MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 09/22/01 through 09/28/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 13,283 336,980
BIO88 1,960 31,388
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 671 6,154
2-4 a.m. 619 5,975
4-6 a.m. 125 2,866
6-8 a.m. 559 9,010
8-10 a.m. 966 22,868
10-12 a.m. 2,139 57,741
12-2 p.m. 2,385 57,084
2-4 p.m. 2,852 72,102
4-6 p.m. 2,307 47,109
6-8 p.m. 1,326 29,903
8-10 p.m. 699 19,401
10-12 p.m. 595 38,155
__________ _____________ _________________
Total: 15,243 368,368
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 323
Davis 358
Irvine 26
Los Angeles 56
Riverside 247
San Diego 39
San Francisco 6
Santa Barbara 188
Santa Cruz 24
Lawrence Berkeley 13
Lawrence Livermore 1
Los Alamos 0
MELWEB 0
Searchlight 780
Other - UC 12,882
Other-Network UC 300
_____
15,243
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 19,726
Davis 5,329
Irvine 113
Los Angeles 1,665
Riverside 1,392
San Diego 361
San Francisco 95
Santa Barbara 2,362
Santa Cruz 487
Lawrence Berkeley 193
Lawrence Livermore 8
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 332,179
Other-Network UC 4,458
_____
368,368
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 7.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:31
Average session length (minutes:seconds) 20:21
Longest session recorded (minutes:seconds) 187:48
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 734.5
Retrievals per search - standard deviation 8944.4
Percent of searches completed with 0 results 29.7%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 15,243 12.6%
PRESENT 99,446 82.2%
INIT or CLOSE 5,584 4.6%
OTHER 674 0.6%
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 5,051 22.5% 938 18.6% 10 152.9 3212.6
TITLE WORD 3,460 15.4% 2,221 64.2% 5 291.0 2537.6
EXACT TITLE 118 0.5% 65 55.1% 1 308.6 2135.5
KEYWORD 7,368 32.9% 1,526 20.7% 21 1507.3 13483.6
JOURNAL 851 3.8% 289 34.0% 6 2345.3 14045.5
EXACT JOURNAL 121 0.5% 47 38.8% 242 1199.3 3293.2
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 1 0.0% 1 100% 0 0.0 0.0
BIOSYS NAMES 9 0.0% 5 55.6% 8 26164.3 52316.5
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 46 0.2% 5 10.9% 21 57.3 111.6
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 3 0.0% 1 33.3% 61 61.0 56.6
PUBLICATION TYPE 25 0.1% 7 28.0% 7 2813.7 11720.1
DATE 107 0.5% 23 21.5% 7 61.3 174.1
LANGUAGE 11 0.0% 3 27.3% 146 6436.4 17512.5
ADDED 2,477 11.0% 2,253 91.0% 4 12.2 21.9
AUTHOR AFFIL. 93 0.4% 27 29.0% 11 299.5 2027.6
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 1 1.0 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 3 0.0% 1 33.3% 24,887 24886.5 35193.4
AT 135 0.6% 26 19.3% 12 1459.6 7997.2
Other indexes 2,546 11.4% 572 22.5% 16 780.2 5514.1
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 6,051 39.7% 3,026 50.0% 7 505.3 5335.5
Single 9,192 60.3% 1,494 16.3% 22 1255.8 12109.1
PRESENT commands, by type:
MARC 57.6%
OPAC 25.3%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)