MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/23/01 through 06/29/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 11,055 254,566
BIO88 2,135 34,842
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 475 4,997
2-4 a.m. 497 1,479
4-6 a.m. 57 969
6-8 a.m. 422 8,475
8-10 a.m. 1,008 24,653
10-12 a.m. 2,141 47,918
12-2 p.m. 2,198 51,373
2-4 p.m. 2,864 72,371
4-6 p.m. 1,963 44,082
6-8 p.m. 864 17,451
8-10 p.m. 429 11,487
10-12 p.m. 272 4,153
__________ _____________ _________________
Total: 13,190 289,408
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 301
Davis 638
Irvine 8
Los Angeles 45
Riverside 95
San Diego 103
San Francisco 20
Santa Barbara 97
Santa Cruz 27
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 8
Searchlight 1,099
Other - UC 10,043
Other-Network UC 704
_____
13,190
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,747
Davis 10,335
Irvine 15
Los Angeles 1,752
Riverside 1,030
San Diego 1,058
San Francisco 343
Santa Barbara 752
Santa Cruz 334
Lawrence Berkeley 0
Lawrence Livermore 7,075
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 258,676
Other-Network UC 5,291
_____
289,408
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 10.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.9
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:46
Average session length (minutes:seconds) 17:43
Longest session recorded (minutes:seconds) 158:29
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 862.0
Retrievals per search - standard deviation 19708
Percent of searches completed with 0 results 27.5%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 13,190 13.3%
PRESENT 80,535 81.1%
INIT or CLOSE 5,176 5.2%
OTHER 382 0.4%
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 4,468 24.5% 785 17.6% 10 104.4 1048.7
TITLE WORD 2,378 13.0% 1,357 57.1% 3 441.1 6409.3
EXACT TITLE 99 0.5% 51 51.5% 1 23.3 130.7
KEYWORD 6,913 37.9% 1,593 23.0% 18 1064.8 8394.8
JOURNAL 716 3.9% 228 31.8% 5 8077.1 95736.9
EXACT JOURNAL 155 0.9% 65 41.9% 154 1156.3 2387.6
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 8 0.0% 7 87.5% 108939 108939 0.0
BIOSYS NAMES 5 0.0% 4 80.0% 41 41.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 11 0.1% 0 0.0% 15 111.3 154.8
MAJ CONCEPT CDES 2 0.0% 0 0.0% 152 152.0 127.3
CONCEPT CODES 3 0.0% 1 33.3% 58 58.0 66.5
PUBLICATION TYPE 12 0.1% 3 25.0% 14 57.7 108.9
DATE 82 0.4% 23 28.0% 2 33.7 108.1
LANGUAGE 8 0.0% 0 0.0% 8 23.3 28.5
ADDED 1,452 8.0% 1,282 88.3% 4 14.3 30.4
AUTHOR AFFIL. 81 0.4% 30 37.0% 13 19.2 21.7
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 86 0.5% 15 17.4% 12 220.7 878.9
Other indexes 1,748 9.6% 497 28.4% 14 1003.9 12831.7
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 4,179 31.7% 1,915 45.8% 5 230.2 2057.5
Single 9,011 68.3% 1,710 19.0% 19 1486.0 26448.4
PRESENT commands, by type:
MARC 59.8%
OPAC 25.4%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)