MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/27/02 through 05/03/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 32 35
Davis 13 0 13
Irvine 9 0 9
Los Angeles 0 12 12
Riverside 0 0 0
San Diego 0 10 10
San Francisco 0 0 0
Santa Barbara 1 5 6
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 22 22
_______ ______ _____
26 85 111
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 51 58
2-4 a.m. 1 1 7
4-6 a.m. 2 7 21
6-8 a.m. 2 19 105
8-10 a.m. 14 48 303
10-12 a.m. 15 36 351
12-2 p.m. 9 22 796
2-4 p.m. 20 31 627
4-6 p.m. 26 82 1,472
6-8 p.m. 9 32 261
8-10 p.m. 2 5 147
10-12 p.m. 9 22 99
__________ __________ __________ _________________
Total: 111 356 4,247
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 1 153 154
Davis 51 0 51
Irvine 26 0 26
Los Angeles 0 42 42
Riverside 0 0 0
San Diego 0 24 24
San Francisco 0 0 0
Santa Barbara 2 10 12
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 5 5
Other-Network UC n/a 39 39
_______ ______ _____
82 274 356
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 156 1,336 1,492
Davis 452 0 452
Irvine 250 0 250
Los Angeles 0 164 164
Riverside 0 0 0
San Diego 0 344 344
San Francisco 0 0 0
Santa Barbara 8 102 110
Santa Cruz 5 0 5
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 14 14
Los Alamos 0 0 0
Other - UC 0 6 6
Other-Network UC n/a 1,410 1,410
_______ ______ _____
871 3,376 4,247
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 0.8
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) 7:28
Average session length (minutes:seconds) 14:44
Longest session recorded (minutes:seconds) 198:41
Average number of searches completed per session 3.2
Retrievals per search - median 3.0
Retrievals per search - average 1256.5
Retrievals per search - standard deviation 9397.8
Percent of searches completed with 0 results 33.8%
Percent of searches entered that are long 3.7%
Percent of long searches completed
(includes partial results) 69.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 321 27.0%
DISPLAY (excluding automatic displays) 522 43.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 24 2.0%
EXPLAIN 17 1.4%
SET/RESET 47 4.0%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 35 2.9%
LOGON or LOGOFF 134 11.3%
COMMENT 0 0.0%
SAVE 50 4.2%
USE 0 0.0%
OTHER 35 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 48
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 10
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 131 33.6% 62 47.3% 9 31.7 72.9
TITLE WORD 48 12.3% 24 50.0% 33 701.8 2020.2
EXACT TITLE 6 1.5% 5 83.3% 1 1.0 0.0
JOURNAL 12 3.1% 3 25.0% 2,663 6146.4 10160.9
EXACT JOURNAL 5 1.3% 2 40.0% 2,428 3743.0 4536.8
SUBJECT 23 5.9% 8 34.8% 1,783 7204.8 9390.3
EXACT SUBJECT 1 0.3% 0 0.0% 1,736 1736.0 0.0
KEYWORD 50 12.8% 3 6.0% 85 5352.0 24186.0
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 6 1.5% 0 0.0% 83 483.2 957.3
ADDED 60 15.4% 50 83.3% 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 6 1.5% 1 16.7% 231 206.6 85.6
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 2 0.5% 1 50.0% 202 202.0 0.0
PERIODICAL 39 10.0% 9 23.1% 8 19.1 38.2
EXACT PE 1 0.3% 0 0.0% 19 19.0 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 0 0.0% 0 0.0% 0 0.0 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 72 22.6% 51 70.8% 2 655.8 1893.2
Single 246 77.4% 66 26.8% 22 2356.2 13047.3
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 1.3%
SHORT 83.1%
LONG 2.1%
TAGS 0.0%
FIELDS 1.1%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 9.5%
COMMENTS 0.0%
Other 3.0%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 12.2%
Ten most frequent errors:
1. DISPLAY command - no FIND results 32.1%
2. NS command - no next screen 25.5%
3. First word of command is invalid 13.3%
4. FIND command with invalid index name 11.5%
5. DISPLAY command contains invalid word 3.0%
6. NS of SHOW/EXP command-no next screen 2.4%
7. Search term missing from search command 1.8%
8. PS command - no previous screen 1.2%
9. D LIST command issued; no list exists 1.2%
10. 422 1.2%
11. All others 6.7%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 17.6%
2. FIND (ABI DB) 17.6%
3. LOCATE (ARTICLE DBS) 11.8%
4. UPDATE SEARCH 11.8%
5. ADDON SEARCH 11.8%
6. GUIDE (ABI DB) 5.9%
7. ABI/INFORM DB 5.9%
8. COMMANDS (ABI/PSY DBS) 5.9%
9. B030 5.9%
10. 1667 5.9%
11. All others 0.0%
Ten most frequent HELP situations:
1. First word of command is invalid 19.5%
2. Help requested from SET DB command 14.6%
3. FIND command with invalid index name 12.2%
4. FIND command with zero results 9.8%
5. DISPLAY command - middle of >1 screen 9.8%
6. Multi-index search with zero results 7.3%
7. NS command - no next screen 4.9%
8. FIND command retrieves >1 book 4.9%
9. DISPLAY command-first of >1 screen 4.9%
10. SET DB command entered w/o modifier 2.4%
11. All others 9.8%
Ten most frequent SHOW requests:
1. SEARCH 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)