MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/08/02 through 06/14/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 12,425 293,319
BIO88 2,482 36,143
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 860 7,730
2-4 a.m. 447 3,289
4-6 a.m. 50 1,105
6-8 a.m. 286 5,991
8-10 a.m. 1,093 25,567
10-12 a.m. 2,436 56,429
12-2 p.m. 2,494 61,654
2-4 p.m. 2,896 61,792
4-6 p.m. 2,344 58,937
6-8 p.m. 950 25,582
8-10 p.m. 599 11,282
10-12 p.m. 452 10,104
__________ _____________ _________________
Total: 14,907 329,462
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 274
Davis 927
Irvine 24
Los Angeles 155
Riverside 103
San Diego 110
San Francisco 12
Santa Barbara 329
Santa Cruz 62
Lawrence Berkeley 0
Lawrence Livermore 6
Los Alamos 0
MELWEB 10,415
Searchlight 2,356
Other - UC 10
Other-Network UC 124
_____
14,907
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 7,393
Davis 16,179
Irvine 500
Los Angeles 2,318
Riverside 12,627
San Diego 1,372
San Francisco 364
Santa Barbara 4,602
Santa Cruz 753
Lawrence Berkeley 0
Lawrence Livermore 243
Los Alamos 0
MELWEB 272,782
Searchlight 8,111
Other - UC 94
Other-Network UC 2,124
_____
329,462
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.7
Standard deviation in seconds 6.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:09
Average session length (minutes:seconds) 18:38
Longest session recorded (minutes:seconds) 165:21
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 559.7
Retrievals per search - standard deviation 7056.2
Percent of searches completed with 0 results 23.8%
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 14,907 12.1%
PRESENT 101,588 82.3%
INIT or CLOSE 6,300 5.1%
OTHER 603 0.5%
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 5,276 26.9% 889 16.8% 10 175.6 3448.3
TITLE WORD 2,289 11.7% 914 39.9% 3 202.0 2238.3
EXACT TITLE 104 0.5% 66 63.5% 1 29.9 167.1
KEYWORD 8,113 41.3% 1,895 23.4% 19 878.2 8832.5
JOURNAL 819 4.2% 278 33.9% 9 2576.9 14621.8
EXACT JOURNAL 156 0.8% 62 39.7% 280 1540.6 3144.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 2 100% 0 0.0 0.0
BIOSYS NAMES 21 0.1% 18 85.7% 24 27.0 15.7
BIOSYS CODES 3 0.0% 0 0.0% 6 10.7 8.1
SUPERTAXA 24 0.1% 7 29.2% 25 107.4 231.4
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 5 0.0% 2 40.0% 6 10.7 8.1
PUBLICATION TYPE 20 0.1% 8 40.0% 21 792.8 2570.1
DATE 115 0.6% 19 16.5% 9 47.1 131.1
LANGUAGE 15 0.1% 5 33.3% 27 113.4 163.7
ADDED 869 4.4% 740 85.2% 3 8.8 19.0
AUTHOR AFFIL. 81 0.4% 18 22.2% 11 567.8 3504.1
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 154 154.0 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 63 0.3% 9 14.3% 15 527.4 1605.8
Other indexes 1,652 8.4% 300 18.2% 16 933.5 10199.0
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 4,033 27.1% 1,459 36.2% 6 378.8 5003.2
Single 10,874 72.9% 2,089 19.2% 19 838.7 8771.8
PRESENT commands, by type:
MARC 65.5%
OPAC 21.5%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)