MELVYL ABI DATABASE TELNET STATISTICS
Time period: 12/23/00 through 12/29/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 15 15
Davis 1 0 1
Irvine 6 0 6
Los Angeles 0 15 15
Riverside 5 0 5
San Diego 2 12 14
San Francisco 2 0 2
Santa Barbara 0 2 2
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 21 21
_______ ______ _____
16 66 82
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 16 179
2-4 a.m. 1 6 36
4-6 a.m. 0 0 0
6-8 a.m. 2 3 163
8-10 a.m. 9 25 327
10-12 a.m. 15 71 532
12-2 p.m. 13 33 663
2-4 p.m. 14 32 520
4-6 p.m. 12 39 317
6-8 p.m. 2 5 73
8-10 p.m. 3 24 303
10-12 p.m. 4 8 468
__________ __________ __________ _________________
Total: 82 262 3,581
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 0 39 39
Davis 1 0 1
Irvine 33 0 33
Los Angeles 0 57 57
Riverside 23 0 23
San Diego 10 42 52
San Francisco 12 0 12
Santa Barbara 0 5 5
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 39 39
_______ ______ _____
79 183 262
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 461 461
Davis 1 0 1
Irvine 241 0 241
Los Angeles 0 464 464
Riverside 116 0 116
San Diego 380 1,302 1,682
San Francisco 56 0 56
Santa Barbara 0 58 58
Santa Cruz 0 26 26
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 476 476
_______ ______ _____
794 2,787 3,581
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.6
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) 12:27
Average session length (minutes:seconds) 21:33
Longest session recorded (minutes:seconds) 479:21
Average number of searches completed per session 3.2
Retrievals per search - median 9.0
Retrievals per search - average 538.7
Retrievals per search - standard deviation 3792.2
Percent of searches completed with 0 results 22.3%
Percent of searches entered that are long 3.1%
Percent of long searches completed
(includes partial results) 87.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 232 22.6%
DISPLAY (excluding automatic displays) 516 50.2%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 5 0.5%
EXPLAIN 13 1.3%
SET/RESET 28 2.7%
SHOW 5 0.5%
ADD ON (AND, OR, AND NOT) 30 2.9%
LOGON or LOGOFF 116 11.3%
COMMENT 0 0.0%
SAVE 52 5.1%
USE 0 0.0%
OTHER 30 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 26
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 5
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 84 32.2% 14 16.7% 8 91.4 424.9
TITLE WORD 48 18.4% 17 35.4% 15 68.1 137.9
EXACT TITLE 8 3.1% 1 12.5% 1 5.4 9.0
JOURNAL 11 4.2% 4 36.4% 36 84.4 146.2
EXACT JOURNAL 8 3.1% 2 25.0% 1,592 2188.7 2309.1
SUBJECT 17 6.5% 7 41.2% 283 1278.8 3070.5
EXACT SUBJECT 2 0.8% 0 0.0% 2,483 2483.0 0.0
KEYWORD 70 26.8% 13 18.6% 42 1130.7 7485.6
PUB TYPE 3 1.1% 0 0.0% 282 240.3 211.6
DATE 4 1.5% 2 50.0% 1,289 1289.0 1820.1
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 4 1.5% 1 25.0% 22 19.0 15.7
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 2 0.8% 0 0.0% 12 12.0 8.5
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
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 0 0.0% 0 0.0% 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 27 11.7% 10 37.0% 15 268.8 625.5
Single 203 88.3% 40 19.7% 20 602.9 4531.2
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 5.3%
SHORT 86.1%
LONG 1.5%
TAGS 0.0%
FIELDS 4.6%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 0.5%
COMMENTS 0.0%
Other 2.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.2%
Ten most frequent errors:
1. NS command - no next screen 46.3%
2. First word of command is invalid 18.8%
3. FIND command with invalid index name 11.3%
4. DISPLAY command contains invalid word 8.8%
5. SET command with invalid setting 1.3%
6. 21 1.3%
7. DISPLAY command-record numbers too large 1.3%
8. Search term missing from search command 1.3%
9. Add-on search, no index name after verb 1.3%
10. DATE search with unrecognized word 1.3%
11. All others 7.5%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 30.8%
2. DATE (ABI DB) 15.4%
3. A060 7.7%
4. GUIDE (ABI DB) 7.7%
5. FIND (ABI DB) 7.7%
6. COMMANDS (ABI/PSY DBS) 7.7%
7. B048 7.7%
8. PUBLICATION TYPES (ABI DB) 7.7%
9. B089 7.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. DISPLAY command-first of >1 screen 33.3%
2. Help requested from SET DB command 22.2%
3. FIND command with zero results 16.7%
4. First word of command is invalid 5.6%
5. FIND command with invalid index name 5.6%
6. DISPLAY command-complete in one screen 5.6%
7. DISPLAY command - middle of >1 screen 5.6%
8. F/BR with index invalid in current DB 5.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. MAIL STATUS 60.0%
2. PUBLICATION TYPES (ABI DB) 20.0%
3. HISTORY 20.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)