MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/30/02 through 04/05/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 30 31
Davis 8 0 8
Irvine 7 0 7
Los Angeles 0 9 9
Riverside 4 0 4
San Diego 1 6 7
San Francisco 1 0 1
Santa Barbara 0 1 1
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 30 30
_______ ______ _____
22 78 100
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 24 16
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 1 3 79
8-10 a.m. 18 42 890
10-12 a.m. 21 43 488
12-2 p.m. 13 36 946
2-4 p.m. 19 35 388
4-6 p.m. 8 13 95
6-8 p.m. 6 12 114
8-10 p.m. 3 5 41
10-12 p.m. 9 55 1,569
__________ __________ __________ _________________
Total: 100 268 4,626
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 2 107 109
Davis 16 0 16
Irvine 18 0 18
Los Angeles 0 38 38
Riverside 7 0 7
San Diego 1 15 16
San Francisco 5 0 5
Santa Barbara 0 2 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 12 12
Other-Network UC n/a 45 45
_______ ______ _____
49 219 268
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 754 757
Davis 1,642 0 1,642
Irvine 103 0 103
Los Angeles 0 1,102 1,102
Riverside 15 0 15
San Diego 9 788 797
San Francisco 2 0 2
Santa Barbara 0 0 0
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 200 200
_______ ______ _____
1,774 2,852 4,626
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 0.6
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) 8:37
Average session length (minutes:seconds) 38:02
Longest session recorded (minutes:seconds) 977:12
Average number of searches completed per session 2.7
Retrievals per search - median 1.0
Retrievals per search - average 281.7
Retrievals per search - standard deviation 2743.6
Percent of searches completed with 0 results 44.0%
Percent of searches entered that are long 3.0%
Percent of long searches completed
(includes partial results) 75.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 252 21.4%
DISPLAY (excluding automatic displays) 648 54.9%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 11 0.9%
EXPLAIN 10 0.8%
SET/RESET 51 4.3%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 16 1.4%
LOGON or LOGOFF 109 9.2%
COMMENT 0 0.0%
SAVE 60 5.1%
USE 0 0.0%
OTHER 20 1.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 37
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 130 38.2% 79 60.8% 4 17.6 30.5
TITLE WORD 42 12.4% 16 38.1% 4 42.9 91.1
EXACT TITLE 5 1.5% 2 40.0% 1 5.7 8.1
JOURNAL 4 1.2% 3 75.0% 4 4.0 0.0
EXACT JOURNAL 9 2.6% 2 22.2% 955 1345.1 1424.3
SUBJECT 10 2.9% 7 70.0% 4 69.0 114.3
EXACT SUBJECT 4 1.2% 1 25.0% 334 334.0 0.0
KEYWORD 53 15.6% 5 9.4% 42 365.1 1493.3
PUB TYPE 7 2.1% 0 0.0% 129 6321.7 16323.0
DATE 2 0.6% 1 50.0% 125 125.0 0.0
ADDED 72 21.2% 60 83.3% 1 1.0 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 0.3% 1 100% 0 0.0 0.0
EX COMPANY NAME 1 0.3% 1 100% 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 0 0.0% 0 0.0% 0 0.0 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 0 0.0% 0 0.0% 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 89 35.5% 64 71.9% 1 42.6 104.8
Single 162 64.5% 50 30.9% 18 646.8 4210.3
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% 1 100% 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 0.4%
SHORT 93.0%
LONG 2.4%
TAGS 0.0%
FIELDS 0.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.0%
COMMENTS 0.0%
Other 3.4%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 11.1%
Ten most frequent errors:
1. DISPLAY command - no FIND results 40.5%
2. First word of command is invalid 22.3%
3. NS command - no next screen 18.2%
4. Valid command at an inappropriate time 4.1%
5. FIND command with invalid index name 3.4%
6. DISPLAY command contains invalid word 2.0%
7. DISPLAY command-record numbers too large 1.4%
8. PS command - no previous screen 1.4%
9. Search term missing from search command 1.4%
10. NS of SHOW/EXP command-no next screen 1.4%
11. All others 4.1%
Ten most frequent EXPLAIN requests:
1. MAIL 40.0%
2. FIND (ABI DB) 20.0%
3. PUBLICATION TYPES (ABI DB) 20.0%
4. GUIDE (ABI DB) 10.0%
5. B035 10.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 19.0%
2. Help requested from SET DB command 14.3%
3. FIND command with invalid index name 9.5%
4. DISPLAY command-complete in one screen 9.5%
5. DISPLAY command - middle of >1 screen 9.5%
6. 420 9.5%
7. MAIL command entered w/o email address 9.5%
8. Valid command at an inappropriate time 4.8%
9. NS command - no next screen 4.8%
10. DISPLAY command-first of >1 screen 4.8%
11. All others 4.8%
Ten most frequent SHOW requests:
1. ABI NEWS 33.3%
2. SEARCH 33.3%
3. MAIL STATUS 33.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)