MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 02/23/02 through 03/01/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 19,999 497,511
BIO88 3,687 62,647
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 667 13,088
2-4 a.m. 498 7,167
4-6 a.m. 91 2,995
6-8 a.m. 349 5,244
8-10 a.m. 1,672 38,775
10-12 a.m. 3,702 88,250
12-2 p.m. 4,472 106,466
2-4 p.m. 4,622 120,025
4-6 p.m. 3,585 88,694
6-8 p.m. 1,815 41,052
8-10 p.m. 1,432 33,838
10-12 p.m. 781 14,564
__________ _____________ _________________
Total: 23,686 560,158
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 236
Davis 487
Irvine 1
Los Angeles 101
Riverside 69
San Diego 30
San Francisco 2
Santa Barbara 132
Santa Cruz 183
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 19,641
Searchlight 2,122
Other - UC 136
Other-Network UC 546
_____
23,686
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,428
Davis 8,669
Irvine 4
Los Angeles 1,737
Riverside 1,702
San Diego 181
San Francisco 54
Santa Barbara 1,180
Santa Cruz 1,215
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 522,457
Searchlight 11,115
Other - UC 17
Other-Network UC 9,399
_____
560,158
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 5.8
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) 22:16
Average session length (minutes:seconds) 22:08
Longest session recorded (minutes:seconds) 249:47
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 758.4
Retrievals per search - standard deviation 8194.7
Percent of searches completed with 0 results 19.2%
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 23,686 14.3%
PRESENT 132,293 79.6%
INIT or CLOSE 9,123 5.5%
OTHER 1,067 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 7,034 21.5% 1,225 17.4% 9 85.4 588.8
TITLE WORD 3,272 10.0% 986 30.1% 4 277.1 3626.0
EXACT TITLE 260 0.8% 166 63.8% 1 15.9 85.3
KEYWORD 14,236 43.6% 2,384 16.7% 20 1006.2 8919.4
JOURNAL 1,526 4.7% 572 37.5% 4 2511.2 15638.1
EXACT JOURNAL 273 0.8% 109 39.9% 35 2682.3 6886.0
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 0.0% 3 100% 0 0.0 0.0
BIOSYS NAMES 10 0.0% 6 60.0% 29 39.5 41.9
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 100 0.3% 48 48.0% 34 723.3 2924.1
MAJ CONCEPT CDES 6 0.0% 0 0.0% 39,262 88484.8 126062
CONCEPT CODES 6 0.0% 0 0.0% 9,852 14960.0 19427.3
PUBLICATION TYPE 94 0.3% 31 33.0% 12 507.8 2570.3
DATE 179 0.5% 29 16.2% 5 91.1 448.1
LANGUAGE 41 0.1% 4 9.8% 32 819.3 3321.3
ADDED 596 1.8% 405 67.9% 3 12.7 33.1
AUTHOR AFFIL. 181 0.6% 35 19.3% 17 755.9 4463.9
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 3 0.0% 3 100% 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 5 0.0% 1 20.0% 3,457 6647.8 9011.2
AT 317 1.0% 109 34.4% 20 639.1 4457.9
Other indexes 4,526 13.9% 776 17.1% 21 1049.7 9383.3
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 6,884 29.1% 1,808 26.3% 8 376.8 3695.5
Single 16,802 70.9% 2,735 16.3% 19 1140.9 10380.9
PRESENT commands, by type:
MARC 49.2%
OPAC 33.4%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)