MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/07/01 through 04/13/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 14 63 77
Davis 15 0 15
Irvine 43 0 43
Los Angeles 0 31 31
Riverside 5 6 11
San Diego 0 7 7
San Francisco 8 0 8
Santa Barbara 1 4 5
Santa Cruz 3 0 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 54 54
_______ ______ _____
89 167 256
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 9 25 367
2-4 a.m. 6 12 174
4-6 a.m. 3 6 17
6-8 a.m. 7 9 280
8-10 a.m. 23 67 408
10-12 a.m. 42 109 834
12-2 p.m. 32 145 1,251
2-4 p.m. 68 220 3,116
4-6 p.m. 33 86 588
6-8 p.m. 20 56 1,135
8-10 p.m. 4 16 855
10-12 p.m. 9 15 176
__________ __________ __________ _________________
Total: 256 766 9,201
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 93 178 271
Davis 40 0 40
Irvine 130 0 130
Los Angeles 0 56 56
Riverside 11 28 39
San Diego 0 9 9
San Francisco 30 0 30
Santa Barbara 1 11 12
Santa Cruz 5 0 5
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 6 6
Other-Network UC n/a 168 168
_______ ______ _____
310 456 766
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 774 1,639 2,413
Davis 200 0 200
Irvine 1,358 0 1,358
Los Angeles 0 542 542
Riverside 60 799 859
San Diego 0 207 207
San Francisco 1,178 0 1,178
Santa Barbara 52 60 112
Santa Cruz 18 0 18
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 62 62
Other-Network UC n/a 2,252 2,252
_______ ______ _____
3,640 5,561 9,201
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.0
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) 11:18
Average session length (minutes:seconds) 14:45
Longest session recorded (minutes:seconds) 164:15
Average number of searches completed per session 3.0
Retrievals per search - median 6.0
Retrievals per search - average 871.7
Retrievals per search - standard deviation 9425.1
Percent of searches completed with 0 results 25.6%
Percent of searches entered that are long 1.7%
Percent of long searches completed
(includes partial results) 53.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 699 27.4%
DISPLAY (excluding automatic displays) 1,166 45.7%
BROWSE 1 0.0%
SELECT 0 0.0%
HELP 33 1.3%
EXPLAIN 32 1.3%
SET/RESET 104 4.1%
SHOW 15 0.6%
ADD ON (AND, OR, AND NOT) 67 2.6%
LOGON or LOGOFF 319 12.5%
COMMENT 0 0.0%
SAVE 61 2.4%
USE 0 0.0%
OTHER 55 2.2%
2.1 Article Text
_________________
DISPLAY TEXT commands 75
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 10
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 201 27.3% 43 21.4% 14 73.5 219.1
TITLE WORD 138 18.7% 52 37.7% 10 134.7 373.5
EXACT TITLE 25 3.4% 12 48.0% 1 1.5 1.2
JOURNAL 12 1.6% 6 50.0% 147 808.7 1656.9
EXACT JOURNAL 31 4.2% 11 35.5% 911 8319.8 15384.0
SUBJECT 37 5.0% 17 45.9% 130 13564.2 54409.0
EXACT SUBJECT 3 0.4% 2 66.7% 131 131.0 0.0
KEYWORD 197 26.7% 32 16.2% 39 649.4 2343.2
PUB TYPE 2 0.3% 0 0.0% 4,309 4308.5 5708.5
DATE 11 1.5% 2 18.2% 5 12.0 15.7
ADDED 2 0.3% 0 0.0% 13,494 13494.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 2 0.3% 2 100% 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 2 0.3% 2 100% 0 0.0 0.0
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 47 6.4% 9 19.1% 4 24.7 45.1
EXACT PE 22 3.0% 5 22.7% 4 6.8 6.9
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 5 0.7% 0 0.0% 851 5592.2 7205.8
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 44 6.3% 14 31.8% 5 306.0 1519.6
Single 649 93.6% 167 25.7% 18 1285.1 11774.0
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 1 100% 1 100% 0.0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 79.4%
LONG 0.5%
TAGS 0.0%
FIELDS 7.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 7.1%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.0%
Ten most frequent errors:
1. NS command - no next screen 33.3%
2. First word of command is invalid 28.8%
3. FIND command with invalid index name 7.7%
4. DISPLAY command contains invalid word 4.5%
5. PS command - no previous screen 4.1%
6. Search term missing from search command 2.7%
7. DISPLAY command-record numbers too large 2.3%
8. BROWSE command with invalid index name 1.8%
9. DISPLAY command - no FIND results 1.4%
10. NS of SHOW/EXP command-no next screen 1.4%
11. All others 12.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 25.0%
2. LOCATE (ARTICLE DBS) 12.5%
3. INDEXES (ABI DB) 9.4%
4. FIND (ABI DB) 9.4%
5. ABI/INFORM DB 6.3%
6. COMMANDS (ABI/PSY DBS) 6.3%
7. DISPLAY (ABI DB) 6.3%
8. SUBJECT INDEX (ABI DB) 3.1%
9. PUBLICATION TYPES (ABI DB) 3.1%
10. B053 3.1%
11. All others 15.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 32.3%
2. First word of command is invalid 15.4%
3. NS command - no next screen 7.7%
4. FIND command with zero results 7.7%
5. DISPLAY command-complete in one screen 7.7%
6. PS command - no previous screen 4.6%
7. FIND command with invalid index name 4.6%
8. FIND command retrieves 1 book 3.1%
9. 931 3.1%
10. DISPLAY command - no FIND results 1.5%
11. All others 12.3%
Ten most frequent SHOW requests:
1. HISTORY 69.2%
2. SEARCH 23.1%
3. ABI NEWS 7.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)