MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/01 through 12/07/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 17,467 417,879
BIO88 3,676 49,118
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 675 6,466
2-4 a.m. 427 2,444
4-6 a.m. 163 2,273
6-8 a.m. 554 7,924
8-10 a.m. 1,339 34,813
10-12 a.m. 2,914 60,462
12-2 p.m. 3,293 70,834
2-4 p.m. 4,141 101,069
4-6 p.m. 3,394 78,575
6-8 p.m. 1,907 47,295
8-10 p.m. 1,346 30,028
10-12 p.m. 990 24,814
__________ _____________ _________________
Total: 21,143 466,997
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 322
Davis 887
Irvine 54
Los Angeles 49
Riverside 114
San Diego 68
San Francisco 1
Santa Barbara 88
Santa Cruz 481
Lawrence Berkeley 7
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,710
Other - UC 17,100
Other-Network UC 262
_____
21,143
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,833
Davis 12,143
Irvine 525
Los Angeles 559
Riverside 1,785
San Diego 772
San Francisco 12
Santa Barbara 703
Santa Cruz 4,502
Lawrence Berkeley 85
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 438,183
Other-Network UC 3,895
_____
466,997
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 8.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:17
Average session length (minutes:seconds) 19:17
Longest session recorded (minutes:seconds) 191:31
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 910.5
Retrievals per search - standard deviation 14045
Percent of searches completed with 0 results 22.8%
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 21,143 14.8%
PRESENT 111,961 78.6%
INIT or CLOSE 8,529 6.0%
OTHER 758 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 6,328 22.1% 1,238 19.6% 9 193.5 2543.2
TITLE WORD 3,355 11.7% 1,286 38.3% 2 188.7 3326.6
EXACT TITLE 217 0.8% 113 52.1% 1 276.8 2070.1
KEYWORD 12,317 43.1% 2,440 19.8% 19 1216.5 10483.1
JOURNAL 1,090 3.8% 385 35.3% 6 4728.2 60531.1
EXACT JOURNAL 246 0.9% 115 46.7% 9 1630.1 6913.4
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 6 0.0% 6 100% 0 0.0 0.0
BIOSYS NAMES 27 0.1% 15 55.6% 15 5719.9 13327.3
BIOSYS CODES 2 0.0% 1 50.0% 226 226.0 0.0
SUPERTAXA 46 0.2% 5 10.9% 32 145.9 317.1
MAJ CONCEPT CDES 5 0.0% 0 0.0% 26,601 46740.2 55225.9
CONCEPT CODES 11 0.0% 1 9.1% 425 574.0 638.7
PUBLICATION TYPE 34 0.1% 3 8.8% 19 584.2 2843.0
DATE 129 0.5% 18 14.0% 5 68.0 251.5
LANGUAGE 47 0.2% 10 21.3% 11 607.0 2603.7
ADDED 1,043 3.6% 830 79.6% 3 5.3 8.9
AUTHOR AFFIL. 101 0.4% 32 31.7% 11 88.8 601.3
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 7 0.0% 1 14.3% 626 3330.0 6166.6
AT 221 0.8% 51 23.1% 11 806.0 6206.7
Other indexes 3,344 11.7% 666 19.9% 20 1843.7 15173.2
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 6,046 28.6% 1,962 32.4% 6 657.4 7311.4
Single 15,097 71.4% 2,860 18.9% 18 1353.8 17957.2
PRESENT commands, by type:
MARC 53.5%
OPAC 27.8%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)