MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 05/18/02 through 05/24/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 12 32 44
Davis 12 0 12
Irvine 10 0 10
Los Angeles 0 2 2
Riverside 1 0 1
San Diego 3 6 9
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 3 3
_______ ______ _____
38 44 82
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 7 109
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 1 1 2
8-10 a.m. 7 11 93
10-12 a.m. 17 45 125
12-2 p.m. 15 46 460
2-4 p.m. 13 17 11
4-6 p.m. 14 93 334
6-8 p.m. 6 12 135
8-10 p.m. 1 2 42
10-12 p.m. 3 10 219
__________ __________ __________ _________________
Total: 82 244 1,530
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 22 106 128
Davis 49 0 49
Irvine 45 0 45
Los Angeles 0 6 6
Riverside 5 0 5
San Diego 0 9 9
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 2 2
_______ ______ _____
121 123 244
Number of FIND commands by database
WorldCat 0
Art Index 29
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 215
RILM Index 0
Total number of FIND commands 244
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 222 570 792
Davis 167 0 167
Irvine 291 0 291
Los Angeles 0 44 44
Riverside 0 0 0
San Diego 0 223 223
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 13 13
_______ ______ _____
680 850 1,530
Number of Records Displayed by database
WorldCat 0
Art Index 292
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,238
RILM Index 0
Total number of Records Displayed 1,530
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 11 13.4%
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 71 86.6%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 11.9%
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 88.1%
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 0.6
Standard deviation in seconds 0.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 1:37
Average session length (minutes:seconds) 4:46
Longest session recorded (minutes:seconds) 20:10
Average number of searches completed per session 2.6
Retrievals per search - median 0.0
Retrievals per search - average 19.8
Retrievals per search - standard deviation 53.9
Percent of searches completed with 0 results 62.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 29 25.4%
DISPLAY (excluding automatic displays) 54 47.4%
HELP 3 2.6%
EXPLAIN 5 4.4%
SET/RESET 6 5.3%
SHOW 2 1.8%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 12 10.5%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 2.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 85.5%
LONG 14.5%
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 9 31.0% 5 55.6% 3 4.5 3.8
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 2 6.9% 2 100% 0 0.0 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 18 62.1% 11 61.1% 29 79.4 89.8
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 0 0.0% 0 0.0% 0 0.0 0.0
Single 29 100% 18 62.1% 9 52.2 79.2
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:07
Average session length (minutes:seconds) 7:55
Longest session recorded (minutes:seconds) 46:40
Average number of searches completed per session 3.0
Retrievals per search - median 3.0
Retrievals per search - average 24.4
Retrievals per search - standard deviation 96.2
Percent of searches completed with 0 results 31.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 211 42.5%
DISPLAY (excluding automatic displays) 124 24.9%
HELP 6 1.2%
EXPLAIN 10 2.0%
SET/RESET 30 6.0%
SHOW 3 0.6%
ADD ON (AND, OR, AND NOT) 4 0.8%
LOGON or LOGOFF 86 17.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 23 4.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.4%
SHORT 75.3%
LONG 12.0%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.2%
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 40 18.8% 14 35.0% 6 25.0 30.6
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 76 35.7% 34 44.7% 5 18.7 33.2
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 8 3.8% 2 25.0% 38 333.5 481.9
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 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 89 41.8% 17 19.1% 12 24.7 40.8
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 4 1.9% 2 50.0% 15 14.5 16.3
Single 205 98.1% 63 30.7% 10 36.3 116.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 10.3%
Ten most frequent errors:
1. First word of command is invalid 38.6%
2. NS command - no next screen 28.6%
3. FIND command with invalid index name 11.4%
4. Index invalid in current database 7.1%
5. Search term missing from search command 4.3%
6. SET DB command entered w/o modifier 2.9%
7. Invalid SET DATABASE command issued 1.4%
8. DISPLAY command contains invalid word 1.4%
9. Command with odd number of double quotes 1.4%
10. Command contains escape or arrow key 1.4%
11. All others 1.4%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 33.3%
2. Unrecognized term-reminders off 33.3%
3. GUIDE (ART DB) 13.3%
4. LOCATE (Z39.50 DBS) 6.7%
5. Unrecognized term 6.7%
6. CATALOG 6.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 45.8%
2. Help requested from SET DB command 29.2%
3. DISPLAY command - middle of >1 screen 8.3%
4. SET DB command entered w/o modifier 4.2%
5. 3 HELP commands issued from same code 4.2%
6. FIND command with zero results 4.2%
7. 278 4.2%
11. All others 0.0%
Ten most frequent SHOW requests:
1. GLOSSARY 60.0%
2. 2292 20.0%
3. SEARCH 20.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)