MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 09/29/01 through 10/05/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 15,342 361,341
BIO88 2,467 35,257
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 890 12,438
2-4 a.m. 227 1,975
4-6 a.m. 72 1,785
6-8 a.m. 503 5,732
8-10 a.m. 1,454 30,708
10-12 a.m. 3,182 69,590
12-2 p.m. 2,972 69,685
2-4 p.m. 3,144 76,491
4-6 p.m. 2,732 67,835
6-8 p.m. 1,241 27,822
8-10 p.m. 831 19,311
10-12 p.m. 561 13,226
__________ _____________ _________________
Total: 17,809 396,598
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 275
Davis 578
Irvine 2
Los Angeles 43
Riverside 85
San Diego 52
San Francisco 8
Santa Barbara 71
Santa Cruz 211
Lawrence Berkeley 7
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,071
Other - UC 15,026
Other-Network UC 380
_____
17,809
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,138
Davis 7,551
Irvine 48
Los Angeles 515
Riverside 1,665
San Diego 1,990
San Francisco 68
Santa Barbara 1,040
Santa Cruz 1,777
Lawrence Berkeley 71
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 371,050
Other-Network UC 5,685
_____
396,598
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 9.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:48
Average session length (minutes:seconds) 20:42
Longest session recorded (minutes:seconds) 161:50
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1127.6
Retrievals per search - standard deviation 13224
Percent of searches completed with 0 results 22.6%
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 17,809 14.6%
PRESENT 97,254 79.5%
INIT or CLOSE 7,041 5.8%
OTHER 196 0.2%
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 5,378 22.2% 956 17.8% 10 117.3 1081.6
TITLE WORD 2,495 10.3% 1,170 46.9% 3 265.8 1688.6
EXACT TITLE 127 0.5% 69 54.3% 1 12.7 54.3
KEYWORD 10,440 43.1% 1,924 18.4% 19 1860.1 18092.4
JOURNAL 956 3.9% 346 36.2% 6 2871.0 14254.1
EXACT JOURNAL 228 0.9% 101 44.3% 120 1807.3 3856.9
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 16 0.1% 11 68.8% 19 514.4 1122.9
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 37 0.2% 4 10.8% 17 44.7 85.3
MAJ CONCEPT CDES 6 0.0% 0 0.0% 91,962 108077 54576.7
CONCEPT CODES 6 0.0% 0 0.0% 27 101.8 137.6
PUBLICATION TYPE 26 0.1% 5 19.2% 10 22.8 39.6
DATE 115 0.5% 17 14.8% 6 223.3 1816.5
LANGUAGE 37 0.2% 7 18.9% 13 135.0 570.8
ADDED 1,227 5.1% 1,018 83.0% 4 11.2 22.1
AUTHOR AFFIL. 134 0.6% 43 32.1% 6 34.2 114.5
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 9 0.0% 0 0.0% 4 76.1 215.2
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% 12 12.0 0.0
AT 128 0.5% 38 29.7% 18 1282.3 5370.8
Other indexes 2,860 11.8% 578 20.2% 23 1260.4 8791.5
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 5,203 29.2% 1,873 36.0% 7 528.4 4583.6
Single 12,606 70.8% 2,147 17.0% 21 1751.7 17032.4
PRESENT commands, by type:
MARC 54.0%
OPAC 26.8%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)