MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/14/01 through 04/20/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 11 73 84
Davis 13 1 14
Irvine 18 0 18
Los Angeles 1 27 28
Riverside 4 2 6
San Diego 2 4 6
San Francisco 8 0 8
Santa Barbara 0 2 2
Santa Cruz 2 1 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 2 0 2
Other-Network UC n/a 56 56
_______ ______ _____
61 166 227
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 28 292
2-4 a.m. 2 2 4
4-6 a.m. 1 1 0
6-8 a.m. 3 14 265
8-10 a.m. 25 58 319
10-12 a.m. 36 104 904
12-2 p.m. 40 118 754
2-4 p.m. 47 131 1,360
4-6 p.m. 37 105 1,365
6-8 p.m. 13 61 850
8-10 p.m. 6 23 103
10-12 p.m. 9 16 90
__________ __________ __________ _________________
Total: 227 661 6,306
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 25 277 302
Davis 32 1 33
Irvine 40 0 40
Los Angeles 1 80 81
Riverside 3 4 7
San Diego 2 10 12
San Francisco 28 0 28
Santa Barbara 0 2 2
Santa Cruz 8 1 9
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 4 0 4
Other-Network UC n/a 143 143
_______ ______ _____
143 518 661
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 233 2,570 2,803
Davis 267 8 275
Irvine 239 0 239
Los Angeles 4 1,017 1,021
Riverside 1 40 41
San Diego 2 226 228
San Francisco 141 0 141
Santa Barbara 0 165 165
Santa Cruz 27 11 38
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 66 0 66
Other-Network UC n/a 1,289 1,289
_______ ______ _____
980 5,326 6,306
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 1.4
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) 10:22
Average session length (minutes:seconds) 13:51
Longest session recorded (minutes:seconds) 98:10
Average number of searches completed per session 2.9
Retrievals per search - median 3.0
Retrievals per search - average 1179.4
Retrievals per search - standard deviation 9588.1
Percent of searches completed with 0 results 35.6%
Percent of searches entered that are long 4.7%
Percent of long searches completed
(includes partial results) 71.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 593 28.8%
DISPLAY (excluding automatic displays) 855 41.5%
BROWSE 4 0.2%
SELECT 0 0.0%
HELP 34 1.7%
EXPLAIN 35 1.7%
SET/RESET 140 6.8%
SHOW 1 0.0%
ADD ON (AND, OR, AND NOT) 68 3.3%
LOGON or LOGOFF 249 12.1%
COMMENT 0 0.0%
SAVE 19 0.9%
USE 1 0.0%
OTHER 64 3.1%
2.1 Article Text
_________________
DISPLAY TEXT commands 117
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 20
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 169 25.0% 60 35.5% 7 61.3 277.7
TITLE WORD 159 23.6% 59 37.1% 10 93.3 312.6
EXACT TITLE 19 2.8% 15 78.9% 1 3.8 5.5
JOURNAL 30 4.4% 13 43.3% 469 3096.5 9289.4
EXACT JOURNAL 46 6.8% 18 39.1% 321 2035.1 4250.6
SUBJECT 64 9.5% 33 51.6% 147 885.8 1140.2
EXACT SUBJECT 2 0.3% 1 50.0% 1,604 1604.0 0.0
KEYWORD 125 18.5% 27 21.6% 69 6186.3 23739.6
PUB TYPE 2 0.3% 0 0.0% 90 89.5 84.1
DATE 44 6.5% 8 18.2% 17 524.7 2438.1
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 0 0.0% 0 0.0% 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 5 0.7% 1 20.0% 8 10.0 10.8
EXACT PE 5 0.7% 1 20.0% 2 3.8 4.9
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% 79 56.8 30.7
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 89 15.2% 25 28.1% 7 305.6 1834.6
Single 496 84.8% 186 37.5% 24 2391.1 13778.0
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 3 75.0% 2 66.7% 1 1.0 0.0
EXACT SUBJECT 1 25.0% 1 100% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.7%
SHORT 90.6%
LONG 2.2%
TAGS 0.0%
FIELDS 1.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.1%
COMMENTS 0.0%
Other 0.9%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.6%
Ten most frequent errors:
1. First word of command is invalid 44.7%
2. NS command - no next screen 24.7%
3. FIND command with invalid index name 7.3%
4. DISPLAY command - no FIND results 3.7%
5. DISPLAY command contains invalid word 3.2%
6. PS command - no previous screen 3.2%
7. Search term missing from search command 1.8%
8. NS of SHOW/EXP command-no next screen 1.8%
9. Add-on search, no index name after verb 1.4%
10. BROWSE command with invalid index name 1.4%
11. All others 6.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 31.4%
2. LOCATE (ARTICLE DBS) 17.1%
3. INDEXES (ABI DB) 14.3%
4. ADDON SEARCH 8.6%
5. LOCATIONS 5.7%
6. Unrecognized term 5.7%
7. ABI/INFORM DB 2.9%
8. FIND (ABI DB) 2.9%
9. COMMANDS (ABI/PSY DBS) 2.9%
10. DATE (ABI DB) 2.9%
11. All others 5.7%
Ten most frequent HELP situations:
1. Help requested from SET DB command 29.0%
2. First word of command is invalid 20.3%
3. FIND command with zero results 8.7%
4. FIND command retrieves >1 book 8.7%
5. FIND command with invalid index name 4.3%
6. DISPLAY command-first of >1 screen 4.3%
7. PS command - no previous screen 2.9%
8. F/BR command with invalid search term 2.9%
9. Add-on without index name after verb 2.9%
10. FIND command retrieves 1 book 2.9%
11. All others 13.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)