MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/22/01 through 09/28/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 57 59
Davis 18 0 18
Irvine 17 0 17
Los Angeles 0 32 32
Riverside 2 0 2
San Diego 1 8 9
San Francisco 5 0 5
Santa Barbara 1 5 6
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 1 2
Other-Network UC n/a 43 43
_______ ______ _____
48 146 194
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 57 566
2-4 a.m. 2 3 52
4-6 a.m. 2 1 10
6-8 a.m. 6 9 67
8-10 a.m. 30 84 376
10-12 a.m. 43 89 361
12-2 p.m. 31 97 1,062
2-4 p.m. 31 68 808
4-6 p.m. 25 73 614
6-8 p.m. 11 32 380
8-10 p.m. 5 11 176
10-12 p.m. 3 13 26
__________ __________ __________ _________________
Total: 194 537 4,498
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 12 127 139
Davis 61 0 61
Irvine 83 0 83
Los Angeles 0 79 79
Riverside 2 0 2
San Diego 5 24 29
San Francisco 10 0 10
Santa Barbara 1 7 8
Santa Cruz 6 0 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 2 3
Other-Network UC n/a 117 117
_______ ______ _____
181 356 537
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 94 1,610 1,704
Davis 448 0 448
Irvine 873 0 873
Los Angeles 0 452 452
Riverside 9 0 9
San Diego 6 148 154
San Francisco 45 0 45
Santa Barbara 0 142 142
Santa Cruz 62 0 62
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 3 0 3
Other-Network UC n/a 606 606
_______ ______ _____
1,540 2,958 4,498
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 1.1
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) 5:57
Average session length (minutes:seconds) 12:50
Longest session recorded (minutes:seconds) 334:12
Average number of searches completed per session 2.7
Retrievals per search - median 4.0
Retrievals per search - average 348.4
Retrievals per search - standard deviation 1736.1
Percent of searches completed with 0 results 30.3%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 61.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 481 28.3%
DISPLAY (excluding automatic displays) 692 40.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 30 1.8%
EXPLAIN 19 1.1%
SET/RESET 83 4.9%
SHOW 4 0.2%
ADD ON (AND, OR, AND NOT) 56 3.3%
LOGON or LOGOFF 234 13.8%
COMMENT 0 0.0%
SAVE 46 2.7%
USE 0 0.0%
OTHER 53 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 56
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 5
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 118 23.4% 19 16.1% 11 44.8 192.3
TITLE WORD 125 24.8% 54 43.2% 6 141.7 564.5
EXACT TITLE 7 1.4% 5 71.4% 11 11.0 0.0
JOURNAL 18 3.6% 5 27.8% 25 722.6 1086.1
EXACT JOURNAL 7 1.4% 3 42.9% 451 1206.5 1659.6
SUBJECT 45 8.9% 27 60.0% 82 1613.2 2590.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 156 30.9% 38 24.4% 24 993.3 3348.4
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 5 1.0% 0 0.0% 23 105.6 207.3
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 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 12 2.4% 1 8.3% 5 11.6 16.8
EXACT PE 12 2.4% 1 8.3% 10 274.9 592.4
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 27 5.6% 9 33.3% 11 39.1 109.7
Single 451 94.3% 135 29.9% 15 561.0 2222.8
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 1.7%
SHORT 90.6%
LONG 1.0%
TAGS 0.0%
FIELDS 1.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.9%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 10.2%
Ten most frequent errors:
1. NS command - no next screen 34.4%
2. First word of command is invalid 31.2%
3. FIND command with invalid index name 9.9%
4. DISPLAY command contains invalid word 3.6%
5. DISPLAY command-record numbers too large 3.1%
6. Search term missing from search command 2.6%
7. DISPLAY command - no FIND results 2.1%
8. Add-on search, no index name after verb 2.1%
9. Index invalid in current database 2.1%
10. PS command - no previous screen 1.6%
11. All others 7.3%
Ten most frequent EXPLAIN requests:
1. FIND (ABI DB) 31.6%
2. GUIDE (ABI DB) 26.3%
3. ABI/INFORM DB 5.3%
4. INDEXES (ABI DB) 5.3%
5. COMMANDS (ABI/PSY DBS) 5.3%
6. B031 5.3%
7. B042 5.3%
8. B089 5.3%
9. LOCATE (ARTICLE DBS) 5.3%
10. Unrecognized term 5.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 40.8%
2. First word of command is invalid 10.2%
3. FIND command with invalid index name 10.2%
4. F/BR command with invalid search term 10.2%
5. FIND command with zero results 6.1%
6. FIND command retrieves >1 book 4.1%
7. DISPLAY command - middle of >1 screen 4.1%
8. Multi-index search with zero results 4.1%
9. NS command - no next screen 2.0%
10. DISPLAY command-complete in one screen 2.0%
11. All others 6.1%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. ABI NEWS 25.0%
3. DATABASES 25.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)