MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/22/01 through 12/28/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 3,613 131,543
BIO88 583 17,836
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 567 4,197
2-4 a.m. 204 1,562
4-6 a.m. 145 1,840
6-8 a.m. 154 7,374
8-10 a.m. 308 7,558
10-12 a.m. 623 44,391
12-2 p.m. 634 25,599
2-4 p.m. 694 22,324
4-6 p.m. 479 21,616
6-8 p.m. 177 5,924
8-10 p.m. 110 4,185
10-12 p.m. 101 2,809
__________ _____________ _________________
Total: 4,196 149,379
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 139
Davis 146
Irvine 25
Los Angeles 5
Riverside 62
San Diego 5
San Francisco 4
Santa Barbara 3
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 272
Other - UC 3,321
Other-Network UC 213
_____
4,196
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1,060
Davis 3,343
Irvine 195
Los Angeles 46
Riverside 693
San Diego 763
San Francisco 36
Santa Barbara 11
Santa Cruz 14
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 140,928
Other-Network UC 2,290
_____
149,379
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 3.5
Standard deviation in seconds 11.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 8:46
Average session length (minutes:seconds) 15:09
Longest session recorded (minutes:seconds) 159:52
Average number of searches completed per session 0.0
Retrievals per search - median 4.0
Retrievals per search - average 497.0
Retrievals per search - standard deviation 5629.3
Percent of searches completed with 0 results 29.1%
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 4,196 10.5%
PRESENT 33,094 83.2%
INIT or CLOSE 1,831 4.6%
OTHER 662 1.7%
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 1,452 24.5% 248 17.1% 10 99.4 474.0
TITLE WORD 765 12.9% 450 58.8% 4 294.7 2405.0
EXACT TITLE 20 0.3% 14 70.0% 1 1.3 0.8
KEYWORD 2,149 36.3% 543 25.3% 19 1020.6 8523.2
JOURNAL 145 2.4% 42 29.0% 4 1338.5 9084.9
EXACT JOURNAL 46 0.8% 20 43.5% 18 584.6 1416.6
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 3 0.1% 3 100% 0 0.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 3 0.1% 1 33.3% 47 47.0 65.1
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 2 0.0% 0 0.0% 4 4.0 4.2
DATE 20 0.3% 3 15.0% 22 502.6 847.8
LANGUAGE 0 0.0% 0 0.0% 0 0.0 0.0
ADDED 749 12.6% 580 77.4% 3 10.7 17.7
AUTHOR AFFIL. 40 0.7% 16 40.0% 24 32.8 36.7
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 8 0.1% 0 0.0% 10 464.4 1280.0
Other indexes 520 8.8% 119 22.9% 8 514.9 3722.3
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 1,499 35.7% 719 48.0% 5 159.0 909.0
Single 2,697 64.3% 501 18.6% 20 893.1 7741.8
PRESENT commands, by type:
MARC 45.7%
OPAC 41.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)