MELVYL ABI DATABASE TELNET STATISTICS
Time period: 04/01/01 through 04/30/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 39 282 321
Davis 66 1 67
Irvine 94 0 94
Los Angeles 1 115 116
Riverside 19 14 33
San Diego 9 37 46
San Francisco 34 0 34
Santa Barbara 1 11 12
Santa Cruz 13 1 14
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 2 5 7
Other-Network UC n/a 215 215
_______ ______ _____
278 682 960
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 21 92 1,238
2-4 a.m. 12 28 282
4-6 a.m. 8 27 199
6-8 a.m. 20 51 1,055
8-10 a.m. 99 235 1,561
10-12 a.m. 145 395 3,704
12-2 p.m. 166 555 5,726
2-4 p.m. 198 643 8,219
4-6 p.m. 164 422 4,251
6-8 p.m. 60 181 2,390
8-10 p.m. 37 142 2,442
10-12 p.m. 30 88 1,758
__________ __________ __________ _________________
Total: 960 2,859 32,825
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 186 987 1,173
Davis 174 1 175
Irvine 240 0 240
Los Angeles 1 349 350
Riverside 25 47 72
San Diego 23 102 125
San Francisco 137 0 137
Santa Barbara 2 22 24
Santa Cruz 28 1 29
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 5 10 15
Other-Network UC n/a 518 518
_______ ______ _____
821 2,038 2,859
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,602 10,683 12,285
Davis 2,737 8 2,745
Irvine 2,196 0 2,196
Los Angeles 4 4,295 4,299
Riverside 186 1,125 1,311
San Diego 72 1,650 1,722
San Francisco 1,995 0 1,995
Santa Barbara 59 401 460
Santa Cruz 111 11 122
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 110 110
Los Alamos 0 0 0
Other - UC 67 110 177
Other-Network UC n/a 5,403 5,403
_______ ______ _____
9,029 23,796 32,825
1.4 Response time
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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) 10:07
Average session length (minutes:seconds) 12:53
Longest session recorded (minutes:seconds) 164:15
Average number of searches completed per session 2.9
Retrievals per search - median 6.0
Retrievals per search - average 1276.4
Retrievals per search - standard deviation 11032
Percent of searches completed with 0 results 28.4%
Percent of searches entered that are long 3.8%
Percent of long searches completed
(includes partial results) 63.9%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,588 27.8%
DISPLAY (excluding automatic displays) 3,875 41.6%
BROWSE 8 0.1%
SELECT 0 0.0%
HELP 156 1.7%
EXPLAIN 131 1.4%
SET/RESET 427 4.6%
SHOW 36 0.4%
ADD ON (AND, OR, AND NOT) 271 2.9%
LOGON or LOGOFF 1,194 12.8%
COMMENT 0 0.0%
SAVE 367 3.9%
USE 2 0.0%
OTHER 262 2.8%
2.1 Article Text
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DISPLAY TEXT commands 382
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 56
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 711 25.1% 195 27.4% 10 58.4 225.6
TITLE WORD 612 21.6% 206 33.7% 10 303.4 2482.2
EXACT TITLE 84 3.0% 53 63.1% 1 13.8 31.8
JOURNAL 112 4.0% 34 30.4% 112 1917.5 5882.8
EXACT JOURNAL 101 3.6% 40 39.6% 420 4365.6 10512.1
SUBJECT 251 8.9% 120 47.8% 178 9440.5 34671.1
EXACT SUBJECT 11 0.4% 4 36.4% 1,604 2782.3 3118.0
KEYWORD 691 24.4% 104 15.1% 53 2359.5 14732.1
PUB TYPE 6 0.2% 0 0.0% 142 1488.7 3360.3
DATE 94 3.3% 22 23.4% 6 324.6 1780.2
ADDED 2 0.1% 0 0.0% 13,494 13494.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 10 0.4% 2 20.0% 72 122.8 140.0
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 0.2% 2 28.6% 170 136.2 75.6
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 78 2.8% 15 19.2% 4 22.5 41.1
EXACT PE 37 1.3% 6 16.2% 3 7.8 10.3
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 26 0.9% 3 11.5% 79 1302.9 3846.9
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 275 10.8% 76 27.6% 7 499.3 3637.7
Single 2,276 89.2% 654 28.7% 24 1914.1 13639.5
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 5 62.5% 4 80.0% 1 1.0 0.0
EXACT SUBJECT 3 37.5% 3 100% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.8%
SHORT 86.7%
LONG 1.0%
TAGS 0.0%
FIELDS 4.4%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 3.6%
COMMENTS 0.0%
Other 1.5%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.6%
Ten most frequent errors:
1. First word of command is invalid 33.0%
2. NS command - no next screen 31.6%
3. FIND command with invalid index name 10.2%
4. DISPLAY command contains invalid word 3.9%
5. PS command - no previous screen 3.4%
6. DISPLAY command - no FIND results 2.3%
7. Search term missing from search command 1.9%
8. Valid command at an inappropriate time 1.6%
9. BROWSE command with invalid index name 1.1%
10. DISPLAY command-record numbers too large 1.0%
11. All others 9.9%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 23.7%
2. INDEXES (ABI DB) 11.5%
3. FIND (ABI DB) 11.5%
4. LOCATE (ARTICLE DBS) 11.5%
5. COMMANDS (ABI/PSY DBS) 6.1%
6. ABI/INFORM DB 4.6%
7. DISPLAY (ABI DB) 3.1%
8. ADDON SEARCH 3.1%
9. B034 2.3%
10. PUBLICATION TYPES (ABI DB) 2.3%
11. All others 20.6%
Ten most frequent HELP situations:
1. Help requested from SET DB command 30.7%
2. First word of command is invalid 13.6%
3. FIND command with zero results 12.2%
4. FIND command with invalid index name 8.7%
5. PS command - no previous screen 3.8%
6. DISPLAY command-complete in one screen 3.5%
7. DISPLAY command-first of >1 screen 3.5%
8. FIND command retrieves >1 book 3.1%
9. DISPLAY command - middle of >1 screen 2.8%
10. NS command - no next screen 2.4%
11. All others 15.7%
Ten most frequent SHOW requests:
1. HISTORY 60.7%
2. SEARCH 21.4%
3. ABI NEWS 3.6%
4. GLOSSARY 3.6%
5. GLOSSARY A 3.6%
6. MAIL STATUS 3.6%
7. DATABASES 3.6%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)