MELVYL ABI DATABASE TELNET STATISTICS
Time period: 02/01/00 through 02/29/00
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 65 462 527
Davis 194 3 197
Irvine 185 0 185
Los Angeles 37 248 285
Riverside 73 6 79
San Diego 45 57 102
San Francisco 58 0 58
Santa Barbara 35 62 97
Santa Cruz 82 7 89
Lawrence Berkeley 0 2 2
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 22 18 40
Other-Network UC n/a 343 343
_______ ______ _____
796 1,211 2,007
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 20 90 1,621
2-4 a.m. 17 71 1,574
4-6 a.m. 8 66 851
6-8 a.m. 42 143 3,355
8-10 a.m. 218 639 9,429
10-12 a.m. 356 1,083 13,194
12-2 p.m. 378 1,020 15,681
2-4 p.m. 419 1,262 19,009
4-6 p.m. 265 884 11,536
6-8 p.m. 117 373 6,192
8-10 p.m. 92 260 4,406
10-12 p.m. 75 208 2,946
__________ __________ __________ _________________
Total: 2,007 6,099 89,794
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 204 1,397 1,601
Davis 658 15 673
Irvine 591 0 591
Los Angeles 134 951 1,085
Riverside 145 18 163
San Diego 107 159 266
San Francisco 176 0 176
Santa Barbara 74 214 288
Santa Cruz 288 9 297
Lawrence Berkeley 0 5 5
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 48 57 105
Other-Network UC n/a 847 847
_______ ______ _____
2,425 3,674 6,099
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,199 22,780 24,979
Davis 6,206 522 6,728
Irvine 6,980 0 6,980
Los Angeles 3,197 16,842 20,039
Riverside 3,268 197 3,465
San Diego 623 1,611 2,234
San Francisco 2,736 0 2,736
Santa Barbara 1,010 3,751 4,761
Santa Cruz 3,012 148 3,160
Lawrence Berkeley 0 393 393
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 627 1,294 1,921
Other-Network UC n/a 12,396 12,396
_______ ______ _____
29,858 59,936 89,794
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.1
Standard deviation in seconds 2.9
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
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Median session length (minutes:seconds) 9:18
Average session length (minutes:seconds) 14:03
Longest session recorded (minutes:seconds) 294:43
Average number of searches completed per session 3.0
Retrievals per search - median 9.0
Retrievals per search - average 1365.7
Retrievals per search - standard deviation 10302
Percent of searches completed with 0 results 26.4%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 64.6%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 5,429 23.7%
DISPLAY (excluding automatic displays) 10,741 46.9%
BROWSE 24 0.1%
SELECT 6 0.0%
HELP 355 1.6%
EXPLAIN 444 1.9%
SET/RESET 849 3.7%
SHOW 112 0.5%
ADD ON (AND, OR, AND NOT) 668 2.9%
LOGON or LOGOFF 2,497 10.9%
COMMENT 0 0.0%
SAVE 1,004 4.4%
USE 9 0.0%
OTHER 792 3.5%
2.1 Article Text
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DISPLAY TEXT commands 1,124
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 187
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 1,386 23.1% 309 22.3% 11 68.4 253.7
TITLE WORD 1,108 18.4% 482 43.5% 7 192.4 2605.8
EXACT TITLE 74 1.2% 31 41.9% 1 22.9 74.4
JOURNAL 336 5.6% 107 31.8% 130 5229.5 17406.9
EXACT JOURNAL 195 3.2% 51 26.2% 1,143 3296.9 6588.1
SUBJECT 610 10.1% 328 53.8% 520 5292.4 15364.5
EXACT SUBJECT 79 1.3% 17 21.5% 187 9323.6 27122.3
KEYWORD 1,663 27.7% 207 12.4% 88 2926.4 17575.1
PUB TYPE 52 0.9% 1 1.9% 142 3187.2 20186.6
DATE 150 2.5% 46 30.7% 48 232.5 592.3
ADDED 8 0.1% 2 25.0% 7,956 7956.0 5270.2
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 3 0.0% 0 0.0% 902 902.0 0.0
GEOGRAPHIC NAME 37 0.6% 4 10.8% 34 585.7 3006.2
SUBJ CATEGORY 5 0.1% 1 20.0% 662 1243.5 1629.2
COMPANY NAME 85 1.4% 29 34.1% 40 208.7 451.2
EX COMPANY NAME 2 0.0% 2 100% 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 10 0.2% 3 30.0% 590 571.0 97.6
PERIODICAL 124 2.1% 15 12.1% 7 431.3 3767.6
EXACT PE 37 0.6% 2 5.4% 3 7.5 11.7
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 46 0.8% 5 10.9% 193 1767.2 4125.8
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 597 11.1% 164 27.5% 19 1152.2 10405.9
Single 4,787 88.9% 1,309 27.3% 37 2176.3 12987.7
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 23 95.8% 7 30.4% 2 8.8 11.0
EXACT SUBJECT 1 4.2% 0 0.0% 2 2.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 86.6%
LONG 0.8%
TAGS 0.0%
FIELDS 2.2%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 1.9%
COMMENTS 0.0%
Other 5.2%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.8%
Ten most frequent errors:
1. First word of command is invalid 31.4%
2. NS command - no next screen 30.3%
3. FIND command with invalid index name 8.8%
4. DISPLAY command contains invalid word 4.6%
5. PS command - no previous screen 4.3%
6. Valid command at an inappropriate time 2.6%
7. Search term missing from search command 1.5%
8. DISPLAY command-record numbers too large 1.2%
9. Add-on search, no index name after verb 1.2%
10. NS of SHOW/EXP command-no next screen 1.1%
11. All others 13.0%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 24.5%
2. LOCATE (ARTICLE DBS) 10.8%
3. FIND (ABI DB) 10.1%
4. ABI/INFORM DB 5.2%
5. INDEXES (ABI DB) 5.0%
6. MAIL 5.0%
7. COMMANDS (ABI/PSY DBS) 4.1%
8. Unrecognized term 3.2%
9. DATABASES 2.5%
10. PUBLICATION TYPES (ABI DB) 2.3%
11. All others 27.5%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.4%
2. First word of command is invalid 13.1%
3. FIND command with invalid index name 8.8%
4. DISPLAY command-first of >1 screen 6.5%
5. FIND command with zero results 6.0%
6. DISPLAY command - middle of >1 screen 6.0%
7. DISPLAY command-complete in one screen 4.9%
8. NS command - no next screen 2.6%
9. FIND command retrieves >1 book 2.6%
10. DISPLAY command - last of >1 screen 1.9%
11. All others 20.2%
Ten most frequent SHOW requests:
1. HISTORY 41.7%
2. SEARCH 29.6%
3. MAIL STATUS 18.5%
4. SETTINGS (ABI DB) 2.8%
5. GLOSSARY 2.8%
6. MAIL SETTINGS 2.8%
7. 0212 0.9%
8. SYSTEM NEWS 0.9%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)