MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 03/03/01 through 03/09/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 19,812 561,158
BIO88 4,641 73,632
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 637 15,112
2-4 a.m. 306 4,390
4-6 a.m. 137 2,562
6-8 a.m. 320 8,957
8-10 a.m. 1,725 44,419
10-12 a.m. 3,810 92,095
12-2 p.m. 4,217 110,293
2-4 p.m. 4,638 115,153
4-6 p.m. 3,814 108,034
6-8 p.m. 2,271 59,194
8-10 p.m. 1,518 43,983
10-12 p.m. 1,060 30,598
__________ _____________ _________________
Total: 24,453 634,790
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 243
Davis 651
Irvine 3
Los Angeles 81
Riverside 195
San Diego 143
San Francisco 0
Santa Barbara 84
Santa Cruz 195
Lawrence Berkeley 30
Lawrence Livermore 1
Los Alamos 0
MELWEB 19,001
Searchlight 3,387
Other - UC 88
Other-Network UC 351
_____
24,453
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 9,700
Davis 14,133
Irvine 96
Los Angeles 1,717
Riverside 4,798
San Diego 691
San Francisco 0
Santa Barbara 761
Santa Cruz 2,704
Lawrence Berkeley 140
Lawrence Livermore 0
Los Alamos 0
MELWEB 578,664
Searchlight 11,696
Other - UC 2,242
Other-Network UC 7,448
_____
634,790
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 6.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:11
Average session length (minutes:seconds) 19:17
Longest session recorded (minutes:seconds) 176:52
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 812.7
Retrievals per search - standard deviation 8064.4
Percent of searches completed with 0 results 19.9%
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 24,453 12.7%
PRESENT 157,014 81.8%
INIT or CLOSE 10,321 5.4%
OTHER 255 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 6,515 19.2% 1,172 18.0% 9 138.1 2645.2
TITLE WORD 2,787 8.2% 746 26.8% 4 246.4 1993.2
EXACT TITLE 216 0.6% 135 62.5% 1 56.2 451.5
KEYWORD 15,841 46.7% 2,989 18.9% 21 1090.6 8922.7
JOURNAL 1,409 4.2% 507 36.0% 7 2667.0 14539.2
EXACT JOURNAL 322 0.9% 160 49.7% 389 1871.9 3901.2
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 0 0.0% 30 29.5 14.8
BIOSYS NAMES 33 0.1% 27 81.8% 12 20.2 27.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 49 0.1% 6 12.2% 25 329.8 1013.5
MAJ CONCEPT CDES 5 0.0% 0 0.0% 126343 114606 37508.0
CONCEPT CODES 11 0.0% 1 9.1% 9 12258.8 38707.8
PUBLICATION TYPE 82 0.2% 15 18.3% 16 338.0 1004.6
DATE 124 0.4% 38 30.6% 4 47.9 169.1
LANGUAGE 84 0.2% 11 13.1% 35 366.2 1219.9
ADDED 613 1.8% 371 60.5% 4 12.7 31.8
AUTHOR AFFIL. 88 0.3% 32 36.4% 8 372.8 1353.9
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 3 0.0% 2 66.7% 741 741.0 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 6 0.0% 0 0.0% 162 1328.3 1934.6
AT 327 1.0% 77 23.5% 17 1888.7 13674.0
Other indexes 5,392 15.9% 1,231 22.8% 21 1165.7 9572.0
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 7,001 28.6% 1,879 26.8% 9 668.8 5992.8
Single 17,452 71.4% 2,994 17.2% 21 1137.7 9845.7
PRESENT commands, by type:
MARC 53.7%
OPAC 31.7%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)