MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/18/00 through 11/24/00
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 13,001 398,950
BIO88 3,018 55,568
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 601 13,423
2-4 a.m. 69 1,215
4-6 a.m. 123 3,660
6-8 a.m. 251 13,016
8-10 a.m. 1,000 32,769
10-12 a.m. 2,310 64,900
12-2 p.m. 2,983 81,087
2-4 p.m. 3,211 92,041
4-6 p.m. 2,505 70,300
6-8 p.m. 1,284 33,184
8-10 p.m. 1,078 31,294
10-12 p.m. 604 17,629
__________ _____________ _________________
Total: 16,019 454,518
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 109
Davis 448
Irvine 0
Los Angeles 40
Riverside 77
San Diego 32
San Francisco 7
Santa Barbara 59
Santa Cruz 18
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 12,940
Searchlight 2,230
Other - UC 9
Other-Network UC 50
_____
16,019
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1,345
Davis 8,167
Irvine 0
Los Angeles 356
Riverside 852
San Diego 754
San Francisco 120
Santa Barbara 834
Santa Cruz 5,109
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 409,409
Searchlight 26,529
Other - UC 99
Other-Network UC 944
_____
454,518
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
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) 21:28
Average session length (minutes:seconds) 20:12
Longest session recorded (minutes:seconds) 200:23
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 746.0
Retrievals per search - standard deviation 7442.5
Percent of searches completed with 0 results 20.3%
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 16,019 12.9%
PRESENT 101,392 81.6%
INIT or CLOSE 6,629 5.3%
OTHER 218 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 3,851 16.9% 764 19.8% 10 114.5 1224.4
TITLE WORD 1,883 8.3% 587 31.2% 4 507.2 6074.9
EXACT TITLE 127 0.6% 85 66.9% 1 16.4 98.9
KEYWORD 10,553 46.4% 1,934 18.3% 19 860.7 7296.2
JOURNAL 973 4.3% 398 40.9% 11 3318.0 15272.6
EXACT JOURNAL 222 1.0% 109 49.1% 47 1361.6 3503.4
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 19 0.1% 13 68.4% 7 60.2 91.1
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 66 0.3% 9 13.6% 9 61.6 121.0
MAJ CONCEPT CDES 3 0.0% 0 0.0% 144930 109545 61289.2
CONCEPT CODES 13 0.1% 2 15.4% 10 14.8 15.0
PUBLICATION TYPE 57 0.3% 15 26.3% 10 153.2 459.8
DATE 34 0.1% 9 26.5% 6 50.2 166.8
LANGUAGE 61 0.3% 12 19.7% 23 234.4 440.9
ADDED 535 2.4% 310 57.9% 4 13.4 24.6
AUTHOR AFFIL. 86 0.4% 39 45.3% 15 57.5 167.8
ACCESSION NO. 1 0.0% 1 100% 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% 1 50.0% 15 15.0 0.0
AT 435 1.9% 107 24.6% 9 136.0 555.6
Other indexes 3,840 16.9% 854 22.2% 21 1576.8 13096.2
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 4,778 29.8% 1,303 27.3% 11 866.2 9447.7
Single 11,241 70.2% 1,957 17.4% 19 962.9 7869.4
PRESENT commands, by type:
MARC 47.6%
OPAC 37.4%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)