MELVYL ABI DATABASE TELNET STATISTICS
Time period: 05/01/01 through 05/31/01
1.0 SUMMARY STATISTICS
_______________________
1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 20 262 282
Davis 73 2 75
Irvine 95 0 95
Los Angeles 1 128 129
Riverside 30 0 30
San Diego 13 41 54
San Francisco 35 0 35
Santa Barbara 12 17 29
Santa Cruz 9 4 13
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 3 3
Los Alamos 0 0 0
Other - UC 4 3 7
Other-Network UC n/a 196 196
_______ ______ _____
292 656 948
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 14 85 1,155
2-4 a.m. 7 29 58
4-6 a.m. 12 48 320
6-8 a.m. 15 45 858
8-10 a.m. 97 283 4,200
10-12 a.m. 164 473 5,149
12-2 p.m. 176 533 6,799
2-4 p.m. 195 476 9,591
4-6 p.m. 118 361 3,985
6-8 p.m. 76 227 2,390
8-10 p.m. 29 99 1,087
10-12 p.m. 45 209 3,594
__________ __________ __________ _________________
Total: 948 2,868 39,186
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 64 825 889
Davis 175 3 178
Irvine 441 0 441
Los Angeles 7 353 360
Riverside 53 0 53
San Diego 27 165 192
San Francisco 116 0 116
Santa Barbara 25 46 71
Santa Cruz 22 5 27
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 7 7
Los Alamos 0 0 0
Other - UC 6 5 11
Other-Network UC n/a 523 523
_______ ______ _____
936 1,932 2,868
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 305 12,419 12,724
Davis 1,808 7 1,815
Irvine 5,981 0 5,981
Los Angeles 36 7,351 7,387
Riverside 591 0 591
San Diego 333 3,158 3,491
San Francisco 1,626 0 1,626
Santa Barbara 126 601 727
Santa Cruz 135 71 206
Lawrence Berkeley 0 0 0
Lawrence Livermore 0 256 256
Los Alamos 0 0 0
Other - UC 3 32 35
Other-Network UC n/a 4,347 4,347
_______ ______ _____
10,944 28,242 39,186
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.6
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) 11:01
Average session length (minutes:seconds) 14:32
Longest session recorded (minutes:seconds) 247:05
Average number of searches completed per session 3.0
Retrievals per search - median 7.0
Retrievals per search - average 1147.8
Retrievals per search - standard deviation 13806
Percent of searches completed with 0 results 26.4%
Percent of searches entered that are long 2.6%
Percent of long searches completed
(includes partial results) 60.8%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 2,588 26.1%
DISPLAY (excluding automatic displays) 4,686 47.3%
BROWSE 11 0.1%
SELECT 2 0.0%
HELP 129 1.3%
EXPLAIN 126 1.3%
SET/RESET 421 4.2%
SHOW 42 0.4%
ADD ON (AND, OR, AND NOT) 279 2.8%
LOGON or LOGOFF 1,146 11.6%
COMMENT 0 0.0%
SAVE 210 2.1%
USE 3 0.0%
OTHER 278 2.8%
2.1 Article Text
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DISPLAY TEXT commands 391
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 76
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 752 26.1% 185 24.6% 13 68.4 226.3
TITLE WORD 573 19.9% 211 36.8% 7 53.1 142.8
EXACT TITLE 60 2.1% 31 51.7% 3 26.0 69.0
JOURNAL 113 3.9% 44 38.9% 237 2456.1 5376.1
EXACT JOURNAL 98 3.4% 31 31.6% 478 4165.9 8179.9
SUBJECT 168 5.8% 72 42.9% 133 5802.1 27766.6
EXACT SUBJECT 11 0.4% 2 18.2% 1,038 3420.9 5803.3
KEYWORD 791 27.5% 143 18.1% 56 2871.8 26343.7
PUB TYPE 19 0.7% 1 5.3% 70 295.8 667.2
DATE 117 4.1% 25 21.4% 8 98.3 273.2
ADDED 9 0.3% 2 22.2% 14,032 9838.0 5230.8
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 2 0.1% 1 50.0% 3,568 3568.0 0.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 8 0.3% 1 12.5% 6 393.9 486.6
COMPANY NAME 37 1.3% 13 35.1% 40 963.1 2280.2
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 0 0.0% 0 0.0% 0 0.0 0.0
PERIODICAL 67 2.3% 9 13.4% 5 43.8 102.9
EXACT PE 37 1.3% 4 10.8% 3 37.7 94.1
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 15 0.5% 2 13.3% 360 3702.1 5936.5
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 301 11.7% 84 27.9% 6 124.9 423.2
Single 2,261 88.3% 604 26.7% 26 1850.2 17975.2
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 11 100% 2 18.2% 1 5.1 9.5
EXACT SUBJECT 0 0.0% 0 0.0% 0 0.0 0.0
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.2%
SHORT 89.4%
LONG 1.7%
TAGS 0.0%
FIELDS 2.4%
BROWSE REVIEW 0.1%
BROWSE LONG 0.0%
PERIODICALS 2.6%
COMMENTS 0.0%
Other 1.6%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.3%
Ten most frequent errors:
1. First word of command is invalid 32.4%
2. NS command - no next screen 32.1%
3. FIND command with invalid index name 9.4%
4. DISPLAY command contains invalid word 3.9%
5. PS command - no previous screen 2.6%
6. Valid command at an inappropriate time 2.1%
7. Search term missing from search command 1.7%
8. DISPLAY command-record numbers too large 1.3%
9. Add-on search, no index name after verb 1.2%
10. Max. # of ports to a Z39 db are in use 1.2%
11. All others 12.3%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 31.7%
2. INDEXES (ABI DB) 11.1%
3. FIND (ABI DB) 9.5%
4. ABI/INFORM DB 5.6%
5. MAIL 5.6%
6. LOCATE (ARTICLE DBS) 4.0%
7. DISPLAY (ABI DB) 3.2%
8. Unrecognized term-reminders off 3.2%
9. MAGS TEXT 2.4%
10. B042 2.4%
11. All others 21.4%
Ten most frequent HELP situations:
1. Help requested from SET DB command 26.7%
2. First word of command is invalid 20.0%
3. FIND command with invalid index name 7.8%
4. FIND command with zero results 6.7%
5. 3 HELP commands issued from same code 6.3%
6. DISPLAY command-first of >1 screen 3.9%
7. DISPLAY command - last of >1 screen 3.5%
8. FIND command retrieves >1 book 3.1%
9. DISPLAY command-complete in one screen 3.1%
10. DISPLAY command - middle of >1 screen 2.7%
11. All others 16.1%
Ten most frequent SHOW requests:
1. HISTORY 77.8%
2. SEARCH 11.1%
3. GLOSSARY 5.6%
4. SETTINGS (ABI DB) 2.8%
5. MAIL STATUS 2.8%
11. All others 0.0%
ABImm/dd abi MELVYL ABI DATABASE TELNET STATISTICS (weekly)