MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/15/02 through 06/21/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 25 199
2-4 a.m. 0 0
4-6 a.m. 2 0
6-8 a.m. 13 22
8-10 a.m. 24 13
10-12 a.m. 89 354
12-2 p.m. 89 168
2-4 p.m. 170 164
4-6 p.m. 90 215
6-8 p.m. 34 72
8-10 p.m. 12 39
10-12 p.m. 10 40
__________ _____________ _________________
Total: 558 1,286
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 0
Los Angeles 2
Riverside 0
San Diego 5
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 119
Searchlight 411
Other - UC 12
Other-Network UC 6
_____
558
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,025
Searchlight 116
Other - UC 144
Other-Network UC 0
_____
1,286
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.3
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
_________________________________________
Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 2:59
Longest session recorded (minutes:seconds) 51:23
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 407.3
Retrievals per search - standard deviation 2875.0
Percent of searches completed with 0 results 60.9%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 558 43.8%
PRESENT 226 17.8%
INIT or CLOSE 486 38.2%
OTHER 3 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 52 8.8% 45 86.5% 8 18.4 22.6
TITLE WORD 31 5.2% 14 45.2% 16 2638.0 9201.2
EXACT TITLE 4 0.7% 3 75.0% 1 1.0 0.0
JOURNAL TITLE 3 0.5% 3 100% 0 0.0 0.0
EXACT JOURNAL 19 3.2% 2 10.5% 766 4528.6 8104.1
SUBJECT WORD 4 0.7% 3 75.0% 16 16.0 0.0
EXACT SUBJECT 7 1.2% 3 42.9% 1,280 2507.8 3443.4
KEYWORD 451 76.1% 278 61.6% 15 550.6 3154.0
DATE 5 0.8% 3 60.0% 55 55.0 0.0
ADDED SINCE 5 0.8% 4 80.0% 16 16.0 0.0
PUB TYPE 1 0.2% 0 0.0% 1 1.0 0.0
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 1 0.2% 0 0.0% 17 17.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 10 1.7% 6 60.0% 45 341.5 623.3
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 31 5.6% 20 64.5% 16 137.5 378.3
Single 527 94.4% 320 60.7% 20 1090.6 4647.1
PRESENT commands, by type:
MARC 47.8%
OPAC 25.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w