MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 07/14/01 through 07/20/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 11,670 319,108
BIO88 2,559 41,338
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 573 8,993
2-4 a.m. 706 6,130
4-6 a.m. 87 5,895
6-8 a.m. 450 8,110
8-10 a.m. 959 29,432
10-12 a.m. 2,308 57,692
12-2 p.m. 2,561 62,152
2-4 p.m. 2,817 73,597
4-6 p.m. 2,085 60,583
6-8 p.m. 913 24,599
8-10 p.m. 459 14,462
10-12 p.m. 311 8,801
__________ _____________ _________________
Total: 14,229 360,446
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 255
Davis 441
Irvine 11
Los Angeles 159
Riverside 35
San Diego 39
San Francisco 8
Santa Barbara 105
Santa Cruz 87
Lawrence Berkeley 81
Lawrence Livermore 0
Los Alamos 0
MELWEB 4
Searchlight 924
Other - UC 11,868
Other-Network UC 212
_____
14,229
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,545
Davis 14,069
Irvine 58
Los Angeles 1,373
Riverside 837
San Diego 618
San Francisco 60
Santa Barbara 1,166
Santa Cruz 275
Lawrence Berkeley 213
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 331,522
Other-Network UC 3,710
_____
360,446
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 7.2
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) 21:23
Average session length (minutes:seconds) 19:56
Longest session recorded (minutes:seconds) 211:38
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 717.5
Retrievals per search - standard deviation 9475.5
Percent of searches completed with 0 results 24.7%
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 14,229 12.8%
PRESENT 90,544 81.3%
INIT or CLOSE 5,582 5.0%
OTHER 1,009 0.9%
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 4,742 23.8% 945 19.9% 9 212.2 6518.6
TITLE WORD 2,476 12.4% 1,219 49.2% 4 273.9 2209.6
EXACT TITLE 254 1.3% 113 44.5% 1 8.7 61.4
KEYWORD 7,420 37.2% 1,374 18.5% 20 1166.8 11752.3
JOURNAL 928 4.7% 332 35.8% 4 1612.5 12246.0
EXACT JOURNAL 173 0.9% 83 48.0% 278 2211.7 7256.1
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 11 0.1% 11 100% 0 0.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 17 0.1% 6 35.3% 78 1858.0 3552.7
MAJ CONCEPT CDES 2 0.0% 0 0.0% 24,141 24141.0 0.0
CONCEPT CODES 9 0.0% 0 0.0% 144 159.6 189.5
PUBLICATION TYPE 29 0.1% 6 20.7% 16 463.2 1850.9
DATE 111 0.6% 37 33.3% 12 85.1 254.1
LANGUAGE 27 0.1% 7 25.9% 21 999.7 2741.5
ADDED 1,272 6.4% 1,044 82.1% 3 8.6 19.1
AUTHOR AFFIL. 130 0.7% 35 26.9% 10 770.0 6386.9
ACCESSION NO. 1 0.0% 1 100% 0 0.0 0.0
ISSN 5 0.0% 1 20.0% 46 46.0 52.0
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 2 0.0% 1 50.0% 1 1.0 0.0
AT 174 0.9% 45 25.9% 20 479.7 2104.0
Other indexes 2,168 10.9% 477 22.0% 18 1333.5 14602.3
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 4,697 33.0% 1,844 39.3% 6 481.8 8090.1
Single 9,532 67.0% 1,666 17.5% 19 1123.1 11759.1
PRESENT commands, by type:
MARC 55.1%
OPAC 29.6%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)