MELVYL ABI DATABASE TELNET STATISTICS
Time period: 12/08/01 through 12/14/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 35 38
Davis 11 0 11
Irvine 13 0 13
Los Angeles 0 16 16
Riverside 0 0 0
San Diego 0 2 2
San Francisco 0 0 0
Santa Barbara 1 0 1
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 55 55
_______ ______ _____
28 111 139
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 3 8
2-4 a.m. 0 0 0
4-6 a.m. 0 0 0
6-8 a.m. 5 12 148
8-10 a.m. 21 59 865
10-12 a.m. 26 94 421
12-2 p.m. 14 24 189
2-4 p.m. 30 98 1,422
4-6 p.m. 13 30 629
6-8 p.m. 8 31 114
8-10 p.m. 6 16 120
10-12 p.m. 14 80 81
__________ __________ __________ _________________
Total: 139 447 3,997
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 1 154 155
Davis 27 0 27
Irvine 58 0 58
Los Angeles 0 45 45
Riverside 0 0 0
San Diego 0 3 3
San Francisco 5 0 5
Santa Barbara 2 0 2
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 4 4
Los Alamos 0 0 0
Other - UC 0 17 17
Other-Network UC n/a 131 131
_______ ______ _____
93 354 447
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 10 1,291 1,301
Davis 211 0 211
Irvine 284 0 284
Los Angeles 0 364 364
Riverside 0 0 0
San Diego 0 2 2
San Francisco 1 0 1
Santa Barbara 19 0 19
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 13 13
Los Alamos 0 0 0
Other - UC 0 375 375
Other-Network UC n/a 1,427 1,427
_______ ______ _____
525 3,472 3,997
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 0.2
2.0 ABI Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 8:24
Average session length (minutes:seconds) 11:23
Longest session recorded (minutes:seconds) 88:22
Average number of searches completed per session 3.2
Retrievals per search - median 2.0
Retrievals per search - average 269.5
Retrievals per search - standard deviation 1663.4
Percent of searches completed with 0 results 38.9%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 77.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 412 31.9%
DISPLAY (excluding automatic displays) 562 43.6%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 8 0.6%
EXPLAIN 11 0.9%
SET/RESET 77 6.0%
SHOW 3 0.2%
ADD ON (AND, OR, AND NOT) 35 2.7%
LOGON or LOGOFF 142 11.0%
COMMENT 0 0.0%
SAVE 23 1.8%
USE 0 0.0%
OTHER 17 1.3%
2.1 Article Text
_________________
DISPLAY TEXT commands 62
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 1
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 151 29.8% 95 62.9% 12 152.3 575.3
TITLE WORD 55 10.8% 20 36.4% 4 93.0 185.3
EXACT TITLE 4 0.8% 2 50.0% 25 24.5 33.2
JOURNAL 13 2.6% 4 30.8% 1,364 1659.0 1569.3
EXACT JOURNAL 10 2.0% 3 30.0% 15 577.0 962.0
SUBJECT 10 2.0% 5 50.0% 58 499.8 931.3
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 138 27.2% 28 20.3% 53 733.2 3184.8
PUB TYPE 1 0.2% 0 0.0% 1 1.0 0.0
DATE 12 2.4% 2 16.7% 15 92.9 195.1
ADDED 72 14.2% 72 100% 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 4 0.8% 0 0.0% 58 76.0 79.6
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 16 3.2% 2 12.5% 5 33.2 67.8
EXACT PE 19 3.7% 0 0.0% 8 19.6 37.9
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 2 0.4% 0 0.0% 2,110 2110.0 2981.2
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 94 22.9% 76 80.8% 5 57.0 148.4
Single 316 77.1% 81 25.6% 17 502.9 2265.3
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 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 3.7%
SHORT 87.5%
LONG 0.3%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 6.6%
COMMENTS 0.0%
Other 0.6%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 11.2%
Ten most frequent errors:
1. DISPLAY command - no FIND results 47.2%
2. NS command - no next screen 17.2%
3. First word of command is invalid 14.1%
4. FIND command with invalid index name 4.9%
5. DISPLAY command contains invalid word 3.7%
6. PS command - no previous screen 3.1%
7. DISPLAY command-record numbers too large 2.5%
8. Valid command at an inappropriate time 0.6%
9. SET command with invalid setting 0.6%
10. SET DB command entered w/o modifier 0.6%
11. All others 5.5%
Ten most frequent EXPLAIN requests:
1. MAGS TEXT 18.2%
2. LOCATE (ARTICLE DBS) 18.2%
3. GUIDE (ABI DB) 9.1%
4. INDEXES (ABI DB) 9.1%
5. FIND (ABI DB) 9.1%
6. DATE (ABI DB) 9.1%
7. Unrecognized term 9.1%
8. 1219 9.1%
9. DATABASES 9.1%
11. All others 0.0%
Ten most frequent HELP situations:
1. DISPLAY command-first of >1 screen 21.1%
2. First word of command is invalid 15.8%
3. Help requested from SET DB command 15.8%
4. FIND command with invalid index name 10.5%
5. SET DB command entered w/o modifier 5.3%
6. NS command - no next screen 5.3%
7. PS command - no previous screen 5.3%
8. FIND command with zero results 5.3%
9. 243 5.3%
10. DISPLAY command-complete in one screen 5.3%
11. All others 5.3%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)