MELVYL ABI DATABASE TELNET STATISTICS
Time period: 03/01/01 through 03/31/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 43 339 382
Davis 67 3 70
Irvine 92 0 92
Los Angeles 2 144 146
Riverside 25 0 25
San Diego 16 30 46
San Francisco 48 0 48
Santa Barbara 13 18 31
Santa Cruz 4 2 6
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 1 7 8
Other-Network UC n/a 260 260
_______ ______ _____
311 806 1,117
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 28 60 609
2-4 a.m. 17 52 664
4-6 a.m. 9 48 402
6-8 a.m. 26 56 629
8-10 a.m. 92 286 4,577
10-12 a.m. 197 591 6,469
12-2 p.m. 182 512 7,364
2-4 p.m. 217 688 19,923
4-6 p.m. 173 587 85,257
6-8 p.m. 86 245 5,312
8-10 p.m. 52 163 2,486
10-12 p.m. 38 135 2,358
__________ __________ __________ _________________
Total: 1,117 3,423 136,050
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 96 1,067 1,163
Davis 173 11 184
Irvine 314 0 314
Los Angeles 3 503 506
Riverside 66 0 66
San Diego 36 108 144
San Francisco 167 0 167
Santa Barbara 29 43 72
Santa Cruz 5 8 13
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 5 5
Los Alamos 0 0 0
Other - UC 1 15 16
Other-Network UC n/a 773 773
_______ ______ _____
890 2,533 3,423
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 508 105,699 106,207
Davis 1,707 43 1,750
Irvine 2,671 0 2,671
Los Angeles 5 8,100 8,105
Riverside 596 0 596
San Diego 215 1,070 1,285
San Francisco 4,196 0 4,196
Santa Barbara 308 382 690
Santa Cruz 50 156 206
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 82 82
Los Alamos 0 0 0
Other - UC 9 85 94
Other-Network UC n/a 10,168 10,168
_______ ______ _____
10,265 125,785 136,050
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 1.0
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) 10:34
Average session length (minutes:seconds) 15:19
Longest session recorded (minutes:seconds) 359:18
Average number of searches completed per session 3.0
Retrievals per search - median 8.0
Retrievals per search - average 1465.3
Retrievals per search - standard deviation 10360
Percent of searches completed with 0 results 27.0%
Percent of searches entered that are long 2.3%
Percent of long searches completed
(includes partial results) 67.1%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 3,088 26.7%
DISPLAY (excluding automatic displays) 5,200 44.9%
BROWSE 18 0.2%
SELECT 3 0.0%
HELP 164 1.4%
EXPLAIN 123 1.1%
SET/RESET 489 4.2%
SHOW 39 0.3%
ADD ON (AND, OR, AND NOT) 335 2.9%
LOGON or LOGOFF 1,352 11.7%
COMMENT 0 0.0%
SAVE 431 3.7%
USE 4 0.0%
OTHER 348 3.0%
2.1 Article Text
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DISPLAY TEXT commands 634
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 107
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 843 25.3% 215 25.5% 11 39.9 116.2
TITLE WORD 654 19.6% 251 38.4% 8 76.2 243.2
EXACT TITLE 75 2.2% 36 48.0% 1 25.1 105.7
JOURNAL 185 5.5% 83 44.9% 223 1655.4 5563.4
EXACT JOURNAL 101 3.0% 37 36.6% 1,173 4556.0 8563.7
SUBJECT 277 8.3% 138 49.8% 1,655 13197.9 23864.5
EXACT SUBJECT 46 1.4% 8 17.4% 1,272 5866.6 10826.2
KEYWORD 857 25.7% 116 13.5% 88 2912.0 18112.5
PUB TYPE 17 0.5% 1 5.9% 32 328.3 948.7
DATE 66 2.0% 18 27.3% 17 773.2 2719.7
ADDED 6 0.2% 0 0.0% 13,241 12157.3 1751.3
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 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 12 0.4% 1 8.3% 206 301.3 377.1
EX COMPANY NAME 2 0.1% 2 100% 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 2 0.1% 2 100% 0 0.0 0.0
PERIODICAL 99 3.0% 12 12.1% 4 11.3 22.9
EXACT PE 46 1.4% 1 2.2% 3 8.2 11.6
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 45 1.3% 5 11.1% 107 878.2 3017.6
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 268 8.8% 94 35.1% 7 282.5 1495.7
Single 2,794 91.2% 736 26.3% 28 2327.1 13167.0
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 16 88.9% 4 25.0% 5 4.8 2.3
EXACT SUBJECT 2 11.1% 0 0.0% 2 2.0 1.4
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.1%
SHORT 87.8%
LONG 0.8%
TAGS 0.0%
FIELDS 1.8%
BROWSE REVIEW 0.2%
BROWSE LONG 0.0%
PERIODICALS 3.3%
COMMENTS 0.0%
Other 3.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 8.5%
Ten most frequent errors:
1. NS command - no next screen 32.7%
2. First word of command is invalid 28.1%
3. FIND command with invalid index name 8.9%
4. DISPLAY command contains invalid word 6.3%
5. PS command - no previous screen 4.0%
6. Valid command at an inappropriate time 2.2%
7. Search term missing from search command 2.1%
8. DISPLAY command - no FIND results 1.4%
9. DISPLAY command-record numbers too large 1.2%
10. Add-on search, no index name after verb 1.0%
11. All others 12.1%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 23.6%
2. LOCATE (ARTICLE DBS) 14.6%
3. FIND (ABI DB) 9.8%
4. INDEXES (ABI DB) 8.1%
5. COMMANDS (ABI/PSY DBS) 4.9%
6. ADDON SEARCH 4.1%
7. DISPLAY (ABI DB) 3.3%
8. Unrecognized term 3.3%
9. PUBLICATION TYPES (ABI DB) 2.4%
10. MAGS TEXT 1.6%
11. All others 24.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 24.0%
2. First word of command is invalid 12.2%
3. FIND command with invalid index name 7.3%
4. DISPLAY command-first of >1 screen 7.0%
5. FIND command with zero results 5.6%
6. FIND command retrieves >1 book 5.6%
7. DISPLAY command - middle of >1 screen 4.9%
8. PS command - no previous screen 4.5%
9. DISPLAY command-complete in one screen 3.1%
10. DISPLAY command contains invalid word 2.4%
11. All others 23.3%
Ten most frequent SHOW requests:
1. SEARCH 59.4%
2. HISTORY 28.1%
3. MAIL SETTINGS 6.3%
4. SYSTEM NEWS 3.1%
5. FIND DISPLAY 3.1%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)