MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/31/01 through 04/06/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 49 52
Davis 19 0 19
Irvine 13 0 13
Los Angeles 0 17 17
Riverside 3 3 6
San Diego 3 18 21
San Francisco 8 0 8
Santa Barbara 0 6 6
Santa Cruz 1 0 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 51 51
_______ ______ _____
50 144 194
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 6 182
2-4 a.m. 3 4 14
4-6 a.m. 2 6 74
6-8 a.m. 6 20 429
8-10 a.m. 25 49 576
10-12 a.m. 30 66 413
12-2 p.m. 33 102 2,346
2-4 p.m. 26 90 1,301
4-6 p.m. 40 70 978
6-8 p.m. 16 31 107
8-10 p.m. 8 36 136
10-12 p.m. 2 7 130
__________ __________ __________ _________________
Total: 194 487 6,686
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 7 118 125
Davis 48 0 48
Irvine 22 0 22
Los Angeles 0 77 77
Riverside 4 3 7
San Diego 11 36 47
San Francisco 44 0 44
Santa Barbara 0 9 9
Santa Cruz 3 0 3
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 105 105
_______ ______ _____
139 348 487
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 34 3,363 3,397
Davis 500 0 500
Irvine 109 0 109
Los Angeles 0 360 360
Riverside 0 184 184
San Diego 15 350 365
San Francisco 217 0 217
Santa Barbara 0 176 176
Santa Cruz 11 0 11
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 1,367 1,367
_______ ______ _____
886 5,800 6,686
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 0.9
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) 9:45
Average session length (minutes:seconds) 12:20
Longest session recorded (minutes:seconds) 105:38
Average number of searches completed per session 2.5
Retrievals per search - median 8.0
Retrievals per search - average 534.1
Retrievals per search - standard deviation 3462.3
Percent of searches completed with 0 results 27.9%
Percent of searches entered that are long 5.1%
Percent of long searches completed
(includes partial results) 92.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 438 25.6%
DISPLAY (excluding automatic displays) 647 37.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 20 1.2%
EXPLAIN 23 1.3%
SET/RESET 74 4.3%
SHOW 3 0.2%
ADD ON (AND, OR, AND NOT) 49 2.9%
LOGON or LOGOFF 250 14.6%
COMMENT 0 0.0%
SAVE 158 9.2%
USE 1 0.1%
OTHER 46 2.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 38
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 7
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 139 29.3% 39 28.1% 10 35.1 124.7
TITLE WORD 112 23.6% 46 41.1% 20 327.8 1041.3
EXACT TITLE 17 3.6% 11 64.7% 3 12.2 16.8
JOURNAL 21 4.4% 6 28.6% 601 742.7 740.3
EXACT JOURNAL 16 3.4% 7 43.8% 251 4340.2 11893.4
SUBJECT 26 5.5% 4 15.4% 51 2954.5 11382.2
EXACT SUBJECT 2 0.4% 0 0.0% 673 672.5 948.2
KEYWORD 116 24.4% 8 6.9% 59 1082.3 3732.1
PUB TYPE 1 0.2% 0 0.0% 134 134.0 0.0
DATE 6 1.3% 0 0.0% 3 641.8 1555.5
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% 1 1.0 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 13 2.7% 4 30.8% 5 23.4 34.0
EXACT PE 5 1.1% 0 0.0% 17 19.0 19.5
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 40 9.2% 11 27.5% 12 225.2 720.7
Single 395 90.8% 103 26.1% 25 855.8 4424.4
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 3.1%
SHORT 88.6%
LONG 1.0%
TAGS 0.0%
FIELDS 3.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.6%
COMMENTS 0.0%
Other 1.5%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 6.7%
Ten most frequent errors:
1. NS command - no next screen 42.6%
2. First word of command is invalid 23.0%
3. FIND command with invalid index name 11.5%
4. DISPLAY command contains invalid word 4.9%
5. PS command - no previous screen 4.1%
6. DISPLAY command - no FIND results 1.6%
7. Add-on search, no index name after verb 1.6%
8. No previous search for BACKUP 1.6%
9. 434 1.6%
10. 28 0.8%
11. All others 6.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 13.0%
2. FIND (ABI DB) 13.0%
3. B034 13.0%
4. INDEXES (ABI DB) 8.7%
5. DATABASES 8.7%
6. COMMANDS (ABI/PSY DBS) 4.3%
7. DATE (ABI DB) 4.3%
8. PUBLICATION TYPES (ABI DB) 4.3%
9. DISPLAY (ABI DB) 4.3%
10. B087 4.3%
11. All others 21.7%
Ten most frequent HELP situations:
1. FIND command with zero results 32.6%
2. Help requested from SET DB command 18.6%
3. FIND command with invalid index name 11.6%
4. DISPLAY command - middle of >1 screen 9.3%
5. First word of command is invalid 4.7%
6. DISPLAY command-first of >1 screen 4.7%
7. 725 4.7%
8. DISPLAY command contains invalid word 2.3%
9. 170 2.3%
10. DISPLAY command-complete in one screen 2.3%
11. All others 7.0%
Ten most frequent SHOW requests:
1. HISTORY 66.7%
2. MAIL STATUS 33.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)