MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 10/27/01 through 11/02/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 17,535 479,430
BIO88 3,285 58,209
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 274 5,665
2-4 a.m. 415 4,180
4-6 a.m. 138 4,443
6-8 a.m. 250 7,097
8-10 a.m. 1,444 40,047
10-12 a.m. 3,215 86,093
12-2 p.m. 3,796 89,751
2-4 p.m. 4,298 120,018
4-6 p.m. 3,362 88,948
6-8 p.m. 1,846 44,572
8-10 p.m. 1,012 27,327
10-12 p.m. 770 19,498
__________ _____________ _________________
Total: 20,820 537,639
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 589
Irvine 2
Los Angeles 50
Riverside 77
San Diego 9
San Francisco 6
Santa Barbara 112
Santa Cruz 49
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 0
Searchlight 1,716
Other - UC 17,729
Other-Network UC 219
_____
20,820
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,999
Davis 10,475
Irvine 57
Los Angeles 403
Riverside 3,550
San Diego 100
San Francisco 195
Santa Barbara 788
Santa Cruz 1,147
Lawrence Berkeley 0
Lawrence Livermore 16
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 508,360
Other-Network UC 8,549
_____
537,639
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 7.5
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) 21:41
Average session length (minutes:seconds) 20:12
Longest session recorded (minutes:seconds) 304:54
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 948.7
Retrievals per search - standard deviation 12874
Percent of searches completed with 0 results 20.1%
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 20,820 13.6%
PRESENT 122,319 80.2%
INIT or CLOSE 8,534 5.6%
OTHER 908 0.6%
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 5,957 20.5% 1,053 17.7% 10 68.7 409.6
TITLE WORD 2,967 10.2% 1,123 37.8% 3 234.7 2402.8
EXACT TITLE 197 0.7% 118 59.9% 1 18.3 91.5
KEYWORD 12,478 42.9% 2,035 16.3% 24 1401.6 16537.5
JOURNAL 1,289 4.4% 394 30.6% 5 1968.0 13209.1
EXACT JOURNAL 248 0.9% 117 47.2% 439 3654.4 11754.4
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 0.0% 3 100% 0 0.0 0.0
BIOSYS NAMES 9 0.0% 4 44.4% 1 44.0 78.1
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 56 0.2% 9 16.1% 32 188.1 381.4
MAJ CONCEPT CDES 5 0.0% 0 0.0% 126343 151751 156804
CONCEPT CODES 11 0.0% 1 9.1% 182 223.7 294.6
PUBLICATION TYPE 85 0.3% 11 12.9% 9 189.0 559.7
DATE 90 0.3% 12 13.3% 6 17.7 42.8
LANGUAGE 41 0.1% 4 9.8% 10 113.2 225.0
ADDED 930 3.2% 764 82.1% 4 11.4 21.7
AUTHOR AFFIL. 97 0.3% 31 32.0% 11 67.0 279.7
ACCESSION NO. 2 0.0% 2 100% 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 1 0.0% 0 0.0% 235 235.0 0.0
AT 241 0.8% 40 16.6% 13 182.2 679.6
Other indexes 4,362 15.0% 800 18.3% 22 1203.4 9401.3
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 6,431 30.9% 1,889 29.4% 8 569.4 5229.5
Single 14,389 69.1% 2,295 15.9% 23 1419.3 16567.4
PRESENT commands, by type:
MARC 50.0%
OPAC 32.9%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)