MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS
Time period: 10/13/01 through 10/19/01
1.0 SUMMARY STATISTICS
_______________________
Relative use of BIOSIS databases:
Number of
Searches Records Presented
________ _________________
BIOSIS 17,495 445,436
BIO88 3,201 48,171
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 848 12,359
2-4 a.m. 728 5,691
4-6 a.m. 88 1,589
6-8 a.m. 443 14,357
8-10 a.m. 1,372 33,325
10-12 a.m. 3,195 84,407
12-2 p.m. 3,420 76,806
2-4 p.m. 3,920 90,768
4-6 p.m. 3,042 65,407
6-8 p.m. 1,549 39,249
8-10 p.m. 1,322 44,046
10-12 p.m. 769 25,603
__________ _____________ _________________
Total: 20,696 493,607
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 371
Davis 483
Irvine 1
Los Angeles 37
Riverside 24
San Diego 102
San Francisco 5
Santa Barbara 220
Santa Cruz 98
Lawrence Berkeley 10
Lawrence Livermore 3
Los Alamos 0
MELWEB 0
Searchlight 1,788
Other - UC 17,244
Other-Network UC 310
_____
20,696
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,800
Davis 7,861
Irvine 0
Los Angeles 819
Riverside 376
San Diego 2,365
San Francisco 264
Santa Barbara 1,790
Santa Cruz 1,753
Lawrence Berkeley 175
Lawrence Livermore 139
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 469,219
Other-Network UC 5,046
_____
493,607
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.2
Standard deviation in seconds 8.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.7
2.0 BIOSIS Databases Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 21:30
Average session length (minutes:seconds) 19:48
Longest session recorded (minutes:seconds) 257:09
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1175.6
Retrievals per search - standard deviation 15041
Percent of searches completed with 0 results 22.9%
Percent of searches entered that are long 0.4%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 20,696 14.4%
PRESENT 113,963 79.5%
INIT or CLOSE 8,151 5.7%
OTHER 618 0.4%
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 5,475 18.7% 986 18.0% 10 99.1 1300.9
TITLE WORD 3,053 10.4% 1,539 50.4% 4 314.8 3186.2
EXACT TITLE 163 0.6% 105 64.4% 1 3507.2 25709.9
KEYWORD 12,515 42.8% 2,219 17.7% 25 1845.6 19988.9
JOURNAL 1,320 4.5% 414 31.4% 8 2902.8 16208.8
EXACT JOURNAL 343 1.2% 133 38.8% 62 1352.1 3049.1
SOURCE 0 0.0% 0 0.0% 0 0.0 0.0
CONFERENCE 19 0.1% 11 57.9% 454 744.6 760.7
BIOSYS NAMES 13 0.0% 10 76.9% 13 31.0 37.4
BIOSYS CODES 0 0.0% 0 0.0% 0 0.0 0.0
SUPERTAXA 64 0.2% 13 20.3% 22 343.0 1001.0
MAJ CONCEPT CDES 1 0.0% 0 0.0% 254428 254428 0.0
CONCEPT CODES 2 0.0% 0 0.0% 23 22.5 13.4
PUBLICATION TYPE 65 0.2% 12 18.5% 24 552.6 1643.0
DATE 57 0.2% 13 22.8% 10 70.4 202.3
LANGUAGE 38 0.1% 6 15.8% 75 451.0 1219.8
ADDED 1,377 4.7% 1,152 83.7% 3 15.9 55.0
AUTHOR AFFIL. 94 0.3% 22 23.4% 8 37.6 87.3
ACCESSION NO. 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 933 933.0 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 10 0.0% 0 0.0% 151 1275.6 1997.9
AT 198 0.7% 48 24.2% 25 920.2 7038.7
Other indexes 4,414 15.1% 1,014 23.0% 24 1478.4 11333.5
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 6,270 30.3% 2,221 35.4% 10 844.7 7811.1
Single 14,426 69.7% 2,523 17.5% 24 1756.8 19279.7
PRESENT commands, by type:
MARC 50.7%
OPAC 29.3%
SBImm/dd srv.bio MELSRV BIOSIS DATABASES Z39.50 SERVER STATISTICS (weekly)