MELVYL ABI DATABASE TELNET STATISTICS
Time period: 07/28/01 through 08/03/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 61 68
Davis 10 1 11
Irvine 16 0 16
Los Angeles 0 28 28
Riverside 1 0 1
San Diego 0 5 5
San Francisco 4 0 4
Santa Barbara 1 1 2
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 46 46
_______ ______ _____
40 145 185
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 11 131
2-4 a.m. 2 4 15
4-6 a.m. 0 0 9
6-8 a.m. 5 27 163
8-10 a.m. 15 24 181
10-12 a.m. 35 109 1,167
12-2 p.m. 30 66 306
2-4 p.m. 42 122 2,143
4-6 p.m. 31 75 801
6-8 p.m. 8 12 27
8-10 p.m. 9 17 425
10-12 p.m. 5 13 25
__________ __________ __________ _________________
Total: 185 480 5,393
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 31 140 171
Davis 18 4 22
Irvine 53 0 53
Los Angeles 0 91 91
Riverside 6 0 6
San Diego 0 4 4
San Francisco 18 0 18
Santa Barbara 1 4 5
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 11 11
Other-Network UC n/a 95 95
_______ ______ _____
128 352 480
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 172 1,575 1,747
Davis 269 183 452
Irvine 296 0 296
Los Angeles 0 1,390 1,390
Riverside 33 0 33
San Diego 0 70 70
San Francisco 214 0 214
Santa Barbara 69 2 71
Santa Cruz 17 0 17
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 15 15
Los Alamos 0 0 0
Other - UC 0 243 243
Other-Network UC n/a 845 845
_______ ______ _____
1,070 4,323 5,393
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.0
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) 10:09
Average session length (minutes:seconds) 16:59
Longest session recorded (minutes:seconds) 375:11
Average number of searches completed per session 2.6
Retrievals per search - median 9.0
Retrievals per search - average 1607.6
Retrievals per search - standard deviation 7322.6
Percent of searches completed with 0 results 22.2%
Percent of searches entered that are long 1.0%
Percent of long searches completed
(includes partial results) 60.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 412 25.3%
DISPLAY (excluding automatic displays) 714 43.9%
BROWSE 1 0.1%
SELECT 2 0.1%
HELP 20 1.2%
EXPLAIN 21 1.3%
SET/RESET 90 5.5%
SHOW 8 0.5%
ADD ON (AND, OR, AND NOT) 67 4.1%
LOGON or LOGOFF 216 13.3%
COMMENT 0 0.0%
SAVE 19 1.2%
USE 1 0.1%
OTHER 59 3.6%
2.1 Article Text
_________________
DISPLAY TEXT commands 75
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 9
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 144 30.8% 25 17.4% 8 101.2 250.0
TITLE WORD 49 10.5% 19 38.8% 4 21.0 35.7
EXACT TITLE 12 2.6% 5 41.7% 4 4.7 4.0
JOURNAL 39 8.3% 18 46.2% 536 6401.2 13107.6
EXACT JOURNAL 9 1.9% 3 33.3% 644 2660.7 3698.4
SUBJECT 15 3.2% 7 46.7% 437 9842.8 19490.1
EXACT SUBJECT 2 0.4% 1 50.0% 150 150.0 0.0
KEYWORD 138 29.5% 23 16.7% 35 1426.5 7427.8
PUB TYPE 4 0.9% 0 0.0% 32 71.5 103.0
DATE 32 6.8% 8 25.0% 18 32.8 39.3
ADDED 5 1.1% 0 0.0% 18,305 16072.8 7667.0
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% 38 27.7 17.9
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 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 6 1.3% 2 33.3% 3 2552.0 5100.0
EXACT PE 2 0.4% 0 0.0% 2 1.5 0.7
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 8 1.7% 1 12.5% 18,446 12231.9 8223.6
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 14.1% 14 24.1% 10 267.4 1427.3
Single 352 85.9% 84 23.9% 25 2089.0 7767.0
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 1 100% 0 0.0% 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 4.3%
SHORT 90.2%
LONG 2.0%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.1%
COMMENTS 0.0%
Other 1.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.8%
Ten most frequent errors:
1. NS command - no next screen 49.6%
2. First word of command is invalid 21.2%
3. DISPLAY command contains invalid word 5.1%
4. FIND command with invalid index name 3.6%
5. DISPLAY command - no FIND results 2.9%
6. DISPLAY command-record numbers too large 2.2%
7. PS command - no previous screen 1.5%
8. Search term missing from search command 1.5%
9. Add-on search, no index name after verb 1.5%
10. Valid command at an inappropriate time 0.7%
11. All others 10.2%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 23.8%
2. GUIDE (ABI DB) 14.3%
3. FIND (ABI DB) 9.5%
4. MAIL 9.5%
5. DATABASES 9.5%
6. ABI/INFORM DB 4.8%
7. COMMANDS (ABI/PSY DBS) 4.8%
8. B034 4.8%
9. SUBJECT INDEX (ABI DB) 4.8%
10. B042 4.8%
11. All others 9.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.8%
2. FIND command with zero results 24.4%
3. FIND command with invalid index name 9.8%
4. DISPLAY command - middle of >1 screen 9.8%
5. First word of command is invalid 7.3%
6. FIND command retrieves >1 book 4.9%
7. NS of SHOW/EXP command-no next screen 4.9%
8. NS command - no next screen 2.4%
9. 170 2.4%
10. DISPLAY command-first of >1 screen 2.4%
11. All others 4.9%
Ten most frequent SHOW requests:
1. MAIL SETTINGS 40.0%
2. HISTORY 40.0%
3. SETTINGS (ABI DB) 20.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)