MELVYL ABI DATABASE TELNET STATISTICS
Time period: 12/16/00 through 12/22/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 7 58 65
Davis 12 3 15
Irvine 15 0 15
Los Angeles 2 18 20
Riverside 1 0 1
San Diego 0 16 16
San Francisco 7 0 7
Santa Barbara 1 3 4
Santa Cruz 1 2 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 1 1 2
Other-Network UC n/a 43 43
_______ ______ _____
47 145 192
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 1 4 212
2-4 a.m. 3 15 192
4-6 a.m. 6 41 544
6-8 a.m. 3 6 12
8-10 a.m. 21 61 208
10-12 a.m. 40 110 2,153
12-2 p.m. 38 77 2,421
2-4 p.m. 36 117 2,663
4-6 p.m. 22 69 453
6-8 p.m. 4 10 40
8-10 p.m. 9 35 468
10-12 p.m. 9 47 715
__________ __________ __________ _________________
Total: 192 592 10,081
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 40 169 209
Davis 54 4 58
Irvine 36 0 36
Los Angeles 3 49 52
Riverside 2 0 2
San Diego 0 54 54
San Francisco 14 0 14
Santa Barbara 0 14 14
Santa Cruz 1 1 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 6 6
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 142 142
_______ ______ _____
150 442 592
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 291 2,679 2,970
Davis 126 50 176
Irvine 888 0 888
Los Angeles 6 446 452
Riverside 7 0 7
San Diego 0 1,061 1,061
San Francisco 635 0 635
Santa Barbara 0 192 192
Santa Cruz 31 1 32
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 309 309
Los Alamos 0 0 0
Other - UC 0 3 3
Other-Network UC n/a 3,356 3,356
_______ ______ _____
1,984 8,097 10,081
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 0.2
2.0 ABI Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 11:18
Average session length (minutes:seconds) 28:11
Longest session recorded (minutes:seconds) 1133
Average number of searches completed per session 3.1
Retrievals per search - median 9.0
Retrievals per search - average 1245.5
Retrievals per search - standard deviation 10027
Percent of searches completed with 0 results 22.9%
Percent of searches entered that are long 2.9%
Percent of long searches completed
(includes partial results) 82.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 498 23.0%
DISPLAY (excluding automatic displays) 1,008 46.5%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 8 0.4%
EXPLAIN 17 0.8%
SET/RESET 99 4.6%
SHOW 14 0.6%
ADD ON (AND, OR, AND NOT) 94 4.3%
LOGON or LOGOFF 225 10.4%
COMMENT 0 0.0%
SAVE 137 6.3%
USE 1 0.0%
OTHER 65 3.0%
2.1 Article Text
_________________
DISPLAY TEXT commands 59
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 12
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 190 33.8% 55 28.9% 9 64.0 178.2
TITLE WORD 112 19.9% 51 45.5% 2 113.9 549.7
EXACT TITLE 0 0.0% 0 0.0% 0 0.0 0.0
JOURNAL 22 3.9% 10 45.5% 474 1146.5 1249.0
EXACT JOURNAL 21 3.7% 5 23.8% 389 5604.4 12844.1
SUBJECT 33 5.9% 5 15.2% 156 5120.8 17655.1
EXACT SUBJECT 23 4.1% 7 30.4% 971 6297.2 14465.0
KEYWORD 83 14.8% 6 7.2% 103 3587.0 23635.9
PUB TYPE 0 0.0% 0 0.0% 0 0.0 0.0
DATE 18 3.2% 6 33.3% 20 51.6 68.4
ADDED 2 0.4% 0 0.0% 9,707 9707.0 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 19 3.4% 1 5.3% 87 524.4 627.0
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 19 3.4% 3 15.8% 8 39.3 67.8
EXACT PE 4 0.7% 1 25.0% 4 3.7 2.5
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 16 2.8% 2 12.5% 11 1522.4 3468.9
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 63 12.7% 27 42.9% 6 51.0 131.6
Single 433 87.3% 98 22.6% 36 2050.2 13221.4
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 5.9%
SHORT 84.4%
LONG 0.3%
TAGS 0.0%
FIELDS 4.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.7%
COMMENTS 0.0%
Other 2.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 6.9%
Ten most frequent errors:
1. NS command - no next screen 42.2%
2. First word of command is invalid 26.1%
3. DISPLAY command contains invalid word 9.3%
4. FIND command with invalid index name 4.3%
5. Command contains escape or arrow key 2.5%
6. DISPLAY command-record numbers too large 1.9%
7. PS command - no previous screen 1.2%
8. Max. # of ports to a Z39 db are in use 1.2%
9. Valid command at an inappropriate time 0.6%
10. DISPLAY command - no FIND results 0.6%
11. All others 9.9%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 35.3%
2. GUIDE (ABI DB) 29.4%
3. ABI/INFORM DB 11.8%
4. FIND (ABI DB) 11.8%
5. DISPLAY (ABI DB) 5.9%
6. 1286 5.9%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 52.0%
2. First word of command is invalid 12.0%
3. FIND command with invalid index name 12.0%
4. DISPLAY command - last of >1 screen 8.0%
5. 104 4.0%
6. FIND command with zero results 4.0%
7. FIND command retrieves >1 book 4.0%
8. 515 4.0%
11. All others 0.0%
Ten most frequent SHOW requests:
1. HISTORY 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)