MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/02/02 through 03/08/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 35 36
Davis 18 0 18
Irvine 10 0 10
Los Angeles 0 13 13
Riverside 1 1 2
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 1 1
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 31 31
_______ ______ _____
32 90 122
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 8 55
2-4 a.m. 1 2 0
4-6 a.m. 0 0 0
6-8 a.m. 4 8 22
8-10 a.m. 14 31 410
10-12 a.m. 19 42 270
12-2 p.m. 27 72 1,434
2-4 p.m. 15 49 494
4-6 p.m. 13 37 629
6-8 p.m. 13 20 187
8-10 p.m. 3 11 583
10-12 p.m. 12 95 712
__________ __________ __________ _________________
Total: 122 375 4,796
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 1 130 131
Davis 29 3 32
Irvine 27 0 27
Los Angeles 0 24 24
Riverside 2 3 5
San Diego 1 15 16
San Francisco 3 0 3
Santa Barbara 0 21 21
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 8 8
Los Alamos 0 0 0
Other - UC 0 7 7
Other-Network UC n/a 101 101
_______ ______ _____
63 312 375
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 560 565
Davis 124 45 169
Irvine 220 0 220
Los Angeles 0 251 251
Riverside 26 4 30
San Diego 0 128 128
San Francisco 50 0 50
Santa Barbara 0 500 500
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 173 173
Los Alamos 0 0 0
Other - UC 0 10 10
Other-Network UC n/a 2,700 2,700
_______ ______ _____
425 4,371 4,796
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
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
_________________________________________
Median session length (minutes:seconds) 6:35
Average session length (minutes:seconds) 10:45
Longest session recorded (minutes:seconds) 69:15
Average number of searches completed per session 3.1
Retrievals per search - median 2.0
Retrievals per search - average 1356.0
Retrievals per search - standard deviation 12512
Percent of searches completed with 0 results 35.7%
Percent of searches entered that are long 1.6%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 351 27.6%
DISPLAY (excluding automatic displays) 634 49.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 14 1.1%
EXPLAIN 11 0.9%
SET/RESET 59 4.6%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 24 1.9%
LOGON or LOGOFF 146 11.5%
COMMENT 0 0.0%
SAVE 9 0.7%
USE 0 0.0%
OTHER 24 1.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 34
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 141 32.0% 78 55.3% 8 35.3 96.1
TITLE WORD 41 9.3% 17 41.5% 6 707.0 3159.9
EXACT TITLE 6 1.4% 4 66.7% 19 18.5 24.7
JOURNAL 6 1.4% 2 33.3% 1,423 7331.5 12531.8
EXACT JOURNAL 13 3.0% 4 30.8% 7 133.8 359.4
SUBJECT 18 4.1% 6 33.3% 2,133 22666.4 59891.5
EXACT SUBJECT 2 0.5% 1 50.0% 10,942 10942.0 0.0
KEYWORD 116 26.4% 20 17.2% 82 1927.6 11447.4
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 11 2.5% 3 27.3% 10 319.8 820.5
ADDED 60 13.6% 55 91.7% 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 8 1.8% 3 37.5% 353 527.2 521.8
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 9 2.0% 2 22.2% 2 80.1 206.3
EXACT PE 8 1.8% 1 12.5% 2 8.6 14.1
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% 0 0.0% 362 362.0 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 25.4% 64 71.9% 2 753.4 3114.1
Single 262 74.6% 68 26.0% 33 2506.5 17301.5
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 1.4%
SHORT 90.0%
LONG 1.5%
TAGS 0.0%
FIELDS 3.6%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.8%
COMMENTS 0.0%
Other 0.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 11.6%
Ten most frequent errors:
1. DISPLAY command - no FIND results 34.1%
2. NS command - no next screen 24.6%
3. First word of command is invalid 20.4%
4. FIND command with invalid index name 9.0%
5. DISPLAY command contains invalid word 2.4%
6. Valid command at an inappropriate time 1.2%
7. PS command - no previous screen 1.2%
8. BROWSE command with invalid index name 1.2%
9. 419 1.2%
10. Command contains escape or arrow key 1.2%
11. All others 3.6%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 36.4%
2. GUIDE (ABI DB) 27.3%
3. COMMANDS (ABI/PSY DBS) 27.3%
4. MAGS TEXT 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with zero results 24.0%
2. FIND command with invalid index name 20.0%
3. Help requested from SET DB command 20.0%
4. First word of command is invalid 12.0%
5. DISPLAY command-first of >1 screen 12.0%
6. NS command - no next screen 4.0%
7. Add-on without index name after verb 4.0%
8. DISPLAY command - middle of >1 screen 4.0%
11. All others 0.0%
Ten most frequent SHOW requests:
1. 0.0%
2. 0.0%
3. 0.0%
4. 0.0%
5. 0.0%
6. 0.0%
7. 0.0%
8. 0.0%
9. 0.0%
10. 0.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)