MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/02/01 through 06/08/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 65 66
Davis 20 0 20
Irvine 31 0 31
Los Angeles 0 35 35
Riverside 14 1 15
San Diego 1 5 6
San Francisco 9 0 9
Santa Barbara 3 5 8
Santa Cruz 1 1 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 3 2 5
Other-Network UC n/a 47 47
_______ ______ _____
83 161 244
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 15 300
2-4 a.m. 2 20 172
4-6 a.m. 0 0 0
6-8 a.m. 5 13 113
8-10 a.m. 29 66 987
10-12 a.m. 53 110 884
12-2 p.m. 39 158 2,892
2-4 p.m. 45 142 1,292
4-6 p.m. 33 73 802
6-8 p.m. 16 53 673
8-10 p.m. 5 19 132
10-12 p.m. 11 46 924
__________ __________ __________ _________________
Total: 244 715 9,171
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 2 208 210
Davis 54 0 54
Irvine 128 0 128
Los Angeles 0 88 88
Riverside 18 2 20
San Diego 3 19 22
San Francisco 29 0 29
Santa Barbara 7 9 16
Santa Cruz 4 2 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 12 4 16
Other-Network UC n/a 126 126
_______ ______ _____
257 458 715
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 3,169 3,177
Davis 700 0 700
Irvine 2,233 0 2,233
Los Angeles 0 1,342 1,342
Riverside 115 0 115
San Diego 40 35 75
San Francisco 261 0 261
Santa Barbara 56 123 179
Santa Cruz 1 9 10
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 15 7 22
Other-Network UC n/a 1,057 1,057
_______ ______ _____
3,429 5,742 9,171
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.0
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) 11:41
Average session length (minutes:seconds) 19:14
Longest session recorded (minutes:seconds) 408:13
Average number of searches completed per session 2.9
Retrievals per search - median 3.5
Retrievals per search - average 856.0
Retrievals per search - standard deviation 8082.6
Percent of searches completed with 0 results 31.2%
Percent of searches entered that are long 3.4%
Percent of long searches completed
(includes partial results) 62.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 635 24.9%
DISPLAY (excluding automatic displays) 1,193 46.8%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 23 0.9%
EXPLAIN 23 0.9%
SET/RESET 115 4.5%
SHOW 5 0.2%
ADD ON (AND, OR, AND NOT) 80 3.1%
LOGON or LOGOFF 294 11.5%
COMMENT 0 0.0%
SAVE 102 4.0%
USE 0 0.0%
OTHER 79 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 73
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 20
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 192 27.5% 57 29.7% 18 86.2 252.9
TITLE WORD 150 21.5% 64 42.7% 3 132.2 732.6
EXACT TITLE 11 1.6% 4 36.4% 4 3.7 3.0
JOURNAL 34 4.9% 17 50.0% 2,932 4862.9 6758.6
EXACT JOURNAL 21 3.0% 3 14.3% 11 142.1 330.2
SUBJECT 38 5.4% 16 42.1% 248 9529.5 27190.4
EXACT SUBJECT 8 1.1% 7 87.5% 74 74.0 0.0
KEYWORD 178 25.5% 44 24.7% 28 2014.1 14314.0
PUB TYPE 4 0.6% 0 0.0% 7 64.3 116.5
DATE 22 3.1% 1 4.5% 7 31.4 66.8
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 1 0.1% 1 100% 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 8 1.1% 0 0.0% 59 151.0 293.5
EX COMPANY NAME 4 0.6% 2 50.0% 48 48.0 65.1
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 16 2.3% 1 6.3% 5 8.7 14.1
EXACT PE 3 0.4% 0 0.0% 2 2.7 2.1
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 9 1.3% 0 0.0% 1 1.0 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 71 11.3% 22 31.0% 5 26.8 56.3
Single 557 88.7% 173 31.1% 21 1530.2 10912.8
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 5.9%
SHORT 88.2%
LONG 1.0%
TAGS 0.0%
FIELDS 0.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 1.8%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 7.6%
Ten most frequent errors:
1. First word of command is invalid 34.0%
2. NS command - no next screen 33.0%
3. FIND command with invalid index name 7.7%
4. DISPLAY command - no FIND results 3.3%
5. DISPLAY command contains invalid word 2.9%
6. PS command - no previous screen 2.4%
7. Search term missing from search command 2.4%
8. Add-on search, no index name after verb 1.4%
9. BROWSE command with invalid index name 1.4%
10. Valid command at an inappropriate time 1.0%
11. All others 10.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 26.1%
2. LOCATE (ARTICLE DBS) 21.7%
3. INDEXES (ABI DB) 13.0%
4. FIND (ABI DB) 13.0%
5. COMMANDS (ABI/PSY DBS) 8.7%
6. B030 4.3%
7. DISPLAY (ABI DB) 4.3%
8. DATABASES 4.3%
9. 3800 4.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.1%
2. First word of command is invalid 17.4%
3. FIND command with invalid index name 8.7%
4. FIND command with zero results 8.7%
5. DISPLAY command-complete in one screen 8.7%
6. NS command - no next screen 4.3%
7. F/BR command with invalid search term 4.3%
8. Add-on without index name after verb 4.3%
9. FIND command retrieves >1 book 4.3%
10. DISPLAY command - last of >1 screen 4.3%
11. All others 8.7%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)