MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/23/01 through 06/29/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 48 51
Davis 14 0 14
Irvine 6 0 6
Los Angeles 3 38 41
Riverside 3 0 3
San Diego 0 1 1
San Francisco 4 0 4
Santa Barbara 1 1 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 36 36
_______ ______ _____
34 128 162
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 5 9
2-4 a.m. 0 0 0
4-6 a.m. 3 9 70
6-8 a.m. 9 31 205
8-10 a.m. 27 87 919
10-12 a.m. 34 101 1,892
12-2 p.m. 23 66 829
2-4 p.m. 30 101 1,299
4-6 p.m. 14 42 162
6-8 p.m. 6 16 62
8-10 p.m. 11 24 181
10-12 p.m. 3 5 42
__________ __________ __________ _________________
Total: 162 487 5,670
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 6 131 137
Davis 55 0 55
Irvine 39 0 39
Los Angeles 12 89 101
Riverside 7 0 7
San Diego 0 3 3
San Francisco 7 0 7
Santa Barbara 1 1 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 12 12
Los Alamos 0 0 0
Other - UC 0 4 4
Other-Network UC n/a 120 120
_______ ______ _____
127 360 487
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 34 2,089 2,123
Davis 367 0 367
Irvine 297 0 297
Los Angeles 73 1,019 1,092
Riverside 16 0 16
San Diego 0 41 41
San Francisco 76 0 76
Santa Barbara 1 2 3
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 21 21
Los Alamos 0 0 0
Other - UC 0 4 4
Other-Network UC n/a 1,630 1,630
_______ ______ _____
864 4,806 5,670
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 2.1
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) 7:21
Average session length (minutes:seconds) 10:59
Longest session recorded (minutes:seconds) 97:15
Average number of searches completed per session 3.0
Retrievals per search - median 6.0
Retrievals per search - average 1078.2
Retrievals per search - standard deviation 6630.1
Percent of searches completed with 0 results 24.9%
Percent of searches entered that are long 4.7%
Percent of long searches completed
(includes partial results) 78.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 406 25.9%
DISPLAY (excluding automatic displays) 704 44.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 6 0.4%
EXPLAIN 15 1.0%
SET/RESET 64 4.1%
SHOW 2 0.1%
ADD ON (AND, OR, AND NOT) 81 5.2%
LOGON or LOGOFF 196 12.5%
COMMENT 0 0.0%
SAVE 45 2.9%
USE 0 0.0%
OTHER 49 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 25
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 2
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 150 33.0% 31 20.7% 9 80.4 305.6
TITLE WORD 66 14.5% 30 45.5% 3 646.9 2620.1
EXACT TITLE 12 2.6% 5 41.7% 2 49.0 118.8
JOURNAL 33 7.3% 6 18.2% 93 2822.9 7911.0
EXACT JOURNAL 13 2.9% 3 23.1% 797 1090.9 877.6
SUBJECT 29 6.4% 13 44.8% 329 5586.3 15408.2
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 100 22.0% 7 7.0% 131 3100.6 12543.1
PUB TYPE 4 0.9% 1 25.0% 339 259.0 138.6
DATE 6 1.3% 1 16.7% 222 4494.0 5988.6
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 12 2.6% 4 33.3% 93 267.4 360.2
EX COMPANY NAME 0 0.0% 0 0.0% 0 0.0 0.0
DUNS 4 0.9% 3 75.0% 1 1.0 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 18 4.0% 3 16.7% 8 364.5 859.3
EXACT PE 7 1.5% 1 14.3% 2 4.8 6.6
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 49 12.2% 10 20.4% 16 624.4 2458.7
Single 354 87.8% 87 24.6% 25 1797.8 8770.9
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 12.3%
SHORT 80.8%
LONG 0.6%
TAGS 0.0%
FIELDS 0.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 4.4%
COMMENTS 0.0%
Other 1.1%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 4.8%
Ten most frequent errors:
1. First word of command is invalid 34.2%
2. NS command - no next screen 30.4%
3. DISPLAY command contains invalid word 7.6%
4. Add-on search, no index name after verb 6.3%
5. FIND command with invalid index name 3.8%
6. Max. # of ports to a Z39 db are in use 3.8%
7. Command contains escape or arrow key 2.5%
8. DISPLAY command - no FIND results 1.3%
9. DISPLAY command-record numbers too large 1.3%
10. PS command - no previous screen 1.3%
11. All others 7.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 26.7%
2. ABI/INFORM DB 26.7%
3. FIND (ABI DB) 20.0%
4. INDEXES (ABI DB) 6.7%
5. DATE (ABI DB) 6.7%
6. MAIL 6.7%
7. 1219 6.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 47.6%
2. FIND command with invalid index name 14.3%
3. DISPLAY command-complete in one screen 9.5%
4. First word of command is invalid 4.8%
5. 117 4.8%
6. DISPLAY command-first of >1 screen 4.8%
7. DISPLAY command - middle of >1 screen 4.8%
8. Multi-index search with zero results 4.8%
9. MAIL command entered w/o email address 4.8%
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)