MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/20/02 through 04/26/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 29 31
Davis 15 0 15
Irvine 11 0 11
Los Angeles 0 8 8
Riverside 0 0 0
San Diego 3 4 7
San Francisco 0 0 0
Santa Barbara 0 4 4
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 26 26
_______ ______ _____
33 73 106
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 57 44
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 3 12 32
8-10 a.m. 9 40 210
10-12 a.m. 24 64 498
12-2 p.m. 23 61 493
2-4 p.m. 20 40 152
4-6 p.m. 10 31 379
6-8 p.m. 5 13 330
8-10 p.m. 3 11 192
10-12 p.m. 7 8 74
__________ __________ __________ _________________
Total: 106 337 2,404
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 19 127 146
Davis 68 0 68
Irvine 35 0 35
Los Angeles 0 11 11
Riverside 0 0 0
San Diego 2 22 24
San Francisco 0 0 0
Santa Barbara 0 5 5
Santa Cruz 6 0 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 4 4
Other-Network UC n/a 38 38
_______ ______ _____
130 207 337
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 113 961 1,074
Davis 391 0 391
Irvine 184 0 184
Los Angeles 0 144 144
Riverside 0 0 0
San Diego 1 249 250
San Francisco 0 0 0
Santa Barbara 0 23 23
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 13 13
Other-Network UC n/a 323 323
_______ ______ _____
691 1,713 2,404
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 1.1
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) 8:35
Average session length (minutes:seconds) 11:43
Longest session recorded (minutes:seconds) 50:02
Average number of searches completed per session 3.2
Retrievals per search - median 1.0
Retrievals per search - average 1857.4
Retrievals per search - standard deviation 24488
Percent of searches completed with 0 results 40.4%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 297 31.9%
DISPLAY (excluding automatic displays) 344 36.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 20 2.1%
EXPLAIN 14 1.5%
SET/RESET 57 6.1%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 40 4.3%
LOGON or LOGOFF 118 12.7%
COMMENT 0 0.0%
SAVE 5 0.5%
USE 0 0.0%
OTHER 35 3.8%
2.1 Article Text
_________________
DISPLAY TEXT commands 22
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 161 42.4% 72 44.7% 7 32.6 96.0
TITLE WORD 47 12.4% 20 42.6% 3 32.6 121.5
EXACT TITLE 10 2.6% 7 70.0% 1 1.0 0.0
JOURNAL 7 1.8% 4 57.1% 204 443.3 573.7
EXACT JOURNAL 9 2.4% 5 55.6% 1,002 828.8 575.1
SUBJECT 27 7.1% 10 37.0% 4,180 6255.8 10844.3
EXACT SUBJECT 4 1.1% 0 0.0% 6,823 6822.5 2329.6
KEYWORD 31 8.2% 7 22.6% 94 20032.6 90950.0
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 7 1.8% 3 42.9% 6 11.0 11.3
ADDED 60 15.8% 55 91.7% 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 0 0.0% 0 0.0% 0 0.0 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 14 3.7% 1 7.1% 2 17.2 32.4
EXACT PE 3 0.8% 0 0.0% 5 7.3 7.8
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 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 82 27.6% 63 76.8% 1 3.6 6.3
Single 215 72.4% 58 27.0% 16 3968.0 35820.8
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 2.5%
SHORT 85.8%
LONG 1.7%
TAGS 0.0%
FIELDS 2.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 6.6%
COMMENTS 0.0%
Other 1.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 12.3%
Ten most frequent errors:
1. DISPLAY command - no FIND results 42.3%
2. First word of command is invalid 20.0%
3. NS command - no next screen 15.4%
4. FIND command with invalid index name 6.9%
5. BROWSE command with invalid index name 3.1%
6. DISPLAY command-record numbers too large 2.3%
7. PS command - no previous screen 2.3%
8. Search term missing from search command 2.3%
9. Invalid SET DATABASE command issued 0.8%
10. DISPLAY command contains invalid word 0.8%
11. All others 3.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 21.4%
2. Unrecognized term 21.4%
3. LOCATE (ARTICLE DBS) 14.3%
4. ADDON SEARCH 14.3%
5. FIND (ABI DB) 7.1%
6. B042 7.1%
7. MAIL 7.1%
8. DATABASES 7.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 20.6%
2. FIND command retrieves >1 book 17.6%
3. First word of command is invalid 14.7%
4. DISPLAY command - middle of >1 screen 11.8%
5. FIND command with invalid index name 8.8%
6. FIND command retrieves 1 book 8.8%
7. 15 5.9%
8. Add-on without index name after verb 2.9%
9. FIND command with zero results 2.9%
10. 243 2.9%
11. All others 2.9%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)