MELVYL ABI DATABASE TELNET STATISTICS
Time period: 08/01/00 through 08/31/00
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 28 342 370
Davis 74 2 76
Irvine 108 0 108
Los Angeles 10 162 172
Riverside 44 0 44
San Diego 18 58 76
San Francisco 29 0 29
Santa Barbara 11 42 53
Santa Cruz 7 4 11
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 4 4
Los Alamos 0 0 0
Other - UC 8 14 22
Other-Network UC n/a 193 193
_______ ______ _____
337 821 1,158
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 11 66 510
2-4 a.m. 15 48 321
4-6 a.m. 6 48 394
6-8 a.m. 19 77 771
8-10 a.m. 146 420 5,058
10-12 a.m. 205 686 8,519
12-2 p.m. 181 514 6,451
2-4 p.m. 261 903 12,269
4-6 p.m. 173 554 6,944
6-8 p.m. 54 170 2,742
8-10 p.m. 47 238 2,342
10-12 p.m. 40 281 3,851
__________ __________ __________ _________________
Total: 1,158 4,005 50,172
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 103 1,323 1,426
Davis 212 4 216
Irvine 383 0 383
Los Angeles 32 504 536
Riverside 141 0 141
San Diego 103 127 230
San Francisco 95 0 95
Santa Barbara 26 138 164
Santa Cruz 33 6 39
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 9 9
Los Alamos 0 0 0
Other - UC 11 45 56
Other-Network UC n/a 710 710
_______ ______ _____
1,139 2,866 4,005
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 872 16,185 17,057
Davis 2,963 261 3,224
Irvine 3,689 0 3,689
Los Angeles 265 5,755 6,020
Riverside 3,688 0 3,688
San Diego 544 1,493 2,037
San Francisco 1,042 0 1,042
Santa Barbara 277 1,677 1,954
Santa Cruz 238 39 277
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 58 58
Los Alamos 0 0 0
Other - UC 31 379 410
Other-Network UC n/a 10,716 10,716
_______ ______ _____
13,609 36,563 50,172
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.1
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 9:28
Average session length (minutes:seconds) 14:27
Longest session recorded (minutes:seconds) 253:02
Average number of searches completed per session 3.4
Retrievals per search - median 6.0
Retrievals per search - average 753.4
Retrievals per search - standard deviation 6062.1
Percent of searches completed with 0 results 29.1%
Percent of searches entered that are long 2.9%
Percent of long searches completed
(includes partial results) 60.3%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,610 27.4%
DISPLAY (excluding automatic displays) 6,316 47.9%
BROWSE 28 0.2%
SELECT 2 0.0%
HELP 142 1.1%
EXPLAIN 121 0.9%
SET/RESET 461 3.5%
SHOW 33 0.3%
ADD ON (AND, OR, AND NOT) 395 3.0%
LOGON or LOGOFF 1,510 11.4%
COMMENT 0 0.0%
SAVE 252 1.9%
USE 3 0.0%
OTHER 355 2.7%
2.1 Article Text
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DISPLAY TEXT commands 752
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 1,095 27.7% 266 24.3% 11 57.1 228.1
TITLE WORD 769 19.5% 311 40.4% 9 113.2 905.8
EXACT TITLE 41 1.0% 16 39.0% 2 91.9 174.7
JOURNAL 211 5.3% 72 34.1% 102 2038.9 11599.4
EXACT JOURNAL 158 4.0% 50 31.6% 1,133 2567.6 3921.3
SUBJECT 237 6.0% 138 58.2% 954 11188.6 28256.9
EXACT SUBJECT 33 0.8% 19 57.6% 536 6053.6 18264.2
KEYWORD 1,107 28.1% 216 19.5% 45 1188.5 6699.6
PUB TYPE 21 0.5% 0 0.0% 126 388.7 832.9
DATE 96 2.4% 16 16.7% 30 129.1 370.4
ADDED 8 0.2% 0 0.0% 8,731 8098.9 2669.6
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 1 0.0% 0 0.0% 10 10.0 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 42 1.1% 33 78.6% 8 1805.6 5372.8
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 1 0.0% 1 100% 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 93 2.4% 21 22.6% 3 80.2 471.2
EXACT PE 13 0.3% 2 15.4% 5 4.8 3.9
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 20 0.5% 4 20.0% 97 2562.9 3691.9
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 369 10.4% 105 28.5% 17 647.7 7010.5
Single 3,195 89.6% 950 29.7% 24 1210.5 7624.6
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 28 100% 13 46.4% 2 5.9 9.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.9%
SHORT 90.9%
LONG 0.9%
TAGS 0.0%
FIELDS 1.4%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 2.4%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.1%
Ten most frequent errors:
1. NS command - no next screen 34.0%
2. First word of command is invalid 29.1%
3. FIND command with invalid index name 8.4%
4. DISPLAY command contains invalid word 4.9%
5. PS command - no previous screen 4.3%
6. DISPLAY command-record numbers too large 1.7%
7. Search term missing from search command 1.4%
8. Valid command at an inappropriate time 1.1%
9. DISPLAY command - no FIND results 1.1%
10. Add-on search, no index name after verb 0.9%
11. All others 13.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 24.8%
2. FIND (ABI DB) 13.2%
3. INDEXES (ABI DB) 9.9%
4. LOCATE (ARTICLE DBS) 8.3%
5. COMMANDS (ABI/PSY DBS) 6.6%
6. MAIL 5.8%
7. Unrecognized term 4.1%
8. SUBJECT INDEX (ABI DB) 3.3%
9. ABI/INFORM DB 2.5%
10. PUBLICATION TYPES (ABI DB) 2.5%
11. All others 19.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.6%
2. First word of command is invalid 19.4%
3. FIND command with zero results 9.5%
4. FIND command with invalid index name 8.4%
5. DISPLAY command-complete in one screen 4.2%
6. DISPLAY command-first of >1 screen 3.8%
7. FIND command retrieves >1 book 3.4%
8. DISPLAY command - middle of >1 screen 3.4%
9. NS command - no next screen 3.0%
10. 3 HELP commands issued from same code 2.7%
11. All others 18.6%
Ten most frequent SHOW requests:
1. HISTORY 54.8%
2. SEARCH 16.1%
3. SETTINGS (ABI DB) 12.9%
4. MAIL STATUS 9.7%
5. MAIL SETTINGS 3.2%
6. DATABASES 3.2%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)