MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/16/02 through 03/22/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 31 32
Davis 8 0 8
Irvine 16 0 16
Los Angeles 0 28 28
Riverside 0 0 0
San Diego 1 4 5
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 26 26
_______ ______ _____
26 93 119
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 9 83
2-4 a.m. 0 17 236
4-6 a.m. 0 0 0
6-8 a.m. 5 11 66
8-10 a.m. 18 67 619
10-12 a.m. 33 90 921
12-2 p.m. 14 52 452
2-4 p.m. 21 65 674
4-6 p.m. 10 27 499
6-8 p.m. 6 17 175
8-10 p.m. 4 10 90
10-12 p.m. 6 72 0
__________ __________ __________ _________________
Total: 119 437 3,815
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 1 201 202
Davis 18 0 18
Irvine 44 0 44
Los Angeles 0 88 88
Riverside 0 0 0
San Diego 3 8 11
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 1 5 6
Other-Network UC n/a 61 61
_______ ______ _____
67 370 437
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 149 1,402 1,551
Davis 192 0 192
Irvine 544 0 544
Los Angeles 0 773 773
Riverside 0 0 0
San Diego 0 18 18
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 152 152
Los Alamos 0 0 0
Other - UC 1 71 72
Other-Network UC n/a 513 513
_______ ______ _____
886 2,929 3,815
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 0.7
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) 11:35
Average session length (minutes:seconds) 15:50
Longest session recorded (minutes:seconds) 116:43
Average number of searches completed per session 3.7
Retrievals per search - median 3.0
Retrievals per search - average 241.8
Retrievals per search - standard deviation 2308.9
Percent of searches completed with 0 results 34.0%
Percent of searches entered that are long 3.2%
Percent of long searches completed
(includes partial results) 85.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 400 30.3%
DISPLAY (excluding automatic displays) 590 44.7%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 16 1.2%
EXPLAIN 7 0.5%
SET/RESET 45 3.4%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 37 2.8%
LOGON or LOGOFF 158 12.0%
COMMENT 0 0.0%
SAVE 32 2.4%
USE 0 0.0%
OTHER 32 2.4%
2.1 Article Text
_________________
DISPLAY TEXT commands 57
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 6
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 172 34.0% 93 54.1% 14 49.0 123.1
TITLE WORD 87 17.2% 24 27.6% 10 203.6 764.9
EXACT TITLE 5 1.0% 3 60.0% 11 11.0 14.1
JOURNAL 14 2.8% 4 28.6% 34 533.7 790.5
EXACT JOURNAL 2 0.4% 0 0.0% 400 399.5 563.6
SUBJECT 10 2.0% 6 60.0% 3,974 3173.0 2222.9
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 52 10.3% 6 11.5% 154 1477.7 6885.9
PUB TYPE 1 0.2% 0 0.0% 409 409.0 0.0
DATE 21 4.2% 6 28.6% 3 368.4 684.6
ADDED 72 14.2% 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 15 3.0% 0 0.0% 24 20.2 6.6
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 46 9.1% 6 13.0% 3 15.5 53.4
EXACT PE 7 1.4% 1 14.3% 3 8.2 10.8
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 2 0.4% 1 50.0% 8 8.0 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 106 26.6% 81 76.4% 7 235.4 550.0
Single 292 73.4% 60 20.5% 14 425.3 3147.4
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 1.9%
SHORT 81.0%
LONG 0.3%
TAGS 0.0%
FIELDS 3.9%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 11.4%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 12.7%
Ten most frequent errors:
1. DISPLAY command - no FIND results 37.5%
2. NS command - no next screen 26.0%
3. First word of command is invalid 13.5%
4. FIND command with invalid index name 5.7%
5. DISPLAY command contains invalid word 4.2%
6. PS command - no previous screen 2.6%
7. Valid command at an inappropriate time 1.6%
8. DISPLAY command-record numbers too large 1.0%
9. Search term missing from search command 1.0%
10. 177 1.0%
11. All others 5.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 57.1%
2. FIND (ABI DB) 14.3%
3. MAIL 14.3%
4. PASSWORDS 14.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 17.4%
2. FIND command with invalid index name 17.4%
3. Help requested from SET DB command 17.4%
4. DISPLAY command - middle of >1 screen 13.0%
5. 3 HELP commands issued from same code 8.7%
6. Multi-index search with zero results 8.7%
7. Help requested from MAIL command 8.7%
8. FIND command with zero results 4.3%
9. DISPLAY command-first of >1 screen 4.3%
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)