MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/19/01 through 05/25/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 57 58
Davis 21 1 22
Irvine 10 0 10
Los Angeles 0 22 22
Riverside 11 0 11
San Diego 3 11 14
San Francisco 7 0 7
Santa Barbara 1 3 4
Santa Cruz 4 0 4
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 35 35
_______ ______ _____
58 131 189
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 2 5 0
4-6 a.m. 1 1 44
6-8 a.m. 6 23 156
8-10 a.m. 17 58 491
10-12 a.m. 33 62 351
12-2 p.m. 35 109 1,780
2-4 p.m. 45 118 2,614
4-6 p.m. 23 68 531
6-8 p.m. 15 47 611
8-10 p.m. 5 28 356
10-12 p.m. 7 34 370
__________ __________ __________ _________________
Total: 189 553 7,304
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 4 164 168
Davis 41 2 43
Irvine 43 0 43
Los Angeles 0 103 103
Riverside 17 0 17
San Diego 5 23 28
San Francisco 11 0 11
Santa Barbara 5 12 17
Santa Cruz 15 0 15
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 4 4
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 104 104
_______ ______ _____
141 412 553
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 3,697 3,699
Davis 513 4 517
Irvine 180 0 180
Los Angeles 0 1,139 1,139
Riverside 116 0 116
San Diego 4 338 342
San Francisco 50 0 50
Santa Barbara 1 112 113
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 143 143
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 1,005 1,005
_______ ______ _____
866 6,438 7,304
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) 8:27
Average session length (minutes:seconds) 12:46
Longest session recorded (minutes:seconds) 121:26
Average number of searches completed per session 2.9
Retrievals per search - median 5.0
Retrievals per search - average 675.6
Retrievals per search - standard deviation 4139.1
Percent of searches completed with 0 results 30.2%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 40.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 511 25.4%
DISPLAY (excluding automatic displays) 976 48.6%
BROWSE 2 0.1%
SELECT 0 0.0%
HELP 65 3.2%
EXPLAIN 26 1.3%
SET/RESET 82 4.1%
SHOW 1 0.0%
ADD ON (AND, OR, AND NOT) 42 2.1%
LOGON or LOGOFF 237 11.8%
COMMENT 0 0.0%
SAVE 6 0.3%
USE 3 0.1%
OTHER 61 3.0%
2.1 Article Text
_________________
DISPLAY TEXT commands 122
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 16
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 141 23.0% 48 34.0% 8 55.8 182.0
TITLE WORD 110 17.9% 43 39.1% 6 38.9 122.5
EXACT TITLE 14 2.3% 6 42.9% 5 59.3 127.1
JOURNAL 26 4.2% 6 23.1% 44 1318.1 3136.9
EXACT JOURNAL 25 4.1% 11 44.0% 828 8353.2 14282.7
SUBJECT 47 7.7% 28 59.6% 86 2213.7 3289.7
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 160 26.1% 20 12.5% 32 1116.2 6031.6
PUB TYPE 3 0.5% 0 0.0% 7 949.7 1632.7
DATE 50 8.2% 12 24.0% 9 45.0 190.6
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 7 1.1% 1 14.3% 460 459.3 498.1
COMPANY NAME 11 1.8% 4 36.4% 36 800.7 2051.5
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 15 2.4% 0 0.0% 3 6.5 6.6
EXACT PE 2 0.3% 0 0.0% 9 9.0 9.9
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 2 0.3% 2 100% 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 100 19.8% 30 30.0% 7 153.3 531.5
Single 406 80.2% 118 29.1% 20 1185.6 5590.2
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 2 100% 1 50.0% 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 0.9%
SHORT 92.8%
LONG 2.4%
TAGS 0.0%
FIELDS 1.3%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.8%
COMMENTS 0.0%
Other 0.8%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.6%
Ten most frequent errors:
1. First word of command is invalid 40.4%
2. NS command - no next screen 27.7%
3. FIND command with invalid index name 11.3%
4. DISPLAY command contains invalid word 5.2%
5. Add-on search, no index name after verb 2.3%
6. Search term missing from search command 1.4%
7. PS command - no previous screen 0.9%
8. Index invalid in current database 0.9%
9. Invalid Publication Type entered 0.9%
10. Invalid number in DISPLAY command 0.9%
11. All others 8.0%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 42.3%
2. FIND (ABI DB) 19.2%
3. B030 7.7%
4. MAGS DATABASE 3.8%
5. MAGS TEXT 3.8%
6. ABI/INFORM DB 3.8%
7. MAIL 3.8%
8. G175 3.8%
9. Unrecognized term-reminders off 3.8%
10. DATABASES 3.8%
11. All others 3.8%
Ten most frequent HELP situations:
1. First word of command is invalid 26.4%
2. 3 HELP commands issued from same code 17.6%
3. Help requested from SET DB command 17.6%
4. DISPLAY command-complete in one screen 7.7%
5. FIND command with invalid index name 6.6%
6. FIND command retrieves >1 book 5.5%
7. FIND command with zero results 4.4%
8. Multi-index search with zero results 4.4%
9. NS command - no next screen 2.2%
10. F/BR with index invalid in current DB 2.2%
11. All others 5.5%
Ten most frequent SHOW requests:
1. MAIL STATUS 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)