MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 02/09/02 through 02/15/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 19,666 506,108
BIO88 3,596 52,682
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 597 11,170
2-4 a.m. 458 4,551
4-6 a.m. 323 2,008
6-8 a.m. 383 7,924
8-10 a.m. 1,742 43,658
10-12 a.m. 4,299 100,585
12-2 p.m. 3,901 94,850
2-4 p.m. 4,079 100,932
4-6 p.m. 3,638 97,081
6-8 p.m. 1,664 41,358
8-10 p.m. 1,322 28,459
10-12 p.m. 856 26,214
__________ _____________ _________________
Total: 23,262 558,790
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 421
Davis 532
Irvine 1
Los Angeles 120
Riverside 76
San Diego 84
San Francisco 16
Santa Barbara 113
Santa Cruz 114
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 18,506
Searchlight 2,579
Other - UC 205
Other-Network UC 495
_____
23,262
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 7,105
Davis 10,559
Irvine 0
Los Angeles 2,893
Riverside 1,907
San Diego 874
San Francisco 166
Santa Barbara 1,724
Santa Cruz 1,018
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 514,209
Searchlight 9,504
Other - UC 673
Other-Network UC 8,158
_____
558,790
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 7.5
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) 21:57
Average session length (minutes:seconds) 21:12
Longest session recorded (minutes:seconds) 257:18
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1103.3
Retrievals per search - standard deviation 16966
Percent of searches completed with 0 results 20.6%
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 23,262 13.8%
PRESENT 134,850 80.0%
INIT or CLOSE 9,030 5.4%
OTHER 1,443 0.9%
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 7,148 21.6% 1,275 17.8% 9 149.2 1755.2
TITLE WORD 3,680 11.1% 1,378 37.4% 3 323.0 2313.0
EXACT TITLE 241 0.7% 135 56.0% 1 36.2 211.8
KEYWORD 13,222 40.0% 2,287 17.3% 22 1566.6 21943.4
JOURNAL 1,582 4.8% 524 33.1% 5 2222.0 10378.4
EXACT JOURNAL 298 0.9% 117 39.3% 191 2968.2 7629.1
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 13 0.0% 12 92.3% 63 63.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 45 0.1% 6 13.3% 7 106.4 440.7
MAJ CONCEPT CDES 5 0.0% 0 0.0% 91,962 80991.4 41927.5
CONCEPT CODES 5 0.0% 0 0.0% 210 188272 257683
PUBLICATION TYPE 38 0.1% 4 10.5% 13 165.4 477.9
DATE 263 0.8% 49 18.6% 5 107.5 775.7
LANGUAGE 35 0.1% 8 22.9% 12 132.3 420.2
ADDED 911 2.8% 713 78.3% 3 11.1 23.2
AUTHOR AFFIL. 183 0.6% 54 29.5% 11 116.4 609.8
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 2 0.0% 2 100% 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 0 0.0% 0 0.0% 0 0.0 0.0
AT 249 0.8% 46 18.5% 17 751.0 6306.4
Other indexes 5,130 15.5% 894 17.4% 18 1469.3 14712.2
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 7,448 32.0% 2,140 28.7% 8 576.0 4954.0
Single 15,814 68.0% 2,657 16.8% 23 1718.2 22318.1
PRESENT commands, by type:
MARC 51.8%
OPAC 30.8%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)