MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/01/00 through 05/31/00
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
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Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 53 314 367
Davis 161 2 163
Irvine 98 0 98
Los Angeles 19 153 172
Riverside 126 9 135
San Diego 29 32 61
San Francisco 75 0 75
Santa Barbara 24 18 42
Santa Cruz 44 8 52
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 3 4 7
Other-Network UC n/a 277 277
_______ ______ _____
632 819 1,451
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 20 60 2,354
2-4 a.m. 9 27 899
4-6 a.m. 7 27 173
6-8 a.m. 22 49 375
8-10 a.m. 142 376 3,917
10-12 a.m. 223 567 5,966
12-2 p.m. 243 672 9,355
2-4 p.m. 302 801 9,314
4-6 p.m. 232 730 14,579
6-8 p.m. 118 416 5,142
8-10 p.m. 81 230 1,986
10-12 p.m. 52 161 4,020
__________ __________ __________ _________________
Total: 1,451 4,116 58,080
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 138 866 1,004
Davis 456 10 466
Irvine 255 0 255
Los Angeles 83 497 580
Riverside 398 26 424
San Diego 79 141 220
San Francisco 214 0 214
Santa Barbara 66 73 139
Santa Cruz 196 13 209
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 6 6
Los Alamos 0 0 0
Other - UC 4 7 11
Other-Network UC n/a 588 588
_______ ______ _____
1,889 2,227 4,116
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 937 12,716 13,653
Davis 4,794 34 4,828
Irvine 2,532 0 2,532
Los Angeles 2,330 11,206 13,536
Riverside 3,497 160 3,657
San Diego 435 747 1,182
San Francisco 5,120 0 5,120
Santa Barbara 453 306 759
Santa Cruz 2,008 419 2,427
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 68 68
Los Alamos 0 0 0
Other - UC 4 1 5
Other-Network UC n/a 10,313 10,313
_______ ______ _____
22,110 35,970 58,080
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.2
Standard deviation in seconds 5.4
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
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Median session length (minutes:seconds) 10:02
Average session length (minutes:seconds) 13:59
Longest session recorded (minutes:seconds) 229:51
Average number of searches completed per session 2.8
Retrievals per search - median 7.0
Retrievals per search - average 998.8
Retrievals per search - standard deviation 5827.3
Percent of searches completed with 0 results 27.7%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 61.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,717 24.1%
DISPLAY (excluding automatic displays) 7,185 46.5%
BROWSE 35 0.2%
SELECT 3 0.0%
HELP 268 1.7%
EXPLAIN 272 1.8%
SET/RESET 635 4.1%
SHOW 65 0.4%
ADD ON (AND, OR, AND NOT) 399 2.6%
LOGON or LOGOFF 1,777 11.5%
COMMENT 0 0.0%
SAVE 614 4.0%
USE 4 0.0%
OTHER 508 3.3%
2.1 Article Text
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DISPLAY TEXT commands 808
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 77
displays or when any of these paging options is set.
TEXT included with MAIL commands 0
SET DISPLAY TEXT commands 1
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 968 23.5% 244 25.2% 10 49.9 197.4
TITLE WORD 713 17.3% 268 37.6% 6 139.6 1182.6
EXACT TITLE 61 1.5% 34 55.7% 1 19.1 82.2
JOURNAL 262 6.4% 119 45.4% 152 3444.3 11308.0
EXACT JOURNAL 121 2.9% 45 37.2% 487 3231.4 7010.9
SUBJECT 356 8.7% 202 56.7% 94 2515.5 6638.2
EXACT SUBJECT 35 0.9% 17 48.6% 746 3521.5 6478.9
KEYWORD 1,252 30.4% 176 14.1% 65 2285.9 9299.6
PUB TYPE 15 0.4% 2 13.3% 22 130.6 217.1
DATE 147 3.6% 31 21.1% 16 1187.9 6169.3
ADDED 4 0.1% 0 0.0% 11,819 11081.3 1475.5
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 54 1.3% 18 33.3% 26 534.6 2645.4
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 74 1.8% 12 16.2% 6 29.0 74.8
EXACT PE 23 0.6% 5 21.7% 4 8.7 11.9
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 28 0.7% 3 10.7% 163 2275.6 4304.8
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 395 10.7% 132 33.4% 7 619.7 4265.2
Single 3,287 89.3% 904 27.5% 28 1544.4 7176.8
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 35 100% 7 20.0% 2 5.1 6.8
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.9%
SHORT 88.1%
LONG 1.2%
TAGS 0.0%
FIELDS 2.1%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 2.2%
COMMENTS 0.0%
Other 2.5%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.6%
Ten most frequent errors:
1. First word of command is invalid 32.1%
2. NS command - no next screen 29.8%
3. FIND command with invalid index name 9.5%
4. DISPLAY command contains invalid word 4.5%
5. PS command - no previous screen 4.4%
6. Valid command at an inappropriate time 2.2%
7. DISPLAY command-record numbers too large 1.6%
8. Search term missing from search command 1.5%
9. Index invalid in current database 1.1%
10. Command contains escape or arrow key 1.1%
11. All others 12.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 27.9%
2. FIND (ABI DB) 11.0%
3. LOCATE (ARTICLE DBS) 8.8%
4. COMMANDS (ABI/PSY DBS) 7.4%
5. INDEXES (ABI DB) 5.5%
6. MAIL 4.0%
7. DISPLAY (ABI DB) 3.7%
8. MAGS TEXT 3.3%
9. DATABASES 3.3%
10. ADDON SEARCH 2.9%
11. All others 22.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 22.4%
2. First word of command is invalid 15.9%
3. FIND command with zero results 10.7%
4. FIND command with invalid index name 7.0%
5. DISPLAY command-first of >1 screen 6.7%
6. DISPLAY command - middle of >1 screen 4.8%
7. FIND command retrieves >1 book 4.1%
8. DISPLAY command - last of >1 screen 3.9%
9. NS command - no next screen 3.3%
10. DISPLAY command-complete in one screen 2.8%
11. All others 18.3%
Ten most frequent SHOW requests:
1. HISTORY 45.6%
2. SEARCH 36.8%
3. MAIL STATUS 7.0%
4. MAIL SETTINGS 5.3%
5. SETTINGS (ABI DB) 1.8%
6. GLOSSARY 1.8%
7. DATABASES 1.8%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)