MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/30/01 through 07/06/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 33 38
Davis 13 0 13
Irvine 18 0 18
Los Angeles 0 13 13
Riverside 1 0 1
San Diego 6 3 9
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 2 2
Other-Network UC n/a 39 39
_______ ______ _____
46 90 136
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 23 291
2-4 a.m. 0 0 0
4-6 a.m. 2 14 57
6-8 a.m. 6 7 84
8-10 a.m. 10 30 187
10-12 a.m. 27 62 244
12-2 p.m. 36 125 1,306
2-4 p.m. 27 139 1,784
4-6 p.m. 11 27 143
6-8 p.m. 6 7 174
8-10 p.m. 4 7 146
10-12 p.m. 3 8 37
__________ __________ __________ _________________
Total: 136 449 4,453
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 33 107 140
Davis 49 0 49
Irvine 61 0 61
Los Angeles 0 32 32
Riverside 1 0 1
San Diego 22 13 35
San Francisco 7 0 7
Santa Barbara 0 0 0
Santa Cruz 10 0 10
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 5 5
Other-Network UC n/a 109 109
_______ ______ _____
183 266 449
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 452 988 1,440
Davis 311 0 311
Irvine 807 0 807
Los Angeles 0 326 326
Riverside 49 0 49
San Diego 66 66 132
San Francisco 69 0 69
Santa Barbara 0 0 0
Santa Cruz 70 0 70
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 45 45
Other-Network UC n/a 1,204 1,204
_______ ______ _____
1,824 2,629 4,453
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
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 0.1
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 7:01
Average session length (minutes:seconds) 10:56
Longest session recorded (minutes:seconds) 67:42
Average number of searches completed per session 3.2
Retrievals per search - median 14.0
Retrievals per search - average 547.2
Retrievals per search - standard deviation 1814.8
Percent of searches completed with 0 results 18.8%
Percent of searches entered that are long 3.3%
Percent of long searches completed
(includes partial results) 46.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 387 27.8%
DISPLAY (excluding automatic displays) 625 44.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 7 0.5%
EXPLAIN 16 1.2%
SET/RESET 37 2.7%
SHOW 6 0.4%
ADD ON (AND, OR, AND NOT) 62 4.5%
LOGON or LOGOFF 202 14.5%
COMMENT 0 0.0%
SAVE 4 0.3%
USE 0 0.0%
OTHER 45 3.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 43
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 3
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 122 29.6% 22 18.0% 15 90.2 245.4
TITLE WORD 61 14.8% 22 36.1% 9 345.2 1838.2
EXACT TITLE 5 1.2% 1 20.0% 68 74.8 84.8
JOURNAL 13 3.2% 2 15.4% 55 433.5 685.0
EXACT JOURNAL 15 3.6% 4 26.7% 4,127 4433.7 4415.0
SUBJECT 8 1.9% 3 37.5% 616 3757.6 4995.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 143 34.7% 18 12.6% 55 618.4 1496.4
PUB TYPE 9 2.2% 0 0.0% 61 983.8 1934.4
DATE 4 1.0% 1 25.0% 4 126.7 215.1
ADDED 3 0.7% 0 0.0% 10,315 7771.3 4405.8
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 2 0.5% 1 50.0% 685 685.0 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 10 2.4% 1 10.0% 659 753.6 652.1
PERIODICAL 11 2.7% 4 36.4% 10 25.3 46.2
EXACT PE 3 0.7% 0 0.0% 2 10.0 14.7
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 3 0.7% 0 0.0% 10,315 7127.0 5521.8
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 31 8.2% 6 19.4% 55 870.8 2521.8
Single 349 91.8% 67 19.2% 27 675.3 1945.0
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 0 0.0% 0 0.0% 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 8.8%
SHORT 85.3%
LONG 0.6%
TAGS 0.0%
FIELDS 2.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.8%
COMMENTS 0.0%
Other 1.6%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 6.3%
Ten most frequent errors:
1. NS command - no next screen 39.4%
2. First word of command is invalid 31.9%
3. DISPLAY command contains invalid word 8.5%
4. FIND command with invalid index name 7.4%
5. Valid command at an inappropriate time 3.2%
6. 1243 2.1%
7. DISPLAY command - no FIND results 1.1%
8. DISPLAY command-record numbers too large 1.1%
9. PS command - no previous screen 1.1%
10. AT command with invalid library name 1.1%
11. All others 3.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 18.8%
2. FIND (ABI DB) 18.8%
3. Unrecognized term 18.8%
4. MAIL 12.5%
5. ABI/INFORM DB 6.3%
6. INDEXES (ABI DB) 6.3%
7. COMMANDS (ABI/PSY DBS) 6.3%
8. 1211 6.3%
9. DATABASES 6.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 39.1%
2. FIND command with zero results 17.4%
3. DISPLAY command - last of >1 screen 13.0%
4. FIND command retrieves 1 book 8.7%
5. First word of command is invalid 4.3%
6. FIND command retrieves >1 book 4.3%
7. DISPLAY command-complete in one screen 4.3%
8. DISPLAY command-first of >1 screen 4.3%
9. DISPLAY command - middle of >1 screen 4.3%
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)