MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 10/06/01 through 10/12/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 22,483 561,675
BIO88 2,799 45,692
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,206 21,352
2-4 a.m. 565 3,682
4-6 a.m. 67 880
6-8 a.m. 552 8,782
8-10 a.m. 1,638 39,180
10-12 a.m. 3,431 90,845
12-2 p.m. 3,926 107,788
2-4 p.m. 4,348 97,494
4-6 p.m. 3,737 98,039
6-8 p.m. 2,568 55,423
8-10 p.m. 1,825 44,977
10-12 p.m. 1,419 38,925
__________ _____________ _________________
Total: 25,282 607,367
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 233
Davis 408
Irvine 0
Los Angeles 100
Riverside 60
San Diego 74
San Francisco 3
Santa Barbara 122
Santa Cruz 59
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,638
Other - UC 22,340
Other-Network UC 244
_____
25,282
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,848
Davis 11,157
Irvine 0
Los Angeles 1,315
Riverside 1,129
San Diego 4,127
San Francisco 84
Santa Barbara 1,597
Santa Cruz 473
Lawrence Berkeley 322
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 579,196
Other-Network UC 3,119
_____
607,367
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 7.7
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) 22:05
Average session length (minutes:seconds) 21:56
Longest session recorded (minutes:seconds) 187:40
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 2192.0
Retrievals per search - standard deviation 22608
Percent of searches completed with 0 results 23.3%
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 25,282 14.9%
PRESENT 134,963 79.5%
INIT or CLOSE 8,951 5.3%
OTHER 607 0.4%
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 5,229 15.1% 846 16.2% 11 96.5 706.7
TITLE WORD 4,090 11.8% 2,269 55.5% 5 562.5 6266.8
EXACT TITLE 171 0.5% 106 62.0% 1 1787.0 13743.5
KEYWORD 16,509 47.8% 2,762 16.7% 31 3525.8 29251.6
JOURNAL 993 2.9% 345 34.7% 7 2054.2 12361.7
EXACT JOURNAL 292 0.8% 114 39.0% 12 1723.6 5491.8
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% 14 73.7% 7 48.8 81.2
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 63 0.2% 12 19.0% 17 469.9 1939.2
MAJ CONCEPT CDES 1 0.0% 0 0.0% 63,037 63037.0 0.0
CONCEPT CODES 1 0.0% 0 0.0% 110608 110608 0.0
PUBLICATION TYPE 60 0.2% 14 23.3% 9 331.3 1689.6
DATE 47 0.1% 7 14.9% 5 39.2 116.9
LANGUAGE 28 0.1% 6 21.4% 30 1135.5 3226.8
ADDED 2,235 6.5% 2,044 91.5% 5 11.8 21.1
AUTHOR AFFIL. 114 0.3% 34 29.8% 14 167.2 543.6
ACCESSION NO. 1 0.0% 1 100% 0 0.0 0.0
ISSN 3 0.0% 3 100% 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 6 0.0% 1 16.7% 29 2309.2 5108.2
AT 140 0.4% 26 18.6% 14 306.9 1404.2
Other indexes 4,513 13.1% 813 18.0% 28 3231.7 18962.0
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 7,190 28.4% 2,996 41.7% 9 969.7 6626.6
Single 18,092 71.6% 2,886 16.0% 30 3377.0 28879.4
PRESENT commands, by type:
MARC 49.7%
OPAC 25.0%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)