MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 11/17/01 through 11/23/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 16,095 444,654
BIO88 2,653 37,511
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 670 9,921
2-4 a.m. 473 7,055
4-6 a.m. 146 5,963
6-8 a.m. 486 5,274
8-10 a.m. 1,158 26,028
10-12 a.m. 2,705 68,269
12-2 p.m. 3,212 87,820
2-4 p.m. 3,718 105,312
4-6 p.m. 2,807 83,163
6-8 p.m. 1,487 40,284
8-10 p.m. 1,164 26,435
10-12 p.m. 722 16,641
__________ _____________ _________________
Total: 18,748 482,165
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 351
Davis 289
Irvine 12
Los Angeles 32
Riverside 76
San Diego 30
San Francisco 3
Santa Barbara 45
Santa Cruz 35
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,422
Other - UC 16,259
Other-Network UC 194
_____
18,748
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,551
Davis 2,973
Irvine 50
Los Angeles 542
Riverside 777
San Diego 266
San Francisco 36
Santa Barbara 230
Santa Cruz 475
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 469,024
Other-Network UC 3,241
_____
482,165
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.1
Standard deviation in seconds 7.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:57
Average session length (minutes:seconds) 21:40
Longest session recorded (minutes:seconds) 167:00
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 890.3
Retrievals per search - standard deviation 8661.1
Percent of searches completed with 0 results 21.2%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 18,748 14.2%
PRESENT 105,617 79.9%
INIT or CLOSE 7,128 5.4%
OTHER 677 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 4,788 17.9% 902 18.8% 9 95.7 998.4
TITLE WORD 3,003 11.3% 1,180 39.3% 5 266.0 6400.7
EXACT TITLE 212 0.8% 123 58.0% 1 5.1 23.2
KEYWORD 11,407 42.7% 1,919 16.8% 24 1104.2 8121.2
JOURNAL 1,172 4.4% 406 34.6% 4 3078.3 15176.3
EXACT JOURNAL 205 0.8% 79 38.5% 9 1911.4 7929.3
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 3 0.0% 3 100% 0 0.0 0.0
BIOSYS NAMES 9 0.0% 6 66.7% 4 820.0 1415.1
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 62 0.2% 8 12.9% 27 98.4 228.9
MAJ CONCEPT CDES 4 0.0% 0 0.0% 47,719 47713.0 50168.0
CONCEPT CODES 2 0.0% 0 0.0% 16 15.5 12.0
PUBLICATION TYPE 68 0.3% 11 16.2% 27 141.8 313.2
DATE 66 0.2% 16 24.2% 5 73.4 183.5
LANGUAGE 55 0.2% 5 9.1% 52 236.1 434.9
ADDED 959 3.6% 740 77.2% 4 15.4 74.6
AUTHOR AFFIL. 108 0.4% 40 37.0% 7 282.4 2086.9
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 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 5 0.0% 1 20.0% 325 329.8 172.7
AT 311 1.2% 71 22.8% 15 292.2 1491.4
Other indexes 4,252 15.9% 790 18.6% 26 1789.4 14418.7
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 6,131 32.7% 1,836 29.9% 10 708.9 7030.5
Single 12,617 67.3% 2,140 17.0% 22 1302.6 10653.4
PRESENT commands, by type:
MARC 45.8%
OPAC 35.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)