MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 08/04/01 through 08/10/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 10,905 303,120
BIO88 1,877 41,285
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 838 7,949
2-4 a.m. 418 3,958
4-6 a.m. 131 2,218
6-8 a.m. 284 4,855
8-10 a.m. 833 16,718
10-12 a.m. 2,299 71,505
12-2 p.m. 2,141 56,672
2-4 p.m. 2,457 79,787
4-6 p.m. 1,872 63,548
6-8 p.m. 711 20,735
8-10 p.m. 505 10,034
10-12 p.m. 293 6,426
__________ _____________ _________________
Total: 12,782 344,405
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 239
Davis 540
Irvine 10
Los Angeles 171
Riverside 149
San Diego 32
San Francisco 12
Santa Barbara 41
Santa Cruz 4
Lawrence Berkeley 18
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 606
Other - UC 10,384
Other-Network UC 576
_____
12,782
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,813
Davis 10,229
Irvine 104
Los Angeles 3,041
Riverside 2,224
San Diego 440
San Francisco 102
Santa Barbara 581
Santa Cruz 48
Lawrence Berkeley 33
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 316,694
Other-Network UC 8,096
_____
344,405
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.4
Standard deviation in seconds 9.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 2.4
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:26
Average session length (minutes:seconds) 20:30
Longest session recorded (minutes:seconds) 232:32
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 637.8
Retrievals per search - standard deviation 7807.6
Percent of searches completed with 0 results 25.6%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 12,782 13.1%
PRESENT 79,961 82.0%
INIT or CLOSE 4,649 4.8%
OTHER 149 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 4,305 23.5% 811 18.8% 8 135.6 3114.8
TITLE WORD 2,456 13.4% 1,276 52.0% 4 197.7 1697.9
EXACT TITLE 106 0.6% 59 55.7% 1 23.4 110.4
KEYWORD 6,840 37.3% 1,325 19.4% 17 984.5 9798.3
JOURNAL 542 3.0% 199 36.7% 6 3426.1 20043.6
EXACT JOURNAL 141 0.8% 56 39.7% 184 1638.3 3577.5
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 9 0.0% 4 44.4% 26 7932.8 17664.0
BIOSYS NAMES 7 0.0% 5 71.4% 4,848 4847.5 6854.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 19 0.1% 4 21.1% 12 227.3 435.1
MAJ CONCEPT CDES 3 0.0% 0 0.0% 73,704 55702.0 42296.1
CONCEPT CODES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 21 0.1% 4 19.0% 11 621.8 1974.3
DATE 82 0.4% 18 21.9% 5 76.3 464.9
LANGUAGE 28 0.2% 5 17.9% 17 480.3 1702.0
ADDED 1,441 7.9% 1,152 79.9% 3 10.6 23.9
AUTHOR AFFIL. 49 0.3% 18 36.7% 10 56.5 109.8
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 8 0.0% 1 12.5% 71 407.3 731.4
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 6 0.0% 1 16.7% 1,028 2056.0 3456.1
AT 116 0.6% 22 19.0% 11 173.0 541.7
Other indexes 2,176 11.9% 516 23.7% 14 1007.2 8288.7
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 4,637 36.3% 1,808 39.0% 6 354.9 4490.5
Single 8,145 63.7% 1,465 18.0% 19 1070.1 10377.5
PRESENT commands, by type:
MARC 53.2%
OPAC 31.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)