MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/13/02 through 04/19/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 31 38
Davis 13 0 13
Irvine 5 0 5
Los Angeles 0 36 36
Riverside 0 0 0
San Diego 2 3 5
San Francisco 2 0 2
Santa Barbara 0 1 1
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 29 29
_______ ______ _____
30 102 132
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 69 31
2-4 a.m. 2 2 454
4-6 a.m. 0 0 0
6-8 a.m. 2 7 50
8-10 a.m. 21 30 268
10-12 a.m. 27 66 421
12-2 p.m. 18 41 477
2-4 p.m. 19 68 710
4-6 p.m. 19 67 559
6-8 p.m. 11 17 88
8-10 p.m. 3 6 115
10-12 p.m. 9 9 21
__________ __________ __________ _________________
Total: 132 382 3,194
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 17 168 185
Davis 36 0 36
Irvine 12 0 12
Los Angeles 0 71 71
Riverside 0 0 0
San Diego 4 9 13
San Francisco 7 0 7
Santa Barbara 0 4 4
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 8 8
Other-Network UC n/a 44 44
_______ ______ _____
77 305 382
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 265 1,199 1,464
Davis 227 0 227
Irvine 32 0 32
Los Angeles 0 714 714
Riverside 0 0 0
San Diego 7 47 54
San Francisco 60 0 60
Santa Barbara 0 1 1
Santa Cruz 6 0 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 10 10
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 624 624
_______ ______ _____
597 2,597 3,194
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 0.7
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) 11:34
Average session length (minutes:seconds) 31:55
Longest session recorded (minutes:seconds) 822:56
Average number of searches completed per session 2.9
Retrievals per search - median 1.0
Retrievals per search - average 1209.1
Retrievals per search - standard deviation 9385.1
Percent of searches completed with 0 results 42.5%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 80.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 336 28.4%
DISPLAY (excluding automatic displays) 465 39.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 13 1.1%
EXPLAIN 10 0.8%
SET/RESET 75 6.4%
SHOW 3 0.3%
ADD ON (AND, OR, AND NOT) 46 3.9%
LOGON or LOGOFF 139 11.8%
COMMENT 0 0.0%
SAVE 61 5.2%
USE 0 0.0%
OTHER 33 2.8%
2.1 Article Text
_________________
DISPLAY TEXT commands 36
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 5
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 152 35.5% 87 57.2% 9 44.0 120.3
TITLE WORD 79 18.5% 44 55.7% 4 34.8 82.0
EXACT TITLE 1 0.2% 0 0.0% 1 1.0 0.0
JOURNAL 12 2.8% 3 25.0% 292 865.4 1207.9
EXACT JOURNAL 11 2.6% 2 18.2% 225 711.8 790.3
SUBJECT 23 5.4% 9 39.1% 624 4934.0 10640.0
EXACT SUBJECT 2 0.5% 2 100% 0 0.0 0.0
KEYWORD 57 13.3% 5 8.8% 92 7035.8 24021.1
PUB TYPE 3 0.7% 1 33.3% 1 1.0 0.0
DATE 2 0.5% 0 0.0% 114 114.0 157.0
ADDED 72 16.8% 66 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 1 0.2% 1 100% 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 11 2.6% 1 9.1% 6 13.7 16.4
EXACT PE 1 0.2% 0 0.0% 1 1.0 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 1 0.2% 0 0.0% 317 317.0 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 94 28.1% 74 78.7% 2 26.5 55.0
Single 240 71.9% 73 30.4% 23 2711.6 14017.1
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 1.9%
SHORT 87.6%
LONG 1.6%
TAGS 0.0%
FIELDS 2.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 4.9%
COMMENTS 0.0%
Other 1.2%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 11.7%
Ten most frequent errors:
1. DISPLAY command - no FIND results 43.3%
2. NS command - no next screen 24.2%
3. First word of command is invalid 10.8%
4. FIND command with invalid index name 8.9%
5. Add-on search, no index name after verb 3.2%
6. DISPLAY command contains invalid word 2.5%
7. Search term missing from search command 1.9%
8. Invalid use of limit-only PUB type 1.3%
9. SET command with invalid setting 0.6%
10. 96 0.6%
11. All others 2.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 30.0%
2. ABI/INFORM DB 10.0%
3. INDEXES (ABI DB) 10.0%
4. PUBLICATION TYPES (ABI DB) 10.0%
5. DISPLAY (ABI DB) 10.0%
6. MAIL 10.0%
7. DATABASES 10.0%
8. ADDON SEARCH 10.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.4%
2. First word of command is invalid 17.4%
3. NS command - no next screen 13.0%
4. FIND command with invalid index name 13.0%
5. FIND command retrieves >1 book 13.0%
6. FIND command with zero results 4.3%
7. DISPLAY command-complete in one screen 4.3%
8. DISPLAY command-first of >1 screen 4.3%
11. All others 0.0%
Ten most frequent SHOW requests:
1. SEARCH 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)