MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 01/19/02 through 01/25/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 16 62 78
Davis 13 0 13
Irvine 18 0 18
Los Angeles 2 9 11
Riverside 3 0 3
San Diego 1 1 2
San Francisco 0 0 0
Santa Barbara 5 0 5
Santa Cruz 1 5 6
Other - UC 3 4 7
Other-Network UC n/a 17 17
_______ ______ _____
62 98 160
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 17 886
2-4 a.m. 2 4 29
4-6 a.m. 2 2 36
6-8 a.m. 2 4 27
8-10 a.m. 10 20 112
10-12 a.m. 33 53 450
12-2 p.m. 29 82 522
2-4 p.m. 30 73 320
4-6 p.m. 23 62 250
6-8 p.m. 13 26 240
8-10 p.m. 5 7 25
10-12 p.m. 6 23 19
__________ __________ __________ _________________
Total: 160 373 2,916
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 36 125 161
Davis 29 0 29
Irvine 57 0 57
Los Angeles 2 31 33
Riverside 3 0 3
San Diego 0 1 1
San Francisco 0 0 0
Santa Barbara 7 0 7
Santa Cruz 2 8 10
Other - UC 6 13 19
Other-Network UC n/a 53 53
_______ ______ _____
142 231 373
Number of FIND commands by database
WorldCat 0
Art Index 48
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 325
RILM Index 0
Total number of FIND commands 373
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 117 894 1,011
Davis 87 0 87
Irvine 184 0 184
Los Angeles 33 214 247
Riverside 5 0 5
San Diego 0 28 28
San Francisco 0 0 0
Santa Barbara 23 0 23
Santa Cruz 0 164 164
Other - UC 84 55 139
Other-Network UC n/a 1,028 1,028
_______ ______ _____
533 2,383 2,916
Number of Records Displayed by database
WorldCat 0
Art Index 203
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,713
RILM Index 0
Total number of Records Displayed 2,916
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 21 13.1%
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 139 86.9%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 12.9%
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 87.1%
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 0.6
Standard deviation in seconds 1.6
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 1.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 1:33
Average session length (minutes:seconds) 4:30
Longest session recorded (minutes:seconds) 22:05
Average number of searches completed per session 2.3
Retrievals per search - median 1.5
Retrievals per search - average 23.0
Retrievals per search - standard deviation 87.9
Percent of searches completed with 0 results 39.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 47 33.1%
DISPLAY (excluding automatic displays) 41 28.9%
HELP 5 3.5%
EXPLAIN 4 2.8%
SET/RESET 10 7.0%
SHOW 2 1.4%
ADD ON (AND, OR, AND NOT) 1 0.7%
LOGON or LOGOFF 25 17.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 7 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 9.4%
SHORT 83.0%
LONG 7.5%
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 13 27.7% 4 30.8% 7 10.6 9.6
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 14 29.8% 7 50.0% 8 6.3 5.1
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 20 42.6% 8 40.0% 13 79.8 167.9
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 47 100% 19 40.4% 8 39.2 113.1
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 5:38
Average session length (minutes:seconds) 17:05
Longest session recorded (minutes:seconds) 139:13
Average number of searches completed per session 2.3
Retrievals per search - median 2.0
Retrievals per search - average 207.5
Retrievals per search - standard deviation 1583.7
Percent of searches completed with 0 results 35.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 320 32.8%
DISPLAY (excluding automatic displays) 296 30.4%
HELP 26 2.7%
EXPLAIN 53 5.4%
SET/RESET 43 4.4%
SHOW 6 0.6%
ADD ON (AND, OR, AND NOT) 5 0.5%
LOGON or LOGOFF 191 19.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 35 3.6%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.9%
SHORT 69.7%
LONG 22.6%
TAGS 0.0%
FIELDS 2.5%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 1.4%
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 89 27.2% 32 36.0% 34 704.8 3526.2
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 92 28.1% 32 34.8% 9 256.8 1029.1
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 48 14.7% 15 31.3% 12 296.0 968.0
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 98 30.0% 38 38.8% 18 31.1 48.2
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 2.5% 4 50.0% 1 1.8 1.5
Single 311 97.5% 109 35.0% 14 332.7 1997.2
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 11.3%
Ten most frequent errors:
1. First word of command is invalid 34.5%
2. NS command - no next screen 23.9%
3. Index invalid in current database 8.5%
4. FIND command with invalid index name 5.6%
5. DISPLAY command contains invalid word 4.2%
6. PS command - no previous screen 3.5%
7. Valid command at an inappropriate time 2.1%
8. 414 2.1%
9. DISPLAY command - no FIND results 1.4%
10. 754 1.4%
11. All others 12.7%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 31.6%
2. LOCATE (Z39.50 DBS) 19.3%
3. DISPLAY (Z39.50 DBS) 14.0%
4. Unrecognized term-reminders off 12.3%
5. GUIDE (ART DB) 3.5%
6. G482 3.5%
7. Unrecognized term 3.5%
8. G297 1.8%
9. G395 1.8%
10. INDEXES (MLA DB) 1.8%
11. All others 7.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.1%
2. DISPLAY command-complete in one screen 20.5%
3. First word of command is invalid 8.0%
4. NS command - no next screen 8.0%
5. FIND command retrieves 1 book 8.0%
6. FIND command with zero results 5.7%
7. 278 4.5%
8. DISPLAY command - last of >1 screen 3.4%
9. SHOW command with invalid modifier 2.3%
10. PS command - no previous screen 2.3%
11. All others 11.4%
Ten most frequent SHOW requests:
1. GLOSSARY 50.0%
2. SEARCH 25.0%
3. HISTORY 12.5%
11. All others 12.5%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)