MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/12/01 through 05/18/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 57 63
Davis 15 0 15
Irvine 34 0 34
Los Angeles 1 34 35
Riverside 8 0 8
San Diego 6 9 15
San Francisco 9 0 9
Santa Barbara 0 1 1
Santa Cruz 3 2 5
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 46 46
_______ ______ _____
82 150 232
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 22 544
2-4 a.m. 0 0 1
4-6 a.m. 3 16 185
6-8 a.m. 3 3 413
8-10 a.m. 25 82 572
10-12 a.m. 35 121 1,325
12-2 p.m. 48 174 3,021
2-4 p.m. 50 128 3,155
4-6 p.m. 27 82 615
6-8 p.m. 14 23 238
8-10 p.m. 10 11 161
10-12 p.m. 15 86 2,137
__________ __________ __________ _________________
Total: 232 748 12,367
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 19 208 227
Davis 38 0 38
Irvine 165 0 165
Los Angeles 7 82 89
Riverside 14 0 14
San Diego 10 60 70
San Francisco 20 0 20
Santa Barbara 0 1 1
Santa Cruz 1 5 6
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 116 116
_______ ______ _____
274 474 748
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 77 4,155 4,232
Davis 501 0 501
Irvine 1,917 0 1,917
Los Angeles 36 1,482 1,518
Riverside 181 0 181
San Diego 323 2,254 2,577
San Francisco 237 0 237
Santa Barbara 0 22 22
Santa Cruz 16 71 87
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 4 4
Other-Network UC n/a 1,091 1,091
_______ ______ _____
3,288 9,079 12,367
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.1
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) 10:12
Average session length (minutes:seconds) 15:11
Longest session recorded (minutes:seconds) 230:34
Average number of searches completed per session 3.2
Retrievals per search - median 9.0
Retrievals per search - average 1462.1
Retrievals per search - standard deviation 18496
Percent of searches completed with 0 results 25.9%
Percent of searches entered that are long 3.3%
Percent of long searches completed
(includes partial results) 76.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 667 27.0%
DISPLAY (excluding automatic displays) 1,144 46.3%
BROWSE 3 0.1%
SELECT 0 0.0%
HELP 24 1.0%
EXPLAIN 42 1.7%
SET/RESET 102 4.1%
SHOW 19 0.8%
ADD ON (AND, OR, AND NOT) 81 3.3%
LOGON or LOGOFF 283 11.5%
COMMENT 0 0.0%
SAVE 22 0.9%
USE 0 0.0%
OTHER 86 3.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 114
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 21
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 171 23.6% 46 26.9% 14 86.7 263.5
TITLE WORD 163 22.5% 53 32.5% 8 65.4 203.1
EXACT TITLE 13 1.8% 2 15.4% 1 7.2 13.0
JOURNAL 28 3.9% 12 42.9% 59 829.3 1529.0
EXACT JOURNAL 19 2.6% 6 31.6% 370 1608.2 2597.9
SUBJECT 35 4.8% 12 34.3% 134 8013.6 30844.2
EXACT SUBJECT 3 0.4% 1 33.3% 2,419 2418.5 3418.9
KEYWORD 225 31.0% 51 22.7% 65 4396.6 36199.3
PUB TYPE 4 0.6% 0 0.0% 79 62.8 33.2
DATE 15 2.1% 2 13.3% 31 291.0 560.2
ADDED 5 0.7% 2 40.0% 4,246 4246.0 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 1 0.1% 0 0.0% 1 1.0 0.0
COMPANY NAME 14 1.9% 4 28.6% 42 118.7 195.7
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 12 1.7% 1 8.3% 3 60.6 175.2
EXACT PE 11 1.5% 3 27.3% 12 60.9 140.3
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 6 0.8% 0 0.0% 328 747.5 1120.0
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 61 9.2% 14 22.9% 6 123.5 323.7
Single 600 90.8% 167 27.8% 26 2351.7 24072.2
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 3 100% 1 33.3% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.2%
SHORT 89.0%
LONG 1.1%
TAGS 0.0%
FIELDS 1.9%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 2.7%
COMMENTS 0.0%
Other 2.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.3%
Ten most frequent errors:
1. First word of command is invalid 31.6%
2. NS command - no next screen 31.6%
3. FIND command with invalid index name 8.4%
4. DISPLAY command contains invalid word 3.9%
5. PS command - no previous screen 3.2%
6. Valid command at an inappropriate time 2.8%
7. DISPLAY command - no FIND results 2.1%
8. DISPLAY command-record numbers too large 1.8%
9. 48 1.4%
10. Command contains escape or arrow key 1.4%
11. All others 11.9%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 28.6%
2. INDEXES (ABI DB) 14.3%
3. DISPLAY (ABI DB) 7.1%
4. Unrecognized term-reminders off 7.1%
5. ABI/INFORM DB 4.8%
6. FIND (ABI DB) 4.8%
7. B042 4.8%
8. LOCATE (ARTICLE DBS) 4.8%
9. 3775 4.8%
10. 3800 4.8%
11. All others 14.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 39.4%
2. First word of command is invalid 12.1%
3. FIND command with invalid index name 6.1%
4. FIND command with zero results 6.1%
5. DISPLAY command - middle of >1 screen 6.1%
6. DISPLAY command - last of >1 screen 6.1%
7. PS command - no previous screen 4.5%
8. Valid command at an inappropriate time 3.0%
9. Add-on without index name after verb 3.0%
10. MAIL command entered w/o email address 3.0%
11. All others 10.6%
Ten most frequent SHOW requests:
1. HISTORY 82.4%
2. SEARCH 11.8%
3. GLOSSARY 5.9%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)