MELVYL ABI DATABASE TELNET STATISTICS
Time period: 02/24/01 through 03/02/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 97 101
Davis 20 0 20
Irvine 13 0 13
Los Angeles 2 25 27
Riverside 9 0 9
San Diego 5 5 10
San Francisco 8 0 8
Santa Barbara 3 2 5
Santa Cruz 2 0 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 61 61
_______ ______ _____
66 190 256
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 15 186
2-4 a.m. 6 45 797
4-6 a.m. 4 18 51
6-8 a.m. 11 27 1,215
8-10 a.m. 33 87 620
10-12 a.m. 52 137 829
12-2 p.m. 44 131 1,094
2-4 p.m. 42 126 792
4-6 p.m. 26 50 345
6-8 p.m. 13 26 247
8-10 p.m. 11 21 118
10-12 p.m. 9 24 247
__________ __________ __________ _________________
Total: 256 707 6,541
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 6 257 263
Davis 30 0 30
Irvine 53 0 53
Los Angeles 4 78 82
Riverside 14 0 14
San Diego 21 30 51
San Francisco 16 0 16
Santa Barbara 7 2 9
Santa Cruz 2 0 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 187 187
_______ ______ _____
153 554 707
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 27 1,925 1,952
Davis 200 0 200
Irvine 219 0 219
Los Angeles 51 920 971
Riverside 94 0 94
San Diego 52 419 471
San Francisco 133 0 133
Santa Barbara 30 7 37
Santa Cruz 10 0 10
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 2,454 2,454
_______ ______ _____
816 5,725 6,541
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) 9:04
Average session length (minutes:seconds) 11:38
Longest session recorded (minutes:seconds) 73:05
Average number of searches completed per session 2.7
Retrievals per search - median 3.0
Retrievals per search - average 652.9
Retrievals per search - standard deviation 5226.6
Percent of searches completed with 0 results 34.3%
Percent of searches entered that are long 1.6%
Percent of long searches completed
(includes partial results) 45.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 638 30.1%
DISPLAY (excluding automatic displays) 796 37.6%
BROWSE 9 0.4%
SELECT 0 0.0%
HELP 29 1.4%
EXPLAIN 45 2.1%
SET/RESET 116 5.5%
SHOW 18 0.8%
ADD ON (AND, OR, AND NOT) 69 3.3%
LOGON or LOGOFF 292 13.8%
COMMENT 0 0.0%
SAVE 37 1.7%
USE 0 0.0%
OTHER 79 3.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 60
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 13
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 154 22.3% 47 30.5% 12 102.6 289.3
TITLE WORD 176 25.4% 68 38.6% 8 59.7 145.3
EXACT TITLE 6 0.9% 3 50.0% 1 27.3 45.6
JOURNAL 47 6.8% 16 34.0% 21 937.0 2134.0
EXACT JOURNAL 15 2.2% 5 33.3% 953 1457.2 1022.7
SUBJECT 53 7.7% 36 67.9% 366 8096.1 19442.3
EXACT SUBJECT 1 0.1% 0 0.0% 878 878.0 0.0
KEYWORD 160 23.1% 33 20.6% 18 1837.7 9494.5
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 26 3.8% 8 30.8% 1 2.9 2.9
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 12 1.7% 3 25.0% 7 809.2 2170.2
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 1 0.1% 1 100% 0 0.0 0.0
PERIODICAL 28 4.0% 5 17.9% 2 14.0 27.4
EXACT PE 10 1.4% 1 10.0% 4 13.2 19.3
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 3 0.4% 0 0.0% 13 4224.0 7300.6
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 62 9.8% 15 24.2% 5 19.3 64.9
Single 568 90.2% 196 34.5% 17 1214.1 7120.9
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 9 100% 4 44.4% 1 2.0 1.7
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.5%
SHORT 87.3%
LONG 1.1%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.3%
BROWSE LONG 0.0%
PERIODICALS 4.8%
COMMENTS 0.0%
Other 2.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.1%
Ten most frequent errors:
1. First word of command is invalid 33.0%
2. NS command - no next screen 28.8%
3. FIND command with invalid index name 12.3%
4. DISPLAY command contains invalid word 6.6%
5. PS command - no previous screen 2.4%
6. Add-on search with no previous result 1.9%
7. Valid command at an inappropriate time 1.4%
8. DISPLAY command - no FIND results 1.4%
9. Add-on search, no index name after verb 1.4%
10. Search term missing from search command 0.9%
11. All others 9.9%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 24.4%
2. LOCATE (ARTICLE DBS) 15.6%
3. INDEXES (ABI DB) 11.1%
4. FIND (ABI DB) 8.9%
5. COMMANDS (ABI/PSY DBS) 8.9%
6. B042 4.4%
7. MAIL 4.4%
8. Unrecognized term 4.4%
9. DATABASES 4.4%
10. 3800 4.4%
11. All others 8.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.7%
2. First word of command is invalid 17.6%
3. FIND command with invalid index name 10.8%
4. NS command - no next screen 6.8%
5. FIND command with zero results 6.8%
6. DISPLAY command - middle of >1 screen 5.4%
7. DISPLAY command contains invalid word 4.1%
8. BROWSE command with invalid index name 2.7%
9. DISPLAY command-complete in one screen 2.7%
10. DISPLAY command-first of >1 screen 2.7%
11. All others 10.8%
Ten most frequent SHOW requests:
1. SEARCH 50.0%
2. HISTORY 18.8%
3. MAIL SETTINGS 12.5%
4. SYSTEM NEWS 6.3%
5. FIND DISPLAY 6.3%
6. MAIL STATUS 6.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)