MELVYL ABI DATABASE TELNET STATISTICS
Time period: 09/01/00 through 09/30/00
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 43 302 345
Davis 60 0 60
Irvine 53 0 53
Los Angeles 10 182 192
Riverside 21 8 29
San Diego 12 50 62
San Francisco 26 0 26
Santa Barbara 14 20 34
Santa Cruz 17 8 25
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 2 22 24
Other-Network UC n/a 284 284
_______ ______ _____
258 878 1,136
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 24 115 5,990
2-4 a.m. 18 76 765
4-6 a.m. 8 50 602
6-8 a.m. 26 120 1,925
8-10 a.m. 120 345 3,027
10-12 a.m. 172 462 6,683
12-2 p.m. 207 615 8,751
2-4 p.m. 240 714 7,795
4-6 p.m. 167 540 6,865
6-8 p.m. 64 250 5,207
8-10 p.m. 50 178 2,585
10-12 p.m. 40 162 3,451
__________ __________ __________ _________________
Total: 1,136 3,627 53,646
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 199 940 1,139
Davis 152 0 152
Irvine 134 0 134
Los Angeles 17 668 685
Riverside 40 22 62
San Diego 94 186 280
San Francisco 124 0 124
Santa Barbara 22 69 91
Santa Cruz 40 21 61
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 5 70 75
Other-Network UC n/a 821 821
_______ ______ _____
827 2,800 3,627
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,629 17,041 18,670
Davis 2,382 0 2,382
Irvine 2,326 0 2,326
Los Angeles 602 10,892 11,494
Riverside 227 111 338
San Diego 409 1,579 1,988
San Francisco 1,829 0 1,829
Santa Barbara 99 1,081 1,180
Santa Cruz 512 269 781
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 27 27
Los Alamos 0 0 0
Other - UC 21 440 461
Other-Network UC n/a 12,170 12,170
_______ ______ _____
10,036 43,610 53,646
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 1.3
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
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Median session length (minutes:seconds) 9:03
Average session length (minutes:seconds) 13:49
Longest session recorded (minutes:seconds) 359:34
Average number of searches completed per session 3.2
Retrievals per search - median 9.0
Retrievals per search - average 2476.4
Retrievals per search - standard deviation 26832
Percent of searches completed with 0 results 24.2%
Percent of searches entered that are long 3.3%
Percent of long searches completed
(includes partial results) 76.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,170 24.8%
DISPLAY (excluding automatic displays) 6,186 48.3%
BROWSE 27 0.2%
SELECT 2 0.0%
HELP 124 1.0%
EXPLAIN 156 1.2%
SET/RESET 522 4.1%
SHOW 79 0.6%
ADD ON (AND, OR, AND NOT) 456 3.6%
LOGON or LOGOFF 1,367 10.7%
COMMENT 0 0.0%
SAVE 357 2.8%
USE 6 0.0%
OTHER 378 3.0%
2.1 Article Text
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DISPLAY TEXT commands 579
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 95
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 1,016 28.8% 250 24.6% 12 63.1 265.1
TITLE WORD 619 17.6% 228 36.8% 8 594.0 5379.0
EXACT TITLE 27 0.8% 16 59.3% 3 3.4 3.0
JOURNAL 204 5.8% 56 27.4% 100 2162.5 6349.3
EXACT JOURNAL 88 2.5% 25 28.4% 148 2554.8 8202.4
SUBJECT 340 9.7% 127 37.4% 858 7515.9 19516.0
EXACT SUBJECT 31 0.9% 5 16.1% 132 3139.8 8507.8
KEYWORD 861 24.4% 118 13.7% 61 4142.4 33918.5
PUB TYPE 31 0.9% 5 16.1% 132 275.1 320.9
DATE 92 2.6% 12 13.0% 17 225.7 650.2
ADDED 4 0.1% 1 25.0% 11,154 11154.0 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 5 0.1% 2 40.0% 58,136 52215.0 48350.2
COMPANY NAME 24 0.7% 8 33.3% 25 335.9 1106.1
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 3 0.1% 0 0.0% 6 6.0 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 118 3.3% 23 19.5% 5 42.2 240.0
EXACT PE 26 0.7% 2 7.7% 10 23.1 56.8
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 34 1.0% 4 11.8% 871 4936.4 7034.6
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 368 11.7% 92 25.0% 12 838.6 6278.7
Single 2,776 88.3% 696 25.1% 25 2611.7 21523.5
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 26 96.3% 4 15.4% 7 14.0 17.4
EXACT SUBJECT 1 3.7% 1 100% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 4.4%
SHORT 84.6%
LONG 1.0%
TAGS 0.0%
FIELDS 2.5%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 4.6%
COMMENTS 0.0%
Other 2.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 7.8%
Ten most frequent errors:
1. NS command - no next screen 32.7%
2. First word of command is invalid 24.8%
3. FIND command with invalid index name 7.6%
4. DISPLAY command contains invalid word 6.9%
5. PS command - no previous screen 3.6%
6. Valid command at an inappropriate time 1.9%
7. DISPLAY command - no FIND results 1.8%
8. Add-on search, no index name after verb 1.3%
9. DISPLAY command-record numbers too large 1.2%
10. Search term missing from search command 1.1%
11. All others 17.0%
Ten most frequent EXPLAIN requests:
1. INDEXES (ABI DB) 17.9%
2. GUIDE (ABI DB) 12.2%
3. MAIL 11.5%
4. FIND (ABI DB) 10.9%
5. LOCATE (ARTICLE DBS) 6.4%
6. COMMANDS (ABI/PSY DBS) 5.1%
7. ABI/INFORM DB 4.5%
8. ADDON SEARCH 4.5%
9. DISPLAY (ABI DB) 3.2%
10. PUBLICATION TYPES (ABI DB) 2.6%
11. All others 21.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 21.8%
2. DISPLAY command-first of >1 screen 9.3%
3. First word of command is invalid 8.6%
4. FIND command with zero results 8.2%
5. FIND command retrieves >1 book 7.9%
6. FIND command with invalid index name 6.1%
7. DISPLAY command - middle of >1 screen 5.7%
8. PS command - no previous screen 3.2%
9. DISPLAY command-complete in one screen 3.2%
10. DISPLAY command - last of >1 screen 2.5%
11. All others 23.6%
Ten most frequent SHOW requests:
1. HISTORY 65.5%
2. SEARCH 10.3%
3. SETTINGS (ABI DB) 5.2%
4. MAIL SETTINGS 5.2%
5. PUBLICATION TYPES (ABI DB) 1.7%
6. SC LIST (ABI DB) 1.7%
7. ABI NEWS 1.7%
8. GLOSSARY 1.7%
9. SYSTEM NEWS 1.7%
10. USE SYSTEMS 1.7%
11. All others 3.4%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)