MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 04/27/02 through 05/03/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 30 36 66
Davis 25 0 25
Irvine 11 0 11
Los Angeles 0 9 9
Riverside 0 1 1
San Diego 6 5 11
San Francisco 0 0 0
Santa Barbara 0 1 1
Santa Cruz 0 1 1
Other - UC 0 8 8
Other-Network UC n/a 15 15
_______ ______ _____
72 76 148
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 13 132
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 2 3 30
8-10 a.m. 11 13 36
10-12 a.m. 23 54 216
12-2 p.m. 22 59 277
2-4 p.m. 26 46 375
4-6 p.m. 35 182 815
6-8 p.m. 7 16 89
8-10 p.m. 15 18 199
10-12 p.m. 6 18 442
__________ __________ __________ _________________
Total: 148 422 2,611
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 135 120 255
Davis 62 0 62
Irvine 32 0 32
Los Angeles 0 20 20
Riverside 0 7 7
San Diego 2 6 8
San Francisco 0 0 0
Santa Barbara 0 1 1
Santa Cruz 0 1 1
Other - UC 0 19 19
Other-Network UC n/a 17 17
_______ ______ _____
231 191 422
Number of FIND commands by database
WorldCat 0
Art Index 67
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 355
RILM Index 0
Total number of FIND commands 422
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 744 734 1,478
Davis 397 0 397
Irvine 219 0 219
Los Angeles 0 110 110
Riverside 0 29 29
San Diego 0 49 49
San Francisco 0 0 0
Santa Barbara 0 54 54
Santa Cruz 0 12 12
Other - UC 0 112 112
Other-Network UC n/a 151 151
_______ ______ _____
1,360 1,251 2,611
Number of Records Displayed by database
WorldCat 0
Art Index 313
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,298
RILM Index 0
Total number of Records Displayed 2,611
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 26 17.6%
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 122 82.4%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 15.9%
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 84.1%
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 0.5
Standard deviation in seconds 1.3
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 0.4
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 2:15
Average session length (minutes:seconds) 4:42
Longest session recorded (minutes:seconds) 19:52
Average number of searches completed per session 2.6
Retrievals per search - median 3.0
Retrievals per search - average 75.4
Retrievals per search - standard deviation 289.9
Percent of searches completed with 0 results 37.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 65 32.7%
DISPLAY (excluding automatic displays) 40 20.1%
HELP 13 6.5%
EXPLAIN 20 10.1%
SET/RESET 7 3.5%
SHOW 3 1.5%
ADD ON (AND, OR, AND NOT) 2 1.0%
LOGON or LOGOFF 43 21.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 6 3.0%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 96.2%
LONG 3.8%
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 3 4.6% 2 66.7% 1 1.0 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 19 29.2% 8 42.1% 75 62.1 50.3
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 43 66.2% 15 34.9% 6 152.6 438.8
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 65 100% 25 38.5% 10 124.0 368.8
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:30
Average session length (minutes:seconds) 8:26
Longest session recorded (minutes:seconds) 123:41
Average number of searches completed per session 2.9
Retrievals per search - median 4.0
Retrievals per search - average 64.1
Retrievals per search - standard deviation 472.6
Percent of searches completed with 0 results 26.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 354 38.2%
DISPLAY (excluding automatic displays) 231 24.9%
HELP 30 3.2%
EXPLAIN 40 4.3%
SET/RESET 33 3.6%
SHOW 5 0.5%
ADD ON (AND, OR, AND NOT) 1 0.1%
LOGON or LOGOFF 184 19.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 48 5.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.0%
SHORT 86.1%
LONG 7.6%
TAGS 0.0%
FIELDS 1.0%
PERIODICALS 1.0%
COMMENTS 0.0%
Other 0.3%
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 69 19.1% 22 31.9% 6 75.5 181.5
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 78 21.5% 29 37.2% 4 223.3 1124.6
SERIES 2 0.6% 2 100% 0 0.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 26 7.2% 8 30.8% 6 16.1 22.1
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 1 0.3% 0 0.0% 34 34.0 0.0
PERIODICAL 2 0.6% 0 0.0% 3 3.0 0.0
EXACT PE 1 0.3% 1 100% 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 183 50.6% 37 20.2% 7 54.2 320.7
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 8 2.3% 4 50.0% 8 12.8 14.7
Single 345 97.7% 90 26.1% 7 88.8 555.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 13.3%
Ten most frequent errors:
1. First word of command is invalid 37.0%
2. NS command - no next screen 29.5%
3. FIND command with invalid index name 12.7%
4. Index invalid in current database 4.6%
5. Valid command at an inappropriate time 2.9%
6. SHOW command contains invalid word 2.3%
7. DISPLAY command - no FIND results 1.7%
8. No previous search for BACKUP 1.7%
9. MAIL command not available from this db 1.7%
10. PS command - no previous screen 1.2%
11. All others 4.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ART DB) 26.7%
2. GUIDE: Z39.50 non-A&I DBS w/o truncation 26.7%
3. LOCATE (Z39.50 DBS) 18.3%
4. Unrecognized term-reminders off 13.3%
5. INDEXES (MLA DB) 3.3%
6. LOCATE (Z39.50 DBS) 3.3%
7. DISPLAY (Z39.50 DBS) 1.7%
8. G395 1.7%
9. Unrecognized term 1.7%
10. HELP 1.7%
11. All others 1.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.1%
2. First word of command is invalid 20.4%
3. FIND command with invalid index name 7.8%
4. FIND command with zero results 7.8%
5. FIND command retrieves 1 book 7.8%
6. DISPLAY command-first of >1 screen 5.8%
7. DISPLAY command - last of >1 screen 5.8%
8. PE display complete in one screen 4.9%
9. DISPLAY command - middle of >1 screen 2.9%
10. DISPLAY command-complete in one screen 1.9%
11. All others 4.9%
Ten most frequent SHOW requests:
1. GLOSSARY 37.5%
2. HISTORY 37.5%
3. SEARCH 25.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)