MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 12/15/01 through 12/21/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 9 46 55
Davis 2 0 2
Irvine 17 0 17
Los Angeles 0 1 1
Riverside 1 1 2
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 4 4 8
Santa Cruz 0 2 2
Other - UC 0 1 1
Other-Network UC n/a 6 6
_______ ______ _____
33 61 94
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 5 12 56
4-6 a.m. 0 0 0
6-8 a.m. 1 0 0
8-10 a.m. 14 120 435
10-12 a.m. 10 88 263
12-2 p.m. 18 93 455
2-4 p.m. 19 103 1,912
4-6 p.m. 14 38 306
6-8 p.m. 7 17 91
8-10 p.m. 5 16 100
10-12 p.m. 1 1 4
__________ __________ __________ _________________
Total: 94 488 3,622
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 15 117 132
Davis 4 0 4
Irvine 290 0 290
Los Angeles 0 3 3
Riverside 0 4 4
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 10 16 26
Santa Cruz 0 10 10
Other - UC 0 2 2
Other-Network UC n/a 17 17
_______ ______ _____
319 169 488
Number of FIND commands by database
WorldCat 0
Art Index 20
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 468
RILM Index 0
Total number of FIND commands 488
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 224 852 1,076
Davis 15 0 15
Irvine 803 0 803
Los Angeles 0 4 4
Riverside 0 2 2
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 49 83 132
Santa Cruz 0 17 17
Other - UC 0 0 0
Other-Network UC n/a 1,573 1,573
_______ ______ _____
1,091 2,531 3,622
Number of Records Displayed by database
WorldCat 0
Art Index 121
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 3,501
RILM Index 0
Total number of Records Displayed 3,622
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 11 11.7%
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 83 88.3%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 4.1%
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 95.9%
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 1.5
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.6
Standard deviation in seconds 0.5
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 4:50
Average session length (minutes:seconds) 9:29
Longest session recorded (minutes:seconds) 28:53
Average number of searches completed per session 1.8
Retrievals per search - median 1.0
Retrievals per search - average 34.9
Retrievals per search - standard deviation 107.9
Percent of searches completed with 0 results 40.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 20 26.7%
DISPLAY (excluding automatic displays) 29 38.7%
HELP 1 1.3%
EXPLAIN 2 2.7%
SET/RESET 8 10.7%
SHOW 1 1.3%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 10 13.3%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 4 5.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.0%
SHORT 97.4%
LONG 2.6%
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 2 10.0% 2 100% 0 0.0 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 35.0% 1 14.3% 12 25.8 34.2
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 11 55.0% 5 45.5% 1 90.5 193.1
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 20 100% 8 40.0% 3 58.2 136.5
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 11:10
Average session length (minutes:seconds) 25:56
Longest session recorded (minutes:seconds) 172:19
Average number of searches completed per session 5.6
Retrievals per search - median 3.0
Retrievals per search - average 295.4
Retrievals per search - standard deviation 4279.6
Percent of searches completed with 0 results 22.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 427 43.3%
DISPLAY (excluding automatic displays) 312 31.6%
HELP 4 0.4%
EXPLAIN 4 0.4%
SET/RESET 56 5.7%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 41 4.2%
LOGON or LOGOFF 105 10.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 38 3.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 11.6%
SHORT 82.8%
LONG 2.7%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 1.6%
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 20 4.4% 3 15.0% 47 1977.6 6319.6
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 226 49.4% 59 26.1% 2 35.9 171.3
SERIES 4 0.9% 3 75.0% 179 179.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 4 0.9% 1 25.0% 17 177.3 290.8
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 7 1.5% 0 0.0% 3 4.6 5.7
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 196 42.9% 40 20.4% 10 616.6 7104.5
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 30 7.0% 10 33.3% 17 41.8 63.3
Single 397 93.0% 86 21.7% 4 433.7 5247.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 8.4%
Ten most frequent errors:
1. NS command - no next screen 40.8%
2. First word of command is invalid 25.5%
3. FIND command with invalid index name 11.2%
4. DISPLAY command - no FIND results 4.1%
5. Index invalid in current database 4.1%
6. 97 3.1%
7. SAVE command issued from a Z39.50 db 2.0%
8. 956 2.0%
9. Valid command at an inappropriate time 1.0%
10. DISPLAY command contains invalid word 1.0%
11. All others 5.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ART DB) 33.3%
2. G482 16.7%
3. G824 16.7%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 16.7%
5. 1216 16.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command retrieves 1 book 27.3%
2. Help requested from SET DB command 27.3%
3. First word of command is invalid 18.2%
4. FIND command with invalid index name 18.2%
5. Valid command at an inappropriate time 9.1%
11. All others 0.0%
Ten most frequent SHOW requests:
1. SYSTEM NEWS 100%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)