MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 08/11/01 through 08/17/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 10,450 266,466
BIO88 1,686 36,387
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 599 1,127
2-4 a.m. 508 7,089
4-6 a.m. 99 2,714
6-8 a.m. 316 3,680
8-10 a.m. 897 24,486
10-12 a.m. 2,061 60,039
12-2 p.m. 1,961 46,867
2-4 p.m. 2,520 63,919
4-6 p.m. 1,743 52,841
6-8 p.m. 716 19,988
8-10 p.m. 492 12,612
10-12 p.m. 224 7,491
__________ _____________ _________________
Total: 12,136 302,853
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 261
Davis 399
Irvine 18
Los Angeles 121
Riverside 53
San Diego 58
San Francisco 9
Santa Barbara 53
Santa Cruz 26
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 621
Other - UC 10,282
Other-Network UC 234
_____
12,136
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,563
Davis 7,993
Irvine 189
Los Angeles 750
Riverside 1,226
San Diego 558
San Francisco 172
Santa Barbara 1,004
Santa Cruz 1,072
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 280,985
Other-Network UC 5,340
_____
302,853
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.0
Standard deviation in seconds 11.4
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) 21:20
Average session length (minutes:seconds) 19:47
Longest session recorded (minutes:seconds) 205:18
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 631.6
Retrievals per search - standard deviation 6285.7
Percent of searches completed with 0 results 26.2%
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 12,136 13.9%
PRESENT 70,012 80.3%
INIT or CLOSE 4,725 5.4%
OTHER 296 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 4,449 26.4% 822 18.5% 10 159.1 3344.6
TITLE WORD 1,982 11.8% 986 49.7% 3 186.7 1808.0
EXACT TITLE 115 0.7% 68 59.1% 1 58.9 190.9
KEYWORD 6,171 36.6% 1,394 22.6% 20 1064.2 7930.1
JOURNAL 694 4.1% 223 32.1% 4 2889.9 15148.6
EXACT JOURNAL 212 1.3% 81 38.2% 101 1762.8 5202.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 7 0.0% 6 85.7% 18 18.0 0.0
BIOSYS NAMES 8 0.0% 7 87.5% 110 110.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 12 0.1% 4 33.3% 43 175.8 373.3
MAJ CONCEPT CDES 3 0.0% 0 0.0% 16,782 79283.0 118074
CONCEPT CODES 2 0.0% 0 0.0% 6 6.0 1.4
PUBLICATION TYPE 4 0.0% 1 25.0% 11 29.0 35.6
DATE 76 0.5% 9 11.8% 7 49.2 130.9
LANGUAGE 7 0.0% 2 28.6% 52 48.2 51.1
ADDED 1,219 7.2% 1,164 95.5% 6 40.0 165.8
AUTHOR AFFIL. 100 0.6% 30 30.0% 17 282.5 1436.0
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 3 0.0% 2 66.7% 1,607 1607.0 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 69 0.4% 13 18.8% 25 97.4 213.9
Other indexes 1,721 10.2% 497 28.9% 20 577.7 3717.9
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 3,962 32.6% 1,731 43.7% 7 308.6 4483.8
Single 8,174 67.4% 1,446 17.7% 20 1036.9 8013.9
PRESENT commands, by type:
MARC 52.8%
OPAC 28.6%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)