MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/16/00 through 12/22/00
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 6,761 196,302
BIO88 1,193 22,730
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 279 5,362
2-4 a.m. 221 3,311
4-6 a.m. 150 2,995
6-8 a.m. 244 10,713
8-10 a.m. 660 21,637
10-12 a.m. 1,511 38,235
12-2 p.m. 1,421 36,644
2-4 p.m. 1,556 46,540
4-6 p.m. 1,078 30,632
6-8 p.m. 423 9,715
8-10 p.m. 240 8,151
10-12 p.m. 171 5,097
__________ _____________ _________________
Total: 7,954 219,032
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 223
Davis 345
Irvine 7
Los Angeles 263
Riverside 53
San Diego 30
San Francisco 13
Santa Barbara 6
Santa Cruz 99
Lawrence Berkeley 13
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,257
Searchlight 1,409
Other - UC 29
Other-Network UC 207
_____
7,954
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,712
Davis 7,935
Irvine 85
Los Angeles 8,729
Riverside 3,899
San Diego 630
San Francisco 254
Santa Barbara 61
Santa Cruz 1,217
Lawrence Berkeley 503
Lawrence Livermore 0
Los Alamos 0
MELWEB 164,962
Searchlight 21,171
Other - UC 480
Other-Network UC 6,394
_____
219,032
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 3.9
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) 20:43
Average session length (minutes:seconds) 17:46
Longest session recorded (minutes:seconds) 160:07
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 508.5
Retrievals per search - standard deviation 4521.2
Percent of searches completed with 0 results 21.1%
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 7,954 10.9%
PRESENT 61,188 83.8%
INIT or CLOSE 3,349 4.6%
OTHER 541 0.7%
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 2,948 27.3% 567 19.2% 8 154.4 2405.2
TITLE WORD 973 9.0% 262 26.9% 2 309.3 3048.8
EXACT TITLE 36 0.3% 20 55.6% 1 6.2 11.7
KEYWORD 4,520 41.8% 917 20.3% 19 794.9 5172.8
JOURNAL 421 3.9% 171 40.6% 14 1489.5 6331.4
EXACT JOURNAL 61 0.6% 40 65.6% 22 274.5 502.1
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
BIOSYS NAMES 9 0.1% 6 66.7% 8 90.3 144.3
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 15 0.1% 3 20.0% 9 50.6 75.8
MAJ CONCEPT CDES 1 0.0% 0 0.0% 73,704 73704.0 0.0
CONCEPT CODES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 3 0.0% 0 0.0% 49 80.3 98.8
DATE 26 0.2% 1 3.8% 5 40.5 109.3
LANGUAGE 7 0.1% 1 14.3% 28 168.0 329.8
ADDED 586 5.4% 324 55.3% 3 13.0 44.9
AUTHOR AFFIL. 33 0.3% 9 27.3% 24 27.2 21.6
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 41 0.4% 11 26.8% 15 74.9 154.9
Other indexes 1,137 10.5% 296 26.0% 11 938.4 8249.9
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 2,283 28.7% 702 30.7% 5 388.9 4208.3
Single 5,671 71.3% 980 17.3% 19 731.1 5343.2
PRESENT commands, by type:
MARC 61.1%
OPAC 23.9%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)