MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/02/00 through 12/08/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 188 484 672
Davis 292 104 396
Irvine 95 0 95
Los Angeles 35 172 207
Riverside 151 8 159
San Diego 60 41 101
San Francisco 23 0 23
Santa Barbara 84 20 104
Santa Cruz 36 15 51
Other - UC 0 24 24
Other-Network UC n/a 1,400 1,400
_______ ______ _____
964 2,268 3,232
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 16 368
2-4 a.m. 3 6 63
4-6 a.m. 4 7 37
6-8 a.m. 26 119 763
8-10 a.m. 377 1,291 9,056
10-12 a.m. 680 2,622 17,732
12-2 p.m. 547 1,753 12,017
2-4 p.m. 670 2,227 18,446
4-6 p.m. 550 2,162 17,725
6-8 p.m. 246 1,182 14,053
8-10 p.m. 101 627 7,182
10-12 p.m. 22 86 851
__________ __________ __________ _________________
Total: 3,232 12,098 98,293
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 660 1,681 2,341
Davis 824 206 1,030
Irvine 578 0 578
Los Angeles 174 565 739
Riverside 451 16 467
San Diego 296 80 376
San Francisco 81 0 81
Santa Barbara 316 64 380
Santa Cruz 92 32 124
Other - UC 0 56 56
Other-Network UC n/a 5,926 5,926
_______ ______ _____
3,472 8,626 12,098
Number of FIND commands by database
WorldCat 10,637
Art Index 126
ArticleFirst 102
ContentsFirst 9
ERIC 0
GPO 0
PapersFirst Index 195
ProceedingsFirst Index 27
SocAbstracts 0
PAIS International 30
MLA Bibliography 911
RILM Index 61
Total number of FIND commands 12,098
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3,737 15,447 19,184
Davis 6,025 2,095 8,120
Irvine 3,811 0 3,811
Los Angeles 1,360 7,591 8,951
Riverside 3,459 173 3,632
San Diego 1,076 1,233 2,309
San Francisco 876 0 876
Santa Barbara 2,351 405 2,756
Santa Cruz 565 227 792
Other - UC 0 346 346
Other-Network UC n/a 47,516 47,516
_______ ______ _____
23,260 75,033 98,293
Number of Records Displayed by database
WorldCat 87,015
Art Index 2,028
ArticleFirst 566
ContentsFirst 103
ERIC 0
GPO 0
PapersFirst Index 404
ProceedingsFirst Index 218
SocAbstracts 0
PAIS International 628
MLA Bibliography 6,734
RILM Index 597
Total number of Records Displayed 98,293
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,599 80.4%
Art Index 43 1.3%
ArticleFirst 87 2.7%
ContentsFirst 5 0.2%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 139 4.3%
ProceedingsFirst Index 31 1.0%
SocAbstracts 0 0.0%
PAIS International 14 0.4%
MLA Bibliography 288 8.9%
RILM Index 26 0.8%
Percent of searches done in the WCAT database 87.9%
Percent of searches done in the ART database 1.0%
Percent of searches done in the JRNL database 0.8%
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 1.6%
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 0.2%
Percent of searches done in the MLA database 7.5%
Percent of searches done in the RILM database 0.5%
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 1.8
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) 13:31
Average session length (minutes:seconds) 20:30
Longest session recorded (minutes:seconds) 302:30
Average number of searches completed per session 4.1
Retrievals per search - median 2.0
Retrievals per search - average 278.6
Retrievals per search - standard deviation 7147.4
Percent of searches completed with 0 results 25.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9,575 34.0%
DISPLAY (excluding automatic displays) 13,211 46.9%
HELP 43 0.2%
EXPLAIN 72 0.3%
SET/RESET 1,742 6.2%
SHOW 44 0.2%
ADD ON (AND, OR, AND NOT) 1,062 3.8%
LOGON or LOGOFF 2,030 7.2%
COMMENT 0 0.0%
USE 1 0.0%
OTHER 372 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.3%
SHORT 39.9%
LONG 7.4%
TAGS 0.1%
FIELDS 7.3%
PERIODICALS 23.3%
COMMENTS 0.0%
Other 10.8%
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 1,193 11.5% 326 27.3% 3 24.6 71.4
SUBJECT 222 2.1% 35 15.8% 73 2569.3 9678.9
EXACT SUBJECT 12 0.1% 6 50.0% 311 546.5 799.1
SERIES 135 1.3% 50 37.0% 8 232.9 918.1
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 2 0.0% 0 0.0% 41 40.5 55.9
FORM 205 2.0% 42 20.5% 10 114.6 487.2
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 18 0.2% 9 50.0% 21 257.3 489.8
ACCESSION NUMBER 182 1.8% 4 2.2% 1 1.0 0.0
PLACE OF PUBL. 12 0.1% 3 25.0% 31 4735.4 10021.6
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 10 0.1% 7 70.0% 1 1.0 0.0
ISBN/ISSN/LCCN 613 5.9% 176 28.7% 1 5.8 29.2
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,995 19.3% 614 30.8% 4 41.0 230.6
EXACT PE 121 1.2% 21 17.4% 5 80.9 597.9
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 276 2.7% 57 20.6% 6 54.6 193.5
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 5,337 51.6% 1,322 24.8% 10 530.5 11397.5
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 740 7.7% 155 20.9% 7 62.9 292.8
Single 8,826 92.3% 2,355 26.7% 6 421.0 9146.1
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 5:27
Average session length (minutes:seconds) 15:20
Longest session recorded (minutes:seconds) 162:29
Average number of searches completed per session 2.9
Retrievals per search - median 4.0
Retrievals per search - average 542.3
Retrievals per search - standard deviation 4653.9
Percent of searches completed with 0 results 37.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 121 20.4%
DISPLAY (excluding automatic displays) 341 57.5%
HELP 16 2.7%
EXPLAIN 20 3.4%
SET/RESET 13 2.2%
SHOW 4 0.7%
ADD ON (AND, OR, AND NOT) 5 0.8%
LOGON or LOGOFF 63 10.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 10 1.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.3%
SHORT 94.6%
LONG 3.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 1.6%
COMMENTS 0.0%
Other 0.5%
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 22 18.0% 5 22.7% 5 10.1 13.1
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 22 18.0% 7 31.8% 36 3492.7 13204.9
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 5 4.1% 2 40.0% 54 52.3 45.5
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 73 59.8% 31 42.5% 38 362.1 1672.2
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 0.8% 0 0.0% 65 65.0 0.0
Single 120 99.2% 45 37.5% 15 903.9 6021.4
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 13:07
Average session length (minutes:seconds) 19:20
Longest session recorded (minutes:seconds) 105:08
Average number of searches completed per session 1.2
Retrievals per search - median 1.0
Retrievals per search - average 82.1
Retrievals per search - standard deviation 415.1
Percent of searches completed with 0 results 36.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 100 30.9%
DISPLAY (excluding automatic displays) 65 20.1%
HELP 19 5.9%
EXPLAIN 22 6.8%
SET/RESET 77 23.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 0.6%
LOGON or LOGOFF 31 9.6%
COMMENT 0 0.0%
USE 1 0.3%
OTHER 7 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 24.1%
SHORT 41.4%
LONG 2.3%
TAGS 0.0%
FIELDS 4.6%
PERIODICALS 27.6%
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 70 68.0% 28 40.0% 12 158.0 620.9
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 11 10.7% 2 18.2% 22 181.2 342.5
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 17.5% 6 33.3% 1 7.1 12.3
EXACT PE 1 1.0% 0 0.0% 24 24.0 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 3 2.9% 0 0.0% 30 29.3 16.0
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 3 3.0% 0 0.0% 30 29.3 16.0
Single 97 97.0% 36 37.1% 8 135.9 531.7
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 6:02
Average session length (minutes:seconds) 5:59
Longest session recorded (minutes:seconds) 9:37
Average number of searches completed per session 1.8
Retrievals per search - median 0.0
Retrievals per search - average 80.4
Retrievals per search - standard deviation 189.4
Percent of searches completed with 0 results 77.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 9 30.0%
DISPLAY (excluding automatic displays) 7 23.3%
HELP 2 6.7%
EXPLAIN 4 13.3%
SET/RESET 1 3.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 7 23.3%
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 4 44.4% 3 75.0% 566 566.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 4 44.4% 3 75.0% 158 158.0 0.0
SUBJECT 1 11.1% 1 100% 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 9 100% 7 77.8% 362 362.0 288.5
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 14:02
Average session length (minutes:seconds) 29:46
Longest session recorded (minutes:seconds) 196:40
Average number of searches completed per session 1.4
Retrievals per search - median 0.0
Retrievals per search - average 61.0
Retrievals per search - standard deviation 385.7
Percent of searches completed with 0 results 52.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 176 40.2%
DISPLAY (excluding automatic displays) 84 19.2%
HELP 0 0.0%
EXPLAIN 2 0.5%
SET/RESET 121 27.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 19 4.3%
LOGON or LOGOFF 31 7.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 1.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 14.5%
SHORT 54.7%
LONG 3.4%
TAGS 0.0%
FIELDS 11.1%
PERIODICALS 3.4%
COMMENTS 0.0%
Other 12.8%
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 74 34.7% 32 43.2% 7 157.8 689.9
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 123 57.7% 78 63.4% 2 31.1 147.6
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 0.9% 0 0.0% 295 294.5 0.7
CONFERENCE 1 0.5% 0 0.0% 1 1.0 0.0
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 1 0.5% 0 0.0% 1 1.0 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 0.5% 1 100% 0 0.0 0.0
EXACT JOURNAL 1 0.5% 0 0.0% 2,765 2765.0 0.0
DATE 3 1.4% 1 33.3% 15 15.0 12.7
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 7 3.3% 4 57.1% 1 1.7 1.2
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 37 21.0% 22 59.5% 1 4.1 6.0
Single 139 79.0% 72 51.8% 6 168.6 645.2
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 10:12
Average session length (minutes:seconds) 37:44
Longest session recorded (minutes:seconds) 125:38
Average number of searches completed per session 0.9
Retrievals per search - median 2.0
Retrievals per search - average 6.5
Retrievals per search - standard deviation 17.3
Percent of searches completed with 0 results 40.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 26 19.8%
DISPLAY (excluding automatic displays) 58 44.3%
HELP 2 1.5%
EXPLAIN 7 5.3%
SET/RESET 27 20.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.8%
LOGON or LOGOFF 8 6.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 29.0%
SHORT 14.5%
LONG 8.1%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 37.1%
COMMENTS 0.0%
Other 11.3%
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 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 19 70.4% 8 42.1% 3 14.6 25.5
CONFERENCE PLACE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE DATE 1 3.7% 0 0.0% 2 2.0 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 7 25.9% 2 28.6% 3 3.0 2.1
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 3.8% 0 0.0% 2 2.0 0.0
Single 25 96.2% 10 40.0% 3 11.6 22.2
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 3:18
Average session length (minutes:seconds) 10:49
Longest session recorded (minutes:seconds) 30:38
Average number of searches completed per session 2.1
Retrievals per search - median 1.0
Retrievals per search - average 310.2
Retrievals per search - standard deviation 1179.9
Percent of searches completed with 0 results 46.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 29 21.5%
DISPLAY (excluding automatic displays) 70 51.9%
HELP 1 0.7%
EXPLAIN 3 2.2%
SET/RESET 2 1.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 1 0.7%
LOGON or LOGOFF 26 19.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.3%
SHORT 97.3%
LONG 0.0%
TAGS 0.0%
FIELDS 1.3%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
PAIS International 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 2 6.3% 2 100% 0 0.0 0.0
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
CORPORATE 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 11 34.4% 7 63.6% 17 45.0 68.9
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 10 31.3% 1 10.0% 30 209.4 236.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 8 25.0% 5 62.5% 500 2413.7 3529.8
EXACT SUBJECT 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
ACCESSION NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN/ISBN/LCCN 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 3.1% 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 3 10.3% 3 100% 0 0.0 0.0
Single 26 89.7% 10 38.5% 89 581.6 1588.4
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:40
Average session length (minutes:seconds) 11:22
Longest session recorded (minutes:seconds) 306:23
Average number of searches completed per session 3.2
Retrievals per search - median 5.0
Retrievals per search - average 360.9
Retrievals per search - standard deviation 5387.2
Percent of searches completed with 0 results 26.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 838 38.0%
DISPLAY (excluding automatic displays) 549 24.9%
HELP 68 3.1%
EXPLAIN 84 3.8%
SET/RESET 86 3.9%
SHOW 12 0.5%
ADD ON (AND, OR, AND NOT) 73 3.3%
LOGON or LOGOFF 422 19.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 75 3.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.2%
SHORT 82.1%
LONG 9.0%
TAGS 0.3%
FIELDS 0.4%
PERIODICALS 1.4%
COMMENTS 0.0%
Other 2.6%
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 225 25.6% 60 26.7% 55 1542.0 12417.6
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 281 31.9% 91 32.4% 9 125.7 647.3
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 68 7.7% 18 26.5% 73 744.1 3839.3
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 14 1.6% 9 64.3% 8 35.8 68.9
EXACT PE 1 0.1% 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 291 33.1% 59 20.3% 16 71.3 274.6
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By number of indexes:
Multiple 41 4.9% 8 19.5% 127 202.6 250.1
Single 797 95.1% 222 27.9% 15 554.5 6775.1
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 7:41
Average session length (minutes:seconds) 7:39
Longest session recorded (minutes:seconds) 16:45
Average number of searches completed per session 2.3
Retrievals per search - median 2.0
Retrievals per search - average 33.9
Retrievals per search - standard deviation 94.7
Percent of searches completed with 0 results 32.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 61 30.5%
DISPLAY (excluding automatic displays) 80 40.0%
HELP 2 1.0%
EXPLAIN 9 4.5%
SET/RESET 6 3.0%
SHOW 1 0.5%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 39 19.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.4%
SHORT 85.9%
LONG 7.6%
TAGS 0.0%
FIELDS 1.1%
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 27 38.0% 9 33.3% 20 31.9 37.6
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 5 7.0% 2 40.0% 2 104.3 178.1
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 29 40.8% 10 34.5% 8 24.8 43.4
ABSTRACT 3 4.2% 2 66.7% 1 1.0 0.0
SUBJECT 5 7.0% 1 20.0% 25 174.3 315.0
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 1.4% 0 0.0% 88 88.0 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 1 1.4% 0 0.0% 1 1.0 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 10 16.4% 4 40.0% 3 13.0 17.5
Single 51 83.6% 16 31.4% 17 56.9 120.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 6.9%
Ten most frequent errors:
1. NS command - no next screen 29.0%
2. First word of command is invalid 18.6%
3. Z39.50 host cannot process command 9.0%
4. Too many truncated words to process 8.3%
5. FIND command with invalid index name 7.7%
6. DISPLAY command contains invalid word 5.8%
7. Index invalid in current database 2.1%
8. PS command - no previous screen 2.0%
9. 945 1.8%
10. Search term missing from search command 1.7%
11. All others 14.0%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 13.5%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 12.6%
3. LOCATE (Z39.50 DBS) 11.2%
4. Unrecognized term 8.1%
5. INDEXES (WCAT DB) 5.8%
6. FIND (Z39.50 DBS) 4.9%
7. GUIDE (Z39.50 A&I DBS w/o truncation) 3.6%
8. GUIDE (ART DB) 3.1%
9. INDEXES (JRNL DB) 3.1%
10. Unrecognized term-reminders off 3.1%
11. All others 30.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.4%
2. First word of command is invalid 13.3%
3. DISPLAY command-first of >1 screen 9.3%
4. DISPLAY command-complete in one screen 7.4%
5. FIND command with invalid index name 5.6%
6. FIND command with zero results 4.8%
7. DISPLAY command - middle of >1 screen 4.0%
8. F/BR with index invalid in current DB 4.0%
9. DISPLAY command - last of >1 screen 3.2%
10. FIND command retrieves 1 book 2.9%
11. All others 18.1%
Ten most frequent SHOW requests:
1. HISTORY 62.3%
2. SEARCH 11.5%
3. GLOSSARY 6.6%
4. TIMEOUT SETTING 6.6%
5. SETTINGS (Z39.50 DBS) 3.3%
6. TIME 3.3%
7. RILM CLASSES 21-29 1.6%
8. SYSTEM NEWS 1.6%
9. DATABASE NEWS 1.6%
10. LOADING STATISTICS 1.6%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)