MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/30/01 through 07/06/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 9,909 244,592
BIO88 1,745 24,861
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 642 10,050
2-4 a.m. 324 7,155
4-6 a.m. 108 881
6-8 a.m. 265 5,998
8-10 a.m. 825 20,188
10-12 a.m. 1,666 37,754
12-2 p.m. 2,083 49,030
2-4 p.m. 2,662 61,339
4-6 p.m. 1,835 47,812
6-8 p.m. 642 14,191
8-10 p.m. 379 9,340
10-12 p.m. 223 5,715
__________ _____________ _________________
Total: 11,654 269,453
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 272
Davis 690
Irvine 15
Los Angeles 311
Riverside 33
San Diego 15
San Francisco 13
Santa Barbara 17
Santa Cruz 37
Lawrence Berkeley 5
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 824
Other - UC 9,295
Other-Network UC 127
_____
11,654
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,426
Davis 6,286
Irvine 64
Los Angeles 1,975
Riverside 705
San Diego 61
San Francisco 244
Santa Barbara 126
Santa Cruz 464
Lawrence Berkeley 331
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 252,045
Other-Network UC 3,726
_____
269,453
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 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:04
Average session length (minutes:seconds) 19:01
Longest session recorded (minutes:seconds) 223:33
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 574.9
Retrievals per search - standard deviation 6079.3
Percent of searches completed with 0 results 26.3%
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 11,654 14.2%
PRESENT 65,527 79.9%
INIT or CLOSE 4,494 5.5%
OTHER 378 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 3,932 23.9% 737 18.7% 9 91.9 1010.4
TITLE WORD 2,349 14.3% 1,138 48.4% 3 118.7 864.9
EXACT TITLE 112 0.7% 63 56.3% 1 70.0 252.2
KEYWORD 6,043 36.7% 1,277 21.1% 20 939.1 7030.0
JOURNAL 625 3.8% 225 36.0% 6 3185.6 16441.2
EXACT JOURNAL 142 0.9% 56 39.4% 30 1230.9 2540.6
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 0 0.0% 497 497.0 536.0
BIOSYS NAMES 11 0.1% 7 63.6% 69 91.8 103.4
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 19 0.1% 0 0.0% 14 404.6 1217.2
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 1 0.0% 0 0.0% 81 81.0 0.0
PUBLICATION TYPE 12 0.1% 1 8.3% 3 542.7 1578.4
DATE 29 0.2% 4 13.8% 4 38.8 97.7
LANGUAGE 9 0.1% 1 11.1% 9 19.8 32.7
ADDED 1,318 8.0% 1,094 83.0% 3 16.6 60.0
AUTHOR AFFIL. 88 0.5% 27 30.7% 5 257.2 1344.7
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 0 0.0% 0 0.0% 0 0.0 0.0
AT 115 0.7% 16 13.9% 14 279.0 1115.0
Other indexes 1,646 10.0% 427 25.9% 21 991.9 8763.8
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 3,988 34.2% 1,658 41.6% 5 244.7 1998.1
Single 7,666 65.8% 1,402 18.3% 20 978.6 8180.1
PRESENT commands, by type:
MARC 54.1%
OPAC 30.0%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)