MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS
Time period: 05/04/02 through 05/10/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Location Library Remote Total
________ _______ ______ _____
Berkeley 27 53 80
Davis 15 0 15
Irvine 1 0 1
Los Angeles 0 3 3
Riverside 0 1 1
San Diego 5 1 6
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 2 3 5
Other - UC 0 7 7
Other-Network UC n/a 6 6
_______ ______ _____
50 74 124
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 21 65
2-4 a.m. 0 0 0
4-6 a.m. 1 0 0
6-8 a.m. 3 10 109
8-10 a.m. 12 24 185
10-12 a.m. 19 54 338
12-2 p.m. 20 146 719
2-4 p.m. 32 97 581
4-6 p.m. 25 95 420
6-8 p.m. 8 8 376
8-10 p.m. 1 2 19
10-12 p.m. 1 1 74
__________ __________ __________ _________________
Total: 124 458 2,886
1.2 FIND commands
__________________
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 133 240 373
Davis 36 0 36
Irvine 6 0 6
Los Angeles 0 6 6
Riverside 0 3 3
San Diego 0 1 1
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 4 5 9
Other - UC 0 8 8
Other-Network UC n/a 16 16
_______ ______ _____
179 279 458
Number of FIND commands by database
WorldCat 0
Art Index 33
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 425
RILM Index 0
Total number of FIND commands 458
1.3 Records displayed
______________________
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 666 1,541 2,207
Davis 365 0 365
Irvine 91 0 91
Los Angeles 0 52 52
Riverside 0 3 3
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 49 15 64
Other - UC 0 4 4
Other-Network UC n/a 100 100
_______ ______ _____
1,171 1,715 2,886
Number of Records Displayed by database
WorldCat 0
Art Index 293
ArticleFirst 0
ContentsFirst 0
ERIC 0
GPO 0
PapersFirst Index 0
ProceedingsFirst Index 0
SocAbstracts 0
PAIS International 0
MLA Bibliography 2,593
RILM Index 0
Total number of Records Displayed 2,886
1.4 Relative Use of Databases
______________________________
Relative use of OCLC-Z39.50 databases: Sessions Percentage
WorldCat 0 0.0%
Art Index 19 15.3%
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 105 84.7%
RILM Index 0 0.0%
Percent of searches done in the WCAT database 0.0%
Percent of searches done in the ART database 7.2%
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 92.8%
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 0.7
Standard deviation in seconds 2.3
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) 2:38
Average session length (minutes:seconds) 21:25
Longest session recorded (minutes:seconds) 257:44
Average number of searches completed per session 1.7
Retrievals per search - median 1.0
Retrievals per search - average 46.7
Retrievals per search - standard deviation 86.2
Percent of searches completed with 0 results 39.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 31 34.8%
DISPLAY (excluding automatic displays) 11 12.4%
HELP 1 1.1%
EXPLAIN 7 7.9%
SET/RESET 5 5.6%
SHOW 1 1.1%
ADD ON (AND, OR, AND NOT) 2 2.2%
LOGON or LOGOFF 29 32.6%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 2 2.2%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 5.3%
SHORT 84.2%
LONG 10.5%
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 11 35.5% 7 63.6% 174 134.3 86.3
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 12 38.7% 4 33.3% 13 76.6 115.6
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 8 25.8% 2 25.0% 6 50.7 102.3
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 31 100% 13 41.9% 16 80.8 104.4
2.2 MLA Bibliography Database Statistics
_________________________________________
Median session length (minutes:seconds) 3:28
Average session length (minutes:seconds) 11:51
Longest session recorded (minutes:seconds) 424:05
Average number of searches completed per session 4.0
Retrievals per search - median 3.0
Retrievals per search - average 195.0
Retrievals per search - standard deviation 2780.3
Percent of searches completed with 0 results 32.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 425 44.2%
DISPLAY (excluding automatic displays) 252 26.2%
HELP 18 1.9%
EXPLAIN 21 2.2%
SET/RESET 30 3.1%
SHOW 7 0.7%
ADD ON (AND, OR, AND NOT) 0 0.0%
LOGON or LOGOFF 162 16.9%
COMMENT 0 0.0%
USE 0 0.0%
OTHER 46 4.8%
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.6%
SHORT 92.4%
LONG 4.8%
TAGS 0.0%
FIELDS 0.0%
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 92 21.3% 47 51.1% 16 197.5 589.6
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 65 15.0% 23 35.4% 7 246.2 1202.6
SERIES 1 0.2% 0 0.0% 181 181.0 0.0
EXACT SERIES 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 24 5.6% 4 16.7% 16 114.5 216.2
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 0.2% 0 0.0% 15 15.0 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 249 57.6% 68 27.3% 7 335.9 4201.7
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 9 2.1% 4 44.4% 4 4.6 4.2
Single 414 97.9% 134 32.4% 8 294.5 3415.1
3.0 Error, EXPLAIN and HELP statistics (All OCLC-Z39.50 databases)
___________________________________________________________________
Percent of commands that contained errors 11.6%
Ten most frequent errors:
1. First word of command is invalid 40.6%
2. NS command - no next screen 19.6%
3. FIND command with invalid index name 19.6%
4. Search term missing from search command 4.3%
5. Valid command at an inappropriate time 2.9%
6. PS command - no previous screen 2.9%
7. Index invalid in current database 2.9%
8. SHOW command contains invalid word 0.7%
9. DISPLAY command - no FIND results 0.7%
10. DISPLAY command contains invalid word 0.7%
11. All others 5.1%
Ten most frequent EXPLAIN requests:
1. GUIDE: Z39.50 non-A&I DBS w/o truncation 39.3%
2. Unrecognized term-reminders off 17.9%
3. GUIDE (ART DB) 10.7%
4. DISPLAY (Z39.50 DBS) 7.1%
5. LOCATE (Z39.50 DBS) 7.1%
6. G293 3.6%
7. G395 3.6%
8. INDEXES (MLA DB) 3.6%
9. LOCATE (Z39.50 DBS) 3.6%
10. Unrecognized term 3.6%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 46.8%
2. First word of command is invalid 21.3%
3. FIND command with invalid index name 10.6%
4. FIND command retrieves 1 book 4.3%
5. DISPLAY command-first of >1 screen 4.3%
6. MELVYL system could not process command 2.1%
7. Help requested from SHOW SEARCH 2.1%
8. 232 2.1%
9. FIND command retrieves >1 book 2.1%
10. DISPLAY command-complete in one screen 2.1%
11. All others 2.1%
Ten most frequent SHOW requests:
1. SEARCH 37.5%
2. GLOSSARY 25.0%
3. SYSTEM NEWS 12.5%
4. SYSTEM1 NEWS 12.5%
5. HISTORY 12.5%
11. All others 0.0%
OCLmm/dd oclc MELVYL OCLC-Z39.50 DATABASES TELNET STATISTICS (weekly)