MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/26/01 through 06/01/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 58 59
Davis 18 0 18
Irvine 18 0 18
Los Angeles 0 15 15
Riverside 15 0 15
San Diego 0 4 4
San Francisco 3 0 3
Santa Barbara 7 12 19
Santa Cruz 2 0 2
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 37 37
_______ ______ _____
68 126 194
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 6 24 146
2-4 a.m. 4 20 38
4-6 a.m. 5 19 50
6-8 a.m. 3 9 181
8-10 a.m. 15 33 272
10-12 a.m. 32 120 1,480
12-2 p.m. 38 76 448
2-4 p.m. 38 90 1,623
4-6 p.m. 24 72 1,312
6-8 p.m. 12 37 745
8-10 p.m. 6 14 217
10-12 p.m. 11 58 643
__________ __________ __________ _________________
Total: 194 572 7,155
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 1 160 161
Davis 49 0 49
Irvine 124 0 124
Los Angeles 0 33 33
Riverside 26 0 26
San Diego 0 8 8
San Francisco 9 0 9
Santa Barbara 11 32 43
Santa Cruz 6 0 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 6 0 6
Other-Network UC n/a 107 107
_______ ______ _____
232 340 572
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 1,216 1,216
Davis 332 0 332
Irvine 1,740 0 1,740
Los Angeles 0 2,120 2,120
Riverside 168 0 168
San Diego 0 32 32
San Francisco 53 0 53
Santa Barbara 15 434 449
Santa Cruz 119 0 119
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 3 0 3
Other-Network UC n/a 923 923
_______ ______ _____
2,430 4,725 7,155
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 1.3
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) 9:16
Average session length (minutes:seconds) 16:13
Longest session recorded (minutes:seconds) 247:05
Average number of searches completed per session 2.9
Retrievals per search - median 10.0
Retrievals per search - average 833.5
Retrievals per search - standard deviation 7052.5
Percent of searches completed with 0 results 27.6%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 66.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 521 25.8%
DISPLAY (excluding automatic displays) 948 46.9%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 17 0.8%
EXPLAIN 33 1.6%
SET/RESET 81 4.0%
SHOW 5 0.2%
ADD ON (AND, OR, AND NOT) 51 2.5%
LOGON or LOGOFF 235 11.6%
COMMENT 0 0.0%
SAVE 82 4.1%
USE 0 0.0%
OTHER 50 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 34
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 5
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 149 26.5% 34 22.8% 13 78.0 253.0
TITLE WORD 99 17.6% 48 48.5% 10 41.8 89.8
EXACT TITLE 19 3.4% 15 78.9% 6 9.0 10.6
JOURNAL 18 3.2% 8 44.4% 5,021 7961.3 9994.9
EXACT JOURNAL 26 4.6% 8 30.8% 1,036 3742.3 5571.7
SUBJECT 18 3.2% 14 77.8% 246 1870.0 3341.3
EXACT SUBJECT 2 0.4% 0 0.0% 2,964 2964.0 1387.3
KEYWORD 169 30.1% 24 14.2% 98 1941.3 13265.3
PUB TYPE 4 0.7% 1 25.0% 219 219.0 0.0
DATE 11 2.0% 3 27.3% 194 217.4 220.0
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 7 1.2% 5 71.4% 388 387.5 545.2
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 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 25 4.4% 4 16.0% 6 61.0 93.8
EXACT PE 14 2.5% 0 0.0% 3 49.3 99.2
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 1 0.2% 0 0.0% 447 447.0 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 43 8.3% 20 46.5% 21 114.4 162.1
Single 474 91.7% 123 25.9% 35 1290.3 8894.6
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 1.8%
SHORT 90.1%
LONG 0.9%
TAGS 0.0%
FIELDS 2.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 4.1%
COMMENTS 0.0%
Other 0.7%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 8.0%
Ten most frequent errors:
1. NS command - no next screen 40.1%
2. First word of command is invalid 30.5%
3. FIND command with invalid index name 11.3%
4. DISPLAY command-record numbers too large 2.3%
5. DISPLAY command contains invalid word 2.3%
6. Search term missing from search command 2.3%
7. Command contains escape or arrow key 1.7%
8. Valid command at an inappropriate time 1.1%
9. DISPLAY command - no FIND results 1.1%
10. Range of record numbers invalid 0.6%
11. All others 6.8%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 36.4%
2. FIND (ABI DB) 12.1%
3. COMMANDS (ABI/PSY DBS) 9.1%
4. Unrecognized term 9.1%
5. ABI/INFORM DB 6.1%
6. INDEXES (ABI DB) 6.1%
7. MAIL 6.1%
8. B034 3.0%
9. B042 3.0%
10. DATE (ABI DB) 3.0%
11. All others 6.1%
Ten most frequent HELP situations:
1. Help requested from SET DB command 34.0%
2. First word of command is invalid 16.0%
3. FIND command with zero results 12.0%
4. FIND command with invalid index name 8.0%
5. DISPLAY command-first of >1 screen 6.0%
6. NS command - no next screen 4.0%
7. FIND command retrieves >1 book 4.0%
8. 285 4.0%
9. 868 4.0%
10. F/BR command with invalid search term 2.0%
11. All others 6.0%
Ten most frequent SHOW requests:
1. HISTORY 60.0%
2. SETTINGS (ABI DB) 20.0%
3. SEARCH 20.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)