MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/01/01 through 09/07/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 76 81
Davis 16 0 16
Irvine 6 0 6
Los Angeles 0 19 19
Riverside 1 0 1
San Diego 1 8 9
San Francisco 4 0 4
Santa Barbara 1 2 3
Santa Cruz 0 1 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 60 60
_______ ______ _____
34 166 200
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 4 22
2-4 a.m. 1 13 56
4-6 a.m. 0 0 0
6-8 a.m. 5 24 182
8-10 a.m. 25 65 529
10-12 a.m. 45 104 951
12-2 p.m. 29 96 1,697
2-4 p.m. 37 109 1,634
4-6 p.m. 15 55 1,154
6-8 p.m. 20 27 314
8-10 p.m. 21 23 1,343
10-12 p.m. 0 0 0
__________ __________ __________ _________________
Total: 200 520 7,882
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 11 155 166
Davis 49 0 49
Irvine 16 0 16
Los Angeles 0 73 73
Riverside 0 0 0
San Diego 11 39 50
San Francisco 9 0 9
Santa Barbara 1 4 5
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 0 1
Other-Network UC n/a 150 150
_______ ______ _____
98 422 520
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 107 3,589 3,696
Davis 379 0 379
Irvine 187 0 187
Los Angeles 0 2,421 2,421
Riverside 0 0 0
San Diego 5 375 380
San Francisco 117 0 117
Santa Barbara 3 17 20
Santa Cruz 0 20 20
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 662 662
_______ ______ _____
798 7,084 7,882
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.3
Standard deviation in seconds 0.5
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) 3:22
Average session length (minutes:seconds) 11:41
Longest session recorded (minutes:seconds) 118:42
Average number of searches completed per session 2.6
Retrievals per search - median 7.0
Retrievals per search - average 952.1
Retrievals per search - standard deviation 9633.9
Percent of searches completed with 0 results 27.0%
Percent of searches entered that are long 2.7%
Percent of long searches completed
(includes partial results) 92.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 476 29.0%
DISPLAY (excluding automatic displays) 607 37.0%
BROWSE 2 0.1%
SELECT 1 0.1%
HELP 8 0.5%
EXPLAIN 6 0.4%
SET/RESET 85 5.2%
SHOW 3 0.2%
ADD ON (AND, OR, AND NOT) 44 2.7%
LOGON or LOGOFF 245 14.9%
COMMENT 0 0.0%
SAVE 105 6.4%
USE 0 0.0%
OTHER 60 3.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 60
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 1
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 141 26.8% 41 29.1% 21 42.4 98.1
TITLE WORD 120 22.8% 53 44.2% 11 4608.3 26044.3
EXACT TITLE 4 0.8% 3 75.0% 28 28.0 0.0
JOURNAL 40 7.6% 12 30.0% 146 504.3 654.6
EXACT JOURNAL 13 2.5% 6 46.2% 1,781 7433.1 14464.7
SUBJECT 24 4.6% 8 33.3% 3,691 22355.3 50757.3
EXACT SUBJECT 5 0.9% 1 20.0% 337 715.3 975.1
KEYWORD 115 21.8% 11 9.6% 35 505.3 1399.0
PUB TYPE 5 0.9% 0 0.0% 948 61008.6 83035.0
DATE 10 1.9% 3 30.0% 1,781 1042.9 922.4
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 10 1.9% 5 50.0% 220 377.4 404.6
EX COMPANY NAME 1 0.2% 1 100% 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 27 5.1% 4 14.8% 2 33.7 97.1
EXACT PE 12 2.3% 0 0.0% 2 10.8 17.4
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 48 10.1% 17 35.4% 21 10127.4 37869.9
Single 427 89.9% 113 26.5% 26 559.1 2673.4
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% 6 6.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 1.5%
SHORT 86.6%
LONG 2.0%
TAGS 0.0%
FIELDS 2.9%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 6.5%
COMMENTS 0.0%
Other 0.5%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.6%
Ten most frequent errors:
1. NS command - no next screen 25.8%
2. FIND command with invalid index name 21.3%
3. First word of command is invalid 18.7%
4. DISPLAY command - no FIND results 18.1%
5. PS command - no previous screen 5.8%
6. Max. # of ports to a Z39 db are in use 3.2%
7. DISPLAY command contains invalid word 1.9%
8. Valid command at an inappropriate time 1.3%
9. Search term missing from search command 1.3%
10. 414 0.6%
11. All others 1.9%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 50.0%
2. FIND (ABI DB) 16.7%
3. PUBLICATION TYPES (ABI DB) 16.7%
4. LOCATE (ARTICLE DBS) 16.7%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with zero results 28.6%
2. First word of command is invalid 14.3%
3. FIND command with invalid index name 14.3%
4. Valid command at an inappropriate time 7.1%
5. NS command - no next screen 7.1%
6. DISPLAY command-complete in one screen 7.1%
7. BROWSE command with zero results 7.1%
8. F/BR with index invalid in current DB 7.1%
9. NS of SHOW/EXP command-no next screen 7.1%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)