MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/19/02 through 01/25/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 61 63
Davis 6 0 6
Irvine 7 0 7
Los Angeles 1 10 11
Riverside 1 0 1
San Diego 3 2 5
San Francisco 0 0 0
Santa Barbara 4 0 4
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 6 7
Other-Network UC n/a 22 22
_______ ______ _____
25 101 126
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 0 0 0
2-4 a.m. 0 0 0
4-6 a.m. 2 2 0
6-8 a.m. 5 10 58
8-10 a.m. 14 45 310
10-12 a.m. 25 71 474
12-2 p.m. 21 99 552
2-4 p.m. 22 52 746
4-6 p.m. 10 21 201
6-8 p.m. 7 16 171
8-10 p.m. 7 12 53
10-12 p.m. 13 115 274
__________ __________ __________ _________________
Total: 126 443 2,839
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 1 310 311
Davis 8 0 8
Irvine 13 0 13
Los Angeles 0 40 40
Riverside 3 0 3
San Diego 5 7 12
San Francisco 0 0 0
Santa Barbara 2 0 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 2 18 20
Other-Network UC n/a 34 34
_______ ______ _____
34 409 443
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 1,296 1,300
Davis 39 0 39
Irvine 72 0 72
Los Angeles 0 839 839
Riverside 0 0 0
San Diego 16 41 57
San Francisco 0 0 0
Santa Barbara 161 0 161
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 9 217 226
Other-Network UC n/a 145 145
_______ ______ _____
301 2,538 2,839
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 0.8
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) 7:32
Average session length (minutes:seconds) 13:18
Longest session recorded (minutes:seconds) 279:39
Average number of searches completed per session 3.5
Retrievals per search - median 2.0
Retrievals per search - average 879.4
Retrievals per search - standard deviation 11999
Percent of searches completed with 0 results 39.9%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 75.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 383 34.4%
DISPLAY (excluding automatic displays) 354 31.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 13 1.2%
EXPLAIN 17 1.5%
SET/RESET 45 4.0%
SHOW 6 0.5%
ADD ON (AND, OR, AND NOT) 60 5.4%
LOGON or LOGOFF 166 14.9%
COMMENT 0 0.0%
SAVE 35 3.1%
USE 0 0.0%
OTHER 34 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 25
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 1
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 201 41.1% 105 52.2% 15 36.9 71.2
TITLE WORD 73 14.9% 27 37.0% 6 74.9 214.6
EXACT TITLE 6 1.2% 3 50.0% 2 1.7 0.6
JOURNAL 23 4.7% 7 30.4% 285 5166.9 10144.2
EXACT JOURNAL 7 1.4% 2 28.6% 9 43.4 73.1
SUBJECT 31 6.3% 14 45.2% 544 906.6 1388.1
EXACT SUBJECT 2 0.4% 0 0.0% 14 14.0 0.0
KEYWORD 52 10.6% 14 26.9% 185 7387.8 40134.3
PUB TYPE 1 0.2% 0 0.0% 15 15.0 0.0
DATE 3 0.6% 1 33.3% 14 14.0 0.0
ADDED 84 17.2% 84 100% 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 0 0.0% 0 0.0% 0 0.0 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 4 0.8% 0 0.0% 5 33.8 60.9
EXACT PE 1 0.2% 0 0.0% 1 1.0 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 1 0.2% 0 0.0% 523 523.0 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 107 28.1% 94 87.8% 13 33.0 80.6
Single 274 71.9% 68 24.8% 23 1873.3 17526.0
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 2.4%
SHORT 87.0%
LONG 1.9%
TAGS 0.0%
FIELDS 2.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.4%
COMMENTS 0.0%
Other 4.1%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 11.3%
Ten most frequent errors:
1. DISPLAY command - no FIND results 59.9%
2. First word of command is invalid 14.1%
3. NS command - no next screen 13.4%
4. FIND command with invalid index name 3.5%
5. DISPLAY command contains invalid word 1.4%
6. PS command - no previous screen 1.4%
7. Add-on search, no index name after verb 1.4%
8. Valid command at an inappropriate time 0.7%
9. Search term missing from search command 0.7%
10. Single letter keyword search 0.7%
11. All others 2.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 11.8%
2. INDEXES (ABI DB) 11.8%
3. COMMANDS (ABI/PSY DBS) 11.8%
4. DISPLAY (ABI DB) 11.8%
5. MAGS TEXT 5.9%
6. PUBLICATION TYPES (ABI DB) 5.9%
7. B089 5.9%
8. B145 5.9%
9. MAIL 5.9%
10. 1215 5.9%
11. All others 17.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 16.7%
2. FIND command with invalid index name 13.3%
3. First word of command is invalid 10.0%
4. DISPLAY command - middle of >1 screen 10.0%
5. DISPLAY command - last of >1 screen 10.0%
6. PS command - no previous screen 6.7%
7. FIND command retrieves 1 book 6.7%
8. MAIL command entered w/o email address 6.7%
9. DISPLAY command contains invalid word 3.3%
10. 232 3.3%
11. All others 13.3%
Ten most frequent SHOW requests:
1. HISTORY 83.3%
2. MAIL SETTINGS 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)