MELVYL ABI DATABASE TELNET STATISTICS
Time period: 07/21/01 through 07/27/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 82 85
Davis 6 0 6
Irvine 9 0 9
Los Angeles 0 19 19
Riverside 3 1 4
San Diego 3 8 11
San Francisco 9 0 9
Santa Barbara 3 2 5
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 56 56
_______ ______ _____
37 170 207
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 6 13
2-4 a.m. 4 19 298
4-6 a.m. 2 2 0
6-8 a.m. 4 5 15
8-10 a.m. 23 39 289
10-12 a.m. 41 89 1,403
12-2 p.m. 39 74 986
2-4 p.m. 53 179 1,715
4-6 p.m. 25 99 1,425
6-8 p.m. 3 7 52
8-10 p.m. 3 26 156
10-12 p.m. 6 40 901
__________ __________ __________ _________________
Total: 207 585 7,253
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 13 248 261
Davis 15 0 15
Irvine 27 0 27
Los Angeles 0 52 52
Riverside 11 1 12
San Diego 12 20 32
San Francisco 53 0 53
Santa Barbara 11 2 13
Santa Cruz 3 0 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 110 110
_______ ______ _____
145 440 585
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 224 3,203 3,427
Davis 143 0 143
Irvine 137 0 137
Los Angeles 0 929 929
Riverside 78 31 109
San Diego 66 52 118
San Francisco 469 0 469
Santa Barbara 101 173 274
Santa Cruz 15 0 15
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 297 297
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 1,335 1,335
_______ ______ _____
1,233 6,020 7,253
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) 10:57
Average session length (minutes:seconds) 14:46
Longest session recorded (minutes:seconds) 82:55
Average number of searches completed per session 2.8
Retrievals per search - median 6.0
Retrievals per search - average 1106.4
Retrievals per search - standard deviation 7683.0
Percent of searches completed with 0 results 26.8%
Percent of searches entered that are long 3.1%
Percent of long searches completed
(includes partial results) 44.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 542 28.0%
DISPLAY (excluding automatic displays) 785 40.5%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 30 1.5%
EXPLAIN 27 1.4%
SET/RESET 115 5.9%
SHOW 7 0.4%
ADD ON (AND, OR, AND NOT) 43 2.2%
LOGON or LOGOFF 221 11.4%
COMMENT 0 0.0%
SAVE 115 5.9%
USE 0 0.0%
OTHER 53 2.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 69
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 4
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 152 26.5% 30 19.7% 9 52.7 114.0
TITLE WORD 128 22.3% 54 42.2% 10 62.6 124.8
EXACT TITLE 12 2.1% 6 50.0% 2 5.7 9.5
JOURNAL 23 4.0% 8 34.8% 74 1330.1 3212.9
EXACT JOURNAL 14 2.4% 3 21.4% 1,704 1518.1 1383.4
SUBJECT 50 8.7% 16 32.0% 378 7865.8 23334.1
EXACT SUBJECT 10 1.7% 6 60.0% 2,302 2302.0 0.0
KEYWORD 139 24.2% 21 15.1% 43 2428.3 10663.6
PUB TYPE 2 0.3% 0 0.0% 9 8.5 4.9
DATE 5 0.9% 0 0.0% 14 126.4 239.7
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 1 0.2% 1 100% 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 4 0.7% 0 0.0% 192 214.0 240.6
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 10 1.7% 3 30.0% 12 27.1 36.5
EXACT PE 4 0.7% 0 0.0% 5 7.0 7.3
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 20 3.5% 0 0.0% 5,012 7600.3 8463.4
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 39 7.3% 5 12.8% 21 3839.7 7270.6
Single 494 92.7% 138 27.9% 21 1412.9 9438.6
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 5.1%
SHORT 87.6%
LONG 0.3%
TAGS 0.0%
FIELDS 3.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.8%
COMMENTS 0.0%
Other 1.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 15.4%
Ten most frequent errors:
1. First word of command is invalid 60.3%
2. NS command - no next screen 13.9%
3. FIND command with invalid index name 9.1%
4. DISPLAY command contains invalid word 3.1%
5. DISPLAY command - no FIND results 1.4%
6. DISPLAY command-record numbers too large 1.4%
7. Add-on search, no index name after verb 1.4%
8. Command contains escape or arrow key 1.4%
9. Search term missing from search command 1.1%
10. Valid command at an inappropriate time 0.8%
11. All others 5.9%
Ten most frequent EXPLAIN requests:
1. FIND (ABI DB) 40.7%
2. GUIDE (ABI DB) 25.9%
3. ABI/INFORM DB 7.4%
4. INDEXES (ABI DB) 3.7%
5. COMMANDS (ABI/PSY DBS) 3.7%
6. PUBLICATION TYPES (ABI DB) 3.7%
7. LOCATE (ARTICLE DBS) 3.7%
8. G175 3.7%
9. Unrecognized term 3.7%
10. ADDON SEARCH 3.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 31.6%
2. FIND command with invalid index name 24.6%
3. DISPLAY command - middle of >1 screen 15.8%
4. Add-on without index name after verb 7.0%
5. FIND command with zero results 7.0%
6. First word of command is invalid 3.5%
7. Valid command at an inappropriate time 1.8%
8. DISPLAY command - no FIND results 1.8%
9. NS command - no next screen 1.8%
10. DISPLAY command-complete in one screen 1.8%
11. All others 3.5%
Ten most frequent SHOW requests:
1. HISTORY 71.4%
2. GLOSSARY 14.3%
3. SEARCH 14.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)