MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/01/02 through 06/30/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 8 145 153
Davis 37 0 37
Irvine 28 0 28
Los Angeles 0 58 58
Riverside 0 1 1
San Diego 7 17 24
San Francisco 13 0 13
Santa Barbara 1 0 1
Santa Cruz 0 1 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 7 7
Other-Network UC n/a 94 94
_______ ______ _____
94 323 417
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 14 46 1,142
2-4 a.m. 9 21 583
4-6 a.m. 4 10 56
6-8 a.m. 8 21 110
8-10 a.m. 50 108 1,056
10-12 a.m. 73 213 2,554
12-2 p.m. 71 220 2,413
2-4 p.m. 73 225 2,248
4-6 p.m. 49 102 2,045
6-8 p.m. 12 31 707
8-10 p.m. 10 40 550
10-12 p.m. 44 395 583
__________ __________ __________ _________________
Total: 417 1,432 14,047
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 19 704 723
Davis 120 0 120
Irvine 62 0 62
Los Angeles 0 156 156
Riverside 0 0 0
San Diego 25 67 92
San Francisco 46 0 46
Santa Barbara 2 0 2
Santa Cruz 2 1 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 12 12
Other-Network UC n/a 216 216
_______ ______ _____
276 1,156 1,432
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 124 4,093 4,217
Davis 1,553 0 1,553
Irvine 554 0 554
Los Angeles 0 1,846 1,846
Riverside 0 0 0
San Diego 556 435 991
San Francisco 187 0 187
Santa Barbara 0 0 0
Santa Cruz 3 3 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 0 0
Los Alamos 0 0 0
Other - UC 0 467 467
Other-Network UC n/a 4,226 4,226
_______ ______ _____
2,977 11,070 14,047
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 0.1
2.0 ABI Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 8:08
Average session length (minutes:seconds) 15:04
Longest session recorded (minutes:seconds) 408:19
Average number of searches completed per session 3.4
Retrievals per search - median 1.0
Retrievals per search - average 803.4
Retrievals per search - standard deviation 6746.0
Percent of searches completed with 0 results 42.7%
Percent of searches entered that are long 2.4%
Percent of long searches completed
(includes partial results) 88.2%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1,271 30.1%
DISPLAY (excluding automatic displays) 1,687 40.0%
BROWSE 2 0.0%
SELECT 0 0.0%
HELP 51 1.2%
EXPLAIN 44 1.0%
SET/RESET 179 4.2%
SHOW 25 0.6%
ADD ON (AND, OR, AND NOT) 161 3.8%
LOGON or LOGOFF 552 13.1%
COMMENT 0 0.0%
SAVE 138 3.3%
USE 1 0.0%
OTHER 113 2.7%
2.1 Article Text
_________________
DISPLAY TEXT commands 122
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 13
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 632 36.6% 407 64.4% 9 59.0 322.6
TITLE WORD 190 11.0% 74 38.9% 5 1070.6 10667.5
EXACT TITLE 29 1.7% 11 37.9% 1 1.9 2.7
JOURNAL 41 2.4% 11 26.8% 260 2540.0 5335.2
EXACT JOURNAL 33 1.9% 8 24.2% 8 22.2 38.7
SUBJECT 81 4.7% 30 37.0% 86 7218.7 23262.1
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
KEYWORD 280 16.2% 48 17.1% 86 2736.1 11980.8
PUB TYPE 9 0.5% 0 0.0% 86 575.8 958.0
DATE 20 1.2% 3 15.0% 30 117.1 217.8
ADDED 348 20.2% 341 98.0% 1 1.0 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 31 1.8% 4 12.9% 58 935.3 2010.2
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 2 0.1% 1 50.0% 2,224 2224.0 0.0
PERIODICAL 16 0.9% 1 6.3% 8 35.3 68.9
EXACT PE 13 0.8% 0 0.0% 7 121.2 290.7
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 454 35.8% 359 79.1% 12 1321.4 11787.0
Single 813 64.2% 219 26.9% 25 1688.2 9262.2
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 2 100% 1 50.0% 2 2.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.4%
SHORT 89.7%
LONG 1.6%
TAGS 0.0%
FIELDS 2.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.1%
COMMENTS 0.0%
Other 1.8%
2.2 Error, EXPLAIN and HELP statistics
_______________________________________
Percent of commands that contained errors 14.7%
Ten most frequent errors:
1. DISPLAY command - no FIND results 47.8%
2. NS command - no next screen 21.3%
3. First word of command is invalid 15.4%
4. FIND command with invalid index name 4.3%
5. DISPLAY command contains invalid word 2.1%
6. PS command - no previous screen 1.2%
7. Valid command at an inappropriate time 1.0%
8. DISPLAY command-record numbers too large 1.0%
9. Add-on search, no index name after verb 0.8%
10. Search term missing from search command 0.7%
11. All others 4.4%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 15.9%
2. B034 13.6%
3. ADDON SEARCH 11.4%
4. ABI/INFORM DB 9.1%
5. FIND (ABI DB) 9.1%
6. INDEXES (ABI DB) 6.8%
7. LOCATE (ARTICLE DBS) 6.8%
8. COMMANDS (ABI/PSY DBS) 4.5%
9. B035 2.3%
10. SUBJECT INDEX (ABI DB) 2.3%
11. All others 18.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 28.4%
2. First word of command is invalid 11.6%
3. FIND command retrieves >1 book 10.5%
4. DISPLAY command-first of >1 screen 10.5%
5. FIND command with invalid index name 5.3%
6. PS command - no previous screen 4.2%
7. DISPLAY command-complete in one screen 4.2%
8. DISPLAY command - last of >1 screen 4.2%
9. NS command - no next screen 3.2%
10. FIND command with zero results 3.2%
11. All others 14.7%
Ten most frequent SHOW requests:
1. HISTORY 70.8%
2. SEARCH 20.8%
3. SETTINGS (ABI DB) 4.2%
4. FIND DISPLAY 4.2%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)