MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/09/00 through 12/15/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 111 440 551
Davis 319 83 402
Irvine 88 0 88
Los Angeles 24 171 195
Riverside 168 5 173
San Diego 97 36 133
San Francisco 15 0 15
Santa Barbara 75 31 106
Santa Cruz 44 24 68
Other - UC 2 23 25
Other-Network UC n/a 1,325 1,325
_______ ______ _____
943 2,138 3,081
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 16 47 321
2-4 a.m. 3 4 53
4-6 a.m. 2 4 0
6-8 a.m. 37 107 549
8-10 a.m. 391 1,140 8,131
10-12 a.m. 619 2,037 16,314
12-2 p.m. 570 1,615 12,843
2-4 p.m. 648 2,123 15,375
4-6 p.m. 528 1,548 15,124
6-8 p.m. 155 625 5,567
8-10 p.m. 83 682 5,979
10-12 p.m. 29 167 1,285
__________ __________ __________ _________________
Total: 3,081 10,099 81,541
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 353 1,393 1,746
Davis 891 178 1,069
Irvine 160 0 160
Los Angeles 82 433 515
Riverside 612 12 624
San Diego 296 80 376
San Francisco 60 0 60
Santa Barbara 247 155 402
Santa Cruz 92 108 200
Other - UC 2 34 36
Other-Network UC n/a 4,911 4,911
_______ ______ _____
2,795 7,304 10,099
Number of FIND commands by database
WorldCat 8,861
Art Index 70
ArticleFirst 148
ContentsFirst 5
ERIC 0
GPO 0
PapersFirst Index 205
ProceedingsFirst Index 57
SocAbstracts 0
PAIS International 23
MLA Bibliography 683
RILM Index 47
Total number of FIND commands 10,099
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,288 11,899 14,187
Davis 7,024 1,234 8,258
Irvine 1,566 0 1,566
Los Angeles 552 4,651 5,203
Riverside 6,269 60 6,329
San Diego 2,388 1,221 3,609
San Francisco 611 0 611
Santa Barbara 1,246 1,311 2,557
Santa Cruz 566 467 1,033
Other - UC 6 513 519
Other-Network UC n/a 37,669 37,669
_______ ______ _____
22,516 59,025 81,541
Number of Records Displayed by database
WorldCat 73,234
Art Index 836
ArticleFirst 622
ContentsFirst 120
ERIC 0
GPO 0
PapersFirst Index 634
ProceedingsFirst Index 553
SocAbstracts 0
PAIS International 163
MLA Bibliography 4,884
RILM Index 495
Total number of Records Displayed 81,541
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 2,487 80.7%
Art Index 33 1.1%
ArticleFirst 94 3.1%
ContentsFirst 3 0.1%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 152 4.9%
ProceedingsFirst Index 56 1.8%
SocAbstracts 0 0.0%
PAIS International 17 0.6%
MLA Bibliography 225 7.3%
RILM Index 14 0.5%
Percent of searches done in the WCAT database 87.7%
Percent of searches done in the ART database 0.7%
Percent of searches done in the JRNL database 1.5%
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 2.0%
Percent of searches done in the PROC database 0.6%
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 6.8%
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 1.4
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) 13:55
Average session length (minutes:seconds) 21:35
Longest session recorded (minutes:seconds) 546:15
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 334.4
Retrievals per search - standard deviation 6725.4
Percent of searches completed with 0 results 24.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 7,914 32.8%
DISPLAY (excluding automatic displays) 11,251 46.7%
HELP 32 0.1%
EXPLAIN 66 0.3%
SET/RESET 1,682 7.0%
SHOW 33 0.1%
ADD ON (AND, OR, AND NOT) 947 3.9%
LOGON or LOGOFF 1,875 7.8%
COMMENT 0 0.0%
USE 8 0.0%
OTHER 298 1.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.6%
SHORT 38.1%
LONG 8.7%
TAGS 0.4%
FIELDS 8.6%
PERIODICALS 22.4%
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 964 11.2% 185 19.2% 3 23.8 67.1
SUBJECT 265 3.1% 38 14.3% 39 3583.0 24086.9
EXACT SUBJECT 10 0.1% 3 30.0% 190 764.6 1192.4
SERIES 121 1.4% 35 28.9% 6 156.6 893.1
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 12 0.1% 0 0.0% 141 117.2 80.9
FORM 206 2.4% 31 15.0% 9 41.5 95.6
MUSIC PUBLISHER 0 0.0% 0 0.0% 0 0.0 0.0
REPORT NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
NOTES 8 0.1% 2 25.0% 13 46.3 65.7
ACCESSION NUMBER 150 1.7% 11 7.3% 1 1.0 0.0
PLACE OF PUBL. 10 0.1% 5 50.0% 17 16.0 10.0
UNIFORM TITLE 0 0.0% 0 0.0% 0 0.0 0.0
GOV DOC NUM 4 0.0% 3 75.0% 1 1.0 0.0
ISBN/ISSN/LCCN 530 6.2% 160 30.2% 2 4.9 10.8
CODEN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 1,657 19.3% 512 30.9% 4 45.5 640.1
EXACT PE 102 1.2% 24 23.5% 3 32.0 103.0
RPE 0 0.0% 0 0.0% 0 0.0 0.0
XRP 207 2.4% 39 18.8% 5 48.9 201.6
COMMENTS 0 0.0% 0 0.0% 0 0.0 0.0
Other indexes 4,335 50.5% 1,062 24.5% 9 458.0 6974.9
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 610 7.7% 131 21.5% 5 38.9 135.2
Single 7,301 92.3% 1,837 25.2% 5 436.6 7328.6
2.2 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:39
Average session length (minutes:seconds) 5:53
Longest session recorded (minutes:seconds) 23:07
Average number of searches completed per session 2.1
Retrievals per search - median 1.0
Retrievals per search - average 25.2
Retrievals per search - standard deviation 76.4
Percent of searches completed with 0 results 48.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 69 39.0%
DISPLAY (excluding automatic displays) 40 22.6%
HELP 5 2.8%
EXPLAIN 2 1.1%
SET/RESET 12 6.8%
SHOW 1 0.6%
ADD ON (AND, OR, AND NOT) 1 0.6%
LOGON or LOGOFF 42 23.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 2.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.8%
SHORT 84.3%
LONG 2.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
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 21 30.4% 11 52.4% 10 18.7 32.6
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 14 20.3% 5 35.7% 24 121.9 172.4
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 34 49.3% 18 52.9% 5 26.6 56.5
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 69 100% 34 49.3% 11 48.8 102.9
2.3 ArticleFirst Database Statistics
_____________________________________
Median session length (minutes:seconds) 10:08
Average session length (minutes:seconds) 11:18
Longest session recorded (minutes:seconds) 59:04
Average number of searches completed per session 1.6
Retrievals per search - median 4.0
Retrievals per search - average 488.7
Retrievals per search - standard deviation 2052.2
Percent of searches completed with 0 results 24.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 136 34.0%
DISPLAY (excluding automatic displays) 85 21.2%
HELP 10 2.5%
EXPLAIN 19 4.7%
SET/RESET 79 19.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 12 3.0%
LOGON or LOGOFF 42 10.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 17 4.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.8%
SHORT 65.2%
LONG 0.9%
TAGS 0.0%
FIELDS 7.1%
PERIODICALS 17.0%
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 83 59.7% 27 32.5% 7 519.6 1882.3
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 33 23.7% 1 3.0% 24 1295.6 3528.6
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 10 7.2% 2 20.0% 10 95.3 157.5
EXACT PE 10 7.2% 4 40.0% 4 25.8 51.2
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 2.2% 1 33.3% 2 2.0 1.4
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 3 2.2% 1 33.3% 2 2.0 1.4
Single 133 97.8% 33 24.8% 9 714.7 2459.5
2.4 ContentsFirst Database Statistics
______________________________________
Median session length (minutes:seconds) 3:17
Average session length (minutes:seconds) 3:17
Longest session recorded (minutes:seconds) 3:17
Average number of searches completed per session 1.7
Retrievals per search - median 0.0
Retrievals per search - average 228.0
Retrievals per search - standard deviation 509.8
Percent of searches completed with 0 results 80.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 5 41.7%
DISPLAY (excluding automatic displays) 1 8.3%
HELP 1 8.3%
EXPLAIN 1 8.3%
SET/RESET 2 16.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 2 16.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 0 0.0%
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 1 20.0% 1 100% 0 0.0 0.0
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 2 40.0% 2 100% 0 0.0 0.0
SUBJECT 2 40.0% 1 50.0% 1,140 1140.0 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% 1,140 1140.0 0.0
2.5 PapersFirst Index Database Statistics
__________________________________________
Median session length (minutes:seconds) 3:42
Average session length (minutes:seconds) 10:25
Longest session recorded (minutes:seconds) 61:39
Average number of searches completed per session 1.3
Retrievals per search - median 1.0
Retrievals per search - average 111.2
Retrievals per search - standard deviation 717.4
Percent of searches completed with 0 results 48.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 183 34.8%
DISPLAY (excluding automatic displays) 121 23.0%
HELP 5 1.0%
EXPLAIN 12 2.3%
SET/RESET 137 26.0%
SHOW 6 1.1%
ADD ON (AND, OR, AND NOT) 22 4.2%
LOGON or LOGOFF 33 6.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.4%
SHORT 56.4%
LONG 6.0%
TAGS 0.0%
FIELDS 11.4%
PERIODICALS 4.7%
COMMENTS 0.0%
Other 10.1%
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 69 31.4% 30 43.5% 11 266.7 1205.8
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 114 51.8% 65 57.0% 3 38.6 122.9
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 8 3.6% 1 12.5% 257 525.7 807.4
CONFERENCE 7 3.2% 4 57.1% 43 2187.7 3739.8
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 1 0.5% 1 100% 0 0.0 0.0
EXACT JOURNAL 2 0.9% 2 100% 0 0.0 0.0
DATE 13 5.9% 9 69.2% 35 37.0 36.1
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 6 2.7% 2 33.3% 12 21.0 22.9
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 36 19.8% 24 66.7% 3 14.8 25.2
Single 146 80.2% 64 43.8% 11 273.3 1115.9
2.6 ProceedingsFirst Index Database Statistics
_______________________________________________
Median session length (minutes:seconds) 5:34
Average session length (minutes:seconds) 23:13
Longest session recorded (minutes:seconds) 72:26
Average number of searches completed per session 1.0
Retrievals per search - median 3.0
Retrievals per search - average 19.5
Retrievals per search - standard deviation 75.9
Percent of searches completed with 0 results 26.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 55 21.8%
DISPLAY (excluding automatic displays) 113 44.8%
HELP 9 3.6%
EXPLAIN 9 3.6%
SET/RESET 51 20.2%
SHOW 1 0.4%
ADD ON (AND, OR, AND NOT) 2 0.8%
LOGON or LOGOFF 10 4.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 0.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 36.3%
SHORT 10.5%
LONG 14.5%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 33.1%
COMMENTS 0.0%
Other 5.6%
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 6 10.9% 3 50.0% 7 192.3 325.3
CONFERENCE 31 56.4% 9 29.0% 4 10.1 15.2
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 5 9.1% 1 20.0% 1 6.8 11.5
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 9 16.4% 1 11.1% 7 22.9 31.2
EXACT PE 4 7.3% 0 0.0% 32 24.8 15.2
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 55 100% 14 25.5% 4 27.0 88.7
2.7 PAIS International Database Statistics
___________________________________________
Median session length (minutes:seconds) 1:28
Average session length (minutes:seconds) 4:18
Longest session recorded (minutes:seconds) 13:17
Average number of searches completed per session 1.4
Retrievals per search - median 1.0
Retrievals per search - average 12.9
Retrievals per search - standard deviation 36.4
Percent of searches completed with 0 results 43.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 23 29.5%
DISPLAY (excluding automatic displays) 23 29.5%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 1 1.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 30 38.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 100%
LONG 0.0%
TAGS 0.0%
FIELDS 0.0%
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 11 42.3% 4 36.4% 2 18.7 41.2
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 7 26.9% 2 28.6% 4 32.0 61.7
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 3 11.5% 2 66.7% 6 6.0 0.0
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 2 7.7% 2 100% 0 0.0 0.0
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 3 11.5% 1 33.3% 1 1.0 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 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 3 13.0% 1 33.3% 1 1.0 0.0
Single 20 87.0% 9 45.0% 5 26.8 50.1
2.8 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:59
Average session length (minutes:seconds) 10:24
Longest session recorded (minutes:seconds) 103:52
Average number of searches completed per session 3.0
Retrievals per search - median 5.0
Retrievals per search - average 172.9
Retrievals per search - standard deviation 1726.4
Percent of searches completed with 0 results 23.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 637 38.9%
DISPLAY (excluding automatic displays) 409 25.0%
HELP 31 1.9%
EXPLAIN 42 2.6%
SET/RESET 69 4.2%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 46 2.8%
LOGON or LOGOFF 323 19.7%
COMMENT 0 0.0%
USE 2 0.1%
OTHER 78 4.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.4%
SHORT 87.7%
LONG 4.7%
TAGS 0.6%
FIELDS 0.6%
PERIODICALS 1.5%
COMMENTS 0.0%
Other 1.7%
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 133 20.0% 33 24.8% 32 213.5 530.1
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 160 24.0% 44 27.5% 18 100.6 295.9
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 91 13.7% 24 26.4% 9 1065.7 5381.0
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 3 0.5% 0 0.0% 2,467 5629.0 7511.9
PERIODICAL 11 1.7% 8 72.7% 46 32.0 24.2
EXACT PE 2 0.3% 1 50.0% 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 266 39.9% 53 19.9% 8 37.4 156.0
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 29 4.6% 6 20.7% 89 866.1 2963.9
Single 607 95.4% 151 24.9% 11 195.9 1992.0
2.9 RILM Index Database Statistics
___________________________________
Median session length (minutes:seconds) 4:02
Average session length (minutes:seconds) 7:25
Longest session recorded (minutes:seconds) 16:57
Average number of searches completed per session 3.4
Retrievals per search - median 6.0
Retrievals per search - average 47.7
Retrievals per search - standard deviation 141.3
Percent of searches completed with 0 results 23.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 47 34.8%
DISPLAY (excluding automatic displays) 57 42.2%
HELP 0 0.0%
EXPLAIN 1 0.7%
SET/RESET 4 3.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 21 15.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 3.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 10.8%
SHORT 80.0%
LONG 7.7%
TAGS 0.0%
FIELDS 1.5%
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 31 59.6% 6 19.4% 11 27.6 49.8
EXACT AUTHOR 0 0.0% 0 0.0% 0 0.0 0.0
TITLE WORD 5 9.6% 2 40.0% 6 5.0 1.7
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 11 21.2% 3 27.3% 11 23.9 41.1
ABSTRACT 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 5 9.6% 3 60.0% 682 682.0 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 5 10.6% 3 60.0% 9 8.5 10.6
Single 42 89.4% 8 19.0% 10 65.5 163.2
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 7.4%
Ten most frequent errors:
1. NS command - no next screen 28.2%
2. First word of command is invalid 17.5%
3. Z39.50 host cannot process command 10.4%
4. Too many truncated words to process 10.3%
5. FIND command with invalid index name 7.2%
6. DISPLAY command contains invalid word 4.9%
7. 945 2.7%
8. Index invalid in current database 2.3%
9. PS command - no previous screen 2.0%
10. Search term missing from search command 1.9%
11. All others 12.7%
Ten most frequent EXPLAIN requests:
1. LOCATE (Z39.50 DBS) 9.2%
2. FIND (Z39.50 DBS) 8.6%
3. Unrecognized term 8.6%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 7.2%
5. INDEXES (WCAT DB) 5.9%
6. GUIDE (Z39.50 A&I DBS w/o truncation) 5.9%
7. LOCATE (Z39.50 DBS) 5.3%
8. INDEXES (JRNL DB) 5.3%
9. INDEXES (MLA DB) 4.6%
10. Unrecognized term-reminders off 3.9%
11. All others 35.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.5%
2. First word of command is invalid 13.9%
3. F/BR with index invalid in current DB 11.4%
4. DISPLAY command - middle of >1 screen 7.3%
5. FIND command with invalid index name 5.3%
6. DISPLAY command-first of >1 screen 4.9%
7. DISPLAY command-complete in one screen 4.5%
8. FIND command retrieves >1 book 4.1%
9. FIND command with zero results 3.3%
10. DISPLAY command - last of >1 screen 2.4%
11. All others 18.4%
Ten most frequent SHOW requests:
1. HISTORY 78.6%
2. SETTINGS (Z39.50 DBS) 7.1%
3. GLOSSARY 4.8%
4. LIBRARY SETTINGS 2.4%
5. LOCAL INFORMATION 2.4%
6. SEARCH 2.4%
11. All others 2.4%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)