MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/22/01 through 12/28/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 9 24
2-4 a.m. 7 47
4-6 a.m. 58 261
6-8 a.m. 39 0
8-10 a.m. 26 11
10-12 a.m. 42 184
12-2 p.m. 68 873
2-4 p.m. 60 188
4-6 p.m. 32 57
6-8 p.m. 13 338
8-10 p.m. 11 0
10-12 p.m. 21 0
__________ _____________ _________________
Total: 386 1,983
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 1
Irvine 0
Los Angeles 0
Riverside 0
San Diego 132
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 133
Other - UC 120
Other-Network UC 0
_____
386
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 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 1,983
Other-Network UC 0
_____
1,983
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.2
Standard deviation in seconds 0.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 4:28
Longest session recorded (minutes:seconds) 53:21
Average number of searches completed per session 0.0
Retrievals per search - median 2.5
Retrievals per search - average 2903.8
Retrievals per search - standard deviation 27128
Percent of searches completed with 0 results 42.0%
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 386 37.2%
PRESENT 306 29.5%
INIT or CLOSE 345 33.3%
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 7 1.7% 5 71.4% 7 7.0 4.2
TITLE WORD 11 2.7% 5 45.5% 46 93.8 127.8
EXACT TITLE 4 1.0% 4 100% 0 0.0 0.0
JOURNAL TITLE 3 0.7% 2 66.7% 156 156.0 0.0
EXACT JOURNAL 65 16.1% 5 7.7% 2,021 6203.9 8392.4
SUBJECT WORD 3 0.7% 2 66.7% 9 9.0 0.0
EXACT SUBJECT 3 0.7% 2 66.7% 1,812 1812.0 0.0
KEYWORD 297 73.7% 142 47.8% 28 4813.5 42375.4
DATE 1 0.2% 1 100% 0 0.0 0.0
ADDED SINCE 6 1.5% 4 66.7% 5 5.0 5.7
PUB TYPE 2 0.5% 1 50.0% 27 27.0 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 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 1 0.2% 1 100% 0 0.0 0.0
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 15 3.9% 10 66.7% 9 9.8 10.3
Single 371 96.1% 152 41.0% 82 5117.9 35893.4
PRESENT commands, by type:
MARC 47.0%
OPAC 19.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w