MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/23/00 through 12/29/00
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 3,391 86,352
BIO88 445 7,330
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 120 1,216
2-4 a.m. 257 1,666
4-6 a.m. 52 632
6-8 a.m. 161 3,597
8-10 a.m. 235 5,965
10-12 a.m. 547 15,878
12-2 p.m. 602 16,166
2-4 p.m. 759 20,325
4-6 p.m. 509 16,001
6-8 p.m. 306 7,036
8-10 p.m. 155 2,956
10-12 p.m. 133 2,244
__________ _____________ _________________
Total: 3,836 93,682
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 7
Davis 224
Irvine 0
Los Angeles 32
Riverside 67
San Diego 12
San Francisco 0
Santa Barbara 2
Santa Cruz 27
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,461
Searchlight 837
Other - UC 57
Other-Network UC 110
_____
3,836
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 108
Davis 2,761
Irvine 0
Los Angeles 324
Riverside 997
San Diego 1,175
San Francisco 0
Santa Barbara 26
Santa Cruz 1,370
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 80,603
Searchlight 3,054
Other - UC 1,838
Other-Network UC 1,426
_____
93,682
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.5
Standard deviation in seconds 4.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:24
Average session length (minutes:seconds) 17:06
Longest session recorded (minutes:seconds) 174:28
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 684.4
Retrievals per search - standard deviation 6923.6
Percent of searches completed with 0 results 22.8%
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 3,836 12.8%
PRESENT 24,449 81.4%
INIT or CLOSE 1,707 5.7%
OTHER 41 0.1%
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 1,287 24.5% 205 15.9% 10 60.5 330.9
TITLE WORD 473 9.0% 147 31.1% 3 87.6 440.6
EXACT TITLE 19 0.4% 15 78.9% 2 3.8 4.9
KEYWORD 2,264 43.1% 540 23.9% 16 696.1 5388.2
JOURNAL 188 3.6% 60 31.9% 5 8619.1 27809.0
EXACT JOURNAL 39 0.7% 20 51.3% 8 1179.7 3787.8
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 0 0.0% 0 0.0% 0 0.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 1 0.0% 0 0.0% 2 2.0 0.0
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 5 0.1% 1 20.0% 2 2.5 2.4
DATE 15 0.3% 2 13.3% 2 14.8 25.9
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
ADDED 382 7.3% 283 74.1% 4 8.8 14.6
AUTHOR AFFIL. 35 0.7% 12 34.3% 10 41.8 109.8
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 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 10 0.2% 0 0.0% 10 15.2 13.8
Other indexes 537 10.2% 158 29.4% 15 2077.7 12349.0
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 1,113 29.0% 426 38.3% 5 773.6 6826.2
Single 2,723 71.0% 448 16.4% 18 920.4 8157.6
PRESENT commands, by type:
MARC 59.2%
OPAC 23.2%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)