MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/01/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 12 129 141
Davis 61 0 61
Irvine 32 0 32
Los Angeles 1 50 51
Riverside 1 2 3
San Diego 6 21 27
San Francisco 0 0 0
Santa Barbara 7 2 9
Santa Cruz 1 2 3
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 12 12
Other-Network UC n/a 76 76
_______ ______ _____
121 295 416
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 8 127 91
2-4 a.m. 1 1 99
4-6 a.m. 3 19 24
6-8 a.m. 18 45 224
8-10 a.m. 47 165 1,597
10-12 a.m. 72 195 2,111
12-2 p.m. 66 238 3,408
2-4 p.m. 72 217 3,219
4-6 p.m. 58 203 2,014
6-8 p.m. 17 54 562
8-10 p.m. 19 67 850
10-12 p.m. 35 229 559
__________ __________ __________ _________________
Total: 416 1,560 14,758
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 73 617 690
Davis 278 0 278
Irvine 77 0 77
Los Angeles 3 131 134
Riverside 2 2 4
San Diego 17 91 108
San Francisco 0 0 0
Santa Barbara 24 3 27
Santa Cruz 6 3 9
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 0 46 46
Other-Network UC n/a 180 180
_______ ______ _____
480 1,080 1,560
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 1,196 4,413 5,609
Davis 2,522 0 2,522
Irvine 427 0 427
Los Angeles 9 2,481 2,490
Riverside 5 2 7
San Diego 85 501 586
San Francisco 0 0 0
Santa Barbara 196 0 196
Santa Cruz 50 3 53
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 107 107
Los Alamos 0 0 0
Other - UC 0 278 278
Other-Network UC n/a 2,483 2,483
_______ ______ _____
4,490 10,268 14,758
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.5
Standard deviation in seconds 1.1
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) 7:04
Average session length (minutes:seconds) 13:40
Longest session recorded (minutes:seconds) 206:26
Average number of searches completed per session 3.7
Retrievals per search - median 2.0
Retrievals per search - average 597.7
Retrievals per search - standard deviation 5070.1
Percent of searches completed with 0 results 40.6%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 66.7%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 1,443 31.4%
DISPLAY (excluding automatic displays) 2,039 44.3%
BROWSE 13 0.3%
SELECT 5 0.1%
HELP 48 1.0%
EXPLAIN 48 1.0%
SET/RESET 165 3.6%
SHOW 12 0.3%
ADD ON (AND, OR, AND NOT) 114 2.5%
LOGON or LOGOFF 523 11.4%
COMMENT 0 0.0%
SAVE 95 2.1%
USE 1 0.0%
OTHER 111 2.4%
2.1 Article Text
_________________
DISPLAY TEXT commands 197
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 16
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 658 35.7% 397 60.3% 9 46.4 202.0
TITLE WORD 221 12.0% 87 39.4% 7 277.3 1975.9
EXACT TITLE 21 1.1% 13 61.9% 3 7.5 11.4
JOURNAL 42 2.3% 18 42.9% 20 1820.8 6623.9
EXACT JOURNAL 29 1.6% 8 27.6% 874 3619.7 7020.3
SUBJECT 92 5.0% 31 33.7% 210 3603.6 8480.3
EXACT SUBJECT 3 0.2% 3 100% 0 0.0 0.0
KEYWORD 303 16.4% 37 12.2% 75 1913.0 10843.1
PUB TYPE 6 0.3% 1 16.7% 113 111.6 88.0
DATE 16 0.9% 1 6.3% 27 337.9 707.4
ADDED 324 17.6% 307 94.8% 1 1.0 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 0 0.0% 0 0.0% 0 0.0 0.0
COMPANY NAME 33 1.8% 10 30.3% 13 88.0 152.0
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 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 2 0.1% 1 50.0% 202 202.0 0.0
PERIODICAL 83 4.5% 13 15.7% 5 110.4 735.9
EXACT PE 9 0.5% 1 11.1% 17 18.4 15.0
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 1 0.1% 0 0.0% 895 895.0 0.0
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 410 28.6% 323 78.8% 5 266.9 1094.5
Single 1,023 71.4% 282 27.6% 19 1171.3 7254.2
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 13 100% 5 38.5% 4 4.8 3.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 3.3%
SHORT 84.7%
LONG 1.6%
TAGS 0.0%
FIELDS 2.8%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 6.3%
COMMENTS 0.0%
Other 1.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 12.6%
Ten most frequent errors:
1. DISPLAY command - no FIND results 47.4%
2. NS command - no next screen 15.9%
3. First word of command is invalid 14.0%
4. FIND command with invalid index name 5.4%
5. Add-on search, no index name after verb 4.7%
6. DISPLAY command contains invalid word 2.0%
7. Search term missing from search command 1.7%
8. DISPLAY command-record numbers too large 1.1%
9. PS command - no previous screen 1.1%
10. Invalid SET DATABASE command issued 0.8%
11. All others 6.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 16.7%
2. INDEXES (ABI DB) 14.6%
3. FIND (ABI DB) 12.5%
4. DISPLAY (ABI DB) 6.3%
5. Unrecognized term 6.3%
6. DATABASES 6.3%
7. COMMANDS (ABI/PSY DBS) 4.2%
8. MAIL 4.2%
9. LOCATE (ARTICLE DBS) 4.2%
10. FULL TEXT 2.1%
11. All others 22.9%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.0%
2. First word of command is invalid 14.6%
3. FIND command with invalid index name 11.5%
4. FIND command with zero results 11.5%
5. NS command - no next screen 4.2%
6. DISPLAY command-complete in one screen 4.2%
7. DISPLAY command - no FIND results 3.1%
8. PS command - no previous screen 3.1%
9. FIND command retrieves >1 book 3.1%
10. DISPLAY command - middle of >1 screen 3.1%
11. All others 15.6%
Ten most frequent SHOW requests:
1. HISTORY 83.3%
2. GLOSSARY 16.7%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)