MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 04/06/02 through 04/12/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 11 44 55
Davis 10 0 10
Irvine 6 0 6
Los Angeles 0 4 4
Riverside 1 5 6
San Diego 2 1 3
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 4 4
Other - UC 0 9 9
Other-Network UC n/a 7 7
_______ ______ _____
30 74 104
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 6 30
2-4 a.m. 5 11 103
4-6 a.m. 0 0 0
6-8 a.m. 0 0 0
8-10 a.m. 4 7 43
10-12 a.m. 16 49 179
12-2 p.m. 27 57 434
2-4 p.m. 14 26 191
4-6 p.m. 15 43 355
6-8 p.m. 10 16 170
8-10 p.m. 8 22 244
10-12 p.m. 3 31 479
__________ __________ __________ _________________
Total: 104 268 2,228
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 24 126 150
Davis 20 0 20
Irvine 6 0 6
Los Angeles 0 3 3
Riverside 2 12 14
San Diego 0 2 2
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 19 19
Other - UC 0 40 40
Other-Network UC n/a 14 14
_______ ______ _____
52 216 268
Number of FIND commands by database
WorldCat 0
Art Index 51
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 217
RILM Index 0
Total number of FIND commands 268
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 296 759 1,055
Davis 162 0 162
Irvine 50 0 50
Los Angeles 0 71 71
Riverside 0 44 44
San Diego 0 44 44
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 294 294
Other - UC 0 484 484
Other-Network UC n/a 24 24
_______ ______ _____
508 1,720 2,228
Number of Records Displayed by database
WorldCat 0
Art Index 698
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,530
RILM Index 0
Total number of Records Displayed 2,228
1.4 Relative Use of Databases
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Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 25 24.0%
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 79 76.0%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 19.0%
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 81.0%
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 0.7
Standard deviation in seconds 2.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.5
Standard deviation in seconds 0.4
2.1 Art Index Database Statistics
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Median session length (minutes:seconds) 2:24
Average session length (minutes:seconds) 7:10
Longest session recorded (minutes:seconds) 31:42
Average number of searches completed per session 2.0
Retrievals per search - median 2.0
Retrievals per search - average 50.1
Retrievals per search - standard deviation 100.7
Percent of searches completed with 0 results 43.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 50 25.8%
DISPLAY (excluding automatic displays) 53 27.3%
HELP 18 9.3%
EXPLAIN 16 8.2%
SET/RESET 3 1.5%
SHOW 4 2.1%
ADD ON (AND, OR, AND NOT) 1 0.5%
LOGON or LOGOFF 44 22.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 5 2.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 98.5%
LONG 1.4%
TAGS 0.0%
FIELDS 0.0%
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 14 26.9% 4 28.6% 22 28.0 35.2
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 27 51.9% 13 48.1% 7 126.3 152.7
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 11 21.2% 5 45.5% 113 114.0 92.8
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 4.0% 1 50.0% 176 176.0 0.0
Single 48 96.0% 20 41.7% 22 85.0 122.0
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:01
Average session length (minutes:seconds) 6:28
Longest session recorded (minutes:seconds) 37:35
Average number of searches completed per session 2.7
Retrievals per search - median 4.0
Retrievals per search - average 884.9
Retrievals per search - standard deviation 10408
Percent of searches completed with 0 results 27.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 211 38.6%
DISPLAY (excluding automatic displays) 131 23.9%
HELP 19 3.5%
EXPLAIN 14 2.6%
SET/RESET 28 5.1%
SHOW 4 0.7%
ADD ON (AND, OR, AND NOT) 6 1.1%
LOGON or LOGOFF 105 19.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 29 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.3%
SHORT 85.4%
LONG 0.0%
TAGS 0.0%
FIELDS 2.8%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 2.2%
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 50 22.8% 16 32.0% 18 770.6 1899.5
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 41 18.7% 14 34.1% 6 99.9 302.8
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 11.0% 6 25.0% 48 476.2 843.1
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 2 0.9% 0 0.0% 2 2.0 0.0
EXACT PE 3 1.4% 0 0.0% 5 4.0 1.7
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 99 45.2% 25 25.3% 9 2087.4 17784.4
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 8 3.8% 4 50.0% 9 37.5 62.5
Single 203 96.2% 53 26.1% 9 1277.7 12511.6
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 16.8%
Ten most frequent errors:
1. First word of command is invalid 37.3%
2. NS command - no next screen 26.7%
3. FIND command with invalid index name 15.3%
4. PS command - no previous screen 4.7%
5. Index invalid in current database 4.0%
6. Invalid SET DATABASE command issued 2.7%
7. Valid command at an inappropriate time 2.0%
8. No previous search for BACKUP 1.3%
9. SHOW command contains invalid word 0.7%
10. DISPLAY command - no FIND results 0.7%
11. All others 4.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ART DB) 33.3%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 26.7%
3. Unrecognized term-reminders off 13.3%
4. INDEXES (MLA DB) 6.7%
5. LOCATE (Z39.50 DBS) 6.7%
6. G395 3.3%
7. LOCATE (Z39.50 DBS) 3.3%
8. Unrecognized term 3.3%
9. DATABASES 3.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 32.8%
2. First word of command is invalid 25.4%
3. FIND command with zero results 11.9%
4. FIND command with invalid index name 10.4%
5. F/BR with index invalid in current DB 6.0%
6. 15 3.0%
7. DISPLAY command-first of >1 screen 3.0%
8. SAVE command issued from a Z39.50 db 1.5%
9. 3 HELP commands issued from same code 1.5%
10. FIND command retrieves >1 book 1.5%
11. All others 3.0%
Ten most frequent SHOW requests:
1. GLOSSARY 37.5%
2. HISTORY 25.0%
3. SEARCH 12.5%
4. DATABASES 12.5%
11. All others 12.5%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)