MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 03/02/02 through 03/08/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 15 47 62
Davis 23 0 23
Irvine 3 0 3
Los Angeles 0 5 5
Riverside 2 1 3
San Diego 1 2 3
San Francisco 0 0 0
Santa Barbara 0 3 3
Santa Cruz 0 4 4
Other - UC 0 0 0
Other-Network UC n/a 8 8
_______ ______ _____
44 70 114
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 1 0
2-4 a.m. 1 1 0
4-6 a.m. 0 0 0
6-8 a.m. 0 0 0
8-10 a.m. 10 20 276
10-12 a.m. 19 47 90
12-2 p.m. 26 80 1,629
2-4 p.m. 25 59 475
4-6 p.m. 11 61 668
6-8 p.m. 7 7 30
8-10 p.m. 5 25 90
10-12 p.m. 9 33 171
__________ __________ __________ _________________
Total: 114 334 3,429
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 25 169 194
Davis 72 0 72
Irvine 0 0 0
Los Angeles 0 11 11
Riverside 3 6 9
San Diego 0 3 3
San Francisco 0 0 0
Santa Barbara 0 4 4
Santa Cruz 0 25 25
Other - UC 0 0 0
Other-Network UC n/a 16 16
_______ ______ _____
100 234 334
Number of FIND commands by database
WorldCat 0
Art Index 58
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 276
RILM Index 0
Total number of FIND commands 334
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 173 2,304 2,477
Davis 365 0 365
Irvine 0 0 0
Los Angeles 0 152 152
Riverside 0 11 11
San Diego 0 57 57
San Francisco 0 0 0
Santa Barbara 0 63 63
Santa Cruz 0 168 168
Other - UC 0 0 0
Other-Network UC n/a 136 136
_______ ______ _____
538 2,891 3,429
Number of Records Displayed by database
WorldCat 0
Art Index 521
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,908
RILM Index 0
Total number of Records Displayed 3,429
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 20 17.5%
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 94 82.5%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 17.4%
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 82.6%
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 1.4
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.5
Standard deviation in seconds 0.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:11
Average session length (minutes:seconds) 7:39
Longest session recorded (minutes:seconds) 35:33
Average number of searches completed per session 2.9
Retrievals per search - median 1.5
Retrievals per search - average 19.0
Retrievals per search - standard deviation 48.2
Percent of searches completed with 0 results 39.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 58 36.5%
DISPLAY (excluding automatic displays) 48 30.2%
HELP 8 5.0%
EXPLAIN 7 4.4%
SET/RESET 6 3.8%
SHOW 2 1.3%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 28 17.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 1.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.9%
SHORT 91.8%
LONG 1.6%
TAGS 0.0%
FIELDS 1.6%
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 20 31.3% 8 40.0% 5 14.7 20.5
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 23 35.9% 7 30.4% 12 38.0 69.7
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 21 32.8% 12 57.1% 7 35.3 69.7
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 10.3% 4 66.7% 1 1.0 0.0
Single 52 89.7% 19 36.5% 12 33.3 60.4
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 7:04
Average session length (minutes:seconds) 11:09
Longest session recorded (minutes:seconds) 120:21
Average number of searches completed per session 2.9
Retrievals per search - median 3.0
Retrievals per search - average 54.4
Retrievals per search - standard deviation 188.6
Percent of searches completed with 0 results 28.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 273 40.7%
DISPLAY (excluding automatic displays) 188 28.0%
HELP 13 1.9%
EXPLAIN 14 2.1%
SET/RESET 39 5.8%
SHOW 3 0.4%
ADD ON (AND, OR, AND NOT) 3 0.4%
LOGON or LOGOFF 114 17.0%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 24 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.8%
SHORT 81.2%
LONG 12.6%
TAGS 0.0%
FIELDS 0.8%
PERIODICALS 0.8%
COMMENTS 0.0%
Other 0.8%
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 66 23.9% 24 36.4% 36 234.8 416.4
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 74 26.8% 27 36.5% 4 30.0 61.0
SERIES 3 1.1% 2 66.7% 23 23.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 20 7.2% 2 10.0% 20 79.9 162.5
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 3 1.1% 1 33.3% 202 202.0 284.3
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 110 39.9% 26 23.6% 7 17.8 25.6
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 5 1.8% 3 60.0% 2 2.0 0.0
Single 266 98.2% 76 28.6% 11 77.0 222.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 11.2%
Ten most frequent errors:
1. First word of command is invalid 41.0%
2. NS command - no next screen 24.8%
3. FIND command with invalid index name 9.5%
4. PS command - no previous screen 4.8%
5. SAVE command issued from a Z39.50 db 2.9%
6. Valid command at an inappropriate time 1.9%
7. SHOW command contains invalid word 1.9%
8. 167 1.9%
9. Index invalid in current database 1.9%
10. DISPLAY command - no FIND results 1.0%
11. All others 8.6%
Ten most frequent EXPLAIN requests:
1. Unrecognized term-reminders off 42.9%
2. GUIDE (ART DB) 19.0%
3. GUIDE: Z39.50 non-A&I DBS w/o truncation 19.0%
4. INDEXES (MLA DB) 14.3%
5. LOCATE (Z39.50 DBS) 4.8%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.8%
2. First word of command is invalid 21.4%
3. FIND command with invalid index name 16.7%
4. FIND command with zero results 11.9%
5. DISPLAY command - middle of >1 screen 9.5%
6. SHOW command with invalid modifier 4.8%
7. 589 4.8%
8. Valid command at an inappropriate time 2.4%
9. DISPLAY command-first of >1 screen 2.4%
10. DISPLAY command - last of >1 screen 2.4%
11. All others 0.0%
Ten most frequent SHOW requests:
1. GLOSSARY 60.0%
11. All others 40.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)