MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 01/26/02 through 02/01/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 46 54
Davis 16 0 16
Irvine 0 0 0
Los Angeles 2 0 2
Riverside 0 2 2
San Diego 2 0 2
San Francisco 0 0 0
Santa Barbara 5 0 5
Santa Cruz 0 4 4
Other - UC 3 3 6
Other-Network UC n/a 6 6
_______ ______ _____
36 61 97
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 1 1 1
4-6 a.m. 0 0 0
6-8 a.m. 4 14 22
8-10 a.m. 8 23 121
10-12 a.m. 19 37 52
12-2 p.m. 21 43 84
2-4 p.m. 25 50 220
4-6 p.m. 12 16 16
6-8 p.m. 0 0 0
8-10 p.m. 1 2 2
10-12 p.m. 6 21 50
__________ __________ __________ _________________
Total: 97 207 568
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 12 104 116
Davis 34 0 34
Irvine 0 0 0
Los Angeles 5 0 5
Riverside 0 2 2
San Diego 1 0 1
San Francisco 0 0 0
Santa Barbara 16 0 16
Santa Cruz 0 11 11
Other - UC 4 4 8
Other-Network UC n/a 14 14
_______ ______ _____
72 135 207
Number of FIND commands by database
WorldCat 0
Art Index 53
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 154
RILM Index 0
Total number of FIND commands 207
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 22 269 291
Davis 103 0 103
Irvine 0 0 0
Los Angeles 5 0 5
Riverside 0 4 4
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 33 0 33
Santa Cruz 0 44 44
Other - UC 26 0 26
Other-Network UC n/a 62 62
_______ ______ _____
189 379 568
Number of Records Displayed by database
WorldCat 0
Art Index 225
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 343
RILM Index 0
Total number of Records Displayed 568
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 24 24.7%
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 73 75.3%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 25.6%
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 74.4%
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 0.4
Standard deviation in seconds 1.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.4
Standard deviation in seconds 0.7
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:34
Average session length (minutes:seconds) 5:56
Longest session recorded (minutes:seconds) 17:10
Average number of searches completed per session 2.2
Retrievals per search - median 0.0
Retrievals per search - average 26.5
Retrievals per search - standard deviation 74.3
Percent of searches completed with 0 results 50.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 53 35.6%
DISPLAY (excluding automatic displays) 40 26.8%
HELP 7 4.7%
EXPLAIN 6 4.0%
SET/RESET 8 5.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 31 20.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 2.7%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 90.4%
LONG 5.8%
TAGS 0.0%
FIELDS 3.8%
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 23 41.1% 11 47.8% 7 12.2 14.1
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 20 35.7% 12 60.0% 38 78.8 127.4
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 13 23.2% 6 46.2% 48 89.9 129.5
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 3 5.7% 2 66.7% 1 1.0 0.0
Single 50 94.3% 25 50.0% 12 56.1 101.1
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:03
Average session length (minutes:seconds) 14:58
Longest session recorded (minutes:seconds) 109:39
Average number of searches completed per session 2.1
Retrievals per search - median 7.0
Retrievals per search - average 54.3
Retrievals per search - standard deviation 209.8
Percent of searches completed with 0 results 19.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 151 35.9%
DISPLAY (excluding automatic displays) 81 19.2%
HELP 12 2.9%
EXPLAIN 6 1.4%
SET/RESET 18 4.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 3 0.7%
LOGON or LOGOFF 123 29.2%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 27 6.4%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.7%
SHORT 72.0%
LONG 10.3%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 4.7%
COMMENTS 0.0%
Other 8.4%
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 34 22.2% 7 20.6% 27 78.8 146.7
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 42 27.4% 14 33.3% 10 109.0 422.3
SERIES 2 1.3% 2 100% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 18 11.8% 3 16.7% 22 128.2 253.4
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 2.0% 1 33.3% 3 3.0 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 54 35.3% 5 9.3% 11 24.3 43.2
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 3 2.0% 2 66.7% 1 1.0 0.0
Single 147 98.0% 28 19.0% 11 69.7 235.8
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 16.7%
Ten most frequent errors:
1. First word of command is invalid 18.4%
2. NS command - no next screen 14.0%
3. Valid command at an inappropriate time 5.3%
4. FIND command with invalid index name 4.4%
5. DISPLAY command - no FIND results 0.9%
6. DISPLAY command contains invalid word 0.9%
7. PS command - no previous screen 0.9%
8. Search term missing from search command 0.9%
9. SAVE command issued from a Z39.50 db 0.9%
10. 419 0.9%
11. All others 52.6%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 33.3%
2. GUIDE (ART DB) 25.0%
3. Unrecognized term-reminders off 16.7%
4. G293 8.3%
5. LOCATE (Z39.50 DBS) 8.3%
6. LOCATE (Z39.50 DBS) 8.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. MELVYL system could not process command 32.3%
2. Help requested from SET DB command 25.8%
3. First word of command is invalid 16.1%
4. DISPLAY command-complete in one screen 12.9%
5. 3 HELP commands issued from same code 6.5%
6. Valid command at an inappropriate time 3.2%
7. DISPLAY command-first of >1 screen 3.2%
11. All others 0.0%
Ten most frequent SHOW requests:
1. 0.0%
2. 0.0%
3. 0.0%
4. 0.0%
5. 0.0%
6. 0.0%
7. 0.0%
8. 0.0%
9. 0.0%
10. 0.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)