MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 05/25/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 21 23
Davis 18 0 18
Irvine 2 0 2
Los Angeles 0 4 4
Riverside 0 1 1
San Diego 3 0 3
San Francisco 0 0 0
Santa Barbara 1 1 2
Santa Cruz 0 1 1
Other - UC 0 0 0
Other-Network UC n/a 4 4
_______ ______ _____
26 32 58
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 2 5 1
8-10 a.m. 2 9 39
10-12 a.m. 13 49 1,086
12-2 p.m. 20 83 1,081
2-4 p.m. 10 49 328
4-6 p.m. 7 23 96
6-8 p.m. 3 0 0
8-10 p.m. 1 1 0
10-12 p.m. 0 0 0
__________ __________ __________ _________________
Total: 58 219 2,631
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 85 87
Davis 54 0 54
Irvine 6 0 6
Los Angeles 0 8 8
Riverside 0 9 9
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 44 3 47
Santa Cruz 0 2 2
Other - UC 0 0 0
Other-Network UC n/a 6 6
_______ ______ _____
106 113 219
Number of FIND commands by database
WorldCat 0
Art Index 15
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 204
RILM Index 0
Total number of FIND commands 219
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 1,057 1,062
Davis 935 0 935
Irvine 9 0 9
Los Angeles 0 26 26
Riverside 0 12 12
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 406 55 461
Santa Cruz 0 75 75
Other - UC 0 0 0
Other-Network UC n/a 51 51
_______ ______ _____
1,355 1,276 2,631
Number of Records Displayed by database
WorldCat 0
Art Index 512
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,119
RILM Index 0
Total number of Records Displayed 2,631
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 5 8.6%
ArticleFirst 0 0.0%
ContentsFirst 0 0.0%
ERIC 0 0.0%
GPO 0 0.0%
PapersFirst Index 0 0.0%
ProceedingsFirst Index 0 0.0%
SocAbstracts 0 0.0%
PAIS International 0 0.0%
MLA Bibliography 53 91.4%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 6.8%
Percent of searches done in the JRNL database 0.0%
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 0.0%
Percent of searches done in the PROC database 0.0%
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 93.2%
Percent of searches done in the RILM database 0.0%
1.5 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.2
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 0.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 6:34
Average session length (minutes:seconds) 9:59
Longest session recorded (minutes:seconds) 22:07
Average number of searches completed per session 3.0
Retrievals per search - median 3.0
Retrievals per search - average 557.8
Retrievals per search - standard deviation 1337.5
Percent of searches completed with 0 results 6.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 13 28.9%
DISPLAY (excluding automatic displays) 14 31.1%
HELP 2 4.4%
EXPLAIN 5 11.1%
SET/RESET 2 4.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 4.4%
LOGON or LOGOFF 6 13.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 1 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 94.1%
LONG 0.0%
TAGS 0.0%
FIELDS 5.9%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.0%
Art Index Database Statistics continued:
________________________________________
FINDs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. FINDs No. Index Median Avg. Dev.
______ ______ ______ _______ ______ _______ _______
By index:
PERSONAL AUTHOR 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
KEYWORD 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 6 46.2% 0 0.0% 3 2.8 0.4
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 7 53.8% 0 0.0% 105 1192.7 1814.4
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 13 100% 0 0.0% 3 643.5 1423.8
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:30
Average session length (minutes:seconds) 10:20
Longest session recorded (minutes:seconds) 70:10
Average number of searches completed per session 3.8
Retrievals per search - median 6.0
Retrievals per search - average 116.3
Retrievals per search - standard deviation 375.4
Percent of searches completed with 0 results 25.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 201 44.1%
DISPLAY (excluding automatic displays) 114 25.0%
HELP 14 3.1%
EXPLAIN 9 2.0%
SET/RESET 19 4.2%
SHOW 5 1.1%
ADD ON (AND, OR, AND NOT) 3 0.7%
LOGON or LOGOFF 75 16.4%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 16 3.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.1%
SHORT 86.0%
LONG 7.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.6%
COMMENTS 0.0%
Other 0.0%
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 9 4.2% 1 11.1% 70 485.3 756.1
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 87 40.8% 31 35.6% 8 171.4 498.2
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 20 9.4% 6 30.0% 34 180.8 426.1
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 2 0.9% 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 95 44.6% 16 16.8% 17 149.1 374.5
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 12 6.0% 4 33.3% 140 511.5 679.7
Single 189 94.0% 47 24.9% 13 138.1 406.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 13.9%
Ten most frequent errors:
1. First word of command is invalid 32.1%
2. NS command - no next screen 28.4%
3. FIND command with invalid index name 12.3%
4. Invalid Publication Type entered 4.9%
5. Search term missing from search command 3.7%
6. No previous search for BACKUP 3.7%
7. NS of SHOW/EXP command-no next screen 3.7%
8. DISPLAY command contains invalid word 2.5%
9. PS command - no previous screen 2.5%
10. Index invalid in current database 2.5%
11. All others 3.7%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 21.4%
2. Unrecognized term-reminders off 21.4%
3. LOCATE (Z39.50 DBS) 14.3%
4. G293 7.1%
5. GUIDE (ART DB) 7.1%
6. G395 7.1%
7. G594 7.1%
8. Unrecognized term 7.1%
9. 1688 7.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 30.0%
2. Help requested from SET DB command 30.0%
3. FIND command with invalid index name 10.0%
4. FIND command with zero results 6.7%
5. FIND command retrieves >1 book 6.7%
6. DISPLAY command-complete in one screen 3.3%
7. DISPLAY command-first of >1 screen 3.3%
8. DISPLAY command - last of >1 screen 3.3%
9. 278 3.3%
10. 725 3.3%
11. All others 0.0%
Ten most frequent SHOW requests:
1. GLOSSARY 60.0%
2. SEARCH 20.0%
3. HISTORY 20.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)