MELVYL ABI DATABASE TELNET STATISTICS
Time period: 08/25/01 through 08/31/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 41 46
Davis 17 0 17
Irvine 10 0 10
Los Angeles 0 18 18
Riverside 2 1 3
San Diego 1 4 5
San Francisco 5 0 5
Santa Barbara 4 1 5
Santa Cruz 1 1 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 17 0 17
Other-Network UC n/a 78 78
_______ ______ _____
62 147 209
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 2 5
2-4 a.m. 1 1 13
4-6 a.m. 0 0 0
6-8 a.m. 2 3 8
8-10 a.m. 34 99 1,145
10-12 a.m. 44 138 1,330
12-2 p.m. 34 102 1,258
2-4 p.m. 39 117 1,777
4-6 p.m. 30 101 1,567
6-8 p.m. 6 14 195
8-10 p.m. 7 22 641
10-12 p.m. 11 20 204
__________ __________ __________ _________________
Total: 209 619 8,143
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 5 212 217
Davis 38 0 38
Irvine 24 0 24
Los Angeles 0 40 40
Riverside 6 7 13
San Diego 2 29 31
San Francisco 9 0 9
Santa Barbara 2 2 4
Santa Cruz 13 2 15
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 28 0 28
Other-Network UC n/a 193 193
_______ ______ _____
127 492 619
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 9 4,103 4,112
Davis 364 0 364
Irvine 110 0 110
Los Angeles 0 1,418 1,418
Riverside 12 0 12
San Diego 15 485 500
San Francisco 18 0 18
Santa Barbara 2 0 2
Santa Cruz 340 2 342
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 156 156
Los Alamos 0 0 0
Other - UC 119 0 119
Other-Network UC n/a 990 990
_______ ______ _____
989 7,154 8,143
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
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) 9:56
Average session length (minutes:seconds) 15:29
Longest session recorded (minutes:seconds) 97:33
Average number of searches completed per session 3.0
Retrievals per search - median 8.0
Retrievals per search - average 645.9
Retrievals per search - standard deviation 4887.1
Percent of searches completed with 0 results 28.2%
Percent of searches entered that are long 1.5%
Percent of long searches completed
(includes partial results) 77.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 541 26.9%
DISPLAY (excluding automatic displays) 850 42.3%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 14 0.7%
EXPLAIN 15 0.7%
SET/RESET 120 6.0%
SHOW 8 0.4%
ADD ON (AND, OR, AND NOT) 78 3.9%
LOGON or LOGOFF 215 10.7%
COMMENT 0 0.0%
SAVE 126 6.3%
USE 1 0.0%
OTHER 40 2.0%
2.1 Article Text
_________________
DISPLAY TEXT commands 84
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 8
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 123 21.7% 34 27.6% 19 174.3 800.8
TITLE WORD 111 19.6% 53 47.7% 6 65.1 265.9
EXACT TITLE 14 2.5% 6 42.9% 1 9.9 17.9
JOURNAL 16 2.8% 6 37.5% 779 7110.3 12484.2
EXACT JOURNAL 45 8.0% 17 37.8% 206 483.8 579.6
SUBJECT 16 2.8% 7 43.8% 271 2215.1 3569.5
EXACT SUBJECT 1 0.2% 1 100% 0 0.0 0.0
KEYWORD 188 33.2% 20 10.6% 69 1595.3 8618.3
PUB TYPE 2 0.4% 0 0.0% 3,154 3154.0 3853.7
DATE 9 1.6% 2 22.2% 33 55.4 71.0
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 1 0.2% 0 0.0% 76 76.0 0.0
COMPANY NAME 20 3.5% 7 35.0% 220 160.0 94.5
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 10 1.8% 1 10.0% 3 25.7 63.7
EXACT PE 6 1.1% 0 0.0% 2 14.3 25.4
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 4 0.7% 3 75.0% 18 18.0 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 26 4.8% 9 34.6% 12 400.7 1415.9
Single 514 95.2% 139 27.0% 36 1033.4 6233.1
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 1.0%
SHORT 89.7%
LONG 1.3%
TAGS 0.0%
FIELDS 3.1%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.3%
COMMENTS 0.0%
Other 3.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.7%
Ten most frequent errors:
1. NS command - no next screen 33.8%
2. First word of command is invalid 31.7%
3. PS command - no previous screen 12.5%
4. FIND command with invalid index name 6.3%
5. DISPLAY command contains invalid word 3.3%
6. Valid command at an inappropriate time 2.1%
7. Search term missing from search command 2.1%
8. DISPLAY command-record numbers too large 0.8%
9. NS of SHOW/EXP command-no next screen 0.8%
10. SET command with invalid setting 0.4%
11. All others 6.3%
Ten most frequent EXPLAIN requests:
1. COMMANDS (ABI/PSY DBS) 13.3%
2. B034 13.3%
3. FIND LOCATION 13.3%
4. GUIDE (ABI DB) 6.7%
5. ABI/INFORM DB 6.7%
6. INDEXES (ABI DB) 6.7%
7. B042 6.7%
8. DATE (ABI DB) 6.7%
9. DISPLAY (ABI DB) 6.7%
10. Unrecognized term 6.7%
11. All others 13.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.6%
2. DISPLAY command - middle of >1 screen 20.7%
3. First word of command is invalid 10.3%
4. FIND command with invalid index name 10.3%
5. FIND command with zero results 6.9%
6. MELVYL system could not process command 3.4%
7. SHOW NEWS command 3.4%
8. FIND command retrieves >1 book 3.4%
9. DISPLAY command-first of >1 screen 3.4%
10. DISPLAY command - last of >1 screen 3.4%
11. All others 6.9%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. ABI NEWS 25.0%
3. SYSTEM NEWS 12.5%
4. SYSTEM4 NEWS 12.5%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)