MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 07/07/01 through 07/13/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 12,320 307,250
BIO88 2,232 31,484
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 518 2,851
2-4 a.m. 472 2,046
4-6 a.m. 63 1,800
6-8 a.m. 526 8,102
8-10 a.m. 901 21,116
10-12 a.m. 2,354 56,387
12-2 p.m. 2,607 65,457
2-4 p.m. 3,357 76,100
4-6 p.m. 2,005 59,949
6-8 p.m. 889 27,229
8-10 p.m. 578 10,372
10-12 p.m. 282 7,325
__________ _____________ _________________
Total: 14,552 338,734
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 367
Davis 656
Irvine 84
Los Angeles 204
Riverside 112
San Diego 53
San Francisco 22
Santa Barbara 100
Santa Cruz 42
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 6
Searchlight 1,066
Other - UC 11,606
Other-Network UC 233
_____
14,552
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 8,035
Davis 9,082
Irvine 932
Los Angeles 3,071
Riverside 1,911
San Diego 728
San Francisco 253
Santa Barbara 1,201
Santa Cruz 420
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 307,407
Other-Network UC 5,691
_____
338,734
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 7.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:57
Average session length (minutes:seconds) 19:02
Longest session recorded (minutes:seconds) 235:02
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 898.4
Retrievals per search - standard deviation 11372
Percent of searches completed with 0 results 26.0%
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 14,552 13.4%
PRESENT 88,011 80.8%
INIT or CLOSE 5,557 5.1%
OTHER 823 0.8%
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 4,819 23.9% 766 15.9% 9 151.9 2457.6
TITLE WORD 2,825 14.0% 1,548 54.8% 3 408.3 4786.4
EXACT TITLE 86 0.4% 54 62.8% 1 245.4 1164.6
KEYWORD 7,637 37.8% 1,561 20.4% 20 1713.3 16432.3
JOURNAL 699 3.5% 251 35.9% 5 3522.7 20797.4
EXACT JOURNAL 148 0.7% 60 40.5% 33 1113.1 2240.7
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 9 0.0% 5 55.6% 224 210.0 191.8
BIOSYS NAMES 6 0.0% 4 66.7% 501 501.0 678.8
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 12 0.1% 3 25.0% 10 18.1 23.9
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 2 0.0% 0 0.0% 8 7.5 7.8
PUBLICATION TYPE 19 0.1% 2 10.5% 9 45.1 108.8
DATE 86 0.4% 17 19.8% 6 45.7 137.6
LANGUAGE 6 0.0% 2 33.3% 35 34.3 34.4
ADDED 1,564 7.8% 1,408 90.0% 4 15.0 48.8
AUTHOR AFFIL. 66 0.3% 25 37.9% 12 18.6 17.0
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 2 0.0% 1 50.0% 816 816.0 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 97 0.5% 27 27.8% 19 110.4 433.0
Other indexes 2,095 10.4% 506 24.2% 19 559.2 3156.1
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 4,696 32.3% 2,095 44.6% 5 315.9 3499.8
Single 9,856 67.7% 1,686 17.1% 20 1499.6 15020.8
PRESENT commands, by type:
MARC 57.3%
OPAC 27.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)