MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/09/00 through 12/15/00
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 9,709 243,900
BIO88 1,932 31,326
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 436 2,387
2-4 a.m. 139 2,392
4-6 a.m. 67 1,762
6-8 a.m. 246 3,469
8-10 a.m. 954 21,842
10-12 a.m. 1,985 52,019
12-2 p.m. 2,142 50,848
2-4 p.m. 2,364 58,846
4-6 p.m. 1,660 41,479
6-8 p.m. 738 19,710
8-10 p.m. 573 11,684
10-12 p.m. 337 8,788
__________ _____________ _________________
Total: 11,641 275,226
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 219
Davis 607
Irvine 10
Los Angeles 129
Riverside 149
San Diego 76
San Francisco 22
Santa Barbara 34
Santa Cruz 78
Lawrence Berkeley 4
Lawrence Livermore 2
Los Alamos 0
MELWEB 8,172
Searchlight 1,652
Other - UC 50
Other-Network UC 437
_____
11,641
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 12,253
Irvine 83
Los Angeles 4,196
Riverside 2,027
San Diego 803
San Francisco 494
Santa Barbara 356
Santa Cruz 1,111
Lawrence Berkeley 153
Lawrence Livermore 3
Los Alamos 0
MELWEB 241,619
Searchlight 2,512
Other - UC 1,322
Other-Network UC 5,582
_____
275,226
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 5.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:01
Average session length (minutes:seconds) 18:48
Longest session recorded (minutes:seconds) 216:45
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1071.9
Retrievals per search - standard deviation 15162
Percent of searches completed with 0 results 19.9%
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 11,641 12.9%
PRESENT 73,694 81.4%
INIT or CLOSE 4,950 5.5%
OTHER 205 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 4,241 26.5% 645 15.2% 10 97.1 1235.0
TITLE WORD 1,493 9.3% 397 26.6% 4 146.1 1016.2
EXACT TITLE 113 0.7% 73 64.6% 1 34.1 108.1
KEYWORD 6,406 40.0% 1,311 20.5% 20 1697.4 20589.6
JOURNAL 687 4.3% 245 35.7% 7 3736.1 18323.4
EXACT JOURNAL 175 1.1% 67 38.3% 9 768.3 1636.5
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 6 0.0% 6 100% 0 0.0 0.0
BIOSYS NAMES 12 0.1% 10 83.3% 8 7.5 2.1
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 23 0.1% 3 13.0% 12 251.6 913.7
MAJ CONCEPT CDES 2 0.0% 0 0.0% 126343 126343 0.0
CONCEPT CODES 10 0.1% 4 40.0% 32 23019.8 56329.0
PUBLICATION TYPE 22 0.1% 5 22.7% 6 264.9 991.8
DATE 63 0.4% 15 23.8% 5 37.6 90.5
LANGUAGE 23 0.1% 3 13.0% 9 53.5 89.0
ADDED 470 2.9% 320 68.1% 1 7.8 23.5
AUTHOR AFFIL. 69 0.4% 24 34.8% 15 24.9 35.5
ACCESSION NO. 2 0.0% 2 100% 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 98 0.6% 21 21.4% 16 652.7 2599.8
Other indexes 2,102 13.1% 428 20.4% 12 1453.7 15136.0
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 3,394 29.2% 956 28.2% 6 477.1 5722.1
Single 8,247 70.8% 1,364 16.5% 21 1643.9 19400.3
PRESENT commands, by type:
MARC 61.1%
OPAC 23.8%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)