MELVYL ABI DATABASE TELNET STATISTICS
Time period: 12/01/01 through 12/07/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 1 63 64
Davis 13 0 13
Irvine 17 0 17
Los Angeles 0 28 28
Riverside 0 0 0
San Diego 0 8 8
San Francisco 6 0 6
Santa Barbara 0 11 11
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 41 41
_______ ______ _____
37 154 191
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 7 18 492
2-4 a.m. 2 7 24
4-6 a.m. 6 18 234
6-8 a.m. 4 7 78
8-10 a.m. 30 75 742
10-12 a.m. 39 80 1,331
12-2 p.m. 23 57 639
2-4 p.m. 30 98 1,396
4-6 p.m. 19 34 473
6-8 p.m. 6 11 49
8-10 p.m. 7 18 236
10-12 p.m. 18 99 113
__________ __________ __________ _________________
Total: 191 522 5,807
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 1 192 193
Davis 51 0 51
Irvine 34 0 34
Los Angeles 0 64 64
Riverside 0 0 0
San Diego 0 31 31
San Francisco 12 0 12
Santa Barbara 0 41 41
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 0 2 2
Other-Network UC n/a 91 91
_______ ______ _____
98 424 522
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 145 1,494 1,639
Davis 198 0 198
Irvine 291 0 291
Los Angeles 0 1,089 1,089
Riverside 0 0 0
San Diego 0 211 211
San Francisco 485 0 485
Santa Barbara 0 574 574
Santa Cruz 0 0 0
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 40 40
Los Alamos 0 0 0
Other - UC 0 1 1
Other-Network UC n/a 1,279 1,279
_______ ______ _____
1,119 4,688 5,807
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 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) 7:58
Average session length (minutes:seconds) 13:26
Longest session recorded (minutes:seconds) 434:09
Average number of searches completed per session 2.7
Retrievals per search - median 3.0
Retrievals per search - average 1461.7
Retrievals per search - standard deviation 10428
Percent of searches completed with 0 results 36.7%
Percent of searches entered that are long 3.4%
Percent of long searches completed
(includes partial results) 77.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 463 24.1%
DISPLAY (excluding automatic displays) 852 44.3%
BROWSE 0 0.0%
SELECT 0 0.0%
HELP 18 0.9%
EXPLAIN 25 1.3%
SET/RESET 57 3.0%
SHOW 1 0.1%
ADD ON (AND, OR, AND NOT) 59 3.1%
LOGON or LOGOFF 281 14.6%
COMMENT 0 0.0%
SAVE 112 5.8%
USE 0 0.0%
OTHER 56 2.9%
2.1 Article Text
_________________
DISPLAY TEXT commands 52
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 9
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 187 31.9% 104 55.6% 12 113.9 483.7
TITLE WORD 68 11.6% 27 39.7% 8 164.0 487.3
EXACT TITLE 3 0.5% 1 33.3% 2 2.0 1.4
JOURNAL 18 3.1% 11 61.1% 8 74.6 174.1
EXACT JOURNAL 6 1.0% 2 33.3% 5 5.8 3.0
SUBJECT 18 3.1% 5 27.8% 680 2596.2 5885.1
EXACT SUBJECT 5 0.9% 4 80.0% 991 991.0 0.0
KEYWORD 148 25.3% 17 11.5% 67 4250.9 19601.8
PUB TYPE 18 3.1% 1 5.6% 118 470.1 893.7
DATE 6 1.0% 3 50.0% 10 1129.0 1946.0
ADDED 84 14.3% 84 100% 0 0.0 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 6 1.0% 3 50.0% 274 342.3 125.3
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 0.2% 0 0.0% 3 3.0 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 11 1.9% 2 18.2% 8 9.7 8.7
EXACT PE 6 1.0% 1 16.7% 1 3.4 3.6
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 1 0.2% 0 0.0% 10 10.0 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 125 27.2% 90 72.0% 10 242.5 655.9
Single 334 72.8% 84 25.1% 21 2415.5 14366.0
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 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 2.1%
SHORT 88.6%
LONG 0.4%
TAGS 0.0%
FIELDS 3.5%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 2.3%
COMMENTS 0.0%
Other 3.0%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 10.2%
Ten most frequent errors:
1. DISPLAY command - no FIND results 39.4%
2. NS command - no next screen 22.0%
3. First word of command is invalid 19.7%
4. FIND command with invalid index name 4.6%
5. Max. # of ports to a Z39 db are in use 2.8%
6. DISPLAY command contains invalid word 1.8%
7. PS command - no previous screen 1.4%
8. Add-on search, no index name after verb 0.9%
9. Index invalid in current database 0.9%
10. Command contains escape or arrow key 0.9%
11. All others 5.5%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 24.0%
2. FIND (ABI DB) 16.0%
3. INDEXES (ABI DB) 12.0%
4. ABI/INFORM DB 8.0%
5. PUBLICATION TYPES (ABI DB) 8.0%
6. MAIL 8.0%
7. MAGS DATABASE 4.0%
8. DATE (ABI DB) 4.0%
9. UPDATE SEARCH 4.0%
10. 1212 4.0%
11. All others 8.0%
Ten most frequent HELP situations:
1. Help requested from SET DB command 41.9%
2. First word of command is invalid 11.6%
3. FIND command with invalid index name 9.3%
4. FIND command with zero results 7.0%
5. DISPLAY command-complete in one screen 7.0%
6. DISPLAY command - middle of >1 screen 7.0%
7. F/BR with index invalid in current DB 4.7%
8. PS command - no previous screen 2.3%
9. 117 2.3%
10. DISPLAY command-first of >1 screen 2.3%
11. All others 4.7%
Ten most frequent SHOW requests:
1. ABI NEWS 100%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)