MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/08/01 through 09/14/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 57 63
Davis 14 0 14
Irvine 9 0 9
Los Angeles 0 29 29
Riverside 2 0 2
San Diego 5 6 11
San Francisco 3 0 3
Santa Barbara 0 2 2
Santa Cruz 0 2 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 54 54
_______ ______ _____
39 152 191
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 2 6
2-4 a.m. 2 11 82
4-6 a.m. 0 0 0
6-8 a.m. 7 12 71
8-10 a.m. 19 61 602
10-12 a.m. 46 101 1,322
12-2 p.m. 31 130 1,590
2-4 p.m. 41 154 2,614
4-6 p.m. 25 70 917
6-8 p.m. 4 7 9
8-10 p.m. 9 37 781
10-12 p.m. 5 21 504
__________ __________ __________ _________________
Total: 191 606 8,498
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 4 273 277
Davis 24 0 24
Irvine 18 0 18
Los Angeles 0 95 95
Riverside 6 0 6
San Diego 6 25 31
San Francisco 17 0 17
Santa Barbara 0 4 4
Santa Cruz 0 10 10
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 121 121
_______ ______ _____
75 531 606
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 137 3,636 3,773
Davis 320 0 320
Irvine 132 0 132
Los Angeles 0 2,113 2,113
Riverside 156 0 156
San Diego 18 110 128
San Francisco 200 0 200
Santa Barbara 0 16 16
Santa Cruz 0 98 98
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 632 632
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 930 930
_______ ______ _____
963 7,535 8,498
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.3
Standard deviation in seconds 0.5
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) 11:08
Average session length (minutes:seconds) 15:35
Longest session recorded (minutes:seconds) 80:14
Average number of searches completed per session 3.1
Retrievals per search - median 6.0
Retrievals per search - average 789.2
Retrievals per search - standard deviation 5968.9
Percent of searches completed with 0 results 31.4%
Percent of searches entered that are long 3.1%
Percent of long searches completed
(includes partial results) 78.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 520 26.0%
DISPLAY (excluding automatic displays) 925 46.3%
BROWSE 1 0.1%
SELECT 0 0.0%
HELP 29 1.5%
EXPLAIN 28 1.4%
SET/RESET 96 4.8%
SHOW 6 0.3%
ADD ON (AND, OR, AND NOT) 86 4.3%
LOGON or LOGOFF 213 10.7%
COMMENT 0 0.0%
SAVE 44 2.2%
USE 0 0.0%
OTHER 50 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 128
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 3
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 148 26.5% 53 35.8% 11 39.4 95.7
TITLE WORD 104 18.6% 48 46.2% 8 282.0 1083.0
EXACT TITLE 9 1.6% 4 44.4% 1 1.0 0.0
JOURNAL 26 4.7% 8 30.8% 2,208 2044.2 1492.5
EXACT JOURNAL 19 3.4% 8 42.1% 10,742 24019.7 37595.6
SUBJECT 18 3.2% 12 66.7% 2,625 2973.0 3284.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 198 35.4% 30 15.2% 52 749.1 2280.5
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 17 3.0% 7 41.2% 16 32.2 34.6
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 6 1.1% 1 16.7% 14 281.2 377.8
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 10 1.8% 1 10.0% 3 7.4 7.0
EXACT PE 3 0.5% 1 33.3% 21 20.5 26.2
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 1 0.2% 1 100% 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 44 8.5% 17 38.6% 4 30.7 55.3
Single 471 91.5% 140 29.7% 28 1403.0 7992.9
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 1 100% 0 0.0% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 6.3%
SHORT 90.0%
LONG 0.7%
TAGS 0.0%
FIELDS 0.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.6%
COMMENTS 0.0%
Other 1.0%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 8.6%
Ten most frequent errors:
1. NS command - no next screen 37.2%
2. First word of command is invalid 32.4%
3. FIND command with invalid index name 6.4%
4. PS command - no previous screen 3.7%
5. Add-on search, no index name after verb 2.7%
6. DISPLAY command contains invalid word 2.1%
7. Valid command at an inappropriate time 1.6%
8. DISPLAY command - no FIND results 1.6%
9. DISPLAY command-record numbers too large 1.6%
10. Search term missing from search command 1.6%
11. All others 9.0%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 25.0%
2. MAIL 14.3%
3. FIND (ABI DB) 10.7%
4. MAGS TEXT 7.1%
5. GUIDE (ABI DB) 7.1%
6. LOCATE (ARTICLE DBS) 7.1%
7. ABI/INFORM DB 3.6%
8. BROWSE (ABI DB) 3.6%
9. COMMANDS (ABI/PSY DBS) 3.6%
10. DATE (ABI DB) 3.6%
11. All others 14.3%
Ten most frequent HELP situations:
1. First word of command is invalid 15.8%
2. FIND command with zero results 15.8%
3. Help requested from SET DB command 15.8%
4. FIND command with invalid index name 10.5%
5. FIND command retrieves >1 book 8.8%
6. DISPLAY command contains invalid word 3.5%
7. 3 HELP commands issued from same code 3.5%
8. DISPLAY command-first of >1 screen 3.5%
9. DISPLAY command - middle of >1 screen 3.5%
10. DISPLAY command - last of >1 screen 3.5%
11. All others 15.8%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. SETTINGS (ABI DB) 16.7%
3. ABI NEWS 16.7%
4. MAIL STATUS 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)