MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/03/01 through 11/09/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 18,150 496,826
BIO88 3,178 50,942
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 852 17,090
2-4 a.m. 622 5,130
4-6 a.m. 104 3,787
6-8 a.m. 313 8,869
8-10 a.m. 1,511 31,705
10-12 a.m. 3,444 93,509
12-2 p.m. 3,488 90,892
2-4 p.m. 4,155 113,743
4-6 p.m. 3,103 82,803
6-8 p.m. 1,720 46,165
8-10 p.m. 1,167 29,803
10-12 p.m. 849 24,272
__________ _____________ _________________
Total: 21,328 547,768
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 364
Davis 803
Irvine 7
Los Angeles 121
Riverside 32
San Diego 40
San Francisco 2
Santa Barbara 116
Santa Cruz 150
Lawrence Berkeley 14
Lawrence Livermore 2
Los Alamos 0
MELWEB 0
Searchlight 1,516
Other - UC 17,935
Other-Network UC 226
_____
21,328
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 13,794
Davis 11,535
Irvine 25
Los Angeles 1,248
Riverside 431
San Diego 254
San Francisco 1
Santa Barbara 1,240
Santa Cruz 4,503
Lawrence Berkeley 60
Lawrence Livermore 33
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 509,288
Other-Network UC 5,356
_____
547,768
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.1
Standard deviation in seconds 7.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:47
Average session length (minutes:seconds) 20:50
Longest session recorded (minutes:seconds) 227:46
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1029.3
Retrievals per search - standard deviation 18807
Percent of searches completed with 0 results 21.1%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 21,328 12.8%
PRESENT 136,523 81.8%
INIT or CLOSE 8,576 5.1%
OTHER 462 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 6,065 20.3% 1,171 19.3% 9 148.9 1653.6
TITLE WORD 3,091 10.3% 1,237 40.0% 3 305.5 4522.6
EXACT TITLE 202 0.7% 125 61.9% 1 70.5 371.5
KEYWORD 12,983 43.4% 2,235 17.2% 21 1502.4 25017.7
JOURNAL 1,211 4.0% 409 33.8% 6 2521.2 16628.7
EXACT JOURNAL 297 1.0% 115 38.7% 45 1893.2 5021.7
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 2 100% 0 0.0 0.0
BIOSYS NAMES 19 0.1% 15 78.9% 3,113 3930.3 4020.2
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 78 0.3% 19 24.4% 18 132.1 234.1
MAJ CONCEPT CDES 4 0.0% 0 0.0% 97,275 136896 126573
CONCEPT CODES 4 0.0% 1 25.0% 1,537 41350.3 70214.7
PUBLICATION TYPE 54 0.2% 11 20.4% 6 69.3 169.3
DATE 95 0.3% 17 17.9% 5 44.3 178.8
LANGUAGE 44 0.1% 17 38.6% 31 134.2 263.0
ADDED 968 3.2% 752 77.7% 4 11.5 21.7
AUTHOR AFFIL. 125 0.4% 44 35.2% 12 167.0 893.7
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 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 3 0.0% 0 0.0% 240 236.7 117.0
AT 247 0.8% 51 20.6% 11 237.1 1060.4
Other indexes 4,408 14.7% 764 17.3% 21 1167.5 11981.4
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 6,834 32.0% 1,975 28.9% 9 518.2 5128.0
Single 14,494 68.0% 2,532 17.5% 21 1624.7 24882.4
PRESENT commands, by type:
MARC 54.2%
OPAC 31.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)