MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 01/26/02 through 02/01/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 20,403 520,522
BIO88 3,457 53,225
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 812 12,189
2-4 a.m. 577 12,580
4-6 a.m. 118 1,904
6-8 a.m. 348 6,826
8-10 a.m. 1,639 43,429
10-12 a.m. 3,775 88,238
12-2 p.m. 4,204 101,223
2-4 p.m. 4,579 109,212
4-6 p.m. 3,750 96,427
6-8 p.m. 1,948 46,179
8-10 p.m. 1,279 35,806
10-12 p.m. 831 19,734
__________ _____________ _________________
Total: 23,860 573,747
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 500
Davis 658
Irvine 26
Los Angeles 90
Riverside 140
San Diego 98
San Francisco 3
Santa Barbara 281
Santa Cruz 274
Lawrence Berkeley 9
Lawrence Livermore 1
Los Alamos 0
MELWEB 18,742
Searchlight 2,655
Other - UC 137
Other-Network UC 246
_____
23,860
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 7,660
Davis 7,621
Irvine 336
Los Angeles 2,171
Riverside 2,733
San Diego 1,194
San Francisco 24
Santa Barbara 2,650
Santa Cruz 2,858
Lawrence Berkeley 49
Lawrence Livermore 10
Los Alamos 0
MELWEB 523,402
Searchlight 17,336
Other - UC 1,273
Other-Network UC 4,430
_____
573,747
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.0
Standard deviation in seconds 7.8
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) 22:08
Average session length (minutes:seconds) 21:49
Longest session recorded (minutes:seconds) 290:32
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 936.5
Retrievals per search - standard deviation 17106
Percent of searches completed with 0 results 20.8%
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 23,860 13.8%
PRESENT 137,912 80.0%
INIT or CLOSE 9,382 5.4%
OTHER 1,167 0.7%
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 6,991 20.1% 1,201 17.2% 9 147.3 2220.8
TITLE WORD 4,257 12.3% 1,556 36.6% 4 246.8 1961.0
EXACT TITLE 291 0.8% 170 58.4% 1 17.0 160.5
KEYWORD 13,519 39.0% 2,243 16.6% 21 1491.1 23811.3
JOURNAL 1,517 4.4% 505 33.3% 5 2066.7 13466.2
EXACT JOURNAL 296 0.9% 116 39.2% 216 2226.4 6567.1
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 2 0.0% 2 100% 0 0.0 0.0
BIOSYS NAMES 16 0.0% 9 56.3% 35 24.0 19.7
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 42 0.1% 9 21.4% 23 101.1 239.4
MAJ CONCEPT CDES 1 0.0% 0 0.0% 1 1.0 0.0
CONCEPT CODES 2 0.0% 0 0.0% 30 29.5 9.2
PUBLICATION TYPE 100 0.3% 31 31.0% 7 393.1 1852.8
DATE 140 0.4% 24 17.1% 7 47.8 155.8
LANGUAGE 43 0.1% 9 20.9% 55 797.1 2597.4
ADDED 1,091 3.1% 873 80.0% 3 10.4 21.1
AUTHOR AFFIL. 132 0.4% 43 32.6% 9 40.0 131.5
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 5 0.0% 0 0.0% 62 167.6 301.9
AT 249 0.7% 59 23.7% 15 711.5 3432.9
Other indexes 6,004 17.3% 1,096 18.3% 19 1143.2 10523.3
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 7,994 33.5% 2,346 29.3% 7 508.6 4884.0
Single 15,866 66.5% 2,617 16.5% 20 1469.8 22718.7
PRESENT commands, by type:
MARC 50.6%
OPAC 33.2%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)