MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/08/02 through 06/14/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 33 35
Davis 9 0 9
Irvine 6 0 6
Los Angeles 0 14 14
Riverside 0 1 1
San Diego 2 1 3
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 8 8
_______ ______ _____
19 58 77
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 9 72
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 1 1 22
8-10 a.m. 13 36 264
10-12 a.m. 23 71 986
12-2 p.m. 15 37 748
2-4 p.m. 7 28 229
4-6 p.m. 7 14 186
6-8 p.m. 3 7 25
8-10 p.m. 1 7 150
10-12 p.m. 5 56 0
__________ __________ __________ _________________
Total: 77 266 2,682
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 4 135 139
Davis 33 0 33
Irvine 18 0 18
Los Angeles 0 32 32
Riverside 0 0 0
San Diego 18 3 21
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 20 20
_______ ______ _____
75 191 266
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 947 954
Davis 426 0 426
Irvine 157 0 157
Los Angeles 0 314 314
Riverside 0 0 0
San Diego 543 62 605
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 3 0 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 41 41
Other-Network UC n/a 182 182
_______ ______ _____
1,136 1,546 2,682
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 1.6
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) 6:32
Average session length (minutes:seconds) 13:00
Longest session recorded (minutes:seconds) 93:38
Average number of searches completed per session 3.4
Retrievals per search - median 4.0
Retrievals per search - average 1517.8
Retrievals per search - standard deviation 8252.9
Percent of searches completed with 0 results 38.9%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 85.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 239 29.1%
DISPLAY (excluding automatic displays) 340 41.5%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 17 2.1%
EXPLAIN 11 1.3%
SET/RESET 19 2.3%
SHOW 4 0.5%
ADD ON (AND, OR, AND NOT) 27 3.3%
LOGON or LOGOFF 119 14.5%
COMMENT 0 0.0%
SAVE 17 2.1%
USE 0 0.0%
OTHER 27 3.3%
2.1 Article Text
_________________
DISPLAY TEXT commands 39
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 0
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 104 33.9% 68 65.4% 15 20.6 18.5
TITLE WORD 37 12.1% 9 24.3% 19 69.5 141.1
EXACT TITLE 2 0.7% 1 50.0% 1 1.0 0.0
JOURNAL 3 1.0% 0 0.0% 4,273 3237.7 2729.5
EXACT JOURNAL 0 0.0% 0 0.0% 0 0.0 0.0
SUBJECT 21 6.8% 9 42.9% 93 18914.3 33121.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 72 23.4% 10 13.9% 75 2418.9 5417.4
PUB TYPE 1 0.3% 0 0.0% 532 532.0 0.0
DATE 1 0.3% 0 0.0% 19 19.0 0.0
ADDED 60 19.5% 60 100% 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 3 1.0% 0 0.0% 2,539 2539.0 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 2 0.7% 1 50.0% 2,224 2224.0 0.0
PERIODICAL 1 0.3% 0 0.0% 8 8.0 0.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 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 69 29.0% 61 88.4% 12 91.0 184.3
Single 169 71.0% 36 21.3% 36 2994.6 11478.6
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 0.5%
SHORT 95.2%
LONG 0.7%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.5%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 17.0%
Ten most frequent errors:
1. DISPLAY command - no FIND results 36.3%
2. NS command - no next screen 28.0%
3. First word of command is invalid 16.1%
4. FIND command with invalid index name 4.8%
5. DISPLAY command contains invalid word 3.6%
6. Add-on search, no index name after verb 2.4%
7. PS command - no previous screen 1.8%
8. Invalid SET DATABASE command issued 1.2%
9. Search term missing from search command 1.2%
10. SET DB command entered w/o modifier 0.6%
11. All others 4.2%
Ten most frequent EXPLAIN requests:
1. ADDON SEARCH 27.3%
2. GUIDE (ABI DB) 18.2%
3. LOCATE (ARTICLE DBS) 18.2%
4. ABI/INFORM DB 9.1%
5. FIND (ABI DB) 9.1%
6. SUBJECT INDEX (ABI DB) 9.1%
7. PRINT 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command retrieves >1 book 21.4%
2. Help requested from SET DB command 17.9%
3. First word of command is invalid 14.3%
4. DISPLAY command-complete in one screen 14.3%
5. DISPLAY command-first of >1 screen 10.7%
6. DISPLAY command - last of >1 screen 10.7%
7. FIND command with zero results 7.1%
8. 15 3.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. SEARCH 50.0%
2. FIND DISPLAY 25.0%
3. HISTORY 25.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)