MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/23/02 through 03/29/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 17 231
2-4 a.m. 37 330
4-6 a.m. 5 46
6-8 a.m. 10 46
8-10 a.m. 59 343
10-12 a.m. 126 858
12-2 p.m. 150 1,464
2-4 p.m. 202 673
4-6 p.m. 143 45
6-8 p.m. 44 24
8-10 p.m. 25 2
10-12 p.m. 19 52
__________ _____________ _________________
Total: 837 4,114
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 4
Davis 0
Irvine 3
Los Angeles 0
Riverside 0
San Diego 7
San Francisco 1
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 209
Searchlight 564
Other - UC 48
Other-Network UC 1
_____
837
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5
Davis 0
Irvine 0
Los Angeles 0
Riverside 0
San Diego 2
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,818
Searchlight 219
Other - UC 70
Other-Network UC 0
_____
4,114
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.4
Standard deviation in seconds 2.5
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 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:48
Longest session recorded (minutes:seconds) 120:31
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 534.8
Retrievals per search - standard deviation 2506.2
Percent of searches completed with 0 results 59.0%
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 837 36.2%
PRESENT 756 32.7%
INIT or CLOSE 722 31.2%
OTHER 0 0.0%
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 39 4.3% 29 74.4% 3 482.1 1365.6
TITLE WORD 50 5.5% 31 62.0% 25 237.6 521.2
EXACT TITLE 3 0.3% 2 66.7% 1 1.0 0.0
JOURNAL TITLE 12 1.3% 9 75.0% 178 119.0 102.2
EXACT JOURNAL 59 6.5% 6 10.2% 205 4160.4 6890.1
SUBJECT WORD 31 3.4% 23 74.2% 18 42.9 46.1
EXACT SUBJECT 3 0.3% 1 33.3% 17 17.0 8.5
KEYWORD 657 72.8% 407 61.9% 13 827.0 2689.5
DATE 24 2.7% 5 20.8% 16 40.6 71.2
ADDED SINCE 6 0.7% 3 50.0% 38 54.3 50.5
PUB TYPE 5 0.6% 2 40.0% 136 3533.7 5905.7
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 3 0.3% 1 33.3% 21 21.0 2.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 11 1.2% 4 36.4% 5 31.3 54.5
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
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 59 7.0% 23 39.0% 15 40.3 62.0
Single 778 92.9% 471 60.5% 18 1453.4 3977.8
PRESENT commands, by type:
MARC 45.4%
OPAC 34.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w