MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/02 through 06/07/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 18,523 429,043
BIO88 3,825 61,273
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 798 10,091
2-4 a.m. 335 3,101
4-6 a.m. 112 2,233
6-8 a.m. 566 7,102
8-10 a.m. 1,396 29,427
10-12 a.m. 3,241 69,450
12-2 p.m. 3,726 88,238
2-4 p.m. 4,588 105,792
4-6 p.m. 3,471 75,786
6-8 p.m. 1,653 44,366
8-10 p.m. 1,470 32,969
10-12 p.m. 992 21,761
__________ _____________ _________________
Total: 22,348 490,316
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 235
Davis 1,662
Irvine 110
Los Angeles 90
Riverside 105
San Diego 211
San Francisco 2
Santa Barbara 116
Santa Cruz 347
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 15,645
Searchlight 3,524
Other - UC 10
Other-Network UC 290
_____
22,348
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,492
Davis 25,870
Irvine 1,286
Los Angeles 2,210
Riverside 4,217
San Diego 2,160
San Francisco 29
Santa Barbara 796
Santa Cruz 2,532
Lawrence Berkeley 38
Lawrence Livermore 0
Los Alamos 0
MELWEB 435,932
Searchlight 6,514
Other - UC 175
Other-Network UC 5,065
_____
490,316
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 6.6
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) 21:09
Average session length (minutes:seconds) 18:45
Longest session recorded (minutes:seconds) 202:51
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 859.1
Retrievals per search - standard deviation 11432
Percent of searches completed with 0 results 22.1%
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 22,348 13.5%
PRESENT 133,201 80.7%
INIT or CLOSE 9,291 5.6%
OTHER 201 0.1%
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 6,896 23.2% 1,211 17.6% 8 118.7 1261.6
TITLE WORD 3,624 12.2% 1,204 33.2% 3 630.0 13889.1
EXACT TITLE 195 0.7% 119 61.0% 1 3.5 10.9
KEYWORD 12,943 43.6% 2,645 20.4% 21 1331.5 13973.0
JOURNAL 1,145 3.9% 412 36.0% 6 3519.2 20934.8
EXACT JOURNAL 239 0.8% 110 46.0% 28 1519.1 3940.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 1 50.0% 1 1.0 0.0
BIOSYS NAMES 16 0.1% 9 56.3% 9 44.6 57.9
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 60 0.2% 13 21.7% 15 1261.3 6727.2
MAJ CONCEPT CDES 1 0.0% 0 0.0% 40,422 40422.0 0.0
CONCEPT CODES 8 0.0% 0 0.0% 21 15623.3 30129.2
PUBLICATION TYPE 33 0.1% 3 9.1% 12 661.6 1823.4
DATE 113 0.4% 24 21.2% 7 88.6 345.3
LANGUAGE 72 0.2% 11 15.3% 11 894.5 5869.1
ADDED 871 2.9% 688 79.0% 2 22.4 229.9
AUTHOR AFFIL. 193 0.7% 48 24.9% 17 47.4 98.0
ACCESSION NO. 1 0.0% 1 100% 0 0.0 0.0
ISSN 2 0.0% 2 100% 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 0 0.0% 0 0.0% 0 0.0 0.0
AT 149 0.5% 29 19.5% 19 651.0 2439.1
Other indexes 3,127 10.5% 590 18.9% 14 849.4 8860.5
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 6,095 27.3% 1,831 30.0% 6 392.3 5018.5
Single 16,253 72.7% 3,116 19.2% 20 1334.1 14614.3
PRESENT commands, by type:
MARC 57.9%
OPAC 29.0%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)