MELVYL ABI DATABASE TELNET STATISTICS
Time period: 08/11/01 through 08/17/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 42 45
Davis 18 1 19
Irvine 17 0 17
Los Angeles 0 22 22
Riverside 4 1 5
San Diego 3 19 22
San Francisco 1 0 1
Santa Barbara 1 1 2
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 10 2 12
Other-Network UC n/a 22 22
_______ ______ _____
59 111 170
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 20 112
2-4 a.m. 5 22 184
4-6 a.m. 2 9 140
6-8 a.m. 1 1 2
8-10 a.m. 24 100 810
10-12 a.m. 38 130 1,961
12-2 p.m. 30 95 1,593
2-4 p.m. 30 74 1,063
4-6 p.m. 21 66 1,303
6-8 p.m. 8 25 165
8-10 p.m. 4 10 357
10-12 p.m. 5 8 114
__________ __________ __________ _________________
Total: 170 560 7,804
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 10 133 143
Davis 40 1 41
Irvine 50 0 50
Los Angeles 0 89 89
Riverside 21 6 27
San Diego 6 75 81
San Francisco 17 0 17
Santa Barbara 12 3 15
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 46 2 48
Other-Network UC n/a 46 46
_______ ______ _____
202 358 560
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 144 3,754 3,898
Davis 121 358 479
Irvine 348 0 348
Los Angeles 0 1,202 1,202
Riverside 47 212 259
San Diego 24 867 891
San Francisco 197 0 197
Santa Barbara 16 47 63
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 26 26
Los Alamos 0 0 0
Other - UC 106 20 126
Other-Network UC n/a 315 315
_______ ______ _____
1,003 6,801 7,804
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) 6:11
Average session length (minutes:seconds) 13:10
Longest session recorded (minutes:seconds) 150:25
Average number of searches completed per session 3.3
Retrievals per search - median 11.0
Retrievals per search - average 967.0
Retrievals per search - standard deviation 5429.4
Percent of searches completed with 0 results 24.8%
Percent of searches entered that are long 1.8%
Percent of long searches completed
(includes partial results) 60.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 507 27.6%
DISPLAY (excluding automatic displays) 811 44.2%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 36 2.0%
EXPLAIN 22 1.2%
SET/RESET 66 3.6%
SHOW 11 0.6%
ADD ON (AND, OR, AND NOT) 53 2.9%
LOGON or LOGOFF 224 12.2%
COMMENT 0 0.0%
SAVE 48 2.6%
USE 0 0.0%
OTHER 57 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 191
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 18
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 121 22.0% 33 27.3% 12 32.9 91.6
TITLE WORD 100 18.1% 33 33.0% 14 408.9 2198.1
EXACT TITLE 10 1.8% 4 40.0% 1 1.8 1.3
JOURNAL 19 3.4% 8 42.1% 23 4235.2 8598.6
EXACT JOURNAL 37 6.7% 6 16.2% 870 2703.4 4503.8
SUBJECT 26 4.7% 12 46.2% 537 10596.1 26475.6
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 191 34.7% 39 20.4% 66 1299.8 4891.2
PUB TYPE 1 0.2% 0 0.0% 156 156.0 0.0
DATE 22 4.0% 8 36.4% 300 396.9 488.4
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% 49 190.6 339.6
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 12 2.2% 2 16.7% 6 233.2 571.7
EXACT PE 4 0.7% 0 0.0% 7 16.5 23.5
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% 1 50.0% 9,445 9445.0 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 47 9.3% 18 38.3% 23 552.9 1755.6
Single 456 90.7% 110 24.1% 28 1425.0 6780.6
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 3.2%
SHORT 89.2%
LONG 0.2%
TAGS 0.1%
FIELDS 3.1%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.1%
COMMENTS 0.0%
Other 1.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.4%
Ten most frequent errors:
1. NS command - no next screen 31.6%
2. First word of command is invalid 26.9%
3. FIND command with invalid index name 8.5%
4. PS command - no previous screen 7.5%
5. DISPLAY command contains invalid word 4.2%
6. Valid command at an inappropriate time 3.8%
7. DISPLAY command - no FIND results 1.9%
8. DATE search with unrecognized word 1.4%
9. 125 1.4%
10. Invalid SET DATABASE command issued 0.9%
11. All others 11.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 13.6%
2. COMMANDS (ABI/PSY DBS) 13.6%
3. DISPLAY (ABI DB) 13.6%
4. FIND (ABI DB) 9.1%
5. LOCATE (ARTICLE DBS) 9.1%
6. MAGS TEXT 4.5%
7. ABI/INFORM DB 4.5%
8. INDEXES (ABI DB) 4.5%
9. B042 4.5%
10. DATE (ABI DB) 4.5%
11. All others 18.2%
Ten most frequent HELP situations:
1. First word of command is invalid 15.5%
2. Help requested from SET DB command 15.5%
3. FIND command with invalid index name 12.1%
4. NS command - no next screen 6.9%
5. FIND command with zero results 6.9%
6. DISPLAY command-first of >1 screen 6.9%
7. 125 5.2%
8. FIND command retrieves >1 book 5.2%
9. DISPLAY command - middle of >1 screen 5.2%
10. F/BR command with invalid search term 3.4%
11. All others 17.2%
Ten most frequent SHOW requests:
1. HISTORY 72.7%
2. ABI NEWS 18.2%
3. SEARCH 9.1%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)