MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 06/16/01 through 06/22/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 9,683 262,774
BIO88 2,026 24,531
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 449 8,712
2-4 a.m. 186 2,293
4-6 a.m. 77 5,639
6-8 a.m. 363 9,685
8-10 a.m. 833 20,802
10-12 a.m. 1,955 56,576
12-2 p.m. 1,993 50,413
2-4 p.m. 2,478 61,163
4-6 p.m. 1,905 37,844
6-8 p.m. 706 17,436
8-10 p.m. 497 10,621
10-12 p.m. 267 6,121
__________ _____________ _________________
Total: 11,709 287,305
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 272
Davis 746
Irvine 2
Los Angeles 84
Riverside 32
San Diego 141
San Francisco 0
Santa Barbara 112
Santa Cruz 54
Lawrence Berkeley 2
Lawrence Livermore 2
Los Alamos 0
MELWEB 2,264
Searchlight 1,132
Other - UC 6,342
Other-Network UC 524
_____
11,709
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,597
Davis 7,195
Irvine 88
Los Angeles 1,371
Riverside 466
San Diego 1,149
San Francisco 0
Santa Barbara 1,173
Santa Cruz 1,086
Lawrence Berkeley 82
Lawrence Livermore 33
Los Alamos 0
MELWEB 70,175
Searchlight 2,008
Other - UC 192,760
Other-Network UC 6,122
_____
287,305
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 0.2
Standard deviation in seconds 0.4
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 20:45
Average session length (minutes:seconds) 17:58
Longest session recorded (minutes:seconds) 224:29
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 425.1
Retrievals per search - standard deviation 4004.8
Percent of searches completed with 0 results 23.6%
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 11,709 13.2%
PRESENT 71,744 81.0%
INIT or CLOSE 5,063 5.7%
OTHER 68 0.1%
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 4,303 27.0% 868 20.2% 9 134.4 1913.6
TITLE WORD 1,898 11.9% 779 41.0% 3 348.0 6445.2
EXACT TITLE 91 0.6% 50 54.9% 1 3.5 10.5
KEYWORD 6,249 39.3% 1,329 21.3% 17 748.5 4862.2
JOURNAL 556 3.5% 176 31.7% 6 1331.8 7178.5
EXACT JOURNAL 172 1.1% 74 43.0% 100 1166.3 4228.2
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 17 0.1% 17 100% 0 0.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 25 0.2% 2 8.0% 17 43.8 60.0
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 2 0.0% 0 0.0% 132 132.0 164.0
PUBLICATION TYPE 9 0.1% 1 11.1% 18 23.6 24.8
DATE 79 0.5% 9 11.4% 5 55.9 259.6
LANGUAGE 11 0.1% 1 9.1% 34 38.7 38.6
ADDED 774 4.9% 543 70.2% 4 14.6 61.1
AUTHOR AFFIL. 77 0.5% 12 15.6% 12 49.2 198.1
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 3 0.0% 0 0.0% 1 2.3 2.3
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 56 0.4% 14 25.0% 17 35.8 71.2
Other indexes 1,599 10.0% 382 23.9% 12 514.4 3801.7
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 3,442 29.4% 1,198 34.8% 5 287.0 3190.2
Single 8,267 70.6% 1,563 18.9% 18 646.3 4947.6
PRESENT commands, by type:
MARC 55.1%
OPAC 27.9%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)