MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/06/01 through 01/12/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 71 75
Davis 13 1 14
Irvine 26 0 26
Los Angeles 2 23 25
Riverside 3 6 9
San Diego 1 7 8
San Francisco 9 0 9
Santa Barbara 0 4 4
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 74 74
_______ ______ _____
60 188 248
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 3 13 172
2-4 a.m. 6 6 37
4-6 a.m. 0 0 0
6-8 a.m. 4 13 120
8-10 a.m. 28 53 429
10-12 a.m. 44 126 1,286
12-2 p.m. 47 167 1,841
2-4 p.m. 49 122 1,471
4-6 p.m. 30 83 449
6-8 p.m. 16 50 698
8-10 p.m. 15 62 817
10-12 p.m. 6 32 610
__________ __________ __________ _________________
Total: 248 727 7,930
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 19 181 200
Davis 45 1 46
Irvine 109 0 109
Los Angeles 5 55 60
Riverside 7 15 22
San Diego 7 27 34
San Francisco 48 0 48
Santa Barbara 0 11 11
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 6 6
Other-Network UC n/a 189 189
_______ ______ _____
241 486 727
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 86 2,022 2,108
Davis 139 0 139
Irvine 1,264 0 1,264
Los Angeles 49 485 534
Riverside 36 751 787
San Diego 0 214 214
San Francisco 404 0 404
Santa Barbara 0 249 249
Santa Cruz 22 0 22
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 96 96
Other-Network UC n/a 2,113 2,113
_______ ______ _____
2,000 5,930 7,930
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 0.7
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) 11:10
Average session length (minutes:seconds) 14:23
Longest session recorded (minutes:seconds) 158:48
Average number of searches completed per session 2.9
Retrievals per search - median 7.0
Retrievals per search - average 1198.3
Retrievals per search - standard deviation 15185
Percent of searches completed with 0 results 27.7%
Percent of searches entered that are long 3.0%
Percent of long searches completed
(includes partial results) 63.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 655 25.2%
DISPLAY (excluding automatic displays) 1,314 50.5%
BROWSE 2 0.1%
SELECT 0 0.0%
HELP 6 0.2%
EXPLAIN 12 0.5%
SET/RESET 111 4.3%
SHOW 4 0.2%
ADD ON (AND, OR, AND NOT) 72 2.8%
LOGON or LOGOFF 298 11.5%
COMMENT 0 0.0%
SAVE 46 1.8%
USE 0 0.0%
OTHER 82 3.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 146
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 21
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 195 27.7% 50 25.6% 9 75.3 352.0
TITLE WORD 142 20.2% 48 33.8% 11 67.0 173.2
EXACT TITLE 7 1.0% 5 71.4% 1 1.0 0.0
JOURNAL 57 8.1% 25 43.9% 1,314 6365.4 16575.9
EXACT JOURNAL 11 1.6% 6 54.5% 1,058 1218.6 826.4
SUBJECT 23 3.3% 7 30.4% 89 1105.4 2237.4
EXACT SUBJECT 3 0.4% 0 0.0% 106 199.0 256.5
KEYWORD 233 33.1% 57 24.5% 58 3426.5 29717.8
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 11 1.6% 4 36.4% 421 1091.1 1422.5
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 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 3 0.4% 1 33.3% 446 446.0 557.2
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 13 1.8% 2 15.4% 10 47.2 114.5
EXACT PE 6 0.9% 0 0.0% 5 9.5 10.0
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 0 0.0% 0 0.0% 0 0.0 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 56 8.6% 24 42.9% 7 257.1 771.1
Single 592 91.4% 157 26.5% 28 1933.3 19493.1
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 2 100% 1 50.0% 77 77.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.1%
SHORT 88.1%
LONG 0.5%
TAGS 0.0%
FIELDS 7.1%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.6%
COMMENTS 0.0%
Other 0.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 6.2%
Ten most frequent errors:
1. NS command - no next screen 37.4%
2. First word of command is invalid 31.6%
3. FIND command with invalid index name 6.4%
4. DISPLAY command contains invalid word 5.3%
5. DISPLAY command-record numbers too large 2.9%
6. Max. # of ports to a Z39 db are in use 2.9%
7. Valid command at an inappropriate time 2.3%
8. Command with odd number of double quotes 2.3%
9. DISPLAY command - no FIND results 1.2%
10. PS command - no previous screen 1.2%
11. All others 6.4%
Ten most frequent EXPLAIN requests:
1. ABI/INFORM DB 16.7%
2. INDEXES (ABI DB) 16.7%
3. GUIDE (ABI DB) 8.3%
4. FIND (ABI DB) 8.3%
5. B034 8.3%
6. PUBLICATION TYPES (ABI DB) 8.3%
7. DISPLAY (ABI DB) 8.3%
8. Unrecognized term 8.3%
9. 1213 8.3%
10. DATABASES 8.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 33.3%
2. NS command - no next screen 22.2%
3. First word of command is invalid 16.7%
4. FIND command with zero results 11.1%
5. DISPLAY command-first of >1 screen 11.1%
6. DISPLAY command-complete in one screen 5.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 50.0%
2. ABI NEWS 25.0%
3. ABI LOADING STATISTICS 25.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)