MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/01 through 09/07/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 10,015 253,569
BIO88 1,485 24,363
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 442 4,225
2-4 a.m. 706 2,887
4-6 a.m. 107 1,381
6-8 a.m. 205 5,651
8-10 a.m. 886 20,821
10-12 a.m. 1,738 49,611
12-2 p.m. 1,946 56,052
2-4 p.m. 2,074 54,089
4-6 p.m. 1,669 46,004
6-8 p.m. 868 21,313
8-10 p.m. 610 9,133
10-12 p.m. 249 6,765
__________ _____________ _________________
Total: 11,500 277,932
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 195
Davis 367
Irvine 18
Los Angeles 176
Riverside 68
San Diego 37
San Francisco 9
Santa Barbara 169
Santa Cruz 52
Lawrence Berkeley 20
Lawrence Livermore 2
Los Alamos 0
MELWEB 0
Searchlight 520
Other - UC 9,674
Other-Network UC 193
_____
11,500
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,557
Davis 7,125
Irvine 190
Los Angeles 2,875
Riverside 714
San Diego 166
San Francisco 159
Santa Barbara 1,155
Santa Cruz 635
Lawrence Berkeley 134
Lawrence Livermore 102
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 257,591
Other-Network UC 3,529
_____
277,932
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
Standard deviation in seconds 6.8
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) 21:25
Average session length (minutes:seconds) 20:04
Longest session recorded (minutes:seconds) 198:36
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 675.1
Retrievals per search - standard deviation 9479.5
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 11,500 13.8%
PRESENT 67,409 80.7%
INIT or CLOSE 4,343 5.2%
OTHER 252 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 4,202 25.3% 696 16.6% 8 127.5 1507.5
TITLE WORD 2,188 13.2% 1,174 53.7% 5 435.5 2213.4
EXACT TITLE 90 0.5% 59 65.6% 1 46.3 163.7
KEYWORD 5,646 34.0% 1,130 20.0% 22 1240.9 13997.8
JOURNAL 734 4.4% 231 31.5% 3 1798.1 11235.4
EXACT JOURNAL 173 1.0% 57 32.9% 114 2234.5 8082.2
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 0.0% 3 100% 0 0.0 0.0
BIOSYS NAMES 3 0.0% 3 100% 0 0.0 0.0
BIOSYS CODES 1 0.0% 1 100% 0 0.0 0.0
SUPERTAXA 18 0.1% 4 22.2% 12 45.1 79.0
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 15 0.1% 4 26.7% 5 49.8 88.4
DATE 203 1.2% 17 8.4% 6 493.3 1091.7
LANGUAGE 5 0.0% 2 40.0% 2 11.7 17.6
ADDED 1,457 8.8% 1,216 83.5% 3 7.9 12.9
AUTHOR AFFIL. 120 0.7% 45 37.5% 5 36.4 94.0
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 41 0.2% 7 17.1% 29 1137.6 3087.1
Other indexes 1,684 10.2% 352 20.9% 17 1203.4 10224.5
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 4,230 36.8% 1,768 41.8% 6 517.2 5395.2
Single 7,270 63.2% 1,177 16.2% 20 1065.3 12548.9
PRESENT commands, by type:
MARC 54.2%
OPAC 26.5%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)