MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 06/01/02 through 06/07/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 35 40
Davis 11 0 11
Irvine 4 0 4
Los Angeles 0 4 4
Riverside 1 0 1
San Diego 3 2 5
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 3 3
Other - UC 0 2 2
Other-Network UC n/a 5 5
_______ ______ _____
24 51 75
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 17 141
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 3 2 3
8-10 a.m. 7 11 14
10-12 a.m. 12 34 303
12-2 p.m. 12 19 215
2-4 p.m. 17 82 486
4-6 p.m. 7 16 129
6-8 p.m. 2 10 60
8-10 p.m. 5 31 97
10-12 p.m. 7 35 129
__________ __________ __________ _________________
Total: 75 257 1,577
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 141 145
Davis 38 0 38
Irvine 29 0 29
Los Angeles 0 5 5
Riverside 0 0 0
San Diego 0 20 20
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 8 8
Other - UC 0 1 1
Other-Network UC n/a 11 11
_______ ______ _____
71 186 257
Number of FIND commands by database
WorldCat 0
Art Index 49
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 208
RILM Index 0
Total number of FIND commands 257
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 13 633 646
Davis 291 0 291
Irvine 203 0 203
Los Angeles 0 8 8
Riverside 0 0 0
San Diego 0 264 264
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 136 136
Other - UC 0 13 13
Other-Network UC n/a 16 16
_______ ______ _____
507 1,070 1,577
Number of Records Displayed by database
WorldCat 0
Art Index 184
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,393
RILM Index 0
Total number of Records Displayed 1,577
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 12 16.0%
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 63 84.0%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 19.1%
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 80.9%
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 0.5
Standard deviation in seconds 1.2
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.5
Standard deviation in seconds 0.4
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:48
Average session length (minutes:seconds) 4:27
Longest session recorded (minutes:seconds) 9:53
Average number of searches completed per session 4.1
Retrievals per search - median 1.0
Retrievals per search - average 8.7
Retrievals per search - standard deviation 20.0
Percent of searches completed with 0 results 42.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 49 41.2%
DISPLAY (excluding automatic displays) 39 32.8%
HELP 5 4.2%
EXPLAIN 2 1.7%
SET/RESET 3 2.5%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 18 15.1%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 3 2.5%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 97.8%
LONG 2.2%
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 26.5% 9 69.2% 6 12.0 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 4 8.2% 2 50.0% 39 38.5 50.2
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 32 65.3% 10 31.3% 4 13.6 24.0
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 49 100% 21 42.9% 4 15.2 24.6
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 4:38
Average session length (minutes:seconds) 7:29
Longest session recorded (minutes:seconds) 30:45
Average number of searches completed per session 3.3
Retrievals per search - median 4.0
Retrievals per search - average 57.8
Retrievals per search - standard deviation 199.9
Percent of searches completed with 0 results 26.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 206 39.0%
DISPLAY (excluding automatic displays) 174 33.0%
HELP 7 1.3%
EXPLAIN 4 0.8%
SET/RESET 28 5.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 2 0.4%
LOGON or LOGOFF 79 15.0%
COMMENT 0 0.0%
USE 2 0.4%
OTHER 26 4.9%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 12.1%
SHORT 64.1%
LONG 21.5%
TAGS 0.0%
FIELDS 0.4%
PERIODICALS 0.4%
COMMENTS 0.0%
Other 1.3%
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 27 13.1% 6 22.2% 15 41.4 85.2
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 62 30.1% 24 38.7% 12 46.2 74.9
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 6 2.9% 3 50.0% 9 632.0 1079.1
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 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 1 0.5% 0 0.0% 2 2.0 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 53.4% 21 19.1% 8 84.3 222.0
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 206 100% 54 26.2% 10 79.1 230.4
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 9.9%
Ten most frequent errors:
1. NS command - no next screen 40.8%
2. First word of command is invalid 36.6%
3. FIND command with invalid index name 5.6%
4. DISPLAY command - no FIND results 4.2%
5. Valid command at an inappropriate time 2.8%
6. DISPLAY command contains invalid word 2.8%
7. Invalid SET DATABASE command issued 1.4%
8. Search term missing from search command 1.4%
9. Index invalid in current database 1.4%
11. All others 2.8%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 33.3%
2. GUIDE (ART DB) 16.7%
3. G395 16.7%
4. LOCATE (Z39.50 DBS) 16.7%
5. LOCATE (Z39.50 DBS) 16.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 44.4%
2. Help requested from SET DB command 33.3%
3. MELVYL system could not process command 5.6%
4. 15 5.6%
5. FIND command retrieves 1 book 5.6%
6. DISPLAY command-complete in one screen 5.6%
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)