MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/04/02 through 05/10/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 33 34
Davis 18 0 18
Irvine 8 0 8
Los Angeles 0 14 14
Riverside 0 1 1
San Diego 0 6 6
San Francisco 0 0 0
Santa Barbara 1 0 1
Santa Cruz 1 1 2
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 21 21
_______ ______ _____
29 81 110
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 50 25
2-4 a.m. 0 0 0
4-6 a.m. 1 12 5
6-8 a.m. 3 3 20
8-10 a.m. 15 29 197
10-12 a.m. 27 61 544
12-2 p.m. 16 34 236
2-4 p.m. 24 57 595
4-6 p.m. 7 16 38
6-8 p.m. 2 4 42
8-10 p.m. 3 16 70
10-12 p.m. 8 38 325
__________ __________ __________ _________________
Total: 110 320 2,097
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 0 135 135
Davis 48 0 48
Irvine 20 0 20
Los Angeles 0 22 22
Riverside 0 1 1
San Diego 0 38 38
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 4 2 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 9 9
Other-Network UC n/a 41 41
_______ ______ _____
72 248 320
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 512 512
Davis 500 0 500
Irvine 150 0 150
Los Angeles 0 115 115
Riverside 0 2 2
San Diego 0 316 316
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 45 1 46
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 38 38
Other-Network UC n/a 418 418
_______ ______ _____
695 1,402 2,097
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.7
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) 9:42
Average session length (minutes:seconds) 12:40
Longest session recorded (minutes:seconds) 118:03
Average number of searches completed per session 2.9
Retrievals per search - median 1.0
Retrievals per search - average 245.7
Retrievals per search - standard deviation 1623.9
Percent of searches completed with 0 results 46.9%
Percent of searches entered that are long 0.9%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 296 36.1%
DISPLAY (excluding automatic displays) 266 32.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 14 1.7%
EXPLAIN 14 1.7%
SET/RESET 48 5.8%
SHOW 4 0.5%
ADD ON (AND, OR, AND NOT) 24 2.9%
LOGON or LOGOFF 131 16.0%
COMMENT 0 0.0%
SAVE 8 1.0%
USE 0 0.0%
OTHER 16 1.9%
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 169 43.7% 100 59.2% 7 36.1 95.6
TITLE WORD 41 10.6% 15 36.6% 13 67.3 170.6
EXACT TITLE 9 2.3% 5 55.6% 5 11.5 15.8
JOURNAL 11 2.8% 7 63.6% 1,702 1649.3 1705.1
EXACT JOURNAL 4 1.0% 2 50.0% 12,723 12722.5 10880.3
SUBJECT 15 3.9% 7 46.7% 45 313.3 496.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 46 11.9% 7 15.2% 122 1120.5 3124.4
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 1 0.3% 0 0.0% 5 5.0 0.0
ADDED 84 21.7% 78 92.9% 1 1.0 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 6 1.6% 2 33.3% 126 121.0 127.3
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 0 0.0% 0 0.0% 0 0.0 0.0
EXACT PE 1 0.3% 0 0.0% 50 50.0 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 91 30.7% 79 86.8% 1 422.0 1450.8
Single 205 69.3% 65 31.7% 28 521.1 2394.8
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 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 1.3%
SHORT 91.4%
LONG 2.5%
TAGS 0.0%
FIELDS 2.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.6%
COMMENTS 0.0%
Other 1.6%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 14.1%
Ten most frequent errors:
1. DISPLAY command - no FIND results 59.3%
2. First word of command is invalid 13.3%
3. NS command - no next screen 9.6%
4. FIND command with invalid index name 6.7%
5. Search term missing from search command 4.4%
6. DISPLAY command contains invalid word 1.5%
7. Add-on search, no index name after verb 1.5%
8. NS of SHOW/EXP command-no next screen 1.5%
9. Range of record numbers invalid 0.7%
10. Left parenthesis is misplaced in search 0.7%
11. All others 0.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 21.4%
2. INDEXES (ABI DB) 14.3%
3. FIND (ABI DB) 14.3%
4. ABI/INFORM DB 7.1%
5. B030 7.1%
6. SUBJECT INDEX (ABI DB) 7.1%
7. B053 7.1%
8. Unrecognized term 7.1%
9. 1216 7.1%
10. DATABASES 7.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 35.7%
2. First word of command is invalid 21.4%
3. FIND command with zero results 17.9%
4. FIND command with invalid index name 14.3%
5. FIND command retrieves 1 book 3.6%
6. 278 3.6%
7. NS of SHOW/EXP command-no next screen 3.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. GLOSSARY 50.0%
2. HISTORY 50.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)