MELVYL ABI DATABASE TELNET STATISTICS
Time period: 02/16/02 through 02/22/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 46 48
Davis 12 0 12
Irvine 5 0 5
Los Angeles 0 12 12
Riverside 1 0 1
San Diego 1 7 8
San Francisco 3 0 3
Santa Barbara 3 0 3
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 7 7
Other-Network UC n/a 25 25
_______ ______ _____
28 99 127
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 2 96
2-4 a.m. 3 7 22
4-6 a.m. 2 8 63
6-8 a.m. 1 5 21
8-10 a.m. 10 24 123
10-12 a.m. 29 47 732
12-2 p.m. 17 74 479
2-4 p.m. 30 88 375
4-6 p.m. 9 29 349
6-8 p.m. 9 58 309
8-10 p.m. 3 9 43
10-12 p.m. 13 90 116
__________ __________ __________ _________________
Total: 127 441 2,728
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 5 209 214
Davis 44 0 44
Irvine 8 0 8
Los Angeles 0 26 26
Riverside 1 0 1
San Diego 6 52 58
San Francisco 7 0 7
Santa Barbara 5 0 5
Santa Cruz 6 0 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 4 4
Los Alamos 0 0 0
Other - UC 0 19 19
Other-Network UC n/a 49 49
_______ ______ _____
82 359 441
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 27 773 800
Davis 211 0 211
Irvine 187 0 187
Los Angeles 0 180 180
Riverside 5 0 5
San Diego 4 250 254
San Francisco 148 0 148
Santa Barbara 30 0 30
Santa Cruz 211 0 211
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 90 90
Los Alamos 0 0 0
Other - UC 0 75 75
Other-Network UC n/a 537 537
_______ ______ _____
823 1,905 2,728
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.6
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
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Median session length (minutes:seconds) 3:32
Average session length (minutes:seconds) 11:17
Longest session recorded (minutes:seconds) 225:08
Average number of searches completed per session 3.5
Retrievals per search - median 1.0
Retrievals per search - average 560.6
Retrievals per search - standard deviation 5123.5
Percent of searches completed with 0 results 43.5%
Percent of searches entered that are long 1.4%
Percent of long searches completed
(includes partial results) 66.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 405 35.7%
DISPLAY (excluding automatic displays) 405 35.7%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 15 1.3%
EXPLAIN 11 1.0%
SET/RESET 54 4.8%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 36 3.2%
LOGON or LOGOFF 153 13.5%
COMMENT 0 0.0%
SAVE 23 2.0%
USE 0 0.0%
OTHER 30 2.6%
2.1 Article Text
_________________
DISPLAY TEXT commands 31
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 225 40.8% 136 60.4% 9 194.6 1355.4
TITLE WORD 63 11.4% 17 27.0% 12 2185.3 14434.5
EXACT TITLE 6 1.1% 4 66.7% 1 1.0 0.0
JOURNAL 7 1.3% 0 0.0% 29 511.1 1133.7
EXACT JOURNAL 27 4.9% 11 40.7% 556 753.6 774.2
SUBJECT 20 3.6% 7 35.0% 345 12637.0 27418.4
EXACT SUBJECT 2 0.4% 0 0.0% 628 627.5 722.0
KEYWORD 62 11.2% 11 17.7% 39 853.6 2473.8
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 10 1.8% 2 20.0% 17 66.8 142.0
ADDED 120 21.7% 110 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 7 1.3% 2 28.6% 3 185.8 352.7
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 3 0.5% 0 0.0% 8 8.3 4.5
EXACT PE 0 0.0% 0 0.0% 0 0.0 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 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 147 36.3% 117 79.6% 3 3300.7 17877.4
Single 258 63.7% 66 25.6% 23 760.4 3178.2
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 2.9%
SHORT 85.7%
LONG 4.5%
TAGS 0.0%
FIELDS 5.7%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.2%
COMMENTS 0.0%
Other 0.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 15.1%
Ten most frequent errors:
1. DISPLAY command - no FIND results 56.2%
2. NS command - no next screen 15.9%
3. First word of command is invalid 10.0%
4. FIND command with invalid index name 8.0%
5. DISPLAY command contains invalid word 2.5%
6. PS command - no previous screen 1.5%
7. Valid command at an inappropriate time 1.0%
8. DISPLAY command-record numbers too large 1.0%
9. 745 1.0%
10. SHOW command contains invalid word 0.5%
11. All others 2.5%
Ten most frequent EXPLAIN requests:
1. COMMANDS (ABI/PSY DBS) 27.3%
2. FIND (ABI DB) 18.2%
3. MAGS TEXT 9.1%
4. INDEXES (ABI DB) 9.1%
5. SUBJECT INDEX (ABI DB) 9.1%
6. B048 9.1%
7. B089 9.1%
8. LOCATE (ARTICLE DBS) 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with invalid index name 19.2%
2. FIND command with zero results 15.4%
3. Help requested from SET DB command 15.4%
4. First word of command is invalid 11.5%
5. 117 11.5%
6. FIND command retrieves >1 book 7.7%
7. DISPLAY command - middle of >1 screen 7.7%
8. 43 3.8%
9. NS command - no next screen 3.8%
10. DISPLAY command-complete in one screen 3.8%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)