MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/09/02 through 03/15/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 47 48
Davis 10 0 10
Irvine 18 0 18
Los Angeles 0 13 13
Riverside 0 0 0
San Diego 0 7 7
San Francisco 6 0 6
Santa Barbara 0 1 1
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 14 14
_______ ______ _____
35 86 121
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 19 73
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 9 56 363
8-10 a.m. 11 30 188
10-12 a.m. 33 97 843
12-2 p.m. 15 40 416
2-4 p.m. 17 42 265
4-6 p.m. 14 33 281
6-8 p.m. 1 4 38
8-10 p.m. 5 20 101
10-12 p.m. 11 101 401
__________ __________ __________ _________________
Total: 121 442 2,969
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 1 192 193
Davis 24 0 24
Irvine 80 0 80
Los Angeles 0 33 33
Riverside 0 0 0
San Diego 0 46 46
San Francisco 22 0 22
Santa Barbara 0 1 1
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 2 7 9
Other-Network UC n/a 33 33
_______ ______ _____
129 313 442
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 1,523 1,523
Davis 107 0 107
Irvine 626 0 626
Los Angeles 0 251 251
Riverside 0 0 0
San Diego 0 144 144
San Francisco 216 0 216
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 5 7 12
Other-Network UC n/a 90 90
_______ ______ _____
954 2,015 2,969
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 1.4
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) 11:25
Average session length (minutes:seconds) 15:14
Longest session recorded (minutes:seconds) 192:14
Average number of searches completed per session 3.6
Retrievals per search - median 2.0
Retrievals per search - average 758.1
Retrievals per search - standard deviation 4531.6
Percent of searches completed with 0 results 40.2%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 55.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 393 34.3%
DISPLAY (excluding automatic displays) 388 33.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 17 1.5%
EXPLAIN 9 0.8%
SET/RESET 43 3.7%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 49 4.3%
LOGON or LOGOFF 159 13.9%
COMMENT 0 0.0%
SAVE 52 4.5%
USE 0 0.0%
OTHER 36 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 28
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 192 39.1% 96 50.0% 17 76.9 269.7
TITLE WORD 54 11.0% 15 27.8% 3 94.2 341.9
EXACT TITLE 1 0.2% 0 0.0% 4 4.0 0.0
JOURNAL 14 2.9% 7 50.0% 8 3049.9 7289.6
EXACT JOURNAL 15 3.1% 3 20.0% 221 1735.8 2772.2
SUBJECT 56 11.4% 40 71.4% 1,396 6057.0 15350.2
EXACT SUBJECT 1 0.2% 0 0.0% 238 238.0 0.0
KEYWORD 65 13.2% 9 13.8% 174 3092.1 8646.7
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 4 0.8% 0 0.0% 14 20.5 23.2
ADDED 72 14.7% 72 100% 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 10 2.0% 5 50.0% 1,034 4046.0 7571.2
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 1 0.2% 0 0.0% 1,027 1027.0 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 2 0.4% 0 0.0% 13 12.5 6.4
EXACT PE 1 0.2% 0 0.0% 3 3.0 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 3 0.6% 1 33.3% 116 116.0 128.7
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 100 25.6% 78 78.0% 3 903.3 4156.1
Single 291 74.4% 92 31.6% 35 1534.6 6501.0
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 4.7%
SHORT 91.6%
LONG 0.0%
TAGS 0.0%
FIELDS 2.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.4%
COMMENTS 0.0%
Other 1.2%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 11.9%
Ten most frequent errors:
1. DISPLAY command - no FIND results 49.7%
2. NS command - no next screen 22.6%
3. First word of command is invalid 12.9%
4. FIND command with invalid index name 9.7%
5. DISPLAY command contains invalid word 1.9%
6. DISPLAY command-record numbers too large 1.3%
7. Add-on search, no index name after verb 0.6%
8. Command contains escape or arrow key 0.6%
9. 1243 0.6%
11. All others 0.0%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 33.3%
2. FIND (ABI DB) 22.2%
3. DISPLAY (ABI DB) 22.2%
4. COMMANDS (ABI/PSY DBS) 11.1%
5. MAIL 11.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with invalid index name 26.9%
2. First word of command is invalid 11.5%
3. FIND command retrieves >1 book 11.5%
4. DISPLAY command-first of >1 screen 11.5%
5. Help requested from SET DB command 11.5%
6. 3 HELP commands issued from same code 7.7%
7. DISPLAY command-complete in one screen 7.7%
8. DISPLAY command - no FIND results 3.8%
9. NS command - no next screen 3.8%
10. FIND command with zero results 3.8%
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)