MELVYL ABI DATABASE TELNET STATISTICS
Time period: 11/17/01 through 11/23/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 45 52
Davis 10 0 10
Irvine 17 0 17
Los Angeles 0 12 12
Riverside 0 1 1
San Diego 0 2 2
San Francisco 5 0 5
Santa Barbara 1 0 1
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 23 23
_______ ______ _____
41 83 124
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 1 7
2-4 a.m. 2 2 349
4-6 a.m. 0 0 0
6-8 a.m. 2 2 51
8-10 a.m. 12 23 323
10-12 a.m. 24 68 373
12-2 p.m. 24 56 386
2-4 p.m. 20 46 336
4-6 p.m. 20 44 539
6-8 p.m. 4 27 245
8-10 p.m. 6 16 224
10-12 p.m. 9 20 86
__________ __________ __________ _________________
Total: 124 305 2,919
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 16 134 150
Davis 24 0 24
Irvine 33 0 33
Los Angeles 0 19 19
Riverside 0 1 1
San Diego 0 2 2
San Francisco 12 0 12
Santa Barbara 1 0 1
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 61 61
_______ ______ _____
88 217 305
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 125 952 1,077
Davis 237 0 237
Irvine 243 0 243
Los Angeles 0 127 127
Riverside 0 77 77
San Diego 0 116 116
San Francisco 102 0 102
Santa Barbara 0 0 0
Santa Cruz 54 0 54
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 886 886
_______ ______ _____
761 2,158 2,919
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.6
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) 7:19
Average session length (minutes:seconds) 12:08
Longest session recorded (minutes:seconds) 63:50
Average number of searches completed per session 2.5
Retrievals per search - median 5.0
Retrievals per search - average 508.4
Retrievals per search - standard deviation 3536.4
Percent of searches completed with 0 results 24.7%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 87.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 266 22.8%
DISPLAY (excluding automatic displays) 457 39.2%
BROWSE 3 0.3%
SELECT 0 0.0%
HELP 34 2.9%
EXPLAIN 21 1.8%
SET/RESET 48 4.1%
SHOW 18 1.5%
ADD ON (AND, OR, AND NOT) 39 3.3%
LOGON or LOGOFF 182 15.6%
COMMENT 0 0.0%
SAVE 65 5.6%
USE 0 0.0%
OTHER 36 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 41
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 91 30.7% 22 24.2% 8 33.7 119.6
TITLE WORD 46 15.5% 13 28.3% 11 53.2 106.9
EXACT TITLE 4 1.4% 3 75.0% 1 1.0 0.0
JOURNAL 6 2.0% 2 33.3% 1,010 2475.5 3013.3
EXACT JOURNAL 8 2.7% 2 25.0% 193 218.0 162.9
SUBJECT 38 12.8% 13 34.2% 34 2154.2 7016.9
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 80 27.0% 10 12.5% 20 530.6 2313.6
PUB TYPE 5 1.7% 1 20.0% 14 13.0 8.2
DATE 1 0.3% 0 0.0% 5 5.0 0.0
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 2 0.7% 0 0.0% 23,067 23066.5 32584.2
COMPANY NAME 10 3.4% 4 40.0% 9 207.8 491.5
EX COMPANY NAME 1 0.3% 0 0.0% 363 363.0 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 3 1.0% 0 0.0% 5 5.7 2.1
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
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 0.3% 0 0.0% 50 50.0 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 30 11.3% 7 23.3% 3 6.2 7.4
Single 235 88.7% 56 23.8% 24 859.4 4581.1
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 3 100% 1 33.3% 12 12.0 9.9
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.3%
SHORT 92.6%
LONG 1.4%
TAGS 0.0%
FIELDS 1.3%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 0.9%
COMMENTS 0.0%
Other 2.3%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 13.4%
Ten most frequent errors:
1. First word of command is invalid 55.8%
2. NS command - no next screen 16.0%
3. FIND command with invalid index name 7.2%
4. Max. # of ports to a Z39 db are in use 2.8%
5. DISPLAY command contains invalid word 1.7%
6. PS command - no previous screen 1.7%
7. SHOW command contains invalid word 1.1%
8. SET DB command entered w/o modifier 1.1%
9. DISPLAY command-record numbers too large 1.1%
10. Add-on search, no index name after verb 1.1%
11. All others 10.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 33.3%
2. LOCATE (ARTICLE DBS) 14.3%
3. Unrecognized term 14.3%
4. FIND (ABI DB) 9.5%
5. ABI/INFORM DB 4.8%
6. MAIL 4.8%
7. 1212 4.8%
8. 1242 4.8%
9. DATABASES 4.8%
10. ADDON SEARCH 4.8%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.1%
2. First word of command is invalid 18.2%
3. FIND command with invalid index name 9.1%
4. FIND command retrieves >1 book 5.5%
5. DISPLAY command - middle of >1 screen 5.5%
6. 207 3.6%
7. FIND command with zero results 3.6%
8. DISPLAY command-complete in one screen 3.6%
9. SET DB command entered w/o modifier 1.8%
10. PS command - no previous screen 1.8%
11. All others 18.2%
Ten most frequent SHOW requests:
1. SEARCH 33.3%
2. GLOSSARY 16.7%
3. MAIL STATUS 16.7%
4. HISTORY 16.7%
5. SETTINGS (ABI DB) 5.6%
6. ABI NEWS 5.6%
7. DATABASES 5.6%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)