MELVYL ABI DATABASE TELNET STATISTICS
Time period: 07/01/01 through 07/31/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 37 251 288
Davis 51 0 51
Irvine 60 0 60
Los Angeles 1 95 96
Riverside 11 2 13
San Diego 13 37 50
San Francisco 30 0 30
Santa Barbara 5 10 15
Santa Cruz 3 1 4
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 6 6
Los Alamos 0 0 0
Other - UC 0 4 4
Other-Network UC n/a 218 218
_______ ______ _____
211 624 835
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 9 51 560
2-4 a.m. 6 22 325
4-6 a.m. 9 35 94
6-8 a.m. 29 78 757
8-10 a.m. 93 195 2,079
10-12 a.m. 163 443 6,047
12-2 p.m. 149 381 5,045
2-4 p.m. 173 596 7,510
4-6 p.m. 105 313 4,961
6-8 p.m. 40 93 660
8-10 p.m. 32 106 1,276
10-12 p.m. 27 120 1,637
__________ __________ __________ _________________
Total: 835 2,433 30,951
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 128 683 811
Davis 179 1 180
Irvine 183 0 183
Los Angeles 1 280 281
Riverside 45 17 62
San Diego 45 112 157
San Francisco 128 0 128
Santa Barbara 14 22 36
Santa Cruz 39 2 41
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 11 11
Los Alamos 0 0 0
Other - UC 0 16 16
Other-Network UC n/a 527 527
_______ ______ _____
762 1,671 2,433
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,882 10,192 12,074
Davis 1,371 0 1,371
Irvine 2,795 0 2,795
Los Angeles 98 4,289 4,387
Riverside 368 283 651
San Diego 247 584 831
San Francisco 1,268 0 1,268
Santa Barbara 170 540 710
Santa Cruz 224 490 714
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 936 936
Los Alamos 0 0 0
Other - UC 0 288 288
Other-Network UC n/a 4,926 4,926
_______ ______ _____
8,423 22,528 30,951
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 0.9
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
_________________________________________
Median session length (minutes:seconds) 8:54
Average session length (minutes:seconds) 13:41
Longest session recorded (minutes:seconds) 375:11
Average number of searches completed per session 2.9
Retrievals per search - median 8.0
Retrievals per search - average 842.7
Retrievals per search - standard deviation 5652.6
Percent of searches completed with 0 results 23.7%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 54.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,190 27.4%
DISPLAY (excluding automatic displays) 3,527 44.2%
BROWSE 7 0.1%
SELECT 2 0.0%
HELP 81 1.0%
EXPLAIN 93 1.2%
SET/RESET 360 4.5%
SHOW 20 0.3%
ADD ON (AND, OR, AND NOT) 242 3.0%
LOGON or LOGOFF 1,037 13.0%
COMMENT 0 0.0%
SAVE 198 2.5%
USE 0 0.0%
OTHER 233 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 256
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 24
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 708 29.7% 151 21.3% 12 74.7 204.4
TITLE WORD 426 17.9% 169 39.7% 7 105.1 725.2
EXACT TITLE 37 1.6% 15 40.5% 2 18.0 42.7
JOURNAL 110 4.6% 41 37.3% 335 4251.1 11846.5
EXACT JOURNAL 73 3.1% 21 28.8% 495 3033.3 7884.5
SUBJECT 123 5.2% 40 32.5% 277 5487.3 16694.9
EXACT SUBJECT 23 1.0% 12 52.2% 2,302 12104.5 26628.2
KEYWORD 633 26.6% 95 15.0% 47 1045.1 5825.3
PUB TYPE 15 0.6% 0 0.0% 52 602.4 1540.2
DATE 80 3.4% 12 15.0% 21 289.8 1832.9
ADDED 3 0.1% 0 0.0% 10,315 7771.3 4405.8
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 1 0.0% 1 100% 0 0.0 0.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 1 0.0% 0 0.0% 95 95.0 0.0
COMPANY NAME 11 0.5% 2 18.2% 12 205.7 258.3
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 28 1.2% 5 17.9% 756 3018.0 7892.4
PERIODICAL 57 2.4% 11 19.3% 4 18.4 32.7
EXACT PE 28 1.2% 1 3.6% 2 7.8 10.2
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 26 1.1% 2 7.7% 5,012 7252.8 7988.1
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 206 9.5% 49 23.8% 20 1354.7 4875.8
Single 1,961 90.5% 479 24.4% 22 1040.9 6505.1
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 7 100% 3 42.9% 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 5.5%
SHORT 85.7%
LONG 0.9%
TAGS 0.0%
FIELDS 3.2%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.8%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.2%
Ten most frequent errors:
1. First word of command is invalid 43.7%
2. NS command - no next screen 30.6%
3. FIND command with invalid index name 7.3%
4. DISPLAY command contains invalid word 4.0%
5. DISPLAY command - no FIND results 1.5%
6. PS command - no previous screen 1.5%
7. Valid command at an inappropriate time 1.2%
8. DISPLAY command-record numbers too large 1.1%
9. Command contains escape or arrow key 1.0%
10. Add-on search, no index name after verb 0.9%
11. All others 7.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.4%
2. FIND (ABI DB) 20.4%
3. ABI/INFORM DB 7.5%
4. Unrecognized term 6.5%
5. INDEXES (ABI DB) 5.4%
6. COMMANDS (ABI/PSY DBS) 5.4%
7. DATABASES 5.4%
8. MAIL 3.2%
9. 1212 3.2%
10. DATE (ABI DB) 2.2%
11. All others 20.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.5%
2. FIND command with invalid index name 12.1%
3. FIND command with zero results 11.5%
4. DISPLAY command - middle of >1 screen 10.3%
5. First word of command is invalid 9.8%
6. 117 2.9%
7. DISPLAY command-complete in one screen 2.9%
8. Add-on without index name after verb 2.3%
9. NS command - no next screen 1.7%
10. DISPLAY command - last of >1 screen 1.7%
11. All others 14.4%
Ten most frequent SHOW requests:
1. HISTORY 66.7%
2. LIBRARY LOCATIONS 16.7%
3. GLOSSARY 5.6%
4. SEARCH 5.6%
5. MAIL STATUS 5.6%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)