MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/24/01 through 11/30/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 19,598 514,209
BIO88 3,505 56,835
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 735 9,653
2-4 a.m. 654 7,523
4-6 a.m. 236 3,403
6-8 a.m. 545 9,868
8-10 a.m. 1,493 39,272
10-12 a.m. 3,303 81,575
12-2 p.m. 3,929 108,325
2-4 p.m. 4,452 115,525
4-6 p.m. 3,381 84,242
6-8 p.m. 1,926 42,650
8-10 p.m. 1,581 43,470
10-12 p.m. 868 25,538
__________ _____________ _________________
Total: 23,103 571,044
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 379
Davis 408
Irvine 9
Los Angeles 65
Riverside 86
San Diego 84
San Francisco 4
Santa Barbara 222
Santa Cruz 87
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,954
Other - UC 19,554
Other-Network UC 251
_____
23,103
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,962
Davis 9,578
Irvine 3,474
Los Angeles 1,590
Riverside 1,843
San Diego 1,127
San Francisco 2
Santa Barbara 2,306
Santa Cruz 1,500
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 542,666
Other-Network UC 3,996
_____
571,044
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 7.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:48
Average session length (minutes:seconds) 20:36
Longest session recorded (minutes:seconds) 193:32
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 865.9
Retrievals per search - standard deviation 8450.2
Percent of searches completed with 0 results 21.9%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 23,103 13.9%
PRESENT 133,710 80.4%
INIT or CLOSE 9,270 5.6%
OTHER 303 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 5,957 18.6% 1,104 18.5% 9 96.8 909.6
TITLE WORD 3,569 11.2% 1,587 44.5% 3 117.0 1106.8
EXACT TITLE 261 0.8% 143 54.8% 1 46.5 223.1
KEYWORD 14,217 44.5% 2,399 16.9% 22 1234.4 9448.3
JOURNAL 1,252 3.9% 497 39.7% 10 2770.1 15410.1
EXACT JOURNAL 308 1.0% 138 44.8% 315 2323.9 6762.5
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 5 0.0% 3 60.0% 55,799 55799.0 78896.1
BIOSYS NAMES 11 0.0% 7 63.6% 90 93.8 38.3
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 58 0.2% 10 17.2% 49 127.8 243.5
MAJ CONCEPT CDES 4 0.0% 0 0.0% 88,924 135915 127591
CONCEPT CODES 12 0.0% 2 16.7% 61 344.4 569.2
PUBLICATION TYPE 41 0.1% 6 14.6% 48 172.7 343.6
DATE 80 0.3% 15 18.8% 7 55.8 142.3
LANGUAGE 58 0.2% 14 24.1% 30 146.0 314.6
ADDED 1,271 4.0% 1,064 83.7% 4 89.6 1105.8
AUTHOR AFFIL. 142 0.4% 46 32.4% 8 185.8 1427.7
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 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 14 0.0% 3 21.4% 21 33.5 49.5
AT 253 0.8% 55 21.7% 26 328.6 1408.4
Other indexes 4,449 13.9% 725 16.3% 24 1470.1 12008.3
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 7,051 30.5% 2,273 32.2% 9 729.4 7402.0
Single 16,052 69.5% 2,791 17.4% 21 1245.7 10209.4
PRESENT commands, by type:
MARC 50.0%
OPAC 31.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)