MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/01/02 through 06/07/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 25 27
Davis 17 0 17
Irvine 5 0 5
Los Angeles 0 18 18
Riverside 0 0 0
San Diego 5 3 8
San Francisco 4 0 4
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 0 0
Other-Network UC n/a 22 22
_______ ______ _____
33 68 101
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 4 89
2-4 a.m. 0 0 0
4-6 a.m. 1 4 11
6-8 a.m. 5 4 18
8-10 a.m. 10 26 192
10-12 a.m. 18 43 741
12-2 p.m. 15 81 542
2-4 p.m. 25 82 1,118
4-6 p.m. 14 19 433
6-8 p.m. 3 14 650
8-10 p.m. 0 0 0
10-12 p.m. 9 87 19
__________ __________ __________ _________________
Total: 101 364 3,813
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 3 147 150
Davis 65 0 65
Irvine 11 0 11
Los Angeles 0 46 46
Riverside 0 0 0
San Diego 7 4 11
San Francisco 18 0 18
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 0 0
Other-Network UC n/a 63 63
_______ ______ _____
104 260 364
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 888 893
Davis 955 0 955
Irvine 178 0 178
Los Angeles 0 348 348
Riverside 0 0 0
San Diego 13 14 27
San Francisco 116 0 116
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 0 0
Other-Network UC n/a 1,296 1,296
_______ ______ _____
1,267 2,546 3,813
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.1
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 6:47
Average session length (minutes:seconds) 13:35
Longest session recorded (minutes:seconds) 94:28
Average number of searches completed per session 3.6
Retrievals per search - median 1.0
Retrievals per search - average 553.6
Retrievals per search - standard deviation 2683.2
Percent of searches completed with 0 results 44.0%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 325 29.8%
DISPLAY (excluding automatic displays) 416 38.1%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 11 1.0%
EXPLAIN 16 1.5%
SET/RESET 42 3.8%
SHOW 5 0.5%
ADD ON (AND, OR, AND NOT) 39 3.6%
LOGON or LOGOFF 127 11.6%
COMMENT 0 0.0%
SAVE 83 7.6%
USE 0 0.0%
OTHER 27 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 23
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 1
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 139 31.6% 100 71.9% 7 26.6 83.1
TITLE WORD 32 7.3% 8 25.0% 6 44.3 79.5
EXACT TITLE 20 4.5% 6 30.0% 1 1.1 0.3
JOURNAL 22 5.0% 2 9.1% 201 2269.8 5158.7
EXACT JOURNAL 5 1.1% 2 40.0% 65 49.0 30.3
SUBJECT 22 5.0% 10 45.5% 174 681.8 1063.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 90 20.5% 32 35.6% 145 2316.1 5568.3
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 10 2.3% 1 10.0% 55 121.9 195.4
ADDED 84 19.1% 84 100% 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 4 0.9% 1 25.0% 2,439 1737.0 1215.9
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 5 1.1% 0 0.0% 9 25.0 36.9
EXACT PE 7 1.6% 0 0.0% 14 217.1 381.6
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 115 35.4% 89 77.4% 60 126.2 193.2
Single 210 64.6% 68 32.4% 22 1349.0 4175.4
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 5.8%
SHORT 88.0%
LONG 1.6%
TAGS 0.0%
FIELDS 0.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.4%
COMMENTS 0.0%
Other 1.6%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 14.3%
Ten most frequent errors:
1. DISPLAY command - no FIND results 46.7%
2. First word of command is invalid 15.9%
3. NS command - no next screen 15.9%
4. FIND command with invalid index name 6.0%
5. DISPLAY command-record numbers too large 2.2%
6. DISPLAY command contains invalid word 2.2%
7. PS command - no previous screen 2.2%
8. Add-on search, no index name after verb 1.1%
9. Valid command at an inappropriate time 0.5%
10. Range of record numbers invalid 0.5%
11. All others 6.6%
Ten most frequent EXPLAIN requests:
1. B034 37.5%
2. GUIDE (ABI DB) 6.3%
3. ABI/INFORM DB 6.3%
4. INDEXES (ABI DB) 6.3%
5. FIND (ABI DB) 6.3%
6. B035 6.3%
7. DISPLAY (ABI DB) 6.3%
8. B098 6.3%
9. MAIL 6.3%
10. LOCATE (ARTICLE DBS) 6.3%
11. All others 6.3%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.2%
2. DISPLAY command-first of >1 screen 18.5%
3. PS command - no previous screen 14.8%
4. FIND command retrieves 1 book 11.1%
5. First word of command is invalid 7.4%
6. DISPLAY command - no FIND results 3.7%
7. NS command - no next screen 3.7%
8. FIND command with invalid index name 3.7%
9. FIND command with zero results 3.7%
10. FIND command retrieves >1 book 3.7%
11. All others 7.4%
Ten most frequent SHOW requests:
1. HISTORY 80.0%
2. SEARCH 20.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)