MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 01/06/01 through 01/12/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 11,253 326,453
BIO88 2,181 49,478
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 380 4,165
2-4 a.m. 125 850
4-6 a.m. 99 1,467
6-8 a.m. 207 8,706
8-10 a.m. 1,000 27,441
10-12 a.m. 2,358 63,397
12-2 p.m. 2,502 71,859
2-4 p.m. 2,798 82,794
4-6 p.m. 2,100 67,615
6-8 p.m. 1,035 24,076
8-10 p.m. 524 14,206
10-12 p.m. 306 9,355
__________ _____________ _________________
Total: 13,434 375,931
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 682
Davis 687
Irvine 3
Los Angeles 174
Riverside 74
San Diego 29
San Francisco 44
Santa Barbara 45
Santa Cruz 53
Lawrence Berkeley 1
Lawrence Livermore 2
Los Alamos 0
MELWEB 9,481
Searchlight 1,743
Other - UC 92
Other-Network UC 324
_____
13,434
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 19,982
Davis 14,031
Irvine 18
Los Angeles 2,089
Riverside 2,066
San Diego 187
San Francisco 1,518
Santa Barbara 907
Santa Cruz 551
Lawrence Berkeley 23
Lawrence Livermore 32
Los Alamos 0
MELWEB 321,681
Searchlight 2,795
Other - UC 7,694
Other-Network UC 2,357
_____
375,931
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 6.0
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) 20:59
Average session length (minutes:seconds) 18:47
Longest session recorded (minutes:seconds) 224:48
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 726.6
Retrievals per search - standard deviation 8029.1
Percent of searches completed with 0 results 19.8%
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 13,434 10.5%
PRESENT 108,458 84.9%
INIT or CLOSE 5,652 4.4%
OTHER 127 0.1%
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 4,944 26.6% 844 17.1% 7 72.2 710.0
TITLE WORD 1,968 10.6% 509 25.9% 3 239.8 2703.5
EXACT TITLE 90 0.5% 65 72.2% 1 2.1 4.1
KEYWORD 7,454 40.2% 1,413 19.0% 20 1269.7 11149.7
JOURNAL 848 4.6% 327 38.6% 6 1763.1 10206.4
EXACT JOURNAL 141 0.8% 66 46.8% 40 1207.4 2951.7
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 0 0.0% 0 0.0% 0 0.0 0.0
BIOSYS NAMES 2 0.0% 2 100% 0 0.0 0.0
BIOSYS CODES 3 0.0% 0 0.0% 1 1.7 1.2
SUPERTAXA 18 0.1% 3 16.7% 28 88.7 111.7
MAJ CONCEPT CDES 1 0.0% 0 0.0% 126343 126343 0.0
CONCEPT CODES 1 0.0% 0 0.0% 165 165.0 0.0
PUBLICATION TYPE 28 0.2% 9 32.1% 28 100.7 150.0
DATE 82 0.4% 13 15.9% 3 67.7 324.2
LANGUAGE 25 0.1% 14 56.0% 165 141.8 138.9
ADDED 427 2.3% 310 72.6% 3 10.0 43.1
AUTHOR AFFIL. 85 0.5% 29 34.1% 7 24.2 78.2
ACCESSION NO. 0 0.0% 0 0.0% 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 2 0.0% 2 100% 0 0.0 0.0
AT 142 0.8% 46 32.4% 8 1371.9 12349.5
Other indexes 2,291 12.3% 467 20.4% 14 549.8 4678.6
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 4,119 30.7% 1,114 27.0% 5 244.1 3003.2
Single 9,315 69.3% 1,551 16.6% 20 1162.8 10373.1
PRESENT commands, by type:
MARC 65.1%
OPAC 23.9%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)