MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/12/02 through 01/18/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 43 44
Davis 17 1 18
Irvine 10 0 10
Los Angeles 0 10 10
Riverside 4 0 4
San Diego 2 9 11
San Francisco 0 0 0
Santa Barbara 1 2 3
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 36 36
_______ ______ _____
35 101 136
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 19 268
2-4 a.m. 2 13 46
4-6 a.m. 1 7 76
6-8 a.m. 4 6 55
8-10 a.m. 23 47 358
10-12 a.m. 26 58 363
12-2 p.m. 24 52 823
2-4 p.m. 25 63 594
4-6 p.m. 12 38 466
6-8 p.m. 2 14 184
8-10 p.m. 3 5 66
10-12 p.m. 12 101 491
__________ __________ __________ _________________
Total: 136 423 3,790
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 17 151 168
Davis 35 2 37
Irvine 39 0 39
Los Angeles 0 26 26
Riverside 10 0 10
San Diego 3 40 43
San Francisco 0 0 0
Santa Barbara 4 5 9
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 91 91
_______ ______ _____
108 315 423
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 459 759 1,218
Davis 139 116 255
Irvine 558 0 558
Los Angeles 0 326 326
Riverside 3 0 3
San Diego 0 535 535
San Francisco 0 0 0
Santa Barbara 48 34 82
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 813 813
_______ ______ _____
1,207 2,583 3,790
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.2
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) 12:02
Average session length (minutes:seconds) 21:10
Longest session recorded (minutes:seconds) 547:57
Average number of searches completed per session 3.1
Retrievals per search - median 2.0
Retrievals per search - average 1194.4
Retrievals per search - standard deviation 18669
Percent of searches completed with 0 results 39.9%
Percent of searches entered that are long 4.3%
Percent of long searches completed
(includes partial results) 61.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 388 32.3%
DISPLAY (excluding automatic displays) 456 37.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 11 0.9%
EXPLAIN 9 0.7%
SET/RESET 69 5.7%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 35 2.9%
LOGON or LOGOFF 152 12.6%
COMMENT 0 0.0%
SAVE 51 4.2%
USE 0 0.0%
OTHER 30 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 64
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 23
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 215 43.3% 108 50.2% 13 52.3 126.6
TITLE WORD 71 14.3% 36 50.7% 5 1350.3 5299.0
EXACT TITLE 8 1.6% 7 87.5% 82 82.0 0.0
JOURNAL 20 4.0% 5 25.0% 86 1956.8 5792.2
EXACT JOURNAL 6 1.2% 2 33.3% 862 1113.0 1076.8
SUBJECT 12 2.4% 5 41.7% 1,462 60778.9 140677
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 78 15.7% 8 10.3% 23 292.3 985.0
PUB TYPE 1 0.2% 0 0.0% 34 34.0 0.0
DATE 5 1.0% 1 20.0% 29 38.8 46.0
ADDED 72 14.5% 72 100% 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 2 0.4% 0 0.0% 2,022 2022.0 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 5 1.0% 0 0.0% 7 11.6 13.2
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 2 0.4% 0 0.0% 1,655 1655.0 77.8
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 114 29.8% 87 76.3% 9 1736.6 6001.5
Single 269 70.2% 70 26.0% 18 2243.6 26893.4
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 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 6.8%
SHORT 85.3%
LONG 2.4%
TAGS 0.0%
FIELDS 2.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.3%
COMMENTS 0.0%
Other 2.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 12.1%
Ten most frequent errors:
1. DISPLAY command - no FIND results 44.8%
2. NS command - no next screen 20.6%
3. First word of command is invalid 17.6%
4. FIND command with invalid index name 4.8%
5. DISPLAY command contains invalid word 2.4%
6. Search term missing from search command 1.8%
7. PS command - no previous screen 1.2%
8. Index invalid in current database 1.2%
9. Valid command at an inappropriate time 0.6%
10. Range of record numbers invalid 0.6%
11. All others 4.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 33.3%
2. ABI/INFORM DB 11.1%
3. INDEXES (ABI DB) 11.1%
4. FIND (ABI DB) 11.1%
5. MAIL 11.1%
6. 1212 11.1%
7. DATABASES 11.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 50.0%
2. DISPLAY command - middle of >1 screen 15.0%
3. First word of command is invalid 10.0%
4. FIND command with invalid index name 5.0%
5. DISPLAY command-complete in one screen 5.0%
6. 725 5.0%
7. 754 5.0%
8. MAIL command entered w/o email address 5.0%
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)