MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 12/08/01 through 12/14/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 12,496 311,077
BIO88 2,051 43,017
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 632 7,465
2-4 a.m. 418 4,672
4-6 a.m. 84 1,288
6-8 a.m. 460 6,544
8-10 a.m. 857 22,015
10-12 a.m. 2,249 48,434
12-2 p.m. 2,702 65,120
2-4 p.m. 2,950 80,354
4-6 p.m. 1,967 57,898
6-8 p.m. 1,101 28,847
8-10 p.m. 690 17,540
10-12 p.m. 437 13,917
__________ _____________ _________________
Total: 14,547 354,094
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 178
Davis 582
Irvine 5
Los Angeles 68
Riverside 133
San Diego 72
San Francisco 2
Santa Barbara 86
Santa Cruz 236
Lawrence Berkeley 8
Lawrence Livermore 5
Los Alamos 0
MELWEB 0
Searchlight 744
Other - UC 12,103
Other-Network UC 325
_____
14,547
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,380
Davis 11,261
Irvine 522
Los Angeles 744
Riverside 7,112
San Diego 724
San Francisco 1
Santa Barbara 940
Santa Cruz 2,372
Lawrence Berkeley 328
Lawrence Livermore 160
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 322,243
Other-Network UC 5,307
_____
354,094
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.1
Standard deviation in seconds 8.1
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) 21:32
Average session length (minutes:seconds) 20:30
Longest session recorded (minutes:seconds) 289:55
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 699.9
Retrievals per search - standard deviation 8850.1
Percent of searches completed with 0 results 25.2%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 14,547 13.0%
PRESENT 90,719 81.3%
INIT or CLOSE 5,511 4.9%
OTHER 818 0.7%
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 4,989 25.1% 874 17.5% 11 124.2 865.5
TITLE WORD 2,614 13.1% 1,508 57.7% 3 175.2 1778.0
EXACT TITLE 149 0.7% 81 54.4% 1 6.3 18.9
KEYWORD 7,538 37.9% 1,358 18.0% 18 1229.2 12306.7
JOURNAL 706 3.5% 277 39.2% 4 2164.0 13416.0
EXACT JOURNAL 163 0.8% 83 50.9% 105 1788.9 4119.0
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 4 0.0% 3 75.0% 8,825 8825.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 18 0.1% 1 5.6% 24 40.5 44.5
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 1 0.0% 0 0.0% 308 308.0 0.0
PUBLICATION TYPE 9 0.0% 0 0.0% 5 19.1 28.1
DATE 65 0.3% 13 20.0% 5 17.6 28.2
LANGUAGE 2 0.0% 0 0.0% 54 54.0 14.1
ADDED 1,509 7.6% 1,299 86.1% 3 7.3 10.7
AUTHOR AFFIL. 106 0.5% 37 34.9% 10 217.0 1416.7
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 0 0.0% 0 0.0% 0 0.0 0.0
AT 106 0.5% 26 24.5% 10 227.4 943.0
Other indexes 1,917 9.6% 320 16.7% 21 981.7 9503.7
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 4,603 31.6% 1,985 43.1% 7 277.8 3466.6
Single 9,944 68.4% 1,687 17.0% 19 1145.0 11563.6
PRESENT commands, by type:
MARC 56.8%
OPAC 25.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)