MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 02/02/02 through 02/08/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 18,425 494,834
BIO88 3,280 49,644
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 568 9,483
2-4 a.m. 343 4,007
4-6 a.m. 194 2,396
6-8 a.m. 263 10,499
8-10 a.m. 1,524 38,878
10-12 a.m. 3,548 89,903
12-2 p.m. 3,791 98,409
2-4 p.m. 4,666 108,399
4-6 p.m. 3,309 88,044
6-8 p.m. 1,523 36,401
8-10 p.m. 1,253 37,429
10-12 p.m. 723 20,630
__________ _____________ _________________
Total: 21,705 544,478
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 634
Davis 483
Irvine 6
Los Angeles 165
Riverside 38
San Diego 88
San Francisco 4
Santa Barbara 120
Santa Cruz 138
Lawrence Berkeley 23
Lawrence Livermore 0
Los Alamos 0
MELWEB 17,277
Searchlight 2,391
Other - UC 118
Other-Network UC 220
_____
21,705
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5,650
Davis 7,474
Irvine 18
Los Angeles 4,207
Riverside 669
San Diego 978
San Francisco 21
Santa Barbara 1,834
Santa Cruz 1,399
Lawrence Berkeley 134
Lawrence Livermore 0
Los Alamos 0
MELWEB 499,791
Searchlight 13,191
Other - UC 5,097
Other-Network UC 4,015
_____
544,478
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.7
Standard deviation in seconds 6.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:52
Average session length (minutes:seconds) 20:50
Longest session recorded (minutes:seconds) 143:02
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1055.0
Retrievals per search - standard deviation 11946
Percent of searches completed with 0 results 18.8%
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 21,705 13.8%
PRESENT 125,849 79.9%
INIT or CLOSE 9,040 5.7%
OTHER 826 0.5%
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 6,667 22.1% 1,140 17.1% 9 144.4 1165.8
TITLE WORD 3,351 11.1% 932 27.8% 3 369.7 4255.2
EXACT TITLE 198 0.7% 114 57.6% 1 348.6 2256.8
KEYWORD 12,480 41.4% 2,082 16.7% 24 1438.2 13384.0
JOURNAL 1,375 4.6% 501 36.4% 6 3801.5 20696.5
EXACT JOURNAL 289 1.0% 103 35.6% 137 2040.8 6236.2
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 10 0.0% 1 10.0% 21 456.2 1138.6
BIOSYS NAMES 12 0.0% 8 66.7% 3 6.5 8.5
BIOSYS CODES 1 0.0% 0 0.0% 4 4.0 0.0
SUPERTAXA 35 0.1% 5 14.3% 19 146.7 389.7
MAJ CONCEPT CDES 7 0.0% 0 0.0% 16,137 30753.7 33954.1
CONCEPT CODES 5 0.0% 1 20.0% 65 88.5 98.1
PUBLICATION TYPE 46 0.2% 4 8.7% 22 373.0 1320.9
DATE 139 0.5% 18 12.9% 7 54.2 186.8
LANGUAGE 41 0.1% 5 12.2% 30 157.2 366.8
ADDED 556 1.8% 337 60.6% 3 8.3 18.6
AUTHOR AFFIL. 120 0.4% 35 29.2% 5 21.3 59.6
ACCESSION NO. 2 0.0% 2 100% 0 0.0 0.0
ISSN 2 0.0% 1 50.0% 491 491.0 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 3 0.0% 0 0.0% 76 172.0 231.4
AT 208 0.7% 55 26.4% 9 4449.3 21661.8
Other indexes 4,583 15.2% 764 16.7% 21 1324.7 15323.7
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 6,475 29.8% 1,591 24.6% 7 597.2 6320.2
Single 15,230 70.2% 2,489 16.3% 23 1568.3 15070.1
PRESENT commands, by type:
MARC 49.9%
OPAC 33.6%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)