MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/20/01 through 10/26/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 54 62
Davis 15 0 15
Irvine 15 0 15
Los Angeles 0 18 18
Riverside 0 0 0
San Diego 2 5 7
San Francisco 3 0 3
Santa Barbara 2 3 5
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 2 2 4
Other-Network UC n/a 69 69
_______ ______ _____
47 151 198
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 25 110
2-4 a.m. 3 6 50
4-6 a.m. 2 5 1
6-8 a.m. 9 35 223
8-10 a.m. 27 61 681
10-12 a.m. 42 88 711
12-2 p.m. 38 71 317
2-4 p.m. 36 71 985
4-6 p.m. 24 73 1,017
6-8 p.m. 8 18 181
8-10 p.m. 2 3 21
10-12 p.m. 2 2 37
__________ __________ __________ _________________
Total: 198 458 4,334
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 20 151 171
Davis 31 0 31
Irvine 51 0 51
Los Angeles 0 40 40
Riverside 0 0 0
San Diego 2 14 16
San Francisco 3 0 3
Santa Barbara 3 8 11
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 2 3 5
Other-Network UC n/a 130 130
_______ ______ _____
112 346 458
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 530 1,922 2,452
Davis 148 0 148
Irvine 150 0 150
Los Angeles 0 510 510
Riverside 0 0 0
San Diego 3 55 58
San Francisco 4 0 4
Santa Barbara 15 141 156
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 853 853
_______ ______ _____
850 3,484 4,334
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 5.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.7
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 6:41
Average session length (minutes:seconds) 13:37
Longest session recorded (minutes:seconds) 152:57
Average number of searches completed per session 2.3
Retrievals per search - median 4.0
Retrievals per search - average 1063.3
Retrievals per search - standard deviation 9464.7
Percent of searches completed with 0 results 25.2%
Percent of searches entered that are long 3.1%
Percent of long searches completed
(includes partial results) 57.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 417 26.0%
DISPLAY (excluding automatic displays) 734 45.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 24 1.5%
EXPLAIN 20 1.2%
SET/RESET 98 6.1%
SHOW 6 0.4%
ADD ON (AND, OR, AND NOT) 41 2.6%
LOGON or LOGOFF 200 12.5%
COMMENT 0 0.0%
SAVE 13 0.8%
USE 0 0.0%
OTHER 51 3.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 81
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 11
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 170 36.2% 38 22.4% 6 35.2 94.7
TITLE WORD 97 20.7% 43 44.3% 1 72.9 248.6
EXACT TITLE 9 1.9% 6 66.7% 1 1.0 0.0
JOURNAL 11 2.3% 4 36.4% 117 5948.7 15273.3
EXACT JOURNAL 5 1.1% 1 20.0% 865 9828.0 18473.6
SUBJECT 29 6.2% 14 48.3% 342 5251.6 8568.6
EXACT SUBJECT 4 0.9% 3 75.0% 1,447 1447.0 0.0
KEYWORD 106 22.6% 9 8.5% 97 3118.7 19214.9
PUB TYPE 2 0.4% 0 0.0% 93 92.5 112.4
DATE 11 2.3% 2 18.2% 2 4.2 5.0
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 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 2 0.4% 0 0.0% 73 73.0 9.9
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 16 3.4% 2 12.5% 10 119.9 285.3
EXACT PE 6 1.3% 0 0.0% 8 48.5 66.3
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 0.2% 1 100% 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 55 13.3% 17 30.9% 1 34.4 73.8
Single 359 86.7% 89 24.8% 20 1748.1 12204.8
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 1.2%
SHORT 90.1%
LONG 0.1%
TAGS 0.0%
FIELDS 1.3%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 5.1%
COMMENTS 0.0%
Other 2.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.0%
Ten most frequent errors:
1. First word of command is invalid 35.4%
2. NS command - no next screen 27.2%
3. FIND command with invalid index name 10.8%
4. PS command - no previous screen 7.0%
5. DISPLAY command contains invalid word 3.2%
6. Valid command at an inappropriate time 1.9%
7. BROWSE command with invalid index name 1.9%
8. Max. # of ports to a Z39 db are in use 1.9%
9. Search term missing from search command 1.3%
10. Add-on search, no index name after verb 1.3%
11. All others 8.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 30.0%
2. LOCATE (ARTICLE DBS) 20.0%
3. INDEXES (ABI DB) 15.0%
4. FIND (ABI DB) 15.0%
5. COMMANDS (ABI/PSY DBS) 15.0%
6. DISPLAY (ABI DB) 5.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.3%
2. FIND command with invalid index name 20.5%
3. First word of command is invalid 11.4%
4. FIND command with zero results 11.4%
5. PS command - no previous screen 6.8%
6. DISPLAY command-complete in one screen 6.8%
7. DISPLAY command - middle of >1 screen 6.8%
8. FIND command retrieves >1 book 4.5%
9. FIND command retrieves 1 book 2.3%
10. MAIL command entered w/o email address 2.3%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. ABI NEWS 16.7%
3. SEARCH 16.7%
4. MAIL STATUS 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)