MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/15/01 through 12/21/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 9,419 215,222
BIO88 1,336 20,276
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 626 7,297
2-4 a.m. 279 1,136
4-6 a.m. 57 2,377
6-8 a.m. 429 3,811
8-10 a.m. 767 17,809
10-12 a.m. 1,889 39,234
12-2 p.m. 1,863 42,924
2-4 p.m. 2,025 46,077
4-6 p.m. 1,472 37,293
6-8 p.m. 706 16,065
8-10 p.m. 417 15,460
10-12 p.m. 225 6,015
__________ _____________ _________________
Total: 10,755 235,498
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 288
Davis 533
Irvine 14
Los Angeles 17
Riverside 241
San Diego 61
San Francisco 11
Santa Barbara 110
Santa Cruz 328
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 324
Other - UC 8,654
Other-Network UC 174
_____
10,755
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,052
Davis 7,756
Irvine 58
Los Angeles 925
Riverside 2,120
San Diego 920
San Francisco 682
Santa Barbara 886
Santa Cruz 1,389
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 215,512
Other-Network UC 2,198
_____
235,498
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.1
Standard deviation in seconds 8.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:21
Average session length (minutes:seconds) 19:35
Longest session recorded (minutes:seconds) 203:58
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 580.1
Retrievals per search - standard deviation 7157.4
Percent of searches completed with 0 results 24.1%
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 10,755 14.0%
PRESENT 61,803 80.4%
INIT or CLOSE 4,061 5.3%
OTHER 269 0.3%
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 4,176 28.1% 771 18.5% 8 105.3 1155.4
TITLE WORD 2,081 14.0% 1,062 51.0% 3 178.7 1479.7
EXACT TITLE 260 1.7% 96 36.9% 1 51.4 380.7
KEYWORD 5,063 34.0% 885 17.5% 19 1040.9 8718.2
JOURNAL 502 3.4% 168 33.5% 5 2461.6 14356.6
EXACT JOURNAL 134 0.9% 58 43.3% 82 1205.9 3175.7
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 10 0.1% 9 90.0% 1 1.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 10 0.1% 6 60.0% 8 11.0 10.4
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 1 0.0% 0 0.0% 51 51.0 0.0
PUBLICATION TYPE 9 0.1% 3 33.3% 10 11.0 8.8
DATE 61 0.4% 11 18.0% 6 111.7 436.7
LANGUAGE 4 0.0% 0 0.0% 33 177.5 311.5
ADDED 1,081 7.3% 874 80.8% 3 9.6 17.1
AUTHOR AFFIL. 94 0.6% 29 30.8% 16 207.9 1428.3
ACCESSION NO. 1 0.0% 1 100% 0 0.0 0.0
ISSN 4 0.0% 2 50.0% 2 1.5 0.7
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 29 0.2% 7 24.1% 27 351.9 639.0
Other indexes 1,358 9.1% 212 15.6% 14 1169.2 12989.1
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 3,630 33.8% 1,462 40.3% 5 360.7 4267.9
Single 7,125 66.2% 1,127 15.8% 18 909.9 9220.1
PRESENT commands, by type:
MARC 57.3%
OPAC 24.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)