MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/23/02 through 03/29/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 22 24
Davis 5 0 5
Irvine 4 0 4
Los Angeles 1 19 20
Riverside 0 1 1
San Diego 2 5 7
San Francisco 3 0 3
Santa Barbara 0 2 2
Santa Cruz 0 0 0
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 27 27
_______ ______ _____
17 79 96
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 4 19
2-4 a.m. 1 1 24
4-6 a.m. 3 8 8
6-8 a.m. 3 4 250
8-10 a.m. 11 14 51
10-12 a.m. 17 33 336
12-2 p.m. 9 16 109
2-4 p.m. 28 106 1,063
4-6 p.m. 11 17 778
6-8 p.m. 0 0 0
8-10 p.m. 3 5 10
10-12 p.m. 7 84 0
__________ __________ __________ _________________
Total: 96 292 2,648
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 0 132 132
Davis 6 0 6
Irvine 20 0 20
Los Angeles 1 48 49
Riverside 0 1 1
San Diego 5 24 29
San Francisco 2 0 2
Santa Barbara 0 3 3
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 8 8
Other-Network UC n/a 42 42
_______ ______ _____
34 258 292
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 638 638
Davis 35 0 35
Irvine 193 0 193
Los Angeles 2 599 601
Riverside 0 0 0
San Diego 9 101 110
San Francisco 2 0 2
Santa Barbara 0 11 11
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 164 164
Other-Network UC n/a 894 894
_______ ______ _____
241 2,407 2,648
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.3
Standard deviation in seconds 0.5
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
_________________________________________
Median session length (minutes:seconds) 7:03
Average session length (minutes:seconds) 10:09
Longest session recorded (minutes:seconds) 56:53
Average number of searches completed per session 3.0
Retrievals per search - median 1.0
Retrievals per search - average 127.4
Retrievals per search - standard deviation 1544.1
Percent of searches completed with 0 results 49.1%
Percent of searches entered that are long 1.0%
Percent of long searches completed
(includes partial results) 66.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 281 32.9%
DISPLAY (excluding automatic displays) 364 42.7%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 3 0.4%
EXPLAIN 3 0.4%
SET/RESET 46 5.4%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 11 1.3%
LOGON or LOGOFF 106 12.4%
COMMENT 0 0.0%
SAVE 14 1.6%
USE 0 0.0%
OTHER 24 2.8%
2.1 Article Text
_________________
DISPLAY TEXT commands 32
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 4
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 148 37.3% 98 66.2% 11 33.5 95.4
TITLE WORD 58 14.6% 28 48.3% 4 52.8 140.5
EXACT TITLE 2 0.5% 1 50.0% 4 4.0 0.0
JOURNAL 11 2.8% 4 36.4% 481 4283.3 9711.7
EXACT JOURNAL 15 3.8% 6 40.0% 20 46.0 54.6
SUBJECT 3 0.8% 1 33.3% 91 90.5 125.2
EXACT SUBJECT 3 0.8% 1 33.3% 2 2.0 0.0
KEYWORD 60 15.1% 6 10.0% 21 67.6 102.5
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 8 2.0% 2 25.0% 27 54.3 69.3
ADDED 87 21.9% 85 97.7% 2 2.0 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 0 0.0% 0 0.0% 0 0.0 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 1 0.3% 0 0.0% 21 21.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
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 1 0.3% 0 0.0% 161 161.0 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 117 41.8% 93 79.5% 18 58.4 106.3
Single 163 58.2% 46 28.2% 13 300.9 2430.3
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 0.5%
SHORT 95.7%
LONG 0.5%
TAGS 0.0%
FIELDS 0.7%
BROWSE REVIEW 0.5%
BROWSE LONG 0.0%
PERIODICALS 0.5%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 14.2%
Ten most frequent errors:
1. DISPLAY command - no FIND results 59.6%
2. NS command - no next screen 20.6%
3. First word of command is invalid 8.5%
4. DISPLAY command contains invalid word 4.3%
5. DISPLAY command-record numbers too large 1.4%
6. PS command - no previous screen 1.4%
7. FIND command with invalid index name 1.4%
8. 17 0.7%
9. Search term missing from search command 0.7%
10. 745 0.7%
11. All others 0.7%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 66.7%
2. GUIDE (ABI DB) 33.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 66.7%
2. First word of command is invalid 16.7%
3. FIND command with zero results 16.7%
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)