MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/27/01 through 11/02/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 5 43 48
Davis 17 0 17
Irvine 16 0 16
Los Angeles 0 18 18
Riverside 3 0 3
San Diego 0 5 5
San Francisco 4 0 4
Santa Barbara 1 0 1
Santa Cruz 0 0 0
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 58 58
_______ ______ _____
46 126 172
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 4 10 118
2-4 a.m. 0 0 0
4-6 a.m. 2 4 0
6-8 a.m. 6 20 100
8-10 a.m. 19 33 332
10-12 a.m. 23 59 251
12-2 p.m. 31 99 1,373
2-4 p.m. 34 84 1,432
4-6 p.m. 27 55 224
6-8 p.m. 10 25 328
8-10 p.m. 10 18 227
10-12 p.m. 6 22 843
__________ __________ __________ _________________
Total: 172 429 5,228
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 19 106 125
Davis 55 0 55
Irvine 62 0 62
Los Angeles 0 36 36
Riverside 3 0 3
San Diego 0 10 10
San Francisco 18 0 18
Santa Barbara 5 0 5
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 112 112
_______ ______ _____
162 267 429
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 25 1,408 1,433
Davis 307 0 307
Irvine 230 0 230
Los Angeles 0 909 909
Riverside 0 0 0
San Diego 0 129 129
San Francisco 360 0 360
Santa Barbara 69 0 69
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 11 11
Los Alamos 0 0 0
Other - UC 0 0 0
Other-Network UC n/a 1,780 1,780
_______ ______ _____
991 4,237 5,228
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
Standard deviation in seconds 2.0
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) 7:02
Average session length (minutes:seconds) 12:39
Longest session recorded (minutes:seconds) 146:58
Average number of searches completed per session 2.5
Retrievals per search - median 3.5
Retrievals per search - average 800.8
Retrievals per search - standard deviation 8675.2
Percent of searches completed with 0 results 33.3%
Percent of searches entered that are long 4.2%
Percent of long searches completed
(includes partial results) 83.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 370 25.3%
DISPLAY (excluding automatic displays) 682 46.7%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 18 1.2%
EXPLAIN 10 0.7%
SET/RESET 92 6.3%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 59 4.0%
LOGON or LOGOFF 177 12.1%
COMMENT 0 0.0%
SAVE 12 0.8%
USE 0 0.0%
OTHER 41 2.8%
2.1 Article Text
_________________
DISPLAY TEXT commands 52
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 15
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 92 22.3% 30 32.6% 9 52.6 185.3
TITLE WORD 118 28.6% 47 39.8% 4 43.7 109.0
EXACT TITLE 11 2.7% 5 45.5% 7 11.7 12.4
JOURNAL 12 2.9% 5 41.7% 890 3913.1 5399.5
EXACT JOURNAL 26 6.3% 6 23.1% 464 1692.1 3035.4
SUBJECT 38 9.2% 20 52.6% 126 3116.9 9575.0
EXACT SUBJECT 6 1.5% 5 83.3% 8 8.0 0.0
KEYWORD 81 19.7% 15 18.5% 93 3194.3 21240.8
PUB TYPE 2 0.5% 0 0.0% 7 6.5 2.1
DATE 10 2.4% 1 10.0% 110 115.7 75.9
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 5 1.2% 1 20.0% 20 483.5 939.7
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 3 0.7% 1 33.3% 12 11.5 13.4
EXACT PE 3 0.7% 0 0.0% 16 17.0 16.5
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 5 1.2% 3 60.0% 86,310 86309.5 121861
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 43 11.7% 16 37.2% 8 6430.6 33185.0
Single 324 88.3% 107 33.0% 21 750.7 3321.7
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 5.7%
SHORT 88.4%
LONG 1.2%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.0%
COMMENTS 0.0%
Other 1.9%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 8.7%
Ten most frequent errors:
1. First word of command is invalid 31.7%
2. NS command - no next screen 30.9%
3. FIND command with invalid index name 8.6%
4. DISPLAY command contains invalid word 7.9%
5. DISPLAY command-record numbers too large 3.6%
6. DISPLAY command - no FIND results 2.2%
7. Search term missing from search command 2.2%
8. Valid command at an inappropriate time 1.4%
9. DATE search with unrecognized word 1.4%
10. Index invalid in current database 1.4%
11. All others 8.6%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 40.0%
2. COMMANDS (ABI/PSY DBS) 20.0%
3. FIND (ABI DB) 10.0%
4. DISPLAY (ABI DB) 10.0%
5. 1086 10.0%
6. 3080 10.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 42.9%
2. First word of command is invalid 14.3%
3. FIND command with zero results 14.3%
4. FIND command with invalid index name 10.7%
5. NS command - no next screen 7.1%
6. 3 HELP commands issued from same code 3.6%
7. DISPLAY command-first of >1 screen 3.6%
8. 754 3.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. 0.0%
2. 0.0%
3. 0.0%
4. 0.0%
5. 0.0%
6. 0.0%
7. 0.0%
8. 0.0%
9. 0.0%
10. 0.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)