MELVYL ABI DATABASE TELNET STATISTICS
Time period: 08/18/01 through 08/24/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 29 31
Davis 20 0 20
Irvine 20 0 20
Los Angeles 0 19 19
Riverside 9 0 9
San Diego 1 12 13
San Francisco 6 0 6
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 5 1 6
Other-Network UC n/a 40 40
_______ ______ _____
63 102 165
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 22 141
2-4 a.m. 1 2 8
4-6 a.m. 0 0 0
6-8 a.m. 2 8 146
8-10 a.m. 18 55 397
10-12 a.m. 29 71 265
12-2 p.m. 34 108 866
2-4 p.m. 41 148 1,180
4-6 p.m. 22 65 1,134
6-8 p.m. 6 13 246
8-10 p.m. 2 20 74
10-12 p.m. 2 15 191
__________ __________ __________ _________________
Total: 165 527 4,648
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 41 99 140
Davis 70 1 71
Irvine 61 0 61
Los Angeles 0 59 59
Riverside 9 0 9
San Diego 2 40 42
San Francisco 11 0 11
Santa Barbara 5 0 5
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 5 5
Los Alamos 0 0 0
Other - UC 6 2 8
Other-Network UC n/a 116 116
_______ ______ _____
205 322 527
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 225 1,033 1,258
Davis 722 1 723
Irvine 321 0 321
Los Angeles 0 721 721
Riverside 75 0 75
San Diego 7 445 452
San Francisco 120 0 120
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 32 7 39
Other-Network UC n/a 932 932
_______ ______ _____
1,502 3,146 4,648
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.3
Standard deviation in seconds 0.5
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) 7:06
Average session length (minutes:seconds) 11:36
Longest session recorded (minutes:seconds) 80:11
Average number of searches completed per session 3.2
Retrievals per search - median 4.0
Retrievals per search - average 707.4
Retrievals per search - standard deviation 4419.2
Percent of searches completed with 0 results 31.2%
Percent of searches entered that are long 3.0%
Percent of long searches completed
(includes partial results) 56.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 493 33.1%
DISPLAY (excluding automatic displays) 568 38.1%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 13 0.9%
EXPLAIN 31 2.1%
SET/RESET 90 6.0%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 34 2.3%
LOGON or LOGOFF 184 12.3%
COMMENT 0 0.0%
SAVE 40 2.7%
USE 0 0.0%
OTHER 37 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 31
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 157 28.9% 42 26.8% 11 175.7 1231.4
TITLE WORD 112 20.6% 48 42.9% 12 25.5 40.1
EXACT TITLE 6 1.1% 3 50.0% 8 6.0 4.4
JOURNAL 22 4.0% 10 45.5% 418 2174.6 5571.5
EXACT JOURNAL 18 3.3% 7 38.9% 1,058 3280.2 5696.3
SUBJECT 62 11.4% 31 50.0% 286 5334.0 14444.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 89 16.4% 25 28.1% 44 1480.3 5320.6
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 25 4.6% 6 24.0% 22 557.9 2203.9
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 3 0.6% 0 0.0% 49 5701.3 9790.1
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 2 0.4% 0 0.0% 105 104.5 143.5
PERIODICAL 29 5.3% 2 6.9% 3 14.8 30.3
EXACT PE 17 3.1% 0 0.0% 3 6.1 7.3
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 0.4% 0 0.0% 269 268.5 378.3
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 58 11.9% 20 34.5% 7 301.5 1561.4
Single 428 88.1% 134 31.3% 17 1191.0 5801.3
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 4.0%
SHORT 83.9%
LONG 0.3%
TAGS 0.0%
FIELDS 0.6%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 8.3%
COMMENTS 0.0%
Other 3.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 11.0%
Ten most frequent errors:
1. NS command - no next screen 42.7%
2. First word of command is invalid 23.2%
3. FIND command with invalid index name 8.6%
4. DISPLAY command - no FIND results 4.9%
5. DISPLAY command contains invalid word 3.8%
6. Valid command at an inappropriate time 2.7%
7. Search term missing from search command 2.2%
8. BROWSE command with invalid index name 1.1%
9. 414 1.1%
10. Index invalid in current database 1.1%
11. All others 8.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 22.6%
2. FIND (ABI DB) 19.4%
3. B034 12.9%
4. COMMANDS (ABI/PSY DBS) 9.7%
5. ABI/INFORM DB 6.5%
6. ABI TEXT 6.5%
7. INDEXES (ABI DB) 3.2%
8. B121 3.2%
9. LOCATE (ARTICLE DBS) 3.2%
10. G175 3.2%
11. All others 9.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.5%
2. FIND command with zero results 13.6%
3. First word of command is invalid 11.4%
4. 285 6.8%
5. NS of SHOW/EXP command-no next screen 6.8%
6. DISPLAY command - no FIND results 4.5%
7. FIND command with invalid index name 4.5%
8. DISPLAY command-first of >1 screen 4.5%
9. Multi-index search with zero results 4.5%
10. NS command - no next screen 2.3%
11. All others 11.4%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)