MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/22/02 through 06/28/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 31 32
Davis 5 0 5
Irvine 6 0 6
Los Angeles 0 7 7
Riverside 0 0 0
San Diego 0 5 5
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 5 5
Other-Network UC n/a 27 27
_______ ______ _____
12 76 88
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 6 73
2-4 a.m. 6 11 433
4-6 a.m. 2 5 20
6-8 a.m. 1 15 67
8-10 a.m. 14 24 93
10-12 a.m. 5 35 284
12-2 p.m. 14 44 702
2-4 p.m. 18 51 383
4-6 p.m. 13 39 1,095
6-8 p.m. 2 5 15
8-10 p.m. 3 11 115
10-12 p.m. 7 61 51
__________ __________ __________ _________________
Total: 88 307 3,331
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 8 138 146
Davis 7 0 7
Irvine 11 0 11
Los Angeles 0 40 40
Riverside 0 0 0
San Diego 0 30 30
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 9 9
Other-Network UC n/a 63 63
_______ ______ _____
26 281 307
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 542 550
Davis 42 0 42
Irvine 14 0 14
Los Angeles 0 845 845
Riverside 0 0 0
San Diego 0 79 79
San Francisco 0 0 0
Santa Barbara 0 0 0
Santa Cruz 0 3 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 419 419
Other-Network UC n/a 1,379 1,379
_______ ______ _____
64 3,267 3,331
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 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
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Median session length (minutes:seconds) 11:58
Average session length (minutes:seconds) 19:59
Longest session recorded (minutes:seconds) 408:19
Average number of searches completed per session 3.5
Retrievals per search - median 2.0
Retrievals per search - average 253.2
Retrievals per search - standard deviation 1600.1
Percent of searches completed with 0 results 39.5%
Percent of searches entered that are long 3.9%
Percent of long searches completed
(includes partial results) 83.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 266 30.5%
DISPLAY (excluding automatic displays) 360 41.3%
BROWSE 2 0.2%
SELECT 0 0.0%
HELP 10 1.1%
EXPLAIN 5 0.6%
SET/RESET 50 5.7%
SHOW 2 0.2%
ADD ON (AND, OR, AND NOT) 41 4.7%
LOGON or LOGOFF 109 12.5%
COMMENT 0 0.0%
SAVE 8 0.9%
USE 0 0.0%
OTHER 20 2.3%
2.1 Article Text
_________________
DISPLAY TEXT commands 4
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 0
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 134 39.6% 70 52.2% 9 114.0 531.3
TITLE WORD 47 13.9% 22 46.8% 6 108.7 217.4
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 2 0.6% 0 0.0% 97 97.0 79.2
EXACT JOURNAL 17 5.0% 3 17.6% 8 25.4 47.3
SUBJECT 25 7.4% 10 40.0% 17 126.7 238.9
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 53 15.7% 2 3.8% 72 1219.6 3731.7
PUB TYPE 2 0.6% 0 0.0% 3 3.0 0.0
DATE 2 0.6% 0 0.0% 30 30.0 32.5
ADDED 48 14.2% 48 100% 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 0.6% 1 50.0% 1,202 1202.0 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 1.5% 1 20.0% 14 26.5 34.7
EXACT PE 1 0.3% 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 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 75 28.5% 50 66.7% 8 28.3 46.3
Single 188 71.5% 57 30.3% 24 569.6 2405.3
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 2 100% 1 50.0% 2 2.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 0.9%
SHORT 87.5%
LONG 1.9%
TAGS 0.0%
FIELDS 5.4%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 1.6%
COMMENTS 0.0%
Other 2.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 14.8%
Ten most frequent errors:
1. DISPLAY command - no FIND results 34.4%
2. NS command - no next screen 28.5%
3. First word of command is invalid 20.5%
4. FIND command with invalid index name 6.0%
5. Valid command at an inappropriate time 4.0%
6. DISPLAY command-record numbers too large 2.0%
7. DISPLAY command contains invalid word 2.0%
8. Search term missing from search command 0.7%
9. 178 0.7%
10. 754 0.7%
11. All others 0.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.0%
2. ABI/INFORM DB 20.0%
3. INDEXES (ABI DB) 20.0%
4. COMMANDS (ABI/PSY DBS) 20.0%
5. ADDON SEARCH 20.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 40.0%
2. FIND command retrieves >1 book 20.0%
3. FIND command with invalid index name 13.3%
4. First word of command is invalid 6.7%
5. NS command - no next screen 6.7%
6. DISPLAY command - last of >1 screen 6.7%
7. 754 6.7%
11. All others 0.0%
Ten most frequent SHOW requests:
1. SEARCH 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)