MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/01/02 through 01/31/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 219 225
Davis 41 1 42
Irvine 24 0 24
Los Angeles 2 52 54
Riverside 9 0 9
San Diego 12 18 30
San Francisco 6 0 6
Santa Barbara 6 3 9
Santa Cruz 1 1 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 2 7 9
Other-Network UC n/a 111 111
_______ ______ _____
109 413 522
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 28 386
2-4 a.m. 3 15 54
4-6 a.m. 6 18 200
6-8 a.m. 19 58 453
8-10 a.m. 66 162 1,118
10-12 a.m. 95 235 2,066
12-2 p.m. 80 246 2,750
2-4 p.m. 96 240 2,603
4-6 p.m. 51 150 1,596
6-8 p.m. 24 66 1,270
8-10 p.m. 23 62 723
10-12 p.m. 53 443 915
__________ __________ __________ _________________
Total: 522 1,723 14,134
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 24 941 965
Davis 133 2 135
Irvine 74 0 74
Los Angeles 6 148 154
Riverside 20 0 20
San Diego 14 70 84
San Francisco 30 0 30
Santa Barbara 8 6 14
Santa Cruz 1 2 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 4 18 22
Other-Network UC n/a 221 221
_______ ______ _____
314 1,409 1,723
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 485 5,959 6,444
Davis 723 116 839
Irvine 981 0 981
Los Angeles 3 2,062 2,065
Riverside 104 0 104
San Diego 99 758 857
San Francisco 268 0 268
Santa Barbara 215 37 252
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 62 217 279
Other-Network UC n/a 2,043 2,043
_______ ______ _____
2,941 11,193 14,134
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.9
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) 9:55
Average session length (minutes:seconds) 19:03
Longest session recorded (minutes:seconds) 614:51
Average number of searches completed per session 3.3
Retrievals per search - median 2.0
Retrievals per search - average 702.9
Retrievals per search - standard deviation 11161
Percent of searches completed with 0 results 41.6%
Percent of searches entered that are long 2.2%
Percent of long searches completed
(includes partial results) 73.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1,579 32.9%
DISPLAY (excluding automatic displays) 1,804 37.6%
BROWSE 4 0.1%
SELECT 2 0.0%
HELP 46 1.0%
EXPLAIN 56 1.2%
SET/RESET 232 4.8%
SHOW 19 0.4%
ADD ON (AND, OR, AND NOT) 143 3.0%
LOGON or LOGOFF 639 13.3%
COMMENT 0 0.0%
SAVE 145 3.0%
USE 0 0.0%
OTHER 131 2.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 163
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 34
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 830 40.4% 472 56.9% 14 58.8 212.1
TITLE WORD 248 12.1% 106 42.7% 5 824.1 4127.8
EXACT TITLE 34 1.7% 18 52.9% 2 10.3 20.3
JOURNAL 63 3.1% 16 25.4% 195 2511.4 6931.9
EXACT JOURNAL 31 1.5% 9 29.0% 568 1054.5 1428.7
SUBJECT 65 3.2% 28 43.1% 544 13238.5 62045.1
EXACT SUBJECT 2 0.1% 0 0.0% 14 14.0 0.0
KEYWORD 314 15.3% 54 17.2% 44 1601.0 15640.1
PUB TYPE 16 0.8% 0 0.0% 23 240.1 510.6
DATE 13 0.6% 3 23.1% 18 61.1 84.2
ADDED 362 17.6% 362 100% 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 18 0.9% 9 50.0% 721 1098.7 1124.9
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 1 0.0% 0 0.0% 1,022 1022.0 0.0
PERIODICAL 43 2.1% 3 7.0% 6 34.2 71.5
EXACT PE 7 0.3% 0 0.0% 7 10.3 9.8
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 5 0.2% 1 20.0% 1,062 1006.8 761.8
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 479 30.5% 402 83.9% 14 805.4 3674.1
Single 1,092 69.5% 276 25.3% 19 1326.1 16076.0
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 4 100% 1 25.0% 3 2.7 1.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.0%
SHORT 86.5%
LONG 2.0%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 4.3%
COMMENTS 0.0%
Other 2.3%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 12.8%
Ten most frequent errors:
1. DISPLAY command - no FIND results 51.6%
2. NS command - no next screen 18.2%
3. First word of command is invalid 15.5%
4. FIND command with invalid index name 4.7%
5. DISPLAY command contains invalid word 1.6%
6. DISPLAY command-record numbers too large 0.9%
7. PS command - no previous screen 0.9%
8. Search term missing from search command 0.9%
9. Add-on search, no index name after verb 0.6%
10. Index invalid in current database 0.6%
11. All others 4.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 16.1%
2. FIND (ABI DB) 8.9%
3. COMMANDS (ABI/PSY DBS) 7.1%
4. MAIL 7.1%
5. INDEXES (ABI DB) 5.4%
6. DATABASES 5.4%
7. ABI/INFORM DB 3.6%
8. PUBLICATION TYPES (ABI DB) 3.6%
9. DISPLAY (ABI DB) 3.6%
10. G018 3.6%
11. All others 35.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.4%
2. FIND command with zero results 10.8%
3. DISPLAY command - middle of >1 screen 9.8%
4. First word of command is invalid 8.8%
5. FIND command with invalid index name 8.8%
6. MAIL command entered w/o email address 4.9%
7. FIND command retrieves 1 book 3.9%
8. DISPLAY command - last of >1 screen 3.9%
9. DISPLAY command-complete in one screen 2.9%
10. DISPLAY command-first of >1 screen 2.9%
11. All others 12.7%
Ten most frequent SHOW requests:
1. HISTORY 75.0%
2. PUBLICATION TYPES (ABI DB) 6.3%
3. ABI NEWS 6.3%
4. MAIL SETTINGS 6.3%
5. 6320 6.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)