MELVYL ABI DATABASE TELNET STATISTICS
Time period: 08/04/01 through 08/10/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 49 57
Davis 6 0 6
Irvine 9 0 9
Los Angeles 0 21 21
Riverside 0 2 2
San Diego 2 7 9
San Francisco 2 0 2
Santa Barbara 1 0 1
Santa Cruz 1 1 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 1 2
Other-Network UC n/a 49 49
_______ ______ _____
30 130 160
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 18 333
2-4 a.m. 0 0 0
4-6 a.m. 1 12 20
6-8 a.m. 11 29 157
8-10 a.m. 13 36 254
10-12 a.m. 33 87 935
12-2 p.m. 25 47 324
2-4 p.m. 36 124 1,690
4-6 p.m. 18 69 480
6-8 p.m. 11 27 330
8-10 p.m. 3 10 51
10-12 p.m. 4 9 59
__________ __________ __________ _________________
Total: 160 468 4,633
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 40 132 172
Davis 13 0 13
Irvine 20 0 20
Los Angeles 0 50 50
Riverside 0 7 7
San Diego 2 32 34
San Francisco 10 0 10
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 1 5 6
Other-Network UC n/a 154 154
_______ ______ _____
88 380 468
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 538 1,505 2,043
Davis 146 0 146
Irvine 162 0 162
Los Angeles 0 304 304
Riverside 0 211 211
San Diego 89 310 399
San Francisco 67 0 67
Santa Barbara 0 0 0
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 50 51
Other-Network UC n/a 1,249 1,249
_______ ______ _____
1,004 3,629 4,633
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 0.6
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) 10:16
Average session length (minutes:seconds) 12:19
Longest session recorded (minutes:seconds) 70:11
Average number of searches completed per session 2.9
Retrievals per search - median 4.0
Retrievals per search - average 165.3
Retrievals per search - standard deviation 1086.3
Percent of searches completed with 0 results 21.6%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 45.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 434 29.8%
DISPLAY (excluding automatic displays) 649 44.6%
BROWSE 2 0.1%
SELECT 0 0.0%
HELP 4 0.3%
EXPLAIN 12 0.8%
SET/RESET 73 5.0%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 34 2.3%
LOGON or LOGOFF 192 13.2%
COMMENT 0 0.0%
SAVE 17 1.2%
USE 1 0.1%
OTHER 37 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 56
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 11
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 134 28.9% 26 19.4% 8 36.1 77.4
TITLE WORD 135 29.2% 36 26.7% 5 48.4 120.1
EXACT TITLE 16 3.5% 6 37.5% 1 5.8 14.8
JOURNAL 14 3.0% 5 35.7% 8 567.1 1255.9
EXACT JOURNAL 5 1.1% 2 40.0% 129 296.3 397.4
SUBJECT 13 2.8% 6 46.2% 793 809.1 1026.6
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 71 15.3% 10 14.1% 31 843.8 2826.2
PUB TYPE 2 0.4% 0 0.0% 196 196.0 212.1
DATE 11 2.4% 2 18.2% 2 22.0 43.4
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 12 2.6% 2 16.7% 81 81.0 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 31 6.7% 1 3.2% 7 84.8 333.4
EXACT PE 19 4.1% 0 0.0% 7 14.0 19.4
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 34 7.9% 6 17.6% 2 50.9 160.8
Single 395 92.1% 84 21.3% 11 235.5 1316.1
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 2 100% 0 0.0% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.3%
SHORT 80.2%
LONG 1.0%
TAGS 0.0%
FIELDS 3.7%
BROWSE REVIEW 0.3%
BROWSE LONG 0.0%
PERIODICALS 9.5%
COMMENTS 0.0%
Other 1.0%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 8.5%
Ten most frequent errors:
1. First word of command is invalid 40.0%
2. NS command - no next screen 34.1%
3. Add-on search, no index name after verb 3.7%
4. DISPLAY command contains invalid word 3.0%
5. PS command - no previous screen 3.0%
6. Valid command at an inappropriate time 2.2%
7. Search term missing from search command 2.2%
8. Max. # of ports to a Z39 db are in use 2.2%
9. DATE search with unrecognized word 1.5%
10. 172 1.5%
11. All others 6.7%
Ten most frequent EXPLAIN requests:
1. Unrecognized term 33.3%
2. INDEXES (ABI DB) 16.7%
3. GUIDE (ABI DB) 8.3%
4. ABI/INFORM DB 8.3%
5. FIND (ABI DB) 8.3%
6. DATE (ABI DB) 8.3%
7. MAIL 8.3%
8. 1050 8.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 37.5%
2. DISPLAY command - middle of >1 screen 31.3%
3. DISPLAY command - last of >1 screen 25.0%
4. 117 6.3%
11. All others 0.0%
Ten most frequent SHOW requests:
1. MAIL SETTINGS 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)