MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/10/01 through 11/16/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 19,832 507,577
BIO88 3,600 57,449
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 727 10,989
2-4 a.m. 552 4,064
4-6 a.m. 104 3,327
6-8 a.m. 570 12,071
8-10 a.m. 1,421 31,219
10-12 a.m. 3,570 91,012
12-2 p.m. 4,119 104,341
2-4 p.m. 4,752 121,006
4-6 p.m. 3,558 94,047
6-8 p.m. 1,827 41,965
8-10 p.m. 1,244 31,102
10-12 p.m. 988 19,883
__________ _____________ _________________
Total: 23,432 565,026
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 384
Davis 297
Irvine 5
Los Angeles 219
Riverside 134
San Diego 94
San Francisco 12
Santa Barbara 78
Santa Cruz 66
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,800
Other - UC 20,066
Other-Network UC 277
_____
23,432
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,221
Davis 6,155
Irvine 135
Los Angeles 2,238
Riverside 1,993
San Diego 797
San Francisco 90
Santa Barbara 789
Santa Cruz 1,396
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 542,616
Other-Network UC 4,596
_____
565,026
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
Standard deviation in seconds 6.9
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) 21:19
Longest session recorded (minutes:seconds) 206:46
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 781.0
Retrievals per search - standard deviation 8635.7
Percent of searches completed with 0 results 22.6%
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 23,432 14.6%
PRESENT 127,674 79.6%
INIT or CLOSE 8,777 5.5%
OTHER 564 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 6,036 18.0% 1,172 19.4% 10 124.3 1127.9
TITLE WORD 3,949 11.8% 1,907 48.3% 4 360.0 3698.1
EXACT TITLE 222 0.7% 128 57.7% 1 3.1 10.1
KEYWORD 14,182 42.3% 2,328 16.4% 21 1119.4 10565.0
JOURNAL 1,319 3.9% 536 40.6% 6 3040.8 17797.2
EXACT JOURNAL 264 0.8% 105 39.8% 115 1261.5 3068.8
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 11 0.0% 10 90.9% 1,305 1305.0 0.0
BIOSYS NAMES 13 0.0% 12 92.3% 1 1.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 44 0.1% 8 18.2% 11 47.4 154.5
MAJ CONCEPT CDES 3 0.0% 0 0.0% 106863 96305.0 73863.1
CONCEPT CODES 1 0.0% 0 0.0% 9,191 9191.0 0.0
PUBLICATION TYPE 101 0.3% 21 20.8% 16 404.5 1600.4
DATE 92 0.3% 17 18.5% 10 426.8 2707.5
LANGUAGE 100 0.3% 14 14.0% 19 404.0 1543.3
ADDED 1,487 4.4% 1,294 87.0% 4 9.4 16.0
AUTHOR AFFIL. 95 0.3% 48 50.5% 13 69.2 191.6
ACCESSION NO. 2 0.0% 2 100% 0 0.0 0.0
ISSN 3 0.0% 2 66.7% 85 85.0 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 14 0.0% 1 7.1% 16 270.2 319.7
AT 342 1.0% 93 27.2% 20 277.3 1239.5
Other indexes 5,245 15.6% 979 18.7% 23 1318.9 9511.5
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 7,597 32.4% 2,665 35.1% 10 754.3 7067.1
Single 15,835 67.6% 2,635 16.6% 19 1104.6 10647.9
PRESENT commands, by type:
MARC 47.7%
OPAC 34.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)