MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/29/01 through 01/04/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 9 13
Davis 9 0 9
Irvine 6 0 6
Los Angeles 0 1 1
Riverside 1 0 1
San Diego 1 0 1
San Francisco 0 0 0
Santa Barbara 2 2 4
Santa Cruz 0 2 2
Other - UC 2 0 2
Other-Network UC n/a 11 11
_______ ______ _____
25 25 50
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 5 480
2-4 a.m. 0 0 3
4-6 a.m. 0 0 0
6-8 a.m. 1 2 14
8-10 a.m. 2 9 190
10-12 a.m. 14 27 2,365
12-2 p.m. 8 19 1,082
2-4 p.m. 15 45 304
4-6 p.m. 0 1 12
6-8 p.m. 4 18 156
8-10 p.m. 1 1 0
10-12 p.m. 4 9 46
__________ __________ __________ _________________
Total: 50 136 4,652
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 13 19 32
Davis 31 0 31
Irvine 25 0 25
Los Angeles 0 2 2
Riverside 0 0 0
San Diego 1 0 1
San Francisco 0 0 0
Santa Barbara 8 0 8
Santa Cruz 0 4 4
Other - UC 0 0 0
Other-Network UC n/a 33 33
_______ ______ _____
78 58 136
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 125
RILM Index 0
Total number of FIND commands 136
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 287 126 413
Davis 120 0 120
Irvine 68 0 68
Los Angeles 0 5 5
Riverside 0 0 0
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 2 0 2
Santa Cruz 0 101 101
Other - UC 0 0 0
Other-Network UC n/a 3,943 3,943
_______ ______ _____
477 4,175 4,652
Number of Records Displayed by database
WorldCat 0
Art Index 115
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 4,537
RILM Index 0
Total number of Records Displayed 4,652
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 4 8.0%
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 46 92.0%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 8.1%
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 91.9%
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 0.3
Standard deviation in seconds 0.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 0.7
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 0:37
Average session length (minutes:seconds) 0:37
Longest session recorded (minutes:seconds) 0:37
Average number of searches completed per session 2.8
Retrievals per search - median 1.0
Retrievals per search - average 13.0
Retrievals per search - standard deviation 26.8
Percent of searches completed with 0 results 36.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10 26.3%
DISPLAY (excluding automatic displays) 22 57.9%
HELP 0 0.0%
EXPLAIN 0 0.0%
SET/RESET 3 7.9%
SHOW 1 2.6%
ADD ON (AND, OR, AND NOT) 1 2.6%
LOGON or LOGOFF 2 5.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER -1 0.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 79.2%
LONG 8.3%
TAGS 0.0%
FIELDS 12.5%
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 1 10.0% 0 0.0% 3 3.0 0.0
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 7 70.0% 2 28.6% 2 15.2 30.6
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 2 20.0% 2 100% 0 0.0 0.0
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 10 100% 4 40.0% 2 13.2 27.9
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:39
Average session length (minutes:seconds) 10:48
Longest session recorded (minutes:seconds) 103:04
Average number of searches completed per session 2.7
Retrievals per search - median 3.0
Retrievals per search - average 174.5
Retrievals per search - standard deviation 527.1
Percent of searches completed with 0 results 28.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 123 31.9%
DISPLAY (excluding automatic displays) 150 39.0%
HELP 9 2.3%
EXPLAIN 13 3.4%
SET/RESET 17 4.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 0.5%
LOGON or LOGOFF 59 15.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 12 3.1%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 13.3%
SHORT 68.9%
LONG 16.1%
TAGS 0.0%
FIELDS 0.6%
PERIODICALS 0.6%
COMMENTS 0.0%
Other 0.6%
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 12 9.7% 2 16.7% 14 532.5 830.1
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 51 41.1% 26 51.0% 56 393.5 742.3
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 12 9.7% 2 16.7% 204 567.5 983.8
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 1 0.8% 0 0.0% 2 2.0 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 48 38.7% 5 10.4% 4 27.3 69.8
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 1 0.8% 0 0.0% 198 198.0 0.0
Single 122 99.2% 35 28.7% 7 248.5 618.0
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 9.4%
Ten most frequent errors:
1. First word of command is invalid 36.4%
2. NS command - no next screen 36.4%
3. Valid command at an inappropriate time 11.4%
4. DATE search with unrecognized word 4.5%
5. DISPLAY command-record numbers too large 2.3%
6. DISPLAY command contains invalid word 2.3%
7. PS command - no previous screen 2.3%
8. SAVE command issued from a Z39.50 db 2.3%
9. Command contains escape or arrow key 2.3%
11. All others 0.0%
Ten most frequent EXPLAIN requests:
1. INDEXES (MLA DB) 30.8%
2. LOCATE (Z39.50 DBS) 30.8%
3. GUIDE: Z39.50 non-A&I DBS w/o truncation 15.4%
4. G395 7.7%
5. Unrecognized term-reminders off 7.7%
6. Unrecognized term 7.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.3%
2. First word of command is invalid 18.2%
3. DISPLAY command-complete in one screen 18.2%
4. FIND command with zero results 13.6%
5. Valid command at an inappropriate time 4.5%
6. NS command - no next screen 4.5%
7. DISPLAY command-first of >1 screen 4.5%
8. DISPLAY command - middle of >1 screen 4.5%
9. PE display complete in one screen 4.5%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)