MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/25/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 27 32
Davis 7 0 7
Irvine 4 0 4
Los Angeles 1 6 7
Riverside 0 1 1
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 2 0 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 18 18
_______ ______ _____
19 55 74
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 0 0 0
4-6 a.m. 1 3 0
6-8 a.m. 4 4 14
8-10 a.m. 6 23 711
10-12 a.m. 10 13 60
12-2 p.m. 15 96 1,079
2-4 p.m. 16 47 633
4-6 p.m. 12 27 792
6-8 p.m. 0 0 0
8-10 p.m. 3 5 22
10-12 p.m. 7 52 24
__________ __________ __________ _________________
Total: 74 270 3,335
1.2 FIND commands
__________________
Zero results may indicate no access to the database
Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 17 150 167
Davis 13 0 13
Irvine 5 0 5
Los Angeles 3 13 16
Riverside 0 1 1
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 8 0 8
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 0 13 13
Other-Network UC n/a 40 40
_______ ______ _____
46 224 270
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 221 1,673 1,894
Davis 47 0 47
Irvine 31 0 31
Los Angeles 9 438 447
Riverside 0 0 0
San Diego 0 0 0
San Francisco 0 0 0
Santa Barbara 20 0 20
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 107 107
Los Alamos 0 0 0
Other - UC 0 26 26
Other-Network UC n/a 763 763
_______ ______ _____
328 3,007 3,335
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.1
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 3:50
Average session length (minutes:seconds) 14:12
Longest session recorded (minutes:seconds) 195:31
Average number of searches completed per session 3.6
Retrievals per search - median 3.0
Retrievals per search - average 809.1
Retrievals per search - standard deviation 4581.4
Percent of searches completed with 0 results 40.3%
Percent of searches entered that are long 3.3%
Percent of long searches completed
(includes partial results) 77.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 245 25.3%
DISPLAY (excluding automatic displays) 527 54.3%
BROWSE 12 1.2%
SELECT 5 0.5%
HELP 7 0.7%
EXPLAIN 15 1.5%
SET/RESET 30 3.1%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 22 2.3%
LOGON or LOGOFF 89 9.2%
COMMENT 0 0.0%
SAVE 0 0.0%
USE 1 0.1%
OTHER 31 3.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 33
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 1
displays or when any of these paging options is set.
TEXT included with MAIL commands 0
SET DISPLAY TEXT commands 0
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 97 31.4% 65 67.0% 12 23.5 32.0
TITLE WORD 34 11.0% 18 52.9% 3 7.2 10.1
EXACT TITLE 4 1.3% 2 50.0% 6 6.0 4.2
JOURNAL 2 0.6% 1 50.0% 1,497 1497.0 0.0
EXACT JOURNAL 1 0.3% 0 0.0% 26,381 26381.0 0.0
SUBJECT 14 4.5% 9 64.3% 194 11692.0 22133.3
EXACT SUBJECT 3 1.0% 3 100% 0 0.0 0.0
KEYWORD 93 30.1% 10 10.8% 59 1485.7 5223.9
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 6 1.9% 1 16.7% 152 486.0 638.0
ADDED 48 15.5% 48 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 0 0.0% 0 0.0% 0 0.0 0.0
EX COMPANY NAME 0 0.0% 0 0.0% 0 0.0 0.0
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 7 2.3% 1 14.3% 11 22.5 25.6
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 0 0.0% 0 0.0% 0 0.0 0.0
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 66 27.2% 57 86.4% 7 271.9 517.7
Single 177 72.8% 44 24.9% 20 1565.4 6415.8
BROWSEs completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. BROWSEs No. Index Median Avg. Dev.
______ _______ ______ _______ ______ _______ _______
By index:
SUBJECT 12 100% 5 41.7% 4 5.3 3.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.6%
SHORT 92.3%
LONG 1.1%
TAGS 0.0%
FIELDS 0.7%
BROWSE REVIEW 0.4%
BROWSE LONG 0.0%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 1.8%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.7%
Ten most frequent errors:
1. DISPLAY command - no FIND results 53.8%
2. First word of command is invalid 16.1%
3. NS command - no next screen 15.1%
4. PS command - no previous screen 4.3%
5. Invalid SET DATABASE command issued 2.2%
6. Add-on search, no index name after verb 2.2%
7. Valid command at an inappropriate time 1.1%
8. SET DB command entered w/o modifier 1.1%
9. DISPLAY command-record numbers too large 1.1%
10. FIND command with invalid index name 1.1%
11. All others 2.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.0%
2. LOCATE (ARTICLE DBS) 13.3%
3. INDEXES (ABI DB) 6.7%
4. FIND (ABI DB) 6.7%
5. COMMANDS (ABI/PSY DBS) 6.7%
6. PUBLICATION TYPES (ABI DB) 6.7%
7. DISPLAY (ABI DB) 6.7%
8. Unrecognized term 6.7%
9. 1086 6.7%
10. 1212 6.7%
11. All others 13.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.3%
2. NS command - no next screen 18.2%
3. First word of command is invalid 13.6%
4. DISPLAY command-complete in one screen 9.1%
5. DISPLAY command-first of >1 screen 9.1%
6. DISPLAY command - middle of >1 screen 9.1%
7. 15 4.5%
8. FIND command with zero results 4.5%
9. FIND command retrieves >1 book 4.5%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)