MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 07/21/01 through 07/27/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 10,966 300,387
BIO88 2,084 35,042
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 566 12,294
2-4 a.m. 361 2,421
4-6 a.m. 47 6,117
6-8 a.m. 296 4,635
8-10 a.m. 921 21,869
10-12 a.m. 2,225 53,796
12-2 p.m. 2,037 55,285
2-4 p.m. 2,718 71,307
4-6 p.m. 2,305 64,154
6-8 p.m. 802 27,432
8-10 p.m. 389 9,407
10-12 p.m. 383 6,712
__________ _____________ _________________
Total: 13,050 335,429
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 269
Davis 399
Irvine 16
Los Angeles 176
Riverside 67
San Diego 27
San Francisco 7
Santa Barbara 59
Santa Cruz 18
Lawrence Berkeley 41
Lawrence Livermore 1
Los Alamos 0
MELWEB 42
Searchlight 902
Other - UC 10,679
Other-Network UC 347
_____
13,050
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,169
Davis 6,822
Irvine 688
Los Angeles 1,273
Riverside 1,106
San Diego 111
San Francisco 81
Santa Barbara 904
Santa Cruz 383
Lawrence Berkeley 229
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 314,999
Other-Network UC 4,664
_____
335,429
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 6.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:19
Average session length (minutes:seconds) 19:37
Longest session recorded (minutes:seconds) 163:53
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 818.2
Retrievals per search - standard deviation 8807.2
Percent of searches completed with 0 results 21.1%
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 13,050 13.3%
PRESENT 79,492 81.0%
INIT or CLOSE 5,341 5.4%
OTHER 194 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 4,868 27.3% 863 17.7% 9 240.6 7385.5
TITLE WORD 1,855 10.4% 638 34.4% 3 162.4 1522.8
EXACT TITLE 110 0.6% 65 59.1% 1 827.7 3475.3
KEYWORD 6,912 38.8% 1,349 19.5% 23 1306.6 10239.6
JOURNAL 848 4.8% 294 34.7% 5 2857.2 14993.5
EXACT JOURNAL 188 1.1% 90 47.9% 186 1911.3 4868.4
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 9 0.1% 6 66.7% 287 257.0 60.8
BIOSYS NAMES 8 0.0% 7 87.5% 6 6.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 11 0.1% 1 9.1% 10 102.1 231.8
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 16 0.1% 6 37.5% 21 61.2 100.0
DATE 69 0.4% 18 26.1% 4 11.7 16.1
LANGUAGE 17 0.1% 6 35.3% 22 153.5 279.0
ADDED 746 4.2% 504 67.6% 3 13.7 49.3
AUTHOR AFFIL. 79 0.4% 16 20.3% 8 26.4 71.6
ACCESSION NO. 1 0.0% 1 100% 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 1 0.0% 0 0.0% 8 8.0 0.0
AT 79 0.4% 19 24.0% 21 1996.4 9602.7
Other indexes 2,008 11.3% 420 20.9% 20 1303.9 14503.5
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 3,889 29.8% 1,230 31.6% 6 575.2 9877.5
Single 9,161 70.2% 1,519 16.6% 21 1197.1 9905.7
PRESENT commands, by type:
MARC 54.0%
OPAC 28.0%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)