MELVYL ABI DATABASE TELNET STATISTICS
Time period: 01/13/01 through 01/19/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 4 73 77
Davis 22 0 22
Irvine 21 0 21
Los Angeles 0 21 21
Riverside 3 2 5
San Diego 2 7 9
San Francisco 8 0 8
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 0 3 3
Other-Network UC n/a 61 61
_______ ______ _____
61 172 233
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 3 63
2-4 a.m. 2 9 194
4-6 a.m. 1 1 9
6-8 a.m. 6 20 271
8-10 a.m. 36 80 357
10-12 a.m. 60 111 1,225
12-2 p.m. 33 91 1,911
2-4 p.m. 42 148 1,786
4-6 p.m. 31 141 1,912
6-8 p.m. 12 60 1,098
8-10 p.m. 2 18 459
10-12 p.m. 7 34 673
__________ __________ __________ _________________
Total: 233 716 9,958
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 22 278 300
Davis 63 0 63
Irvine 73 0 73
Los Angeles 0 46 46
Riverside 18 5 23
San Diego 10 36 46
San Francisco 25 0 25
Santa Barbara 0 13 13
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 5 5
Other-Network UC n/a 121 121
_______ ______ _____
211 505 716
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 145 4,218 4,363
Davis 378 0 378
Irvine 750 0 750
Los Angeles 0 345 345
Riverside 89 76 165
San Diego 48 399 447
San Francisco 435 0 435
Santa Barbara 0 174 174
Santa Cruz 0 17 17
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 14 14
Other-Network UC n/a 2,870 2,870
_______ ______ _____
1,845 8,113 9,958
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 1.2
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) 11:35
Average session length (minutes:seconds) 16:40
Longest session recorded (minutes:seconds) 240:33
Average number of searches completed per session 3.1
Retrievals per search - median 6.0
Retrievals per search - average 670.3
Retrievals per search - standard deviation 6229.7
Percent of searches completed with 0 results 26.1%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 76.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 652 26.4%
DISPLAY (excluding automatic displays) 1,222 49.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 18 0.7%
EXPLAIN 16 0.6%
SET/RESET 106 4.3%
SHOW 15 0.6%
ADD ON (AND, OR, AND NOT) 64 2.6%
LOGON or LOGOFF 271 11.0%
COMMENT 0 0.0%
SAVE 47 1.9%
USE 0 0.0%
OTHER 61 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 139
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 183 25.1% 53 29.0% 7 58.0 242.1
TITLE WORD 156 21.4% 58 37.2% 7 138.5 963.1
EXACT TITLE 3 0.4% 1 33.3% 1 1.0 0.0
JOURNAL 24 3.3% 13 54.2% 854 829.5 921.8
EXACT JOURNAL 22 3.0% 9 40.9% 616 3571.5 9629.4
SUBJECT 25 3.4% 8 32.0% 132 2218.5 4893.3
EXACT SUBJECT 1 0.1% 0 0.0% 24 24.0 0.0
KEYWORD 228 31.2% 45 19.7% 28 1628.0 11696.7
PUB TYPE 2 0.3% 0 0.0% 94 93.5 88.4
DATE 15 2.1% 2 13.3% 11 77.8 171.7
ADDED 1 0.1% 0 0.0% 12,240 12240.0 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 13 1.8% 4 30.8% 10 258.0 494.2
EX COMPANY NAME 5 0.7% 2 40.0% 3 23.0 34.6
DUNS 1 0.1% 0 0.0% 1,388 1388.0 0.0
TICKER SYMBOL 1 0.1% 1 100% 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 34 4.7% 5 14.7% 13 134.8 243.1
EXACT PE 13 1.8% 5 38.5% 15 23.0 38.0
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 3 0.4% 0 0.0% 12,215 8431.0 6554.1
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 79 12.2% 29 36.7% 3 243.2 1342.3
Single 570 87.8% 147 25.8% 19 1027.1 8009.7
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 1.6%
SHORT 89.5%
LONG 0.4%
TAGS 0.0%
FIELDS 1.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 4.8%
COMMENTS 0.0%
Other 2.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.2%
Ten most frequent errors:
1. NS command - no next screen 29.9%
2. First word of command is invalid 25.5%
3. FIND command with invalid index name 12.4%
4. DISPLAY command contains invalid word 6.4%
5. PS command - no previous screen 5.6%
6. Valid command at an inappropriate time 3.2%
7. DISPLAY command-record numbers too large 2.0%
8. DISPLAY command - no FIND results 1.6%
9. 799 1.6%
10. Max. # of ports to a Z39 db are in use 1.6%
11. All others 10.4%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 25.0%
2. MAIL 25.0%
3. COMMANDS (ABI/PSY DBS) 12.5%
4. INDEXES (ABI DB) 6.3%
5. LOCATE (ARTICLE DBS) 6.3%
6. Unrecognized term 6.3%
7. 1050 6.3%
8. 1105 6.3%
9. PRINT 6.3%
11. All others 0.0%
Ten most frequent HELP situations:
1. FIND command with invalid index name 14.7%
2. DISPLAY command - last of >1 screen 14.7%
3. Help requested from SET DB command 14.7%
4. FIND command with zero results 8.8%
5. DISPLAY LIST - >1 screen 8.8%
6. NS command - no next screen 5.9%
7. DISPLAY command-first of >1 screen 5.9%
8. First word of command is invalid 2.9%
9. 104 2.9%
10. Help requested from SHOW SEARCH 2.9%
11. All others 17.6%
Ten most frequent SHOW requests:
1. HISTORY 71.4%
2. PUBLICATION TYPES (ABI DB) 7.1%
3. GLOSSARY 7.1%
4. SEARCH 7.1%
5. MAIL STATUS 7.1%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)