MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/15/01 through 09/21/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 29 34
Davis 17 0 17
Irvine 13 0 13
Los Angeles 0 23 23
Riverside 1 0 1
San Diego 2 7 9
San Francisco 3 0 3
Santa Barbara 1 1 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 61 61
_______ ______ _____
42 123 165
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 7 13
2-4 a.m. 1 1 18
4-6 a.m. 1 2 42
6-8 a.m. 10 29 207
8-10 a.m. 23 53 247
10-12 a.m. 37 71 1,392
12-2 p.m. 30 133 1,381
2-4 p.m. 33 96 1,219
4-6 p.m. 14 35 315
6-8 p.m. 6 11 145
8-10 p.m. 4 19 146
10-12 p.m. 4 19 1,111
__________ __________ __________ _________________
Total: 165 476 6,236
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 95 114
Davis 39 0 39
Irvine 24 0 24
Los Angeles 0 128 128
Riverside 5 0 5
San Diego 3 20 23
San Francisco 10 0 10
Santa Barbara 0 4 4
Santa Cruz 0 0 0
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 123 123
_______ ______ _____
100 376 476
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 104 1,819 1,923
Davis 412 0 412
Irvine 294 0 294
Los Angeles 0 1,562 1,562
Riverside 50 0 50
San Diego 0 204 204
San Francisco 149 0 149
Santa Barbara 0 1 1
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 260 260
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 1,381 1,381
_______ ______ _____
1,009 5,227 6,236
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
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Median session length (minutes:seconds) 9:18
Average session length (minutes:seconds) 13:25
Longest session recorded (minutes:seconds) 106:10
Average number of searches completed per session 2.9
Retrievals per search - median 5.0
Retrievals per search - average 537.1
Retrievals per search - standard deviation 3313.9
Percent of searches completed with 0 results 24.2%
Percent of searches entered that are long 3.8%
Percent of long searches completed
(includes partial results) 72.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 430 28.8%
DISPLAY (excluding automatic displays) 605 40.5%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 7 0.5%
EXPLAIN 17 1.1%
SET/RESET 86 5.8%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 46 3.1%
LOGON or LOGOFF 177 11.9%
COMMENT 0 0.0%
SAVE 83 5.6%
USE 0 0.0%
OTHER 41 2.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 56
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 10
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 168 34.9% 39 23.2% 6 24.1 49.7
TITLE WORD 95 19.8% 30 31.6% 9 71.0 311.1
EXACT TITLE 3 0.6% 0 0.0% 1 1.3 0.6
JOURNAL 12 2.5% 7 58.3% 75 3077.4 4815.2
EXACT JOURNAL 16 3.3% 8 50.0% 687 3880.6 5751.5
SUBJECT 25 5.2% 13 52.0% 371 7280.9 14101.6
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 122 25.4% 17 13.9% 70 1040.5 4229.6
PUB TYPE 1 0.2% 0 0.0% 326 326.0 0.0
DATE 22 4.6% 8 36.4% 14 16.6 14.4
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 2 0.4% 1 50.0% 35,385 35385.0 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% 36 36.0 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 7 1.5% 1 14.3% 19 22.7 22.3
EXACT PE 2 0.4% 0 0.0% 17 16.5 17.7
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 4 0.8% 0 0.0% 380 380.0 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 54 12.7% 23 42.6% 14 1214.6 6343.1
Single 372 87.3% 78 21.0% 18 725.1 3643.4
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 1 100% 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 3.5%
SHORT 88.2%
LONG 0.5%
TAGS 0.0%
FIELDS 4.1%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 2.7%
COMMENTS 0.0%
Other 0.8%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.9%
Ten most frequent errors:
1. NS command - no next screen 41.4%
2. First word of command is invalid 25.0%
3. FIND command with invalid index name 10.2%
4. DISPLAY command contains invalid word 4.7%
5. Search term missing from search command 3.9%
6. Command contains escape or arrow key 2.3%
7. SET DATE command with invalid range 1.6%
8. DISPLAY command - no FIND results 1.6%
9. SAVE command issued w/o record numbers 1.6%
10. Max. # of ports to a Z39 db are in use 1.6%
11. All others 6.3%
Ten most frequent EXPLAIN requests:
1. PUBLICATION TYPES (ABI DB) 17.6%
2. GUIDE (ABI DB) 11.8%
3. Unrecognized term 11.8%
4. MAGS TEXT 5.9%
5. ABI/INFORM DB 5.9%
6. INDEXES (ABI DB) 5.9%
7. FIND (ABI DB) 5.9%
8. MAIL 5.9%
9. LOCATE (ARTICLE DBS) 5.9%
10. G445 5.9%
11. All others 17.6%
Ten most frequent HELP situations:
1. DISPLAY command - no FIND results 29.2%
2. Help requested from SET DB command 25.0%
3. First word of command is invalid 12.5%
4. NS command - no next screen 8.3%
5. FIND command with invalid index name 4.2%
6. DISPLAY command-complete in one screen 4.2%
7. DISPLAY command-first of >1 screen 4.2%
8. DISPLAY command - last of >1 screen 4.2%
9. Help requested from MAIL command 4.2%
10. 725 4.2%
11. All others 0.0%
Ten most frequent SHOW requests:
1. 0.0%
2. 0.0%
3. 0.0%
4. 0.0%
5. 0.0%
6. 0.0%
7. 0.0%
8. 0.0%
9. 0.0%
10. 0.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)