MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/06/01 through 10/12/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 2 51 53
Davis 18 0 18
Irvine 17 0 17
Los Angeles 0 18 18
Riverside 3 1 4
San Diego 5 2 7
San Francisco 2 0 2
Santa Barbara 3 2 5
Santa Cruz 2 2 4
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 50 50
_______ ______ _____
52 128 180
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 25 253
2-4 a.m. 1 1 3
4-6 a.m. 0 0 0
6-8 a.m. 4 11 123
8-10 a.m. 22 48 168
10-12 a.m. 43 149 1,465
12-2 p.m. 35 94 1,165
2-4 p.m. 29 96 782
4-6 p.m. 21 42 348
6-8 p.m. 4 14 121
8-10 p.m. 8 11 81
10-12 p.m. 7 27 589
__________ __________ __________ _________________
Total: 180 518 5,098
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 10 205 215
Davis 74 0 74
Irvine 44 0 44
Los Angeles 0 45 45
Riverside 7 0 7
San Diego 12 2 14
San Francisco 4 0 4
Santa Barbara 9 3 12
Santa Cruz 0 2 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 96 96
_______ ______ _____
160 358 518
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 54 2,993 3,047
Davis 317 0 317
Irvine 346 0 346
Los Angeles 0 352 352
Riverside 13 0 13
San Diego 17 28 45
San Francisco 39 0 39
Santa Barbara 89 16 105
Santa Cruz 0 4 4
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 80 80
Los Alamos 0 0 0
Other - UC 0 10 10
Other-Network UC n/a 740 740
_______ ______ _____
875 4,223 5,098
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
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) 10:38
Average session length (minutes:seconds) 11:47
Longest session recorded (minutes:seconds) 56:58
Average number of searches completed per session 2.9
Retrievals per search - median 6.0
Retrievals per search - average 1546.1
Retrievals per search - standard deviation 14270
Percent of searches completed with 0 results 25.9%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 90.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 464 30.7%
DISPLAY (excluding automatic displays) 580 38.4%
BROWSE 2 0.1%
SELECT 1 0.1%
HELP 24 1.6%
EXPLAIN 19 1.3%
SET/RESET 81 5.4%
SHOW 10 0.7%
ADD ON (AND, OR, AND NOT) 54 3.6%
LOGON or LOGOFF 213 14.1%
COMMENT 0 0.0%
SAVE 18 1.2%
USE 1 0.1%
OTHER 45 3.0%
2.1 Article Text
_________________
DISPLAY TEXT commands 29
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 2
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 112 22.4% 16 14.3% 14 40.8 90.0
TITLE WORD 102 20.4% 50 49.0% 4 18.1 36.8
EXACT TITLE 7 1.4% 2 28.6% 1 1.2 0.4
JOURNAL 19 3.8% 5 26.3% 1,661 2496.2 3027.2
EXACT JOURNAL 7 1.4% 3 42.9% 199 246.5 222.7
SUBJECT 33 6.6% 16 48.5% 114 16950.6 61393.8
EXACT SUBJECT 1 0.2% 0 0.0% 111 111.0 0.0
KEYWORD 145 28.9% 28 19.3% 63 3781.4 18308.1
PUB TYPE 5 1.0% 2 40.0% 8 32.0 44.2
DATE 14 2.8% 1 7.1% 9 211.9 627.0
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 3 0.6% 1 33.3% 805 804.5 1122.2
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 1 0.2% 1 100% 0 0.0 0.0
PERIODICAL 42 8.4% 4 9.5% 4 19.9 45.6
EXACT PE 10 2.0% 0 0.0% 16 21.8 21.2
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 37 8.0% 6 16.2% 6 122.2 422.9
Single 426 92.0% 116 27.2% 20 2481.8 18349.5
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
EXACT SUBJECT 2 100% 0 0.0% 11 11.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.0%
SHORT 83.4%
LONG 0.7%
TAGS 0.0%
FIELDS 2.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 8.8%
COMMENTS 0.0%
Other 1.1%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 9.6%
Ten most frequent errors:
1. NS command - no next screen 38.1%
2. First word of command is invalid 24.4%
3. FIND command with invalid index name 11.9%
4. Search term missing from search command 3.1%
5. DISPLAY command-record numbers too large 2.5%
6. DISPLAY command contains invalid word 2.5%
7. Max. # of ports to a Z39 db are in use 2.5%
8. PS command - no previous screen 1.3%
9. Add-on search, no index name after verb 1.3%
10. BROWSE command with invalid index name 1.3%
11. All others 11.3%
Ten most frequent EXPLAIN requests:
1. LOCATE (ARTICLE DBS) 21.1%
2. GUIDE (ABI DB) 15.8%
3. INDEXES (ABI DB) 10.5%
4. FIND (ABI DB) 10.5%
5. MAGS TEXT 5.3%
6. COMMANDS (ABI/PSY DBS) 5.3%
7. PUBLICATION TYPES (ABI DB) 5.3%
8. DISPLAY (ABI DB) 5.3%
9. B098 5.3%
10. MAIL 5.3%
11. All others 10.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.3%
2. First word of command is invalid 18.6%
3. DISPLAY command-first of >1 screen 14.0%
4. DISPLAY command contains invalid word 9.3%
5. FIND command with invalid index name 4.7%
6. BROWSE command with invalid index name 4.7%
7. FIND command retrieves >1 book 4.7%
8. DISPLAY command - middle of >1 screen 4.7%
9. 15 2.3%
10. Help requested from SHOW SEARCH 2.3%
11. All others 11.6%
Ten most frequent SHOW requests:
1. HISTORY 60.0%
2. SEARCH 20.0%
3. SETTINGS (ABI DB) 10.0%
4. GLOSSARY 10.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)