MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/01/00 through 10/31/00
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 48 319 367
Davis 78 0 78
Irvine 100 0 100
Los Angeles 7 203 210
Riverside 19 8 27
San Diego 27 13 40
San Francisco 54 0 54
Santa Barbara 29 20 49
Santa Cruz 20 2 22
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 4 4
Los Alamos 0 0 0
Other - UC 1 13 14
Other-Network UC n/a 261 261
_______ ______ _____
383 843 1,226
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 26 243
2-4 a.m. 5 14 83
4-6 a.m. 9 23 343
6-8 a.m. 25 55 644
8-10 a.m. 159 364 3,521
10-12 a.m. 236 637 8,124
12-2 p.m. 174 562 5,981
2-4 p.m. 259 820 11,298
4-6 p.m. 153 513 9,692
6-8 p.m. 60 208 2,780
8-10 p.m. 92 189 2,406
10-12 p.m. 47 156 3,132
__________ __________ __________ _________________
Total: 1,226 3,567 48,247
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 225 987 1,212
Davis 161 0 161
Irvine 423 0 423
Los Angeles 39 536 575
Riverside 21 48 69
San Diego 95 30 125
San Francisco 171 0 171
Santa Barbara 74 37 111
Santa Cruz 78 3 81
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 14 14
Los Alamos 0 0 0
Other - UC 0 95 95
Other-Network UC n/a 530 530
_______ ______ _____
1,287 2,280 3,567
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,779 16,903 18,682
Davis 1,505 0 1,505
Irvine 3,803 0 3,803
Los Angeles 522 8,212 8,734
Riverside 205 240 445
San Diego 990 592 1,582
San Francisco 1,950 0 1,950
Santa Barbara 302 625 927
Santa Cruz 1,472 22 1,494
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 177 177
Los Alamos 0 0 0
Other - UC 10 3,489 3,499
Other-Network UC n/a 5,449 5,449
_______ ______ _____
12,538 35,709 48,247
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.2
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) 10:18
Average session length (minutes:seconds) 14:55
Longest session recorded (minutes:seconds) 343:25
Average number of searches completed per session 2.9
Retrievals per search - median 6.0
Retrievals per search - average 1291.8
Retrievals per search - standard deviation 11339
Percent of searches completed with 0 results 27.1%
Percent of searches entered that are long 1.9%
Percent of long searches completed
(includes partial results) 73.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,199 22.4%
DISPLAY (excluding automatic displays) 7,208 50.5%
BROWSE 13 0.1%
SELECT 2 0.0%
HELP 229 1.6%
EXPLAIN 223 1.6%
SET/RESET 512 3.6%
SHOW 92 0.6%
ADD ON (AND, OR, AND NOT) 368 2.6%
LOGON or LOGOFF 1,532 10.7%
COMMENT 0 0.0%
SAVE 498 3.5%
USE 4 0.0%
OTHER 420 2.9%
2.1 Article Text
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DISPLAY TEXT commands 757
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 78
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 907 25.6% 254 28.0% 9 40.7 123.7
TITLE WORD 620 17.5% 237 38.2% 5 50.3 132.1
EXACT TITLE 18 0.5% 8 44.4% 2 4.9 5.6
JOURNAL 171 4.8% 73 42.7% 151 3571.3 24179.4
EXACT JOURNAL 135 3.8% 48 35.6% 1,165 5383.4 15204.4
SUBJECT 288 8.1% 130 45.1% 107 4302.9 12946.4
EXACT SUBJECT 55 1.6% 2 3.6% 1,919 3688.1 16037.8
KEYWORD 1,032 29.1% 191 18.5% 52 2999.1 19638.8
PUB TYPE 21 0.6% 4 19.0% 156 2283.3 8890.2
DATE 83 2.3% 13 15.7% 26 206.3 1223.3
ADDED 9 0.3% 0 0.0% 11,199 11349.3 3334.9
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 2 0.1% 0 0.0% 5,161 5160.5 7177.8
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 49 1.4% 14 28.6% 68 246.7 451.3
EX COMPANY NAME 4 0.1% 2 50.0% 52 52.0 14.1
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 111 3.1% 12 10.8% 5 47.7 166.3
EXACT PE 18 0.5% 0 0.0% 4 11.3 13.2
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 24 0.7% 3 12.5% 68 1239.1 3033.2
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 344 10.8% 113 32.8% 10 156.8 835.7
Single 2,839 89.2% 764 26.9% 23 2106.8 14706.1
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 12 92.3% 2 16.7% 6 9.4 9.3
EXACT SUBJECT 1 7.7% 0 0.0% 8 8.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 88.7%
LONG 0.9%
TAGS 0.0%
FIELDS 1.6%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 3.0%
COMMENTS 0.0%
Other 2.5%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.2%
Ten most frequent errors:
1. NS command - no next screen 30.6%
2. First word of command is invalid 29.9%
3. FIND command with invalid index name 8.9%
4. DISPLAY command contains invalid word 5.8%
5. PS command - no previous screen 3.6%
6. DISPLAY command - no FIND results 1.9%
7. Valid command at an inappropriate time 1.5%
8. DISPLAY command-record numbers too large 1.5%
9. Search term missing from search command 1.5%
10. Add-on search, no index name after verb 1.1%
11. All others 13.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 23.3%
2. LOCATE (ARTICLE DBS) 17.0%
3. INDEXES (ABI DB) 7.2%
4. FIND (ABI DB) 7.2%
5. COMMANDS (ABI/PSY DBS) 5.8%
6. Unrecognized term 4.9%
7. MAIL 4.0%
8. ABI/INFORM DB 3.6%
9. Unrecognized term-reminders off 2.7%
10. ADDON SEARCH 2.2%
11. All others 22.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.1%
2. First word of command is invalid 16.4%
3. FIND command with invalid index name 7.1%
4. DISPLAY command-complete in one screen 4.9%
5. DISPLAY command-first of >1 screen 4.2%
6. FIND command with zero results 4.0%
7. FIND command retrieves >1 book 3.8%
8. DISPLAY command - last of >1 screen 3.5%
9. DISPLAY command - middle of >1 screen 2.7%
10. Valid command at an inappropriate time 2.2%
11. All others 25.2%
Ten most frequent SHOW requests:
1. HISTORY 67.1%
2. SEARCH 13.4%
3. MAIL STATUS 9.8%
4. GLOSSARY 2.4%
5. B149 1.2%
6. ABI NEWS 1.2%
7. 0408 1.2%
8. SYSTEM NEWS 1.2%
9. MAIL SETTINGS 1.2%
10. DISPLAY 1.2%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)