MELVYL ABI DATABASE TELNET STATISTICS
Time period: 07/14/01 through 07/20/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 6 63 69
Davis 17 0 17
Irvine 13 0 13
Los Angeles 0 32 32
Riverside 4 1 5
San Diego 2 12 14
San Francisco 11 0 11
Santa Barbara 1 4 5
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 39 39
_______ ______ _____
55 154 209
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 19 390
2-4 a.m. 0 0 0
4-6 a.m. 2 11 11
6-8 a.m. 7 19 351
8-10 a.m. 20 56 662
10-12 a.m. 45 136 1,368
12-2 p.m. 31 67 777
2-4 p.m. 38 103 1,446
4-6 p.m. 31 92 1,536
6-8 p.m. 17 44 274
8-10 p.m. 12 35 296
10-12 p.m. 4 25 468
__________ __________ __________ _________________
Total: 209 607 7,579
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 27 167 194
Davis 56 0 56
Irvine 25 0 25
Los Angeles 0 94 94
Riverside 16 16 32
San Diego 3 28 31
San Francisco 42 0 42
Santa Barbara 1 11 12
Santa Cruz 7 0 7
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 111 111
_______ ______ _____
177 430 607
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 401 3,091 3,492
Davis 444 0 444
Irvine 121 0 121
Los Angeles 0 664 664
Riverside 85 252 337
San Diego 49 156 205
San Francisco 371 0 371
Santa Barbara 0 292 292
Santa Cruz 79 0 79
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 639 639
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 935 935
_______ ______ _____
1,550 6,029 7,579
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 0.8
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) 7:00
Average session length (minutes:seconds) 12:06
Longest session recorded (minutes:seconds) 103:55
Average number of searches completed per session 2.9
Retrievals per search - median 6.5
Retrievals per search - average 739.3
Retrievals per search - standard deviation 5841.7
Percent of searches completed with 0 results 25.0%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 41.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 556 27.7%
DISPLAY (excluding automatic displays) 901 44.9%
BROWSE 6 0.3%
SELECT 0 0.0%
HELP 23 1.1%
EXPLAIN 17 0.8%
SET/RESET 76 3.8%
SHOW 3 0.1%
ADD ON (AND, OR, AND NOT) 51 2.5%
LOGON or LOGOFF 274 13.7%
COMMENT 0 0.0%
SAVE 49 2.4%
USE 0 0.0%
OTHER 57 2.8%
2.1 Article Text
_________________
DISPLAY TEXT commands 61
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 206 34.3% 54 26.2% 14 52.9 110.3
TITLE WORD 99 16.5% 42 42.4% 4 39.9 84.6
EXACT TITLE 5 0.8% 1 20.0% 1 1.3 0.5
JOURNAL 38 6.3% 20 52.6% 1,275 10473.5 21571.7
EXACT JOURNAL 12 2.0% 3 25.0% 572 9456.1 17256.7
SUBJECT 25 4.2% 9 36.0% 66 204.5 305.9
EXACT SUBJECT 11 1.8% 5 45.5% 328 14550.7 34838.3
KEYWORD 155 25.8% 28 18.1% 50 506.8 1587.0
PUB TYPE 2 0.3% 0 0.0% 26 25.5 31.8
DATE 16 2.7% 2 12.5% 84 1175.9 4023.3
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 0 0.0% 0 0.0% 0 0.0 0.0
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 0.2% 1 100% 0 0.0 0.0
PERIODICAL 16 2.7% 0 0.0% 2 14.1 25.7
EXACT PE 13 2.2% 0 0.0% 2 5.2 7.1
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% 679 679.0 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 46 8.4% 19 41.3% 48 715.1 2915.3
Single 504 91.6% 126 25.0% 16 1103.0 7295.7
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 6 100% 3 50.0% 1 1.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.7%
SHORT 85.1%
LONG 0.5%
TAGS 0.0%
FIELDS 4.7%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 3.8%
COMMENTS 0.0%
Other 3.1%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.2%
Ten most frequent errors:
1. NS command - no next screen 44.9%
2. First word of command is invalid 29.1%
3. FIND command with invalid index name 7.0%
4. DISPLAY command contains invalid word 4.8%
5. PS command - no previous screen 3.1%
6. BROWSE command with invalid index name 1.3%
7. Command contains escape or arrow key 1.3%
8. DISPLAY command - no FIND results 0.9%
9. DISPLAY command with >1 format 0.9%
10. DATE search with unrecognized word 0.9%
11. All others 5.7%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 17.6%
2. ABI/INFORM DB 17.6%
3. FIND (ABI DB) 11.8%
4. DATE (ABI DB) 11.8%
5. B089 11.8%
6. COMMANDS (ABI/PSY DBS) 5.9%
7. B048 5.9%
8. DISPLAY (ABI DB) 5.9%
9. LOCATE (ARTICLE DBS) 5.9%
10. Unrecognized term 5.9%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 20.0%
2. First word of command is invalid 15.0%
3. 117 12.5%
4. FIND command with invalid index name 7.5%
5. DISPLAY command-complete in one screen 7.5%
6. DISPLAY command - middle of >1 screen 7.5%
7. 125 5.0%
8. FIND command with zero results 5.0%
9. 816 5.0%
10. DISPLAY command - no FIND results 2.5%
11. All others 12.5%
Ten most frequent SHOW requests:
1. MAIL STATUS 50.0%
2. HISTORY 50.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)