MELVYL ABI DATABASE TELNET STATISTICS
Time period: 06/01/99 through 06/30/99
1.0 SUMMARY STATISTICS
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1.1 Total sessions:
____________________
Zero results may indicate no access to the database
Location Library Remote Total
________ _______ ______ _____
Berkeley 73 858 931
Davis 204 10 214
Irvine 336 0 336
Los Angeles 30 466 496
Riverside 253 9 262
San Diego 30 113 143
San Francisco 73 4 77
Santa Barbara 86 40 126
Santa Cruz 42 40 82
Lawrence Berkeley 0 2 2
Lawrence Livermore 0 1 1
Los Alamos 0 0 0
Other - UC 16 43 59
Other-Network UC n/a 443 443
_______ ______ _____
1,143 2,029 3,172
Per hour usage:
Time Sessions Finds Records Displayed
__________ __________ __________ _________________
12-2 a.m. 40 153 2,058
2-4 a.m. 16 154 1,100
4-6 a.m. 26 103 506
6-8 a.m. 48 163 2,996
8-10 a.m. 292 1,080 13,421
10-12 a.m. 514 1,878 19,838
12-2 p.m. 592 2,093 24,205
2-4 p.m. 688 2,744 30,408
4-6 p.m. 456 1,576 23,326
6-8 p.m. 207 837 12,090
8-10 p.m. 182 523 6,333
10-12 p.m. 111 307 5,308
__________ __________ __________ _________________
Total: 3,172 11,611 141,589
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 335 3,190 3,525
Davis 622 23 645
Irvine 1,427 0 1,427
Los Angeles 160 1,779 1,939
Riverside 1,300 21 1,321
San Diego 111 404 515
San Francisco 186 5 191
Santa Barbara 225 121 346
Santa Cruz 136 113 249
Lawrence Berkeley 0 2 2
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 36 129 165
Other-Network UC n/a 1,284 1,284
_______ ______ _____
4,538 7,073 11,611
1.3 Records displayed
______________________
Zero results may indicate no access to the database
Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 2,870 42,546 45,416
Davis 6,355 425 6,780
Irvine 15,497 0 15,497
Los Angeles 1,106 24,664 25,770
Riverside 14,427 200 14,627
San Diego 881 4,834 5,715
San Francisco 3,314 0 3,314
Santa Barbara 2,714 1,378 4,092
Santa Cruz 1,721 1,097 2,818
Lawrence Berkeley 0 4 4
Lawrence Livermore 0 2 2
Los Alamos 0 0 0
Other - UC 272 711 983
Other-Network UC n/a 16,571 16,571
_______ ______ _____
49,157 92,432 141,589
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.8
Standard deviation in seconds 3.1
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 11:22
Average session length (minutes:seconds) 15:51
Longest session recorded (minutes:seconds) 181:02
Average number of searches completed per session 3.6
Retrievals per search - median 8.0
Retrievals per search - average 1510.8
Retrievals per search - standard deviation 15172
Percent of searches completed with 0 results 27.9%
Percent of searches entered that are long 2.3%
Percent of long searches completed
(includes partial results) 67.4%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
FIND 10,394 24.2%
DISPLAY (excluding automatic displays) 21,549 50.2%
BROWSE 48 0.1%
SELECT 7 0.0%
HELP 597 1.4%
EXPLAIN 626 1.5%
SET/RESET 1,195 2.8%
SHOW 240 0.6%
ADD ON (AND, OR, AND NOT) 1,216 2.8%
LOGON or LOGOFF 4,212 9.8%
COMMENT 1 0.0%
SAVE 1,664 3.9%
USE 22 0.1%
OTHER 1,251 2.9%
2.1 Article Text
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DISPLAY TEXT commands 2,308
TEXT included with CONTINUOUS, PRINT, CAPTURE, or SLOW 276
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 2,399 20.8% 626 26.1% 12 63.0 224.7
TITLE WORD 1,580 13.7% 564 35.7% 10 157.2 1076.0
EXACT TITLE 234 2.0% 76 32.5% 1 23.1 116.3
JOURNAL 624 5.4% 222 35.6% 252 3551.0 16555.6
EXACT JOURNAL 333 2.9% 130 39.0% 996 4631.6 8030.4
SUBJECT 1,208 10.5% 674 55.8% 442 6583.6 20611.9
EXACT SUBJECT 60 0.5% 29 48.3% 2,031 7007.9 11293.9
KEYWORD 3,991 34.6% 690 17.3% 52 3067.4 25938.4
PUB TYPE 50 0.4% 7 14.0% 92 360.8 878.0
DATE 470 4.1% 102 21.7% 23 87.9 152.8
ADDED 2 0.0% 0 0.0% 15,325 15325.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
LANGUAGE 5 0.0% 0 0.0% 1,143 924.8 487.9
GEOGRAPHIC NAME 3 0.0% 0 0.0% 3,932 3994.0 3894.4
SUBJ CATEGORY 6 0.1% 2 33.3% 65 1320.0 2549.5
COMPANY NAME 167 1.4% 58 34.7% 21 530.9 2136.3
EX COMPANY NAME 44 0.4% 3 6.8% 127 360.6 1332.2
DUNS 5 0.0% 0 0.0% 312 312.4 0.5
TICKER SYMBOL 8 0.1% 4 50.0% 709 1847.3 2319.4
ID NUMBER 1 0.0% 0 0.0% 1 1.0 0.0
ISSN 61 0.5% 11 18.0% 694 1549.7 3904.1
PERIODICAL 129 1.1% 35 27.1% 5 320.1 2892.9
EXACT PE 46 0.4% 7 15.2% 3 6.2 10.8
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 118 1.0% 18 15.3% 30 1261.5 4353.5
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 1,188 11.5% 317 26.7% 14 210.0 1439.2
Single 9,119 88.5% 2,612 28.6% 33 2543.3 19987.2
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 37 77.1% 14 37.8% 2 3.7 5.4
EXACT SUBJECT 11 22.9% 6 54.5% 11 9.0 4.5
DISPLAY commands, by type, excluding automatic displays:
REVIEW 2.0%
SHORT 90.6%
LONG 0.6%
TAGS 0.0%
FIELDS 2.0%
BROWSE REVIEW 0.0%
BROWSE LONG 0.0%
PERIODICALS 1.0%
COMMENTS 0.0%
Other 3.7%
2.2 Error, EXPLAIN and HELP statistics
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Percent of commands that contained errors 9.3%
Ten most frequent errors:
1. NS command - no next screen 33.3%
2. First word of command is invalid 29.9%
3. FIND command with invalid index name 8.4%
4. DISPLAY command contains invalid word 5.0%
5. PS command - no previous screen 3.1%
6. Valid command at an inappropriate time 2.7%
7. DISPLAY command-record numbers too large 1.7%
8. Search term missing from search command 1.6%
9. Add-on search, no index name after verb 1.2%
10. DISPLAY command - no FIND results 1.0%
11. All others 12.2%
Ten most frequent EXPLAIN requests:
1. GUIDE (ABI DB) 20.1%
2. FIND (ABI DB) 15.2%
3. LOCATE (ARTICLE DBS) 8.5%
4. INDEXES (ABI DB) 8.0%
5. COMMANDS (ABI/PSY DBS) 6.2%
6. MAIL 5.1%
7. ABI/INFORM DB 3.7%
8. MAGS TEXT 3.5%
9. Unrecognized term 3.5%
10. PUBLICATION TYPES (ABI DB) 3.0%
11. All others 23.2%
Ten most frequent HELP situations:
1. Help requested from SET DB command 23.4%
2. First word of command is invalid 12.9%
3. FIND command with zero results 9.2%
4. FIND command with invalid index name 8.5%
5. DISPLAY command - middle of >1 screen 6.1%
6. DISPLAY command-first of >1 screen 5.1%
7. FIND command retrieves >1 book 4.7%
8. DISPLAY command-complete in one screen 4.3%
9. NS command - no next screen 2.0%
10. DISPLAY command - last of >1 screen 1.7%
11. All others 22.3%
Ten most frequent SHOW requests:
1. HISTORY 57.7%
2. MAIL STATUS 15.5%
3. SEARCH 13.4%
4. MAIL SETTINGS 3.6%
5. DISPLAY 3.1%
6. GLOSSARY 1.5%
7. SYSTEM NEWS 1.5%
8. LIBRARY NEWS 1.0%
9. ABI NEWS 0.5%
10. UCI NEWS 0.5%
11. All others 1.5%