MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 04/13/02 through 04/19/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 28 51 79
Davis 14 0 14
Irvine 3 0 3
Los Angeles 0 2 2
Riverside 0 4 4
San Diego 2 0 2
San Francisco 0 0 0
Santa Barbara 0 1 1
Santa Cruz 2 1 3
Other - UC 0 5 5
Other-Network UC n/a 12 12
_______ ______ _____
49 76 125
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 2 21
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 4 18 55
8-10 a.m. 16 37 156
10-12 a.m. 10 31 423
12-2 p.m. 21 73 1,114
2-4 p.m. 23 73 736
4-6 p.m. 27 85 497
6-8 p.m. 8 8 27
8-10 p.m. 7 29 153
10-12 p.m. 7 9 118
__________ __________ __________ _________________
Total: 125 365 3,300
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 98 143 241
Davis 44 0 44
Irvine 7 0 7
Los Angeles 0 4 4
Riverside 0 4 4
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 0 1 1
Santa Cruz 1 10 11
Other - UC 0 5 5
Other-Network UC n/a 48 48
_______ ______ _____
150 215 365
Number of FIND commands by database
WorldCat 0
Art Index 101
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 264
RILM Index 0
Total number of FIND commands 365
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 629 1,566 2,195
Davis 507 0 507
Irvine 20 0 20
Los Angeles 0 0 0
Riverside 0 10 10
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 0 2 2
Santa Cruz 4 93 97
Other - UC 0 91 91
Other-Network UC n/a 378 378
_______ ______ _____
1,160 2,140 3,300
Number of Records Displayed by database
WorldCat 0
Art Index 1,420
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 1,880
RILM Index 0
Total number of Records Displayed 3,300
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 33 26.4%
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 92 73.6%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 27.7%
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 72.3%
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 1.2
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.4
Standard deviation in seconds 0.4
2.1 Art Index Database Statistics
__________________________________
Median session length (minutes:seconds) 3:42
Average session length (minutes:seconds) 12:42
Longest session recorded (minutes:seconds) 116:55
Average number of searches completed per session 3.1
Retrievals per search - median 8.0
Retrievals per search - average 71.7
Retrievals per search - standard deviation 104.6
Percent of searches completed with 0 results 33.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 99 28.1%
DISPLAY (excluding automatic displays) 117 33.2%
HELP 23 6.5%
EXPLAIN 28 8.0%
SET/RESET 4 1.1%
SHOW 5 1.4%
ADD ON (AND, OR, AND NOT) 2 0.6%
LOGON or LOGOFF 59 16.8%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 15 4.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.7%
SHORT 94.1%
LONG 2.9%
TAGS 0.0%
FIELDS 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 2.2%
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 11 10.8% 3 27.3% 7 5.9 2.9
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 80 78.4% 28 35.0% 125 130.6 114.3
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 11 10.8% 2 18.2% 33 83.2 84.7
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 3 3.0% 1 33.3% 172 172.0 0.0
Single 96 97.0% 31 32.3% 125 106.2 113.4
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:04
Average session length (minutes:seconds) 8:09
Longest session recorded (minutes:seconds) 149:54
Average number of searches completed per session 2.9
Retrievals per search - median 2.0
Retrievals per search - average 39.2
Retrievals per search - standard deviation 253.6
Percent of searches completed with 0 results 35.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 259 41.4%
DISPLAY (excluding automatic displays) 144 23.0%
HELP 11 1.8%
EXPLAIN 17 2.7%
SET/RESET 29 4.6%
SHOW 5 0.8%
ADD ON (AND, OR, AND NOT) 5 0.8%
LOGON or LOGOFF 129 20.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 27 4.3%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.6%
SHORT 91.8%
LONG 3.1%
TAGS 0.0%
FIELDS 1.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 0.5%
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 42 16.0% 13 30.9% 20 76.9 143.4
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 105 39.9% 44 41.9% 3 24.8 47.7
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 29 11.0% 13 44.8% 10 333.1 984.9
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 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 87 33.1% 21 24.1% 12 20.0 25.8
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 4 1.5% 1 25.0% 6 15.3 20.6
Single 255 98.5% 89 34.9% 8 62.0 317.9
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 14.3%
Ten most frequent errors:
1. First word of command is invalid 46.6%
2. NS command - no next screen 17.8%
3. FIND command with invalid index name 9.2%
4. Search term missing from search command 3.7%
5. PS command - no previous screen 3.1%
6. DISPLAY command contains invalid word 2.5%
7. Index invalid in current database 2.5%
8. DISPLAY command - no FIND results 1.8%
9. 956 1.8%
10. Valid command at an inappropriate time 1.2%
11. All others 9.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ART DB) 26.7%
2. Unrecognized term-reminders off 26.7%
3. LOCATE (Z39.50 DBS) 13.3%
4. GUIDE: Z39.50 non-A&I DBS w/o truncation 13.3%
5. G293 4.4%
6. LOCATE (Z39.50 DBS) 4.4%
7. LOCATIONS 2.2%
8. INDEXES (MLA DB) 2.2%
9. G399 2.2%
10. Unrecognized term 2.2%
11. All others 2.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 31.6%
2. First word of command is invalid 20.3%
3. DISPLAY command-complete in one screen 11.4%
4. F/BR with index invalid in current DB 7.6%
5. DISPLAY command - no FIND results 6.3%
6. 278 5.1%
7. FIND command with invalid index name 3.8%
8. DISPLAY command-first of >1 screen 2.5%
9. DISPLAY command - middle of >1 screen 2.5%
10. DISPLAY command - last of >1 screen 2.5%
11. All others 6.3%
Ten most frequent SHOW requests:
1. GLOSSARY 60.0%
2. HISTORY 20.0%
3. 0415 10.0%
4. SEARCH 10.0%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)