MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 01/05/02 through 01/11/02
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 15,696 423,850
BIO88 1,891 34,278
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 453 5,978
2-4 a.m. 388 1,612
4-6 a.m. 124 5,603
6-8 a.m. 258 4,760
8-10 a.m. 1,478 44,079
10-12 a.m. 3,052 97,250
12-2 p.m. 2,910 72,654
2-4 p.m. 3,817 90,420
4-6 p.m. 2,696 72,259
6-8 p.m. 1,172 30,124
8-10 p.m. 746 21,565
10-12 p.m. 493 11,824
__________ _____________ _________________
Total: 17,587 458,128
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 287
Davis 847
Irvine 22
Los Angeles 51
Riverside 148
San Diego 215
San Francisco 1
Santa Barbara 128
Santa Cruz 159
Lawrence Berkeley 14
Lawrence Livermore 1
Los Alamos 0
MELWEB 14,185
Searchlight 1,072
Other - UC 80
Other-Network UC 377
_____
17,587
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 18,406
Davis 20,974
Irvine 415
Los Angeles 1,159
Riverside 5,345
San Diego 2,189
San Francisco 5
Santa Barbara 2,577
Santa Cruz 1,798
Lawrence Berkeley 126
Lawrence Livermore 74
Los Alamos 0
MELWEB 399,194
Searchlight 183
Other - UC 390
Other-Network UC 5,293
_____
458,128
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
Standard deviation in seconds 7.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 22:22
Average session length (minutes:seconds) 22:24
Longest session recorded (minutes:seconds) 205:01
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 1880.6
Retrievals per search - standard deviation 23274
Percent of searches completed with 0 results 18.0%
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 17,587 11.2%
PRESENT 133,146 84.4%
INIT or CLOSE 6,716 4.3%
OTHER 265 0.2%
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 6,434 27.2% 1,054 16.4% 10 99.0 931.3
TITLE WORD 2,123 9.0% 649 30.6% 6 249.8 2595.5
EXACT TITLE 149 0.6% 83 55.7% 1 54.6 363.6
KEYWORD 9,883 41.7% 1,629 16.5% 25 3535.6 33007.0
JOURNAL 1,034 4.4% 364 35.2% 8 2620.9 17829.5
EXACT JOURNAL 193 0.8% 65 33.7% 135 1303.9 2935.4
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 12 0.1% 11 91.7% 2 2.0 0.0
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 19 0.1% 6 31.6% 32 39.7 40.3
MAJ CONCEPT CDES 0 0.0% 0 0.0% 0 0.0 0.0
CONCEPT CODES 2 0.0% 2 100% 0 0.0 0.0
PUBLICATION TYPE 31 0.1% 2 6.5% 8 17.6 31.8
DATE 98 0.4% 17 17.3% 7 66.2 176.9
LANGUAGE 8 0.0% 4 50.0% 86 296.0 450.1
ADDED 535 2.3% 493 92.1% 14 242.9 568.8
AUTHOR AFFIL. 126 0.5% 37 29.4% 11 18.6 26.3
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 2 0.0% 1 50.0% 626 626.0 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 70 0.3% 15 21.4% 22 351.0 1042.4
Other indexes 2,964 12.5% 505 17.0% 19 1099.8 11667.8
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 4,999 28.4% 1,459 29.2% 8 316.3 3493.1
Single 12,588 71.6% 1,706 13.6% 25 2936.5 29471.9
PRESENT commands, by type:
MARC 64.7%
OPAC 19.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)