MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 07/28/01 through 08/03/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 10,527 271,833
BIO88 1,778 41,092
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 706 4,622
2-4 a.m. 252 1,247
4-6 a.m. 108 3,248
6-8 a.m. 450 4,717
8-10 a.m. 890 23,164
10-12 a.m. 2,094 55,224
12-2 p.m. 2,180 66,069
2-4 p.m. 2,512 72,350
4-6 p.m. 1,597 38,430
6-8 p.m. 789 21,985
8-10 p.m. 415 13,643
10-12 p.m. 312 8,226
__________ _____________ _________________
Total: 12,305 312,925
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 233
Davis 506
Irvine 19
Los Angeles 80
Riverside 414
San Diego 102
San Francisco 31
Santa Barbara 106
Santa Cruz 47
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 576
Other - UC 9,801
Other-Network UC 390
_____
12,305
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1,947
Davis 9,309
Irvine 573
Los Angeles 1,159
Riverside 3,392
San Diego 766
San Francisco 837
Santa Barbara 1,636
Santa Cruz 979
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 285,797
Other-Network UC 6,530
_____
312,925
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.4
Standard deviation in seconds 8.8
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) 21:21
Average session length (minutes:seconds) 19:55
Longest session recorded (minutes:seconds) 215:24
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 550.6
Retrievals per search - standard deviation 6368.4
Percent of searches completed with 0 results 23.4%
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 12,305 12.7%
PRESENT 79,560 82.3%
INIT or CLOSE 4,574 4.7%
OTHER 229 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 4,623 26.9% 866 18.7% 9 106.5 813.6
TITLE WORD 1,862 10.9% 910 48.9% 3 205.9 1278.1
EXACT TITLE 180 1.0% 94 52.2% 1 5.7 18.7
KEYWORD 6,291 36.7% 1,154 18.3% 18 951.5 8590.6
JOURNAL 626 3.6% 251 40.1% 6 2662.9 16413.2
EXACT JOURNAL 175 1.0% 85 48.6% 34 1282.8 3178.4
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 7 0.0% 7 100% 0 0.0 0.0
BIOSYS NAMES 10 0.1% 9 90.0% 27 27.0 0.0
BIOSYS CODES 1 0.0% 1 100% 0 0.0 0.0
SUPERTAXA 16 0.1% 3 18.8% 46 395.5 1002.6
MAJ CONCEPT CDES 3 0.0% 0 0.0% 12,540 12371.7 9193.7
CONCEPT CODES 0 0.0% 0 0.0% 0 0.0 0.0
PUBLICATION TYPE 26 0.2% 7 26.9% 46 472.9 1133.1
DATE 92 0.5% 17 18.5% 16 145.1 592.9
LANGUAGE 12 0.1% 3 25.0% 131 279.3 335.3
ADDED 1,172 6.8% 919 78.4% 2 7.4 16.9
AUTHOR AFFIL. 60 0.3% 21 35.0% 9 89.6 312.1
ACCESSION NO. 1 0.0% 1 100% 0 0.0 0.0
ISSN 3 0.0% 0 0.0% 3 563.0 970.8
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 1 0.0% 1 100% 0 0.0 0.0
AT 94 0.5% 21 22.3% 21 166.0 379.2
Other indexes 1,905 11.1% 509 26.7% 19 547.8 4080.2
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 3,958 32.2% 1,584 40.0% 6 242.6 2387.8
Single 8,347 67.8% 1,293 15.5% 18 878.8 8280.7
PRESENT commands, by type:
MARC 57.5%
OPAC 27.1%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)