MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/29/01 through 01/04/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 7,587 191,957
BIO88 1,130 15,399
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 342 6,481
2-4 a.m. 573 6,415
4-6 a.m. 110 1,632
6-8 a.m. 367 6,916
8-10 a.m. 476 13,844
10-12 a.m. 1,299 31,150
12-2 p.m. 1,422 37,640
2-4 p.m. 1,765 43,555
4-6 p.m. 1,252 31,101
6-8 p.m. 473 11,886
8-10 p.m. 366 10,585
10-12 p.m. 272 6,151
__________ _____________ _________________
Total: 8,717 207,356
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 174
Davis 685
Irvine 0
Los Angeles 35
Riverside 99
San Diego 14
San Francisco 5
Santa Barbara 13
Santa Cruz 166
Lawrence Berkeley 0
Lawrence Livermore 5
Los Alamos 0
MELWEB 5,683
Searchlight 1,570
Other - UC 34
Other-Network UC 234
_____
8,717
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,161
Davis 10,688
Irvine 0
Los Angeles 491
Riverside 1,956
San Diego 418
San Francisco 204
Santa Barbara 419
Santa Cruz 638
Lawrence Berkeley 0
Lawrence Livermore 226
Los Alamos 0
MELWEB 169,425
Searchlight 17,496
Other - UC 135
Other-Network UC 3,099
_____
207,356
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.7
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 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:01
Average session length (minutes:seconds) 18:26
Longest session recorded (minutes:seconds) 266:11
Average number of searches completed per session 0.0
Retrievals per search - median 4.0
Retrievals per search - average 545.5
Retrievals per search - standard deviation 10091
Percent of searches completed with 0 results 24.3%
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 8,717 13.0%
PRESENT 54,752 81.6%
INIT or CLOSE 3,428 5.1%
OTHER 209 0.3%
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 3,390 27.8% 554 16.3% 8 172.7 2761.2
TITLE WORD 1,786 14.7% 890 49.8% 2 459.8 5353.3
EXACT TITLE 77 0.6% 37 48.1% 1 63.4 387.6
KEYWORD 4,154 34.1% 800 19.3% 15 1021.6 15715.3
JOURNAL 415 3.4% 106 25.5% 3 1445.0 8434.1
EXACT JOURNAL 95 0.8% 45 47.4% 7 957.4 2247.6
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 0.0% 1 33.3% 2,637 2637.0 3727.9
BIOSYS NAMES 5 0.0% 5 100% 0 0.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 11 0.1% 0 0.0% 8 38.0 46.8
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 3 0.0% 1 33.3% 8,758 8757.5 12245.0
PUBLICATION TYPE 8 0.1% 0 0.0% 62 59.8 51.0
DATE 72 0.6% 21 29.2% 4 50.0 192.2
LANGUAGE 7 0.1% 0 0.0% 92 101.7 123.4
ADDED 1,011 8.3% 811 80.2% 4 12.2 22.3
AUTHOR AFFIL. 65 0.5% 13 20.0% 8 28.5 49.8
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 2 0.0% 0 0.0% 1 1.0 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 23 0.2% 5 21.7% 23 108.3 213.7
Other indexes 1,063 8.7% 184 17.3% 12 278.4 2167.0
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 3,125 35.8% 1,239 39.6% 5 173.8 2932.9
Single 5,592 64.1% 881 15.8% 16 939.8 13589.1
PRESENT commands, by type:
MARC 54.6%
OPAC 27.9%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)