MELVYL ABI DATABASE TELNET STATISTICS
Time period: 02/17/01 through 02/23/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 72 79
Davis 16 0 16
Irvine 13 0 13
Los Angeles 0 24 24
Riverside 8 2 10
San Diego 2 6 8
San Francisco 20 0 20
Santa Barbara 2 5 7
Santa Cruz 0 0 0
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 80 80
_______ ______ _____
68 189 257
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 2 5 64
2-4 a.m. 1 2 0
4-6 a.m. 7 41 493
6-8 a.m. 6 19 221
8-10 a.m. 25 77 1,547
10-12 a.m. 56 201 6,047
12-2 p.m. 37 97 733
2-4 p.m. 58 168 2,051
4-6 p.m. 38 108 829
6-8 p.m. 14 51 885
8-10 p.m. 11 48 618
10-12 p.m. 2 3 12
__________ __________ __________ _________________
Total: 257 820 13,500
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 10 220 230
Davis 30 0 30
Irvine 31 0 31
Los Angeles 0 135 135
Riverside 18 3 21
San Diego 21 27 48
San Francisco 69 0 69
Santa Barbara 4 12 16
Santa Cruz 0 0 0
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 240 240
_______ ______ _____
183 637 820
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 144 7,007 7,151
Davis 238 0 238
Irvine 403 0 403
Los Angeles 0 1,824 1,824
Riverside 200 28 228
San Diego 117 300 417
San Francisco 679 0 679
Santa Barbara 19 257 276
Santa Cruz 0 0 0
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 2,284 2,284
_______ ______ _____
1,800 11,700 13,500
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 0.8
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) 12:03
Average session length (minutes:seconds) 15:33
Longest session recorded (minutes:seconds) 207:22
Average number of searches completed per session 3.2
Retrievals per search - median 3.0
Retrievals per search - average 595.1
Retrievals per search - standard deviation 3698.3
Percent of searches completed with 0 results 26.6%
Percent of searches entered that are long 2.0%
Percent of long searches completed
(includes partial results) 87.5%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 745 28.3%
DISPLAY (excluding automatic displays) 990 37.7%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 35 1.3%
EXPLAIN 30 1.1%
SET/RESET 118 4.5%
SHOW 7 0.3%
ADD ON (AND, OR, AND NOT) 75 2.9%
LOGON or LOGOFF 302 11.5%
COMMENT 0 0.0%
SAVE 258 9.8%
USE 2 0.1%
OTHER 67 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 112
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 32
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 162 18.6% 40 24.7% 8 41.7 131.9
TITLE WORD 200 23.0% 79 39.5% 3 343.0 2013.1
EXACT TITLE 42 4.8% 9 21.4% 1 3.1 8.7
JOURNAL 76 8.7% 19 25.0% 22 594.6 2130.2
EXACT JOURNAL 15 1.7% 6 40.0% 712 3491.6 8048.9
SUBJECT 39 4.5% 20 51.3% 2,821 7717.5 15337.8
EXACT SUBJECT 2 0.2% 1 50.0% 22 22.0 0.0
KEYWORD 229 26.3% 43 18.8% 58 1272.0 4915.9
PUB TYPE 5 0.6% 0 0.0% 844 573.6 521.5
DATE 12 1.4% 2 16.7% 28 28.7 24.6
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 5 0.6% 2 40.0% 182 134.0 101.0
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 4 0.5% 0 0.0% 26 276.3 517.3
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 46 5.3% 9 19.6% 5 10.6 16.7
EXACT PE 26 3.0% 0 0.0% 4 21.1 85.9
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 7 0.8% 1 14.3% 2,095 2291.7 2037.4
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 126 17.0% 34 27.0% 18 333.9 1241.4
Single 617 83.0% 163 26.4% 11 997.8 4893.2
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 1.8%
SHORT 83.1%
LONG 0.7%
TAGS 0.0%
FIELDS 1.7%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 10.3%
COMMENTS 0.0%
Other 2.3%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.9%
Ten most frequent errors:
1. NS command - no next screen 28.2%
2. First word of command is invalid 26.4%
3. FIND command with invalid index name 9.7%
4. DISPLAY command contains invalid word 6.2%
5. Valid command at an inappropriate time 5.3%
6. PS command - no previous screen 4.4%
7. Index invalid in current database 2.6%
8. Search term missing from search command 1.8%
9. Max. # of ports to a Z39 db are in use 1.8%
10. SAVE command issued w/o record numbers 1.3%
11. All others 12.3%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.0%
2. FIND (ABI DB) 16.7%
3. LOCATE (ARTICLE DBS) 10.0%
4. COMMANDS (ABI/PSY DBS) 6.7%
5. MAIL 6.7%
6. HELP 6.7%
7. FULL TEXT 3.3%
8. ABI/INFORM DB 3.3%
9. INDEXES (ABI DB) 3.3%
10. PUBLICATION TYPES (ABI DB) 3.3%
11. All others 20.0%
Ten most frequent HELP situations:
1. FIND command with invalid index name 20.0%
2. Help requested from SET DB command 20.0%
3. First word of command is invalid 10.8%
4. FIND command with zero results 9.2%
5. DISPLAY command-first of >1 screen 7.7%
6. Valid command at an inappropriate time 4.6%
7. FIND command retrieves >1 book 4.6%
8. F/BR with index invalid in current DB 4.6%
9. DISPLAY command - middle of >1 screen 3.1%
10. DISPLAY command - last of >1 screen 3.1%
11. All others 12.3%
Ten most frequent SHOW requests:
1. HISTORY 66.7%
2. SEARCH 33.3%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)