1% 3 33.3% 35 1958.5 4603.5
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 1 0.0% 1 100% 0 0.0 0.0
ISBN/ISSN/LCCN 754 6.8% 180 23.9% 1 6.6 69.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2,842 25.8% 924 32.5% 5 91.4 997.8
EXACT PE 197 1.8% 52 26.4% 7 44.0 161.6
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 251 2.3% 28 11.2% 8 81.0 590.8
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,180 47.0% 1,281 24.7% 9 548.5 7131.0
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 510 4.9% 80 15.7% 7 79.4 540.4
Single 9,942 95.1% 2,669 26.8% 6 470.3 7182.2
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:14
Average session length (minutes:seconds) 5:40
Longest session recorded (minutes:seconds) 18:28
Average number of searches completed per session 1.6
Retrievals per search - median 2.0
Retrievals per search - average 872.5
Retrievals per search - standard deviation 3521.0
Percent of searches completed with 0 results 38.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 38 26.9%
DISPLAY (excluding automatic displays) 42 29.8%
HELP 8 5.7%
EXPLAIN 2 1.4%
SET/RESET 11 7.8%
SHOW 3 2.1%
ADD ON (AND, OR, AND NOT) 1 0.7%
LOGON or LOGOFF 26 18.4%
COMMENT 0 0.0%
USE 1 0.7%
OTHER 9 6.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.1%
SHORT 61.2%
LONG 2.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 30.6%
COMMENTS 0.0%
Other 2.0%
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 9 23.7% 5 55.6% 9 10.5 9.2
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 13 34.2% 5 38.5% 7 14.8 21.1
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 6 15.8% 2 33.3% 3 7.3 9.9
EXACT PE 1 2.6% 0 0.0% 7 7.0 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 9 23.7% 3 33.3% 1,173 5637.8 7874.9
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 38 100% 15 39.5% 7 1479.3 4525.0
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:53
Average session length (minutes:seconds) 18:33
Longest session recorded (minutes:seconds) 138:31
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 52.2
Retrievals per search - standard deviation 295.3
Percent of searches completed with 0 results 38.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 164 41.9%
DISPLAY (excluding automatic displays) 80 20.5%
HELP 5 1.3%
EXPLAIN 3 0.8%
SET/RESET 84 21.5%
SHOW 2 0.5%
ADD ON (AND, OR, AND NOT) 10 2.6%
LOGON or LOGOFF 35 9.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 2.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 17.5%
SHORT 60.8%
LONG 0.8%
TAGS 0.0%
FIELDS 1.7%
PERIODICALS 19.2%
COMMENTS 0.0%
Other 0.0%
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 82 42.9% 42 51.2% 5 96.0 363.1
EXACT TITLE 4 2.1% 3 75.0% 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 7 3.7% 2 28.6% 6 7.2 6.0
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 13 6.8% 3 23.1% 7 9.9 13.6
EXACT PE 1 0.5% 0 0.0% 83 83.0 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 84 44.0% 26 30.9% 7 82.2 408.2
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 27 16.5% 12 44.4% 4 10.4 16.3
Single 137 83.5% 52 38.0% 7 100.1 416.1
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 0:51
Average session length (minutes:seconds) 0:51
Longest session recorded (minutes:seconds) 0:51
Average number of searches completed per session 0.7
Retrievals per search - median 0.0
Retrievals per search - average 3.8
Retrievals per search - standard deviation 8.5
Percent of searches completed with 0 results 80.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 5 25.0%
DISPLAY (excluding automatic displays) 6 30.0%
HELP 1 5.0%
EXPLAIN 0 0.0%
SET/RESET 6 30.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 2 10.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 57.1%
SHORT 0.0%
LONG 42.9%
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 40.0% 2 100% 0 0.0 0.0
EXACT JOURNAL 3 60.0% 2 66.7% 19 19.0 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 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 5 100% 4 80.0% 19 19.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 12:14
Average session length (minutes:seconds) 25:00
Longest session recorded (minutes:seconds) 109:08
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 182.5
Retrievals per search - standard deviation 1729.3
Percent of searches completed with 0 results 47.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 195 36.9%
DISPLAY (excluding automatic displays) 149 28.2%
HELP 7 1.3%
EXPLAIN 2 0.4%
SET/RESET 116 22.0%
SHOW 1 0.2%
ADD ON (AND, OR, AND NOT) 20 3.8%
LOGON or LOGOFF 30 5.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 8 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 17.2%
SHORT 54.4%
LONG 3.3%
TAGS 0.0%
FIELDS 15.0%
PERIODICALS 3.3%
COMMENTS 0.0%
Other 6.7%
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 94 39.8% 34 36.2% 8 559.3 3238.8
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 112 47.5% 61 54.5% 3 56.6 247.6
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 0.8% 0 0.0% 37 36.5 36.1
CONFERENCE 3 1.3% 0 0.0% 12 837.7 1430.1
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 1 0.4% 0 0.0% 2 2.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 3 1.3% 0 0.0% 4 78.7 131.9
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
DATE 8 3.4% 3 37.5% 2 4.8 4.8
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.4% 1 100% 0 0.0 0.0
ISBN 1 0.4% 0 0.0% 72 72.0 0.0
PERIODICAL 10 4.2% 7 70.0% 1 1.0 0.0
EXACT PE 1 0.4% 0 0.0% 2 2.0 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 41 21.0% 19 46.3% 2 7.7 18.2
Single 154 79.0% 68 44.2% 6 453.8 2721.2
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 3:48
Average session length (minutes:seconds) 6:22
Longest session recorded (minutes:seconds) 16:32
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 17.0
Retrievals per search - standard deviation 38.6
Percent of searches completed with 0 results 42.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 19 22.9%
DISPLAY (excluding automatic displays) 18 21.7%
HELP 14 16.9%
EXPLAIN 6 7.2%
SET/RESET 8 9.6%
SHOW 1 1.2%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 13 15.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 4.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 57.1%
SHORT 14.3%
LONG 9.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 9.5%
COMMENTS 0.0%
Other 9.5%
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 2 10.5% 2 100% 0 0.0 0.0
CONFERENCE 7 36.8% 2 28.6% 3 7.0 7.3
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 0 0.0% 0 0.0% 0 0.0 0.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 1 5.3% 0 0.0% 2 2.0 0.0
SUBJECT 8 42.1% 4 50.0% 69 66.3 68.0
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 1 5.3% 0 0.0% 21 21.0 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 19 100% 8 42.1% 13 29.4 47.8
2.7 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:28
Average session length (minutes:seconds) 8:21
Longest session recorded (minutes:seconds) 43:24
Average number of searches completed per session 3.5
Retrievals per search - median 3.0
Retrievals per search - average 153.9
Retrievals per search - standard deviation 1933.0
Percent of searches completed with 0 results 31.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 478 42.2%
DISPLAY (excluding automatic displays) 289 25.5%
HELP 26 2.3%
EXPLAIN 38 3.4%
SET/RESET 51 4.5%
SHOW 6 0.5%
ADD ON (AND, OR, AND NOT) 9 0.8%
LOGON or LOGOFF 193 17.0%
COMMENT 0 0.0%
USE 1 0.1%
OTHER 41 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.3%
SHORT 85.8%
LONG 6.1%
TAGS 0.0%
FIELDS 1.5%
PERIODICALS 1.3%
COMMENTS 0.0%
Other 1.0%
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 139 27.9% 55 39.6% 7 115.3 363.3
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 158 31.7% 56 35.4% 12 132.1 385.7
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 24 4.8% 5 20.8% 13 2330.7 9675.3
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 4 0.8% 0 0.0% 11 9.8 7.3
EXACT PE 2 0.4% 1 50.0% 109 109.0 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 171 34.3% 41 24.0% 11 57.1 219.1
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 21 4.4% 9 42.9% 6 19.7 31.7
Single 456 95.6% 140 30.7% 11 235.9 2394.5
2.8 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 6:52
Average session length (minutes:seconds) 7:37
Longest session recorded (minutes:seconds) 13:27
Average number of searches completed per session 2.4
Retrievals per search - median 5.0
Retrievals per search - average 24.8
Retrievals per search - standard deviation 41.1
Percent of searches completed with 0 results 38.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 26 34.2%
DISPLAY (excluding automatic displays) 25 32.9%
HELP 1 1.3%
EXPLAIN 2 2.6%
SET/RESET 3 3.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 15 19.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 25.8%
SHORT 61.3%
LONG 6.5%
TAGS 6.5%
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 10 37.0% 4 40.0% 38 63.2 66.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 11 40.7% 3 27.3% 12 20.9 23.8
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 2 7.4% 1 50.0% 41 41.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 3 11.1% 1 33.3% 31 30.5 40.3
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 1 3.7% 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 3.8% 0 0.0% 2 2.0 0.0
Single 25 96.2% 10 40.0% 29 42.9 46.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.2%
Ten most frequent errors:
1. NS command - no next screen 34.4%
2. First word of command is invalid 18.1%
3. Z39.50 host cannot process command 11.3%
4. FIND command with invalid index name 6.3%
5. Too many truncated words to process 5.4%
6. DISPLAY command contains invalid word 4.8%
7. Search term missing from search command 1.9%
8. PS command - no previous screen 1.4%
9. Index invalid in current database 1.4%
10. DISPLAY command - no FIND results 1.2%
11. All others 13.7%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 18.5%
2. INDEXES (WCAT DB) 10.0%
3. GUIDE: Z39.50 non-A&I DBS w/o truncation 10.0%
4. Unrecognized term-reminders off 6.2%
5. LOCATE (Z39.50 DBS) 3.8%
6. G496 3.8%
7. G985 3.8%
8. INDEXES (PROC DB) 3.1%
9. FIND (Z39.50 DBS) 3.1%
10. GUIDE (Z39.50 A&I DBS w/o truncation) 3.1%
11. All others 34.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.1%
2. First word of command is invalid 14.7%
3. DISPLAY command-first of >1 screen 8.7%
4. DISPLAY command - middle of >1 screen 8.7%
5. DISPLAY command-complete in one screen 8.2%
6. FIND command with zero results 4.8%
7. F/BR with index invalid in current DB 4.3%
8. FIND command with invalid index name 3.5%
9. FIND command retrieves >1 book 3.0%
10. 278 2.6%
11. All others 19.5%
Ten most frequent SHOW requests:
1. HISTORY 66.1%
2. SEARCH 8.5%
3. GLOSSARY 6.8%
4. Z39.50 NEWS 3.4%
5. LIBRARY SETTINGS 3.4%
6. LOCAL INFORMATION 3.4%
7. G332 1.7%
8. SETTINGS (Z39.50 DBS) 1.7%
9. UCB LIBRARY HOURS 1.7%
10. SYSTEM NEWS 1.7%
11. All others 1.7%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)