MELVYL ABI DATABASE TELNET STATISTICS
Time period: 11/10/01 through 11/16/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 43 47
Davis 25 0 25
Irvine 25 0 25
Los Angeles 0 18 18
Riverside 1 0 1
San Diego 1 3 4
San Francisco 8 0 8
Santa Barbara 0 3 3
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 32 32
_______ ______ _____
65 100 165
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 15 94
2-4 a.m. 2 2 26
4-6 a.m. 2 13 83
6-8 a.m. 5 15 66
8-10 a.m. 18 54 279
10-12 a.m. 32 129 550
12-2 p.m. 30 122 483
2-4 p.m. 21 66 588
4-6 p.m. 20 58 518
6-8 p.m. 19 69 785
8-10 p.m. 6 34 293
10-12 p.m. 6 32 506
__________ __________ __________ _________________
Total: 165 609 4,271
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 4 234 238
Davis 77 0 77
Irvine 90 0 90
Los Angeles 0 55 55
Riverside 0 0 0
San Diego 0 4 4
San Francisco 44 0 44
Santa Barbara 0 12 12
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 6 6
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 81 81
_______ ______ _____
217 392 609
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 32 1,659 1,691
Davis 280 0 280
Irvine 724 0 724
Los Angeles 0 205 205
Riverside 0 0 0
San Diego 0 61 61
San Francisco 185 0 185
Santa Barbara 0 157 157
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 58 58
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 910 910
_______ ______ _____
1,221 3,050 4,271
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 1.0
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) 12:02
Longest session recorded (minutes:seconds) 77:21
Average number of searches completed per session 3.7
Retrievals per search - median 4.0
Retrievals per search - average 1568.8
Retrievals per search - standard deviation 17477
Percent of searches completed with 0 results 30.1%
Percent of searches entered that are long 1.6%
Percent of long searches completed
(includes partial results) 60.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 522 30.0%
DISPLAY (excluding automatic displays) 690 39.7%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 24 1.4%
EXPLAIN 15 0.9%
SET/RESET 83 4.8%
SHOW 7 0.4%
ADD ON (AND, OR, AND NOT) 87 5.0%
LOGON or LOGOFF 190 10.9%
COMMENT 0 0.0%
SAVE 77 4.4%
USE 0 0.0%
OTHER 44 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 67
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 3
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 173 30.3% 52 30.1% 5 56.0 291.3
TITLE WORD 106 18.6% 40 37.7% 3 15.8 36.7
EXACT TITLE 11 1.9% 4 36.4% 424 245.1 223.1
JOURNAL 23 4.0% 15 65.2% 1,160 2165.3 2249.2
EXACT JOURNAL 26 4.6% 9 34.6% 1,990 4998.7 10978.4
SUBJECT 42 7.4% 21 50.0% 24 270.2 550.1
EXACT SUBJECT 9 1.6% 0 0.0% 8,045 13759.6 18313.3
KEYWORD 135 23.7% 29 21.5% 32 6185.7 40795.2
PUB TYPE 1 0.2% 0 0.0% 66 66.0 0.0
DATE 14 2.5% 5 35.7% 6 17.6 33.4
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 2 0.4% 0 0.0% 2,671 2671.0 3776.0
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 2.3% 0 0.0% 7 25.3 51.4
EXACT PE 12 2.1% 2 16.7% 3 5.4 5.6
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 3 0.5% 1 33.3% 1,346 1346.0 1185.1
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 47 9.0% 17 36.2% 3 99.8 404.5
Single 473 91.0% 142 30.0% 15 2718.0 23562.4
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 1.0%
SHORT 91.3%
LONG 0.6%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.9%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 6.9%
Ten most frequent errors:
1. NS command - no next screen 45.3%
2. First word of command is invalid 27.3%
3. FIND command with invalid index name 6.3%
4. Valid command at an inappropriate time 3.1%
5. DISPLAY command contains invalid word 2.3%
6. PS command - no previous screen 2.3%
7. 1243 1.6%
8. SHOW command contains invalid word 0.8%
9. SET DB command entered w/o modifier 0.8%
10. DISPLAY command - no FIND results 0.8%
11. All others 9.4%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 40.0%
2. INDEXES (ABI DB) 20.0%
3. ADDON SEARCH 13.3%
4. ABI/INFORM DB 6.7%
5. FIND (ABI DB) 6.7%
6. PUBLICATION TYPES (ABI DB) 6.7%
7. MAIL 6.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 25.6%
2. First word of command is invalid 12.8%
3. DISPLAY command - middle of >1 screen 10.3%
4. NS command - no next screen 7.7%
5. FIND command with zero results 7.7%
6. FIND command retrieves >1 book 7.7%
7. DISPLAY command-complete in one screen 7.7%
8. SHOW command with invalid modifier 2.6%
9. SET DB command entered w/o modifier 2.6%
10. 132 2.6%
11. All others 12.8%
Ten most frequent SHOW requests:
1. HISTORY 71.4%
2. SEARCH 28.6%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)