MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/06/02 through 04/12/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 46 51
Davis 1 0 1
Irvine 11 0 11
Los Angeles 0 18 18
Riverside 1 0 1
San Diego 1 4 5
San Francisco 1 0 1
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 1 2 3
Other-Network UC n/a 31 31
_______ ______ _____
21 101 122
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 56 5
2-4 a.m. 1 5 205
4-6 a.m. 0 0 0
6-8 a.m. 0 0 0
8-10 a.m. 21 42 235
10-12 a.m. 21 77 787
12-2 p.m. 24 39 463
2-4 p.m. 15 35 374
4-6 p.m. 15 43 781
6-8 p.m. 4 6 17
8-10 p.m. 4 19 202
10-12 p.m. 16 49 195
__________ __________ __________ _________________
Total: 122 371 3,264
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 11 181 192
Davis 1 0 1
Irvine 21 0 21
Los Angeles 0 58 58
Riverside 3 0 3
San Diego 1 25 26
San Francisco 2 0 2
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 4 1 5
Other-Network UC n/a 63 63
_______ ______ _____
43 328 371
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 43 1,105 1,148
Davis 29 0 29
Irvine 232 0 232
Los Angeles 0 770 770
Riverside 14 0 14
San Diego 0 400 400
San Francisco 74 0 74
Santa Barbara 0 0 0
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 8 5 13
Other-Network UC n/a 584 584
_______ ______ _____
400 2,864 3,264
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 1.1
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
_________________________________________
Median session length (minutes:seconds) 8:09
Average session length (minutes:seconds) 11:20
Longest session recorded (minutes:seconds) 95:37
Average number of searches completed per session 3.0
Retrievals per search - median 5.0
Retrievals per search - average 5476.0
Retrievals per search - standard deviation 35375
Percent of searches completed with 0 results 35.0%
Percent of searches entered that are long 1.9%
Percent of long searches completed
(includes partial results) 85.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 317 28.7%
DISPLAY (excluding automatic displays) 453 41.0%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 12 1.1%
EXPLAIN 20 1.8%
SET/RESET 49 4.4%
SHOW 6 0.5%
ADD ON (AND, OR, AND NOT) 54 4.9%
LOGON or LOGOFF 153 13.8%
COMMENT 0 0.0%
SAVE 9 0.8%
USE 3 0.3%
OTHER 29 2.6%
2.1 Article Text
_________________
DISPLAY TEXT commands 44
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 8
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 125 30.0% 81 64.8% 10 27.7 43.8
TITLE WORD 53 12.7% 13 24.5% 6 40.8 125.0
EXACT TITLE 4 1.0% 2 50.0% 5 5.0 2.8
JOURNAL 19 4.6% 6 31.6% 612 1890.4 4006.7
EXACT JOURNAL 21 5.0% 4 19.0% 776 4068.2 9485.1
SUBJECT 20 4.8% 3 15.0% 978 96610.5 134094
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 71 17.1% 5 7.0% 53 4246.6 18421.5
PUB TYPE 1 0.2% 0 0.0% 9 9.0 0.0
DATE 4 1.0% 0 0.0% 104 281.3 417.1
ADDED 72 17.3% 72 100% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 1 0.2% 0 0.0% 13 13.0 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 4 1.0% 0 0.0% 5 88.8 169.5
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 18 4.3% 1 5.6% 6 23.7 38.0
EXACT PE 0 0.0% 0 0.0% 0 0.0 0.0
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 0.7% 1 33.3% 868 867.5 1161.8
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 98 31.1% 73 74.5% 48 468.1 893.2
Single 217 68.9% 42 19.4% 16 11415.7 50782.6
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 0.6%
SHORT 91.1%
LONG 0.8%
TAGS 0.0%
FIELDS 1.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 5.8%
COMMENTS 0.0%
Other 0.8%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 12.4%
Ten most frequent errors:
1. DISPLAY command - no FIND results 45.9%
2. First word of command is invalid 19.7%
3. NS command - no next screen 15.9%
4. DISPLAY command contains invalid word 3.8%
5. PS command - no previous screen 3.2%
6. SHOW command contains invalid word 1.3%
7. FIND command with invalid index name 1.3%
8. Search term missing from search command 1.3%
9. Index invalid in current database 1.3%
10. SET DB command entered w/o modifier 0.6%
11. All others 5.7%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 20.0%
2. LOCATE (ARTICLE DBS) 20.0%
3. GUIDE (ABI DB) 10.0%
4. COMMANDS (ABI/PSY DBS) 5.0%
5. B035 5.0%
6. DISPLAY (ABI DB) 5.0%
7. B145 5.0%
8. B154 5.0%
9. 1242 5.0%
10. DATABASES 5.0%
11. All others 15.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 21.9%
2. First word of command is invalid 18.8%
3. FIND command retrieves >1 book 12.5%
4. SHOW command with invalid modifier 6.3%
5. DISPLAY command-first of >1 screen 6.3%
6. DISPLAY command - middle of >1 screen 6.3%
7. PE search with zero results 6.3%
8. SET DB command entered w/o modifier 3.1%
9. NS command - no next screen 3.1%
10. Add-on without index name after verb 3.1%
11. All others 12.5%
Ten most frequent SHOW requests:
1. SEARCH 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)