MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 01/12/02 through 01/18/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 53 61
Davis 18 0 18
Irvine 7 0 7
Los Angeles 0 2 2
Riverside 0 1 1
San Diego 1 0 1
San Francisco 0 0 0
Santa Barbara 0 3 3
Santa Cruz 0 1 1
Other - UC 0 0 0
Other-Network UC n/a 7 7
_______ ______ _____
34 67 101
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 34 58
2-4 a.m. 1 1 1
4-6 a.m. 0 0 0
6-8 a.m. 0 0 0
8-10 a.m. 9 13 33
10-12 a.m. 27 56 1,404
12-2 p.m. 21 75 763
2-4 p.m. 22 53 470
4-6 p.m. 7 11 55
6-8 p.m. 5 23 42
8-10 p.m. 5 10 33
10-12 p.m. 0 0 125
__________ __________ __________ _________________
Total: 101 276 2,984
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 22 142 164
Davis 23 0 23
Irvine 61 0 61
Los Angeles 0 3 3
Riverside 0 1 1
San Diego 2 0 2
San Francisco 0 0 0
Santa Barbara 0 5 5
Santa Cruz 0 2 2
Other - UC 0 0 0
Other-Network UC n/a 15 15
_______ ______ _____
108 168 276
Number of FIND commands by database
WorldCat 0
Art Index 11
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 265
RILM Index 0
Total number of FIND commands 276
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 153 1,290 1,443
Davis 55 0 55
Irvine 1,457 0 1,457
Los Angeles 0 4 4
Riverside 0 2 2
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 0 10 10
Santa Cruz 0 2 2
Other - UC 0 0 0
Other-Network UC n/a 11 11
_______ ______ _____
1,665 1,319 2,984
Number of Records Displayed by database
WorldCat 0
Art Index 123
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,861
RILM Index 0
Total number of Records Displayed 2,984
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 14 13.9%
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 87 86.1%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 4.0%
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 96.0%
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 0.6
Standard deviation in seconds 1.9
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) 2:48
Average session length (minutes:seconds) 4:44
Longest session recorded (minutes:seconds) 12:29
Average number of searches completed per session 0.8
Retrievals per search - median 3.0
Retrievals per search - average 70.6
Retrievals per search - standard deviation 181.3
Percent of searches completed with 0 results 27.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 11 14.5%
DISPLAY (excluding automatic displays) 27 35.5%
HELP 7 9.2%
EXPLAIN 4 5.3%
SET/RESET 3 3.9%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 21 27.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 3.9%
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%
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 2 18.2% 0 0.0% 2 2.0 1.4
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 4 36.4% 2 50.0% 37 37.0 0.0
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 5 45.5% 1 20.0% 42 174.8 293.6
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 11 100% 3 27.3% 21 97.1 209.8
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 6:10
Average session length (minutes:seconds) 8:18
Longest session recorded (minutes:seconds) 35:25
Average number of searches completed per session 3.0
Retrievals per search - median 3.0
Retrievals per search - average 88.0
Retrievals per search - standard deviation 366.7
Percent of searches completed with 0 results 32.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 262 42.1%
DISPLAY (excluding automatic displays) 155 24.9%
HELP 13 2.1%
EXPLAIN 17 2.7%
SET/RESET 34 5.5%
SHOW 6 1.0%
ADD ON (AND, OR, AND NOT) 3 0.5%
LOGON or LOGOFF 110 17.7%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 23 3.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.8%
SHORT 77.8%
LONG 12.9%
TAGS 0.0%
FIELDS 2.2%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 0.4%
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 74 27.6% 32 43.2% 15 225.8 475.7
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 59 22.0% 18 30.5% 5 48.5 129.0
SERIES 1 0.4% 0 0.0% 58 58.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 34 12.7% 10 29.4% 14 153.4 312.8
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 1.5% 2 50.0% 4 4.0 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 96 35.8% 28 29.2% 7 119.1 567.6
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 6 2.3% 5 83.3% 1 1.0 0.0
Single 256 97.7% 80 31.3% 7 132.5 443.7
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 12.1%
Ten most frequent errors:
1. NS command - no next screen 39.6%
2. First word of command is invalid 30.2%
3. FIND command with invalid index name 6.3%
4. PS command - no previous screen 5.2%
5. DISPLAY command contains invalid word 4.2%
6. Search term missing from search command 3.1%
7. Valid command at an inappropriate time 2.1%
8. Index invalid in current database 2.1%
9. Invalid SET DATABASE command issued 1.0%
10. No previous search for BACKUP 1.0%
11. All others 5.2%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 52.4%
2. Unrecognized term-reminders off 23.8%
3. GUIDE (ART DB) 9.5%
4. LOGON 9.5%
5. INDEXES (MLA DB) 4.8%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 31.7%
2. First word of command is invalid 22.0%
3. FIND command with zero results 14.6%
4. DISPLAY command - middle of >1 screen 7.3%
5. FIND command with invalid index name 4.9%
6. F/BR with index invalid in current DB 4.9%
7. Valid command at an inappropriate time 2.4%
8. 15 2.4%
9. 3 HELP commands issued from same code 2.4%
10. DISPLAY command-first of >1 screen 2.4%
11. All others 4.9%
Ten most frequent SHOW requests:
1. GLOSSARY 33.3%
2. 0408 16.7%
3. 0423 16.7%
4. SEARCH 16.7%
5. HISTORY 16.7%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)