MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/16/01 through 06/22/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 55 56
Davis 10 0 10
Irvine 25 0 25
Los Angeles 0 41 41
Riverside 2 0 2
San Diego 2 2 4
San Francisco 17 0 17
Santa Barbara 1 5 6
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 1 1 2
Other-Network UC n/a 51 51
_______ ______ _____
59 157 216
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 5 26 104
2-4 a.m. 0 0 0
4-6 a.m. 4 6 118
6-8 a.m. 5 8 30
8-10 a.m. 29 62 289
10-12 a.m. 40 100 656
12-2 p.m. 36 103 1,179
2-4 p.m. 37 158 1,648
4-6 p.m. 17 38 331
6-8 p.m. 13 39 845
8-10 p.m. 13 40 450
10-12 p.m. 17 83 1,748
__________ __________ __________ _________________
Total: 216 663 7,398
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 7 125 132
Davis 53 0 53
Irvine 114 0 114
Los Angeles 0 155 155
Riverside 3 0 3
San Diego 3 2 5
San Francisco 47 0 47
Santa Barbara 11 7 18
Santa Cruz 1 0 1
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 1 4 5
Other-Network UC n/a 123 123
_______ ______ _____
240 423 663
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 49 1,103 1,152
Davis 246 0 246
Irvine 1,202 0 1,202
Los Angeles 0 1,434 1,434
Riverside 0 0 0
San Diego 91 23 114
San Francisco 623 0 623
Santa Barbara 14 17 31
Santa Cruz 2 0 2
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 68 68
Los Alamos 0 0 0
Other - UC 0 12 12
Other-Network UC n/a 2,514 2,514
_______ ______ _____
2,227 5,171 7,398
1.4 Response time
__________________
Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.4
Standard deviation in seconds 0.7
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) 12:15
Average session length (minutes:seconds) 15:51
Longest session recorded (minutes:seconds) 124:29
Average number of searches completed per session 3.0
Retrievals per search - median 7.0
Retrievals per search - average 428.0
Retrievals per search - standard deviation 2632.3
Percent of searches completed with 0 results 25.0%
Percent of searches entered that are long 2.1%
Percent of long searches completed
(includes partial results) 50.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 604 31.9%
DISPLAY (excluding automatic displays) 822 43.4%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 8 0.4%
EXPLAIN 10 0.5%
SET/RESET 113 6.0%
SHOW 0 0.0%
ADD ON (AND, OR, AND NOT) 59 3.1%
LOGON or LOGOFF 230 12.1%
COMMENT 0 0.0%
SAVE 2 0.1%
USE 1 0.1%
OTHER 47 2.5%
2.1 Article Text
_________________
DISPLAY TEXT commands 60
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 7
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 298 43.9% 68 22.8% 15 114.0 383.2
TITLE WORD 113 16.6% 41 36.3% 8 64.8 112.7
EXACT TITLE 10 1.5% 2 20.0% 1 21.4 56.8
JOURNAL 30 4.4% 8 26.7% 413 4541.0 11554.7
EXACT JOURNAL 12 1.8% 3 25.0% 2,123 3068.4 2889.7
SUBJECT 11 1.6% 7 63.6% 9 4373.3 8733.2
EXACT SUBJECT 3 0.4% 2 66.7% 2,834 2834.0 0.0
KEYWORD 123 18.1% 22 17.9% 64 898.5 2795.3
PUB TYPE 2 0.3% 0 0.0% 121 120.5 142.1
DATE 41 6.0% 7 17.1% 4 124.5 615.1
ADDED 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 1 0.1% 0 0.0% 135 135.0 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 7 1.0% 3 42.9% 1,113 1022.5 980.6
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 1 0.1% 0 0.0% 96 96.0 0.0
PERIODICAL 14 2.1% 3 21.4% 6 74.1 196.6
EXACT PE 10 1.5% 3 30.0% 1 8.7 16.2
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 3 0.4% 0 0.0% 289 1824.7 2860.5
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 79 13.2% 19 24.0% 5 116.4 476.0
Single 519 86.8% 130 25.0% 23 696.1 3387.8
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 0 0.0% 0 0.0% 0.0 0.0 0.0
EXACT SUBJECT 0 0.0% 0 0.0% 0.0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 7.5%
SHORT 87.3%
LONG 0.4%
TAGS 0.0%
FIELDS 1.6%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.8%
COMMENTS 0.0%
Other 0.4%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 6.3%
Ten most frequent errors:
1. NS command - no next screen 46.1%
2. First word of command is invalid 20.3%
3. Max. # of ports to a Z39 db are in use 6.3%
4. DISPLAY command contains invalid word 4.7%
5. FIND command with invalid index name 4.7%
6. Search term missing from search command 2.3%
7. Invalid SET DATABASE command issued 1.6%
8. PS command - no previous screen 1.6%
9. Add-on search, no index name after verb 1.6%
10. DATE search with unrecognized word 1.6%
11. All others 9.4%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 50.0%
2. COMMANDS (ABI/PSY DBS) 20.0%
3. MAGS TEXT 10.0%
4. FIND (ABI DB) 10.0%
5. MAIL 10.0%
11. All others 0.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 27.8%
2. First word of command is invalid 16.7%
3. FIND command with zero results 11.1%
4. DISPLAY command - middle of >1 screen 11.1%
5. MAIL command entered w/o email address 11.1%
6. 15 5.6%
7. FIND command retrieves 1 book 5.6%
8. 243 5.6%
9. DISPLAY command-first of >1 screen 5.6%
11. All others 0.0%
Ten most frequent SHOW requests:
1. 0.0%
2. 0.0%
3. 0.0%
4. 0.0%
5. 0.0%
6. 0.0%
7. 0.0%
8. 0.0%
9. 0.0%
10. 0.0%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)