MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/21/01 through 04/27/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 66 73
Davis 18 0 18
Irvine 16 0 16
Los Angeles 0 32 32
Riverside 7 3 10
San Diego 3 7 10
San Francisco 5 0 5
Santa Barbara 0 0 0
Santa Cruz 7 0 7
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 44 44
_______ ______ _____
63 153 216
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 33 397
2-4 a.m. 2 11 100
4-6 a.m. 1 6 17
6-8 a.m. 2 2 67
8-10 a.m. 21 53 243
10-12 a.m. 24 63 1,135
12-2 p.m. 47 151 962
2-4 p.m. 43 182 1,576
4-6 p.m. 44 125 1,113
6-8 p.m. 10 18 224
8-10 p.m. 14 52 1,140
10-12 p.m. 7 26 872
__________ __________ __________ _________________
Total: 216 722 7,846
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 42 308 350
Davis 53 0 53
Irvine 35 0 35
Los Angeles 0 127 127
Riverside 7 12 19
San Diego 8 17 25
San Francisco 18 0 18
Santa Barbara 0 0 0
Santa Cruz 12 0 12
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 1 0 1
Other-Network UC n/a 81 81
_______ ______ _____
176 546 722
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 364 2,332 2,696
Davis 1,769 0 1,769
Irvine 355 0 355
Los Angeles 0 1,618 1,618
Riverside 125 102 227
San Diego 55 205 260
San Francisco 297 0 297
Santa Barbara 0 0 0
Santa Cruz 55 0 55
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 110 110
Los Alamos 0 0 0
Other - UC 1 0 1
Other-Network UC n/a 458 458
_______ ______ _____
3,021 4,825 7,846
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 2.0
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) 10:25
Average session length (minutes:seconds) 11:23
Longest session recorded (minutes:seconds) 48:03
Average number of searches completed per session 3.3
Retrievals per search - median 7.0
Retrievals per search - average 1826.9
Retrievals per search - standard deviation 15404
Percent of searches completed with 0 results 26.9%
Percent of searches entered that are long 3.0%
Percent of long searches completed
(includes partial results) 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 658 29.3%
DISPLAY (excluding automatic displays) 930 41.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 40 1.8%
EXPLAIN 20 0.9%
SET/RESET 90 4.0%
SHOW 7 0.3%
ADD ON (AND, OR, AND NOT) 64 2.8%
LOGON or LOGOFF 275 12.2%
COMMENT 0 0.0%
SAVE 92 4.1%
USE 0 0.0%
OTHER 70 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 105
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 15
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 164 22.1% 48 29.3% 12 77.7 293.5
TITLE WORD 147 19.8% 40 27.2% 10 192.8 1299.6
EXACT TITLE 19 2.6% 13 68.4% 30 53.3 57.7
JOURNAL 45 6.1% 6 13.3% 26 1963.8 5648.5
EXACT JOURNAL 5 0.7% 1 20.0% 735 965.8 1016.9
SUBJECT 79 10.7% 47 59.5% 456 14589.8 45199.7
EXACT SUBJECT 1 0.1% 0 0.0% 1,952 1952.0 0.0
KEYWORD 221 29.8% 34 15.4% 34 2445.0 18516.6
PUB TYPE 1 0.1% 0 0.0% 2 2.0 0.0
DATE 31 4.2% 11 35.5% 5 26.2 43.2
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 1 0.1% 0 0.0% 242 242.0 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 4 0.5% 0 0.0% 170 170.0 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 13 1.8% 1 7.7% 4 19.2 41.6
EXACT PE 5 0.7% 0 0.0% 3 3.0 1.6
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 5 0.7% 3 60.0% 156 156.0 217.8
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 91 14.0% 24 26.4% 4 236.3 1638.2
Single 558 86.0% 156 28.0% 28 2504.4 18261.1
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 1.5%
SHORT 89.0%
LONG 0.7%
TAGS 0.0%
FIELDS 3.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.3%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 9.0%
Ten most frequent errors:
1. NS command - no next screen 35.9%
2. First word of command is invalid 28.3%
3. FIND command with invalid index name 13.9%
4. DISPLAY command contains invalid word 4.0%
5. Valid command at an inappropriate time 3.6%
6. PS command - no previous screen 1.8%
7. Search term missing from search command 1.8%
8. DISPLAY command - no FIND results 1.3%
9. DISPLAY command-record numbers too large 1.3%
10. Command contains escape or arrow key 1.3%
11. All others 6.7%
Ten most frequent EXPLAIN requests:
1. FIND (ABI DB) 30.0%
2. GUIDE (ABI DB) 20.0%
3. COMMANDS (ABI/PSY DBS) 15.0%
4. INDEXES (ABI DB) 10.0%
5. LOCATE (ARTICLE DBS) 10.0%
6. MAGS TEXT 5.0%
7. B030 5.0%
8. MAIL 5.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 35.0%
2. FIND command with invalid index name 16.7%
3. First word of command is invalid 13.3%
4. FIND command with zero results 8.3%
5. DISPLAY command - last of >1 screen 8.3%
6. DISPLAY command-first of >1 screen 6.7%
7. NS command - no next screen 3.3%
8. Valid command at an inappropriate time 1.7%
9. PS command - no previous screen 1.7%
10. 178 1.7%
11. All others 3.3%
Ten most frequent SHOW requests:
1. SEARCH 50.0%
2. HISTORY 33.3%
3. DATABASES 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)