MELVYL ABI DATABASE TELNET STATISTICS
Time period: 12/29/01 through 01/04/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 31 31
Davis 7 0 7
Irvine 4 0 4
Los Angeles 0 6 6
Riverside 1 0 1
San Diego 1 4 5
San Francisco 3 0 3
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 42 42
_______ ______ _____
16 84 100
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 22 486
2-4 a.m. 7 15 181
4-6 a.m. 0 0 238
6-8 a.m. 0 0 0
8-10 a.m. 12 23 226
10-12 a.m. 24 53 1,110
12-2 p.m. 7 10 209
2-4 p.m. 8 14 95
4-6 p.m. 9 19 413
6-8 p.m. 10 25 844
8-10 p.m. 4 28 390
10-12 p.m. 12 86 192
__________ __________ __________ _________________
Total: 100 295 4,384
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 0 128 128
Davis 21 0 21
Irvine 20 0 20
Los Angeles 0 27 27
Riverside 1 0 1
San Diego 1 13 14
San Francisco 5 0 5
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 78 78
_______ ______ _____
48 247 295
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 1,418 1,418
Davis 59 0 59
Irvine 343 0 343
Los Angeles 0 359 359
Riverside 2 0 2
San Diego 8 358 366
San Francisco 34 0 34
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 13 13
Other-Network UC n/a 1,790 1,790
_______ ______ _____
446 3,938 4,384
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 0.8
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 11:13
Average session length (minutes:seconds) 43:58
Longest session recorded (minutes:seconds) 813:49
Average number of searches completed per session 3.0
Retrievals per search - median 3.0
Retrievals per search - average 182.1
Retrievals per search - standard deviation 1268.3
Percent of searches completed with 0 results 38.0%
Percent of searches entered that are long 3.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 278 25.9%
DISPLAY (excluding automatic displays) 540 50.3%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 2 0.2%
EXPLAIN 4 0.4%
SET/RESET 56 5.2%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 17 1.6%
LOGON or LOGOFF 111 10.3%
COMMENT 0 0.0%
SAVE 36 3.4%
USE 0 0.0%
OTHER 27 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 87
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 33
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 139 33.7% 89 64.0% 16 28.7 53.8
TITLE WORD 49 11.9% 14 28.6% 11 36.4 60.7
EXACT TITLE 1 0.2% 0 0.0% 1 1.0 0.0
JOURNAL 15 3.6% 2 13.3% 46 394.5 818.0
EXACT JOURNAL 16 3.9% 4 25.0% 172 343.0 451.3
SUBJECT 32 7.7% 11 34.4% 12 178.8 627.6
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 47 11.4% 1 2.1% 72 766.0 3078.8
PUB TYPE 3 0.7% 0 0.0% 889 1038.0 852.3
DATE 19 4.6% 4 21.1% 34 115.4 152.5
ADDED 72 17.4% 72 100% 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 12 2.9% 0 0.0% 15 105.0 163.2
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 6 1.5% 0 0.0% 3 2.7 1.9
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 2 0.5% 1 50.0% 73 73.0 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 128 46.0% 84 65.6% 19 149.5 335.9
Single 150 54.0% 28 18.7% 21 355.6 1938.2
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 1 100% 1 100% 0.0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0.0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.0%
SHORT 88.2%
LONG 0.8%
TAGS 0.0%
FIELDS 2.3%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.7%
COMMENTS 0.0%
Other 4.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 11.2%
Ten most frequent errors:
1. DISPLAY command - no FIND results 54.8%
2. NS command - no next screen 17.0%
3. First word of command is invalid 13.3%
4. DISPLAY command contains invalid word 3.0%
5. DISPLAY command-record numbers too large 2.2%
6. FIND command with invalid index name 2.2%
7. 445 1.5%
8. 19 0.7%
9. Add-on search, no index name after verb 0.7%
10. Single letter keyword search 0.7%
11. All others 3.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 25.0%
2. FIND (ABI DB) 25.0%
3. MAIL 25.0%
4. LOCATE (ARTICLE DBS) 25.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. MAIL command entered w/o email address 33.3%
2. DISPLAY command-complete in one screen 16.7%
3. DISPLAY command - middle of >1 screen 16.7%
4. Help requested from SET DB command 16.7%
5. 445 16.7%
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)