MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/11/02 through 05/17/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 21 24
Davis 15 0 15
Irvine 10 0 10
Los Angeles 0 14 14
Riverside 0 0 0
San Diego 2 4 6
San Francisco 0 0 0
Santa Barbara 2 2 4
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 13 13
_______ ______ _____
32 55 87
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 9 0
2-4 a.m. 1 1 99
4-6 a.m. 0 0 0
6-8 a.m. 7 7 53
8-10 a.m. 9 58 344
10-12 a.m. 13 69 1,040
12-2 p.m. 8 20 968
2-4 p.m. 13 60 1,073
4-6 p.m. 10 66 325
6-8 p.m. 9 28 471
8-10 p.m. 10 30 720
10-12 p.m. 7 72 20
__________ __________ __________ _________________
Total: 87 420 5,113
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 31 109 140
Davis 118 0 118
Irvine 39 0 39
Los Angeles 0 54 54
Riverside 0 0 0
San Diego 2 17 19
San Francisco 0 0 0
Santa Barbara 8 3 11
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 38 38
_______ ______ _____
198 222 420
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 783 442 1,225
Davis 1,295 0 1,295
Irvine 206 0 206
Los Angeles 0 1,716 1,716
Riverside 0 0 0
San Diego 2 88 90
San Francisco 0 0 0
Santa Barbara 128 0 128
Santa Cruz 0 2 2
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 451 451
_______ ______ _____
2,414 2,699 5,113
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 1.4
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) 8:57
Average session length (minutes:seconds) 19:00
Longest session recorded (minutes:seconds) 206:26
Average number of searches completed per session 4.8
Retrievals per search - median 3.0
Retrievals per search - average 341.1
Retrievals per search - standard deviation 1834.8
Percent of searches completed with 0 results 35.9%
Percent of searches entered that are long 1.7%
Percent of long searches completed
(includes partial results) 28.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 394 32.2%
DISPLAY (excluding automatic displays) 599 48.9%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 9 0.7%
EXPLAIN 11 0.9%
SET/RESET 30 2.4%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 26 2.1%
LOGON or LOGOFF 112 9.1%
COMMENT 0 0.0%
SAVE 25 2.0%
USE 0 0.0%
OTHER 19 1.6%
2.1 Article Text
_________________
DISPLAY TEXT commands 69
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 167 34.0% 101 60.5% 13 102.5 382.9
TITLE WORD 58 11.8% 15 25.9% 11 76.1 145.6
EXACT TITLE 2 0.4% 2 100% 0 0.0 0.0
JOURNAL 13 2.6% 2 15.4% 5 10.1 11.4
EXACT JOURNAL 12 2.4% 3 25.0% 327 769.3 1027.2
SUBJECT 19 3.9% 3 15.8% 209 947.1 2525.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 98 20.0% 13 13.3% 49 933.3 3382.8
PUB TYPE 3 0.6% 1 33.3% 184 184.0 99.0
DATE 4 0.8% 0 0.0% 3 6.5 8.3
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 6 1.2% 3 50.0% 181 151.3 117.3
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 30 6.1% 0 0.0% 3 224.8 1122.7
EXACT PE 6 1.2% 1 16.7% 13 12.6 9.8
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 1 0.2% 0 0.0% 895 895.0 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 102 26.2% 73 71.6% 6 53.8 106.3
Single 287 73.8% 70 24.4% 21 539.1 2303.0
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 1 100% 0 0.0% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.6%
SHORT 79.6%
LONG 0.6%
TAGS 0.0%
FIELDS 2.2%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 9.2%
COMMENTS 0.0%
Other 0.6%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 12.9%
Ten most frequent errors:
1. DISPLAY command - no FIND results 40.9%
2. NS command - no next screen 22.7%
3. First word of command is invalid 14.4%
4. FIND command with invalid index name 7.2%
5. DISPLAY command contains invalid word 2.2%
6. SHOW command contains invalid word 1.7%
7. Valid command at an inappropriate time 1.1%
8. DISPLAY command-record numbers too large 1.1%
9. Search term missing from search command 1.1%
10. DATE search with unrecognized word 1.1%
11. All others 6.6%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 27.3%
2. GUIDE (ABI DB) 18.2%
3. FIND (ABI DB) 18.2%
4. COMMANDS (ABI/PSY DBS) 9.1%
5. B042 9.1%
6. DISPLAY (ABI DB) 9.1%
7. MAIL 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with invalid index name 25.0%
2. Help requested from SET DB command 25.0%
3. First word of command is invalid 10.0%
4. DISPLAY command - last of >1 screen 10.0%
5. F/BR with index invalid in current DB 10.0%
6. FIND command with zero results 5.0%
7. FIND command retrieves >1 book 5.0%
8. 351 5.0%
9. Help from invalid subsystem request 5.0%
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)