MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/09/01 through 06/15/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 48 52
Davis 9 0 9
Irvine 27 0 27
Los Angeles 0 19 19
Riverside 2 1 3
San Diego 1 12 13
San Francisco 8 0 8
Santa Barbara 0 1 1
Santa Cruz 2 1 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 39 39
_______ ______ _____
53 121 174
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 26 192
2-4 a.m. 3 4 40
4-6 a.m. 1 3 31
6-8 a.m. 1 1 48
8-10 a.m. 16 49 347
10-12 a.m. 34 120 2,890
12-2 p.m. 31 91 688
2-4 p.m. 33 92 890
4-6 p.m. 18 37 621
6-8 p.m. 8 33 287
8-10 p.m. 6 17 192
10-12 p.m. 16 47 945
__________ __________ __________ _________________
Total: 174 520 7,171
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 10 93 103
Davis 19 0 19
Irvine 188 0 188
Los Angeles 0 52 52
Riverside 9 5 14
San Diego 1 22 23
San Francisco 19 0 19
Santa Barbara 0 1 1
Santa Cruz 4 13 17
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 84 84
_______ ______ _____
250 270 520
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 52 1,539 1,591
Davis 114 0 114
Irvine 1,734 0 1,734
Los Angeles 0 2,296 2,296
Riverside 13 29 42
San Diego 0 156 156
San Francisco 297 0 297
Santa Barbara 0 2 2
Santa Cruz 72 124 196
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 743 743
_______ ______ _____
2,282 4,889 7,171
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 1.3
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) 6:45
Average session length (minutes:seconds) 11:10
Longest session recorded (minutes:seconds) 58:20
Average number of searches completed per session 3.0
Retrievals per search - median 4.0
Retrievals per search - average 461.9
Retrievals per search - standard deviation 3291.9
Percent of searches completed with 0 results 27.6%
Percent of searches entered that are long 2.9%
Percent of long searches completed
(includes partial results) 66.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 464 24.5%
DISPLAY (excluding automatic displays) 921 48.7%
BROWSE 5 0.3%
SELECT 0 0.0%
HELP 13 0.7%
EXPLAIN 11 0.6%
SET/RESET 80 4.2%
SHOW 5 0.3%
ADD ON (AND, OR, AND NOT) 56 3.0%
LOGON or LOGOFF 226 12.0%
COMMENT 0 0.0%
SAVE 60 3.2%
USE 0 0.0%
OTHER 55 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 51
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 18
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 153 31.2% 48 31.4% 16 113.2 401.3
TITLE WORD 88 18.0% 27 30.7% 3 40.7 135.5
EXACT TITLE 4 0.8% 1 25.0% 6 5.0 1.7
JOURNAL 4 0.8% 1 25.0% 1,014 19112.7 32204.6
EXACT JOURNAL 8 1.6% 2 25.0% 222 923.5 1614.5
SUBJECT 5 1.0% 1 20.0% 7,682 7323.0 4931.1
EXACT SUBJECT 1 0.2% 1 100% 0 0.0 0.0
KEYWORD 196 40.0% 54 27.6% 15 803.4 3773.1
PUB TYPE 1 0.2% 0 0.0% 27 27.0 0.0
DATE 7 1.4% 2 28.6% 119 172.6 177.0
ADDED 0 0.0% 0 0.0% 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 4 0.8% 0 0.0% 12 31.5 46.9
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 5 1.0% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 6 1.2% 2 33.3% 5 17.3 27.2
EXACT PE 5 1.0% 0 0.0% 1 2.4 1.9
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 0.6% 0 0.0% 303 1528.3 2278.2
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 28 6.1% 14 50.0% 15 363.2 1099.3
Single 433 93.9% 111 25.6% 13 670.3 4113.6
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 5 100% 0 0.0% 5 10.8 15.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.8%
SHORT 93.4%
LONG 0.4%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 1.6%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 6.4%
Ten most frequent errors:
1. NS command - no next screen 31.0%
2. First word of command is invalid 23.3%
3. FIND command with invalid index name 10.1%
4. DISPLAY command contains invalid word 9.3%
5. PS command - no previous screen 6.2%
6. Search term missing from search command 3.1%
7. Valid command at an inappropriate time 2.3%
8. DISPLAY command-record numbers too large 1.6%
9. 733 1.6%
10. Command contains escape or arrow key 1.6%
11. All others 10.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 27.3%
2. LOCATE (ARTICLE DBS) 27.3%
3. INDEXES (ABI DB) 18.2%
4. ABI/INFORM DB 9.1%
5. DISPLAY (ABI DB) 9.1%
6. DATABASES 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 41.7%
2. First word of command is invalid 12.5%
3. FIND command with invalid index name 12.5%
4. DISPLAY command-complete in one screen 8.3%
5. DISPLAY command - last of >1 screen 8.3%
6. NS command - no next screen 4.2%
7. F/BR command with invalid search term 4.2%
8. DISPLAY command-first of >1 screen 4.2%
9. 733 4.2%
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)