MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/13/01 through 10/19/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 36 42
Davis 21 0 21
Irvine 21 0 21
Los Angeles 1 20 21
Riverside 2 0 2
San Diego 1 8 9
San Francisco 5 0 5
Santa Barbara 0 5 5
Santa Cruz 0 1 1
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 50 50
_______ ______ _____
57 120 177
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 1 29
2-4 a.m. 0 0 0
4-6 a.m. 1 19 120
6-8 a.m. 5 24 233
8-10 a.m. 13 38 300
10-12 a.m. 36 120 922
12-2 p.m. 30 73 734
2-4 p.m. 31 71 715
4-6 p.m. 21 86 985
6-8 p.m. 14 54 1,105
8-10 p.m. 19 34 370
10-12 p.m. 6 10 107
__________ __________ __________ _________________
Total: 177 530 5,620
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 22 103 125
Davis 76 0 76
Irvine 61 0 61
Los Angeles 2 57 59
Riverside 6 0 6
San Diego 4 20 24
San Francisco 22 0 22
Santa Barbara 0 29 29
Santa Cruz 0 5 5
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 123 123
_______ ______ _____
193 337 530
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 315 1,391 1,706
Davis 391 0 391
Irvine 1,150 0 1,150
Los Angeles 17 583 600
Riverside 40 0 40
San Diego 1 185 186
San Francisco 450 0 450
Santa Barbara 0 208 208
Santa Cruz 0 28 28
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 861 861
_______ ______ _____
2,364 3,256 5,620
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 0.6
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) 13:35
Average session length (minutes:seconds) 16:20
Longest session recorded (minutes:seconds) 87:17
Average number of searches completed per session 3.0
Retrievals per search - median 5.0
Retrievals per search - average 429.2
Retrievals per search - standard deviation 3475.9
Percent of searches completed with 0 results 23.6%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 63.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 486 29.2%
DISPLAY (excluding automatic displays) 745 44.8%
BROWSE 8 0.5%
SELECT 0 0.0%
HELP 20 1.2%
EXPLAIN 30 1.8%
SET/RESET 82 4.9%
SHOW 2 0.1%
ADD ON (AND, OR, AND NOT) 44 2.6%
LOGON or LOGOFF 203 12.2%
COMMENT 0 0.0%
SAVE 9 0.5%
USE 0 0.0%
OTHER 43 2.6%
2.1 Article Text
_________________
DISPLAY TEXT commands 77
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 12
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 130 24.8% 24 18.5% 12 79.2 250.0
TITLE WORD 99 18.9% 34 34.3% 5 41.4 100.7
EXACT TITLE 13 2.5% 7 53.8% 6 7.2 7.0
JOURNAL 24 4.6% 9 37.5% 1,168 7530.6 17966.6
EXACT JOURNAL 8 1.5% 3 37.5% 571 2336.0 4094.7
SUBJECT 25 4.8% 16 64.0% 393 3173.2 5106.5
EXACT SUBJECT 2 0.4% 1 50.0% 422 422.0 0.0
KEYWORD 144 27.4% 21 14.6% 31 477.3 2289.1
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 20 3.8% 3 15.0% 16 116.0 223.2
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 1 0.2% 0 0.0% 4 4.0 0.0
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 32 6.1% 2 6.3% 4 14.5 27.9
EXACT PE 26 5.0% 1 3.8% 3 10.2 17.7
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% 9,576 9576.0 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 40 8.3% 9 22.5% 4 373.4 1716.6
Single 443 91.7% 103 23.3% 14 625.1 4281.2
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 8 100% 1 12.5% 1 1.6 1.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.6%
SHORT 83.2%
LONG 1.6%
TAGS 0.1%
FIELDS 1.9%
BROWSE REVIEW 0.5%
BROWSE LONG 0.0%
PERIODICALS 8.6%
COMMENTS 0.0%
Other 1.5%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 7.6%
Ten most frequent errors:
1. NS command - no next screen 38.7%
2. First word of command is invalid 30.7%
3. FIND command with invalid index name 7.3%
4. DISPLAY command contains invalid word 5.8%
5. DISPLAY command-record numbers too large 2.2%
6. DATE search with unrecognized word 2.2%
7. BROWSE command with invalid index name 1.5%
8. Invalid number in DISPLAY command 1.5%
9. Valid command at an inappropriate time 0.7%
10. SET command with invalid setting 0.7%
11. All others 8.8%
Ten most frequent EXPLAIN requests:
1. FIND (ABI DB) 26.7%
2. INDEXES (ABI DB) 13.3%
3. B042 13.3%
4. GUIDE (ABI DB) 10.0%
5. COMMANDS (ABI/PSY DBS) 10.0%
6. MAIL 6.7%
7. DATE (ABI DB) 3.3%
8. DISPLAY (ABI DB) 3.3%
9. B089 3.3%
10. LOCATE (ARTICLE DBS) 3.3%
11. All others 6.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.0%
2. First word of command is invalid 18.0%
3. DISPLAY command-first of >1 screen 14.0%
4. FIND command with zero results 8.0%
5. DISPLAY command - middle of >1 screen 6.0%
6. Multi-index search with zero results 6.0%
7. BROWSE command with invalid index name 4.0%
8. F/BR with index invalid in current DB 4.0%
9. SET DB command entered w/o modifier 2.0%
10. FIND command with invalid index name 2.0%
11. All others 6.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)