MELVYL ABI DATABASE TELNET STATISTICS
Time period: 11/03/01 through 11/09/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 106 107
Davis 22 0 22
Irvine 6 0 6
Los Angeles 0 17 17
Riverside 4 1 5
San Diego 0 5 5
San Francisco 9 0 9
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 48 48
_______ ______ _____
42 178 220
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 10 119
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 2 5 5
8-10 a.m. 26 51 419
10-12 a.m. 32 98 1,199
12-2 p.m. 39 76 703
2-4 p.m. 52 108 1,487
4-6 p.m. 39 64 883
6-8 p.m. 12 36 386
8-10 p.m. 10 18 444
10-12 p.m. 2 4 81
__________ __________ __________ _________________
Total: 220 470 5,726
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 1 229 230
Davis 58 0 58
Irvine 8 0 8
Los Angeles 0 32 32
Riverside 9 5 14
San Diego 0 6 6
San Francisco 24 0 24
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 12 12
Other-Network UC n/a 86 86
_______ ______ _____
100 370 470
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 3,102 3,102
Davis 286 0 286
Irvine 43 0 43
Los Angeles 0 362 362
Riverside 36 164 200
San Diego 0 82 82
San Francisco 441 0 441
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 125 125
Other-Network UC n/a 1,085 1,085
_______ ______ _____
806 4,920 5,726
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 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
_________________________________________
Median session length (minutes:seconds) 2:59
Average session length (minutes:seconds) 9:25
Longest session recorded (minutes:seconds) 83:42
Average number of searches completed per session 2.1
Retrievals per search - median 5.0
Retrievals per search - average 910.7
Retrievals per search - standard deviation 6981.1
Percent of searches completed with 0 results 25.8%
Percent of searches entered that are long 1.7%
Percent of long searches completed
(includes partial results) 87.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 407 25.7%
DISPLAY (excluding automatic displays) 623 39.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 10 0.6%
EXPLAIN 10 0.6%
SET/RESET 85 5.4%
SHOW 7 0.4%
ADD ON (AND, OR, AND NOT) 63 4.0%
LOGON or LOGOFF 295 18.6%
COMMENT 0 0.0%
SAVE 30 1.9%
USE 0 0.0%
OTHER 52 3.3%
2.1 Article Text
_________________
DISPLAY TEXT commands 38
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 8
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 160 36.0% 33 20.6% 3 35.1 145.0
TITLE WORD 85 19.1% 39 45.9% 7 51.8 111.1
EXACT TITLE 6 1.4% 3 50.0% 1 11.3 17.9
JOURNAL 19 4.3% 7 36.8% 891 3825.4 5844.6
EXACT JOURNAL 10 2.3% 4 40.0% 588 1213.5 1417.6
SUBJECT 22 5.0% 12 54.5% 1,352 3428.7 3821.9
EXACT SUBJECT 2 0.5% 0 0.0% 5,252 5252.0 7420.4
KEYWORD 86 19.4% 8 9.3% 145 3995.0 16515.3
PUB TYPE 7 1.6% 0 0.0% 207 450.6 437.6
DATE 6 1.4% 4 66.7% 360 360.0 256.0
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 5 1.1% 2 40.0% 541 1397.7 1857.6
EX COMPANY NAME 1 0.2% 1 100% 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 26 5.9% 3 11.5% 24 75.2 137.4
EXACT PE 8 1.8% 0 0.0% 3 8.0 13.9
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% 0 0.0% 769 769.0 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 35 8.6% 12 34.3% 3 169.8 318.5
Single 372 91.4% 90 24.2% 18 1486.8 8961.7
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 4.4%
SHORT 75.4%
LONG 8.1%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 7.7%
COMMENTS 0.0%
Other 3.0%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 7.5%
Ten most frequent errors:
1. First word of command is invalid 25.0%
2. NS command - no next screen 22.7%
3. FIND command with invalid index name 15.6%
4. DISPLAY command - no FIND results 10.9%
5. DISPLAY command contains invalid word 9.4%
6. PS command - no previous screen 2.3%
7. Search term missing from search command 2.3%
8. DISPLAY command-record numbers too large 1.6%
9. DATE search with unrecognized word 1.6%
10. Invalid Publication Type entered 1.6%
11. All others 7.0%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 40.0%
2. INDEXES (ABI DB) 20.0%
3. FIND (ABI DB) 10.0%
4. Unrecognized term 10.0%
5. 1217 10.0%
6. DATABASES 10.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 35.0%
2. First word of command is invalid 20.0%
3. FIND command with invalid index name 10.0%
4. FIND command with zero results 10.0%
5. DISPLAY command - middle of >1 screen 5.0%
6. DISPLAY command - last of >1 screen 5.0%
7. 725 5.0%
8. 838 5.0%
9. 1229 5.0%
11. All others 0.0%
Ten most frequent SHOW requests:
1. ABI NEWS 33.3%
2. PUBLICATION TYPES (ABI DB) 16.7%
3. SYSTEM NEWS 16.7%
4. SEARCH 16.7%
5. HISTORY 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)