MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/05/02 through 01/11/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 51 52
Davis 3 0 3
Irvine 1 0 1
Los Angeles 0 14 14
Riverside 1 0 1
San Diego 3 6 9
San Francisco 3 0 3
Santa Barbara 0 1 1
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 12 12
_______ ______ _____
12 87 99
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 5 77
2-4 a.m. 0 0 0
4-6 a.m. 2 7 71
6-8 a.m. 5 10 184
8-10 a.m. 9 17 55
10-12 a.m. 18 49 312
12-2 p.m. 17 43 428
2-4 p.m. 24 59 627
4-6 p.m. 9 19 317
6-8 p.m. 4 10 83
8-10 p.m. 4 7 118
10-12 p.m. 6 72 8
__________ __________ __________ _________________
Total: 99 298 2,280
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 1 193 194
Davis 2 0 2
Irvine 0 0 0
Los Angeles 0 26 26
Riverside 2 0 2
San Diego 3 21 24
San Francisco 27 0 27
Santa Barbara 0 1 1
Santa Cruz 0 2 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 19 19
_______ ______ _____
35 263 298
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 1,460 1,461
Davis 36 0 36
Irvine 0 0 0
Los Angeles 0 99 99
Riverside 89 0 89
San Diego 0 174 174
San Francisco 234 0 234
Santa Barbara 0 3 3
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 183 183
_______ ______ _____
360 1,920 2,280
1.4 Response time
__________________
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) 8:24
Average session length (minutes:seconds) 12:16
Longest session recorded (minutes:seconds) 94:42
Average number of searches completed per session 3.0
Retrievals per search - median 1.0
Retrievals per search - average 626.6
Retrievals per search - standard deviation 3055.7
Percent of searches completed with 0 results 48.7%
Percent of searches entered that are long 2.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 273 30.8%
DISPLAY (excluding automatic displays) 310 35.0%
BROWSE 2 0.2%
SELECT 0 0.0%
HELP 15 1.7%
EXPLAIN 22 2.5%
SET/RESET 32 3.6%
SHOW 4 0.5%
ADD ON (AND, OR, AND NOT) 25 2.8%
LOGON or LOGOFF 140 15.8%
COMMENT 0 0.0%
SAVE 35 4.0%
USE 0 0.0%
OTHER 29 3.3%
2.1 Article Text
_________________
DISPLAY TEXT commands 26
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 6
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 137 38.2% 96 70.1% 9 93.2 478.2
TITLE WORD 29 8.1% 12 41.4% 4 3765.9 8789.1
EXACT TITLE 13 3.6% 5 38.5% 2 6.6 9.1
JOURNAL 1 0.3% 0 0.0% 699 699.0 0.0
EXACT JOURNAL 2 0.6% 1 50.0% 878 878.0 0.0
SUBJECT 16 4.5% 7 43.8% 4,367 5411.9 4503.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 60 16.7% 13 21.7% 41 392.3 1158.6
PUB TYPE 7 1.9% 0 0.0% 18 89.4 122.7
DATE 0 0.0% 0 0.0% 0 0.0 0.0
ADDED 74 20.6% 74 100% 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 15 4.2% 9 60.0% 448 973.2 1194.0
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 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 2 0.6% 0 0.0% 10 9.5 12.0
EXACT PE 2 0.6% 0 0.0% 15 15.0 15.6
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 1 0.3% 0 0.0% 194 194.0 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 86 31.5% 77 89.5% 51 1111.9 2279.1
Single 187 68.5% 63 33.7% 16 994.4 3790.9
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 2 100% 0 0.0% 2 2.0 1.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.8%
SHORT 91.2%
LONG 1.3%
TAGS 0.0%
FIELDS 1.0%
BROWSE REVIEW 0.3%
BROWSE LONG 0.0%
PERIODICALS 2.6%
COMMENTS 0.0%
Other 2.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 14.3%
Ten most frequent errors:
1. DISPLAY command - no FIND results 49.3%
2. First word of command is invalid 20.3%
3. NS command - no next screen 18.2%
4. FIND command with invalid index name 3.4%
5. DISPLAY command-record numbers too large 1.4%
6. DATE search with unrecognized word 1.4%
7. NS of SHOW/EXP command-no next screen 1.4%
8. DISPLAY command contains invalid word 0.7%
9. PS command - no previous screen 0.7%
10. Search term missing from search command 0.7%
11. All others 2.7%
Ten most frequent EXPLAIN requests:
1. FIND (ABI DB) 9.1%
2. COMMANDS (ABI/PSY DBS) 9.1%
3. G018 9.1%
4. MAGS DATABASE 4.5%
5. A014 4.5%
6. GUIDE (ABI DB) 4.5%
7. ABI/INFORM DB 4.5%
8. PUBLICATION TYPES (ABI DB) 4.5%
9. BIOSIS DATABASE 4.5%
10. MAIL 4.5%
11. All others 40.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 32.4%
2. FIND command with zero results 24.3%
3. First word of command is invalid 10.8%
4. FIND command with invalid index name 8.1%
5. DISPLAY command - middle of >1 screen 8.1%
6. FIND command retrieves 1 book 5.4%
7. DISPLAY command contains invalid word 2.7%
8. DISPLAY command-complete in one screen 2.7%
9. DISPLAY command-first of >1 screen 2.7%
10. DISPLAY command - last of >1 screen 2.7%
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)