MELVYL ABI DATABASE TELNET STATISTICS
Time period: 10/01/99 through 10/31/99
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
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Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 97 711 808
Davis 192 1 193
Irvine 198 0 198
Los Angeles 27 390 417
Riverside 37 6 43
San Diego 23 52 75
San Francisco 95 2 97
Santa Barbara 53 35 88
Santa Cruz 120 31 151
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 12 12
Los Alamos 0 0 0
Other - UC 28 17 45
Other-Network UC n/a 386 386
_______ ______ _____
870 1,643 2,513
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 56 171 2,179
2-4 a.m. 14 65 1,224
4-6 a.m. 22 107 2,747
6-8 a.m. 25 66 1,255
8-10 a.m. 212 514 5,714
10-12 a.m. 452 1,355 21,145
12-2 p.m. 488 1,499 18,793
2-4 p.m. 497 1,479 22,492
4-6 p.m. 390 1,134 14,756
6-8 p.m. 181 568 8,566
8-10 p.m. 104 292 3,811
10-12 p.m. 72 324 4,334
__________ __________ __________ _________________
Total: 2,513 7,574 107,016
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 290 2,213 2,503
Davis 539 5 544
Irvine 554 0 554
Los Angeles 63 1,270 1,333
Riverside 144 32 176
San Diego 58 223 281
San Francisco 308 9 317
Santa Barbara 172 99 271
Santa Cruz 351 79 430
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 26 26
Los Alamos 0 0 0
Other - UC 68 48 116
Other-Network UC n/a 1,023 1,023
_______ ______ _____
2,547 5,027 7,574
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 4,726 26,318 31,044
Davis 5,443 17 5,460
Irvine 6,412 0 6,412
Los Angeles 510 22,167 22,677
Riverside 1,473 137 1,610
San Diego 587 2,186 2,773
San Francisco 4,645 3,885 8,530
Santa Barbara 1,938 1,585 3,523
Santa Cruz 4,022 1,016 5,038
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 559 559
Los Alamos 0 0 0
Other - UC 374 684 1,058
Other-Network UC n/a 18,332 18,332
_______ ______ _____
30,130 76,886 107,016
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.9
Standard deviation in seconds 2.0
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 8:41
Average session length (minutes:seconds) 13:04
Longest session recorded (minutes:seconds) 121:51
Average number of searches completed per session 3.0
Retrievals per search - median 8.0
Retrievals per search - average 1022.1
Retrievals per search - standard deviation 8739.5
Percent of searches completed with 0 results 27.5%
Percent of searches entered that are long 2.2%
Percent of long searches completed
(includes partial results) 57.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 6,826 25.2%
DISPLAY (excluding automatic displays) 11,997 44.3%
BROWSE 42 0.2%
SELECT 18 0.1%
HELP 542 2.0%
EXPLAIN 477 1.8%
SET/RESET 1,003 3.7%
SHOW 136 0.5%
ADD ON (AND, OR, AND NOT) 741 2.7%
LOGON or LOGOFF 3,234 11.9%
COMMENT 1 0.0%
SAVE 1,217 4.5%
USE 10 0.0%
OTHER 899 3.3%
2.1 Article Text
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DISPLAY TEXT commands 1,338
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 222
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 1,772 23.9% 476 26.9% 12 78.0 257.8
TITLE WORD 1,277 17.2% 470 36.8% 7 66.9 336.3
EXACT TITLE 120 1.6% 48 40.0% 1 50.5 96.6
JOURNAL 429 5.8% 143 33.3% 880 2644.1 5993.8
EXACT JOURNAL 205 2.8% 68 33.2% 840 4496.7 9538.4
SUBJECT 804 10.8% 462 57.5% 312 6581.4 27342.0
EXACT SUBJECT 49 0.7% 25 51.0% 828 3033.9 5622.9
KEYWORD 2,184 29.5% 295 13.5% 71 1776.0 11947.3
PUB TYPE 50 0.7% 3 6.0% 86 1532.3 5608.0
DATE 160 2.2% 44 27.5% 14 163.6 469.9
ADDED 11 0.1% 0 0.0% 12,196 10784.0 1959.1
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 1 0.0% 1 100% 0 0.0 0.0
GEOGRAPHIC NAME 4 0.1% 0 0.0% 36 6215.3 12371.2
SUBJ CATEGORY 1 0.0% 0 0.0% 48 48.0 0.0
COMPANY NAME 106 1.4% 44 41.5% 112 585.5 1140.1
EX COMPANY NAME 7 0.1% 2 28.6% 7 13.6 10.9
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 1 0.0% 1 100% 0 0.0 0.0
ID NUMBER 21 0.3% 18 85.7% 1 1.0 0.0
ISSN 1 0.0% 0 0.0% 358 358.0 0.0
PERIODICAL 110 1.5% 19 17.3% 6 167.1 642.9
EXACT PE 63 0.8% 8 12.7% 3 33.8 168.1
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 38 0.5% 3 7.9% 20 670.4 1742.4
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 643 9.5% 223 34.7% 8 156.9 618.0
Single 6,105 90.5% 1,668 27.3% 34 1665.4 11284.1
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 42 100% 25 59.5% 5 16.0 31.4
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.5%
SHORT 88.8%
LONG 1.4%
TAGS 0.0%
FIELDS 2.1%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 2.1%
COMMENTS 0.0%
Other 2.1%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.3%
Ten most frequent errors:
1. First word of command is invalid 31.9%
2. NS command - no next screen 28.1%
3. FIND command with invalid index name 10.6%
4. DISPLAY command contains invalid word 5.1%
5. PS command - no previous screen 3.8%
6. Search term missing from search command 2.0%
7. Valid command at an inappropriate time 1.6%
8. DISPLAY command-record numbers too large 1.6%
9. Add-on search, no index name after verb 1.5%
10. DISPLAY command - no FIND results 1.4%
11. All others 12.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.1%
2. FIND (ABI DB) 11.7%
3. LOCATE (ARTICLE DBS) 10.3%
4. INDEXES (ABI DB) 8.2%
5. COMMANDS (ABI/PSY DBS) 7.1%
6. Unrecognized term 6.5%
7. ABI/INFORM DB 5.0%
8. DISPLAY (ABI DB) 3.1%
9. ADDON SEARCH 3.1%
10. PUBLICATION TYPES (ABI DB) 2.9%
11. All others 21.8%
Ten most frequent HELP situations:
1. Help requested from SET DB command 25.2%
2. First word of command is invalid 16.2%
3. FIND command with invalid index name 9.1%
4. FIND command with zero results 6.2%
5. DISPLAY command-first of >1 screen 5.0%
6. DISPLAY command - middle of >1 screen 4.4%
7. FIND command retrieves >1 book 3.6%
8. DISPLAY command-complete in one screen 3.4%
9. NS command - no next screen 2.9%
10. 3 HELP commands issued from same code 2.2%
11. All others 21.7%
Ten most frequent SHOW requests:
1. HISTORY 43.7%
2. SEARCH 29.6%
3. MAIL STATUS 14.1%
4. GLOSSARY 4.4%
5. SETTINGS (ABI DB) 2.2%
6. MAIL SETTINGS 2.2%
7. ABI NEWS 1.5%
8. SYSTEM NEWS 1.5%
9. 0423 0.7%
11. All others 0.0%