MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/16/02 through 03/22/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 16,773 436,247
BIO88 3,322 50,000
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 863 12,310
2-4 a.m. 481 7,222
4-6 a.m. 127 1,913
6-8 a.m. 388 13,709
8-10 a.m. 1,403 40,842
10-12 a.m. 3,267 77,543
12-2 p.m. 3,586 92,085
2-4 p.m. 3,771 95,214
4-6 p.m. 2,926 67,714
6-8 p.m. 1,359 31,651
8-10 p.m. 1,146 27,229
10-12 p.m. 778 18,815
__________ _____________ _________________
Total: 20,095 486,247
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 273
Davis 733
Irvine 43
Los Angeles 91
Riverside 97
San Diego 162
San Francisco 0
Santa Barbara 210
Santa Cruz 44
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 0
MELWEB 15,063
Searchlight 2,902
Other - UC 36
Other-Network UC 439
_____
20,095
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,545
Davis 11,929
Irvine 490
Los Angeles 1,669
Riverside 1,738
San Diego 2,349
San Francisco 0
Santa Barbara 1,767
Santa Cruz 488
Lawrence Berkeley 149
Lawrence Livermore 0
Los Alamos 0
MELWEB 433,179
Searchlight 20,105
Other - UC 753
Other-Network UC 7,086
_____
486,247
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 14.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:20
Average session length (minutes:seconds) 19:30
Longest session recorded (minutes:seconds) 203:44
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 772.3
Retrievals per search - standard deviation 8629.1
Percent of searches completed with 0 results 21.1%
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 20,095 13.5%
PRESENT 119,369 80.3%
INIT or CLOSE 8,374 5.6%
OTHER 761 0.5%
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 6,580 24.8% 1,109 16.9% 10 130.3 1350.7
TITLE WORD 2,920 11.0% 1,125 38.5% 3 189.8 2217.4
EXACT TITLE 155 0.6% 88 56.8% 1 1.8 5.3
KEYWORD 11,582 43.7% 2,171 18.7% 20 1061.0 9743.0
JOURNAL 1,114 4.2% 359 32.2% 4 2505.8 16064.7
EXACT JOURNAL 192 0.7% 63 32.8% 41 3036.7 9411.5
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 4 0.0% 2 50.0% 39 39.0 0.0
BIOSYS NAMES 18 0.1% 15 83.3% 13 25.0 26.2
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 34 0.1% 2 5.9% 16 202.8 482.6
MAJ CONCEPT CDES 3 0.0% 0 0.0% 107319 133766 148426
CONCEPT CODES 1 0.0% 0 0.0% 189 189.0 0.0
PUBLICATION TYPE 39 0.1% 7 17.9% 7 167.4 632.3
DATE 107 0.4% 20 18.7% 8 87.6 224.2
LANGUAGE 14 0.1% 3 21.4% 48 182.5 348.5
ADDED 975 3.7% 708 72.6% 5 12.9 28.1
AUTHOR AFFIL. 105 0.4% 28 26.7% 8 246.2 1942.5
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 2 0.0% 1 50.0% 2 2.0 0.0
AT 102 0.4% 17 16.7% 22 1846.9 13226.1
Other indexes 2,568 9.7% 422 16.4% 22 1594.9 13371.0
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 5,482 27.3% 1,668 30.4% 7 405.0 5491.7
Single 14,613 72.7% 2,574 17.6% 21 1160.8 10692.7
PRESENT commands, by type:
MARC 53.3%
OPAC 26.0%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)