MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/29/01 through 10/05/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 63 69
Davis 20 0 20
Irvine 15 0 15
Los Angeles 0 21 21
Riverside 3 0 3
San Diego 2 8 10
San Francisco 6 0 6
Santa Barbara 5 3 8
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 36 36
_______ ______ _____
57 132 189
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 56 554
2-4 a.m. 1 8 140
4-6 a.m. 5 16 154
6-8 a.m. 6 25 221
8-10 a.m. 25 83 731
10-12 a.m. 40 94 894
12-2 p.m. 28 66 580
2-4 p.m. 34 97 1,570
4-6 p.m. 23 58 444
6-8 p.m. 6 19 237
8-10 p.m. 8 45 488
10-12 p.m. 6 25 567
__________ __________ __________ _________________
Total: 189 592 6,580
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 18 206 224
Davis 54 0 54
Irvine 62 0 62
Los Angeles 0 70 70
Riverside 13 0 13
San Diego 2 25 27
San Francisco 30 0 30
Santa Barbara 5 3 8
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 103 103
_______ ______ _____
184 408 592
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 141 3,244 3,385
Davis 325 0 325
Irvine 826 0 826
Los Angeles 0 422 422
Riverside 4 0 4
San Diego 7 113 120
San Francisco 577 0 577
Santa Barbara 4 26 30
Santa Cruz 0 2 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 889 889
_______ ______ _____
1,884 4,696 6,580
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 0.9
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) 11:45
Average session length (minutes:seconds) 15:16
Longest session recorded (minutes:seconds) 81:31
Average number of searches completed per session 3.1
Retrievals per search - median 7.0
Retrievals per search - average 369.7
Retrievals per search - standard deviation 2819.8
Percent of searches completed with 0 results 26.8%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 57.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 548 30.3%
DISPLAY (excluding automatic displays) 806 44.6%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 5 0.3%
EXPLAIN 9 0.5%
SET/RESET 85 4.7%
SHOW 2 0.1%
ADD ON (AND, OR, AND NOT) 44 2.4%
LOGON or LOGOFF 228 12.6%
COMMENT 0 0.0%
SAVE 42 2.3%
USE 0 0.0%
OTHER 39 2.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 57
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 178 30.6% 46 25.8% 11 48.7 156.4
TITLE WORD 118 20.3% 36 30.5% 9 59.0 139.0
EXACT TITLE 8 1.4% 5 62.5% 4 4.0 3.0
JOURNAL 40 6.9% 12 30.0% 68 524.5 935.8
EXACT JOURNAL 9 1.5% 7 77.8% 1,652 1651.5 1856.2
SUBJECT 19 3.3% 5 26.3% 177 1240.5 1935.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 178 30.6% 35 19.7% 45 1165.4 5563.7
PUB TYPE 7 1.2% 1 14.3% 362 684.5 806.8
DATE 5 0.9% 1 20.0% 22 40.5 53.8
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 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 1 0.2% 0 0.0% 145 145.0 0.0
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 13 2.2% 2 15.4% 3 17.0 41.3
EXACT PE 3 0.5% 0 0.0% 2 2.7 2.1
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% 0 0.0% 50 49.5 61.5
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 42 7.8% 12 28.6% 24 159.6 429.3
Single 497 92.2% 126 25.4% 15 561.8 3519.2
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 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 1.4%
SHORT 93.0%
LONG 0.2%
TAGS 0.0%
FIELDS 1.1%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.3%
COMMENTS 0.0%
Other 2.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.2%
Ten most frequent errors:
1. NS command - no next screen 45.7%
2. First word of command is invalid 21.4%
3. FIND command with invalid index name 10.7%
4. DISPLAY command-record numbers too large 5.0%
5. DISPLAY command contains invalid word 3.6%
6. PS command - no previous screen 2.1%
7. Search term missing from search command 2.1%
8. 178 2.1%
9. Valid command at an inappropriate time 0.7%
10. Invalid SET DATABASE command issued 0.7%
11. All others 5.7%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 22.2%
2. FIND (ABI DB) 22.2%
3. GUIDE (ABI DB) 11.1%
4. DATE (ABI DB) 11.1%
5. DISPLAY (ABI DB) 11.1%
6. ADDON SEARCH 11.1%
7. 3470 11.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 35.7%
2. NS command - no next screen 14.3%
3. DISPLAY command-complete in one screen 14.3%
4. DISPLAY command - middle of >1 screen 14.3%
5. Multi-index search with zero results 14.3%
6. DISPLAY command-first of >1 screen 7.1%
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)