MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/22/02 through 06/28/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 13,845 385,245
BIO88 2,291 66,943
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 774 7,998
2-4 a.m. 283 3,964
4-6 a.m. 73 1,403
6-8 a.m. 553 7,205
8-10 a.m. 1,053 30,111
10-12 a.m. 2,776 96,400
12-2 p.m. 2,802 87,877
2-4 p.m. 3,007 85,763
4-6 p.m. 2,797 81,547
6-8 p.m. 1,233 32,323
8-10 p.m. 500 11,173
10-12 p.m. 285 6,424
__________ _____________ _________________
Total: 16,136 452,188
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 520
Davis 543
Irvine 7
Los Angeles 82
Riverside 211
San Diego 84
San Francisco 2
Santa Barbara 36
Santa Cruz 5
Lawrence Berkeley 2
Lawrence Livermore 5
Los Alamos 0
MELWEB 11,824
Searchlight 2,618
Other - UC 56
Other-Network UC 141
_____
16,136
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 46,086
Davis 7,073
Irvine 109
Los Angeles 1,579
Riverside 63,439
San Diego 1,020
San Francisco 43
Santa Barbara 604
Santa Cruz 7
Lawrence Berkeley 59
Lawrence Livermore 84
Los Alamos 0
MELWEB 318,096
Searchlight 11,094
Other - UC 983
Other-Network UC 1,912
_____
452,188
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.0
Standard deviation in seconds 8.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:39
Average session length (minutes:seconds) 20:20
Longest session recorded (minutes:seconds) 193:19
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 1041.8
Retrievals per search - standard deviation 9054.3
Percent of searches completed with 0 results 24.8%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 16,136 7.7%
PRESENT 185,871 89.3%
INIT or CLOSE 5,895 2.8%
OTHER 333 0.2%
SEARCHes completed: RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By index:
PERSONAL AUTHOR 5,214 23.8% 1,018 19.5% 7 219.4 4392.0
TITLE WORD 2,997 13.7% 1,566 52.3% 3 336.9 2848.0
EXACT TITLE 140 0.6% 84 60.0% 1 12.2 45.6
KEYWORD 8,868 40.6% 1,640 18.5% 21 1771.3 11879.8
JOURNAL 822 3.8% 294 35.8% 8 4135.1 17146.5
EXACT JOURNAL 215 1.0% 83 38.6% 92 4449.0 12955.8
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
BIOSYS NAMES 4 0.0% 1 25.0% 19 15.7 13.3
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 31 0.1% 2 6.5% 3 32.0 109.2
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 2 0.0% 0 0.0% 104439 104439 147660
PUBLICATION TYPE 12 0.1% 3 25.0% 14 82.9 181.7
DATE 66 0.3% 12 18.2% 7 27.8 49.8
LANGUAGE 14 0.1% 4 28.6% 68 360.4 607.7
ADDED 1,412 6.5% 1,233 87.3% 2 11.0 35.0
AUTHOR AFFIL. 96 0.4% 19 19.8% 15 57.1 238.9
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 2 0.0% 2 100% 0 0.0 0.0
ISBN 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 0 0.0% 0 0.0% 0 0.0 0.0
AT 82 0.4% 17 20.7% 9 2425.8 15104.9
Other indexes 1,888 8.6% 335 17.7% 19 930.6 8964.1
RETRIEVALS PER NON-
TOTAL ZERO RESULTS ZERO RESULT SEARCHES
_____________ ______________ ______________________
% of % of
all all for Std.
No. SEARCHes No. Index Median Avg. Dev.
______ _________ ______ _______ ______ __________ _______
By number of indexes:
Multiple 4,993 30.9% 2,091 41.9% 6 646.3 7523.8
Single 11,143 69.1% 1,912 17.2% 19 1618.0 11165.4
PRESENT commands, by type:
MARC 78.2%
OPAC 12.4%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)