MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/29/01 through 01/04/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 17 42
2-4 a.m. 29 950
4-6 a.m. 56 240
6-8 a.m. 64 3
8-10 a.m. 79 202
10-12 a.m. 109 1,342
12-2 p.m. 68 1,114
2-4 p.m. 128 776
4-6 p.m. 59 344
6-8 p.m. 38 210
8-10 p.m. 12 33
10-12 p.m. 15 0
__________ _____________ _________________
Total: 674 5,256
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 2
Davis 1
Irvine 0
Los Angeles 0
Riverside 0
San Diego 216
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 231
Other - UC 220
Other-Network UC 3
_____
674
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 5,245
Other-Network UC 11
_____
5,256
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 0.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:02
Average session length (minutes:seconds) 4:29
Longest session recorded (minutes:seconds) 73:13
Average number of searches completed per session 0.0
Retrievals per search - median 2.0
Retrievals per search - average 899.5
Retrievals per search - standard deviation 4898.3
Percent of searches completed with 0 results 42.6%
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 674 31.9%
PRESENT 873 41.3%
INIT or CLOSE 567 26.8%
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 32 4.4% 19 59.4% 98 77.5 61.5
TITLE WORD 58 8.0% 23 39.7% 14 261.7 546.2
EXACT TITLE 3 0.4% 2 66.7% 1 1.0 0.0
JOURNAL TITLE 9 1.2% 6 66.7% 98 95.7 83.5
EXACT JOURNAL 45 6.2% 4 8.9% 1,145 5746.4 8833.6
SUBJECT WORD 7 1.0% 0 0.0% 9 2394.9 6282.0
EXACT SUBJECT 5 0.7% 2 40.0% 2 9.0 13.0
KEYWORD 526 72.4% 238 45.2% 30 1193.4 6334.9
DATE 2 0.3% 2 100% 0 0.0 0.0
ADDED SINCE 6 0.8% 4 66.7% 6 5.5 4.9
PUB TYPE 2 0.3% 0 0.0% 48 47.5 64.3
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 2 0.3% 0 0.0% 1 1.0 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 15 2.1% 0 0.0% 30 99.5 195.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 15 2.1% 5 33.3% 183 429.1 636.9
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 49 7.3% 16 32.7% 30 183.9 399.1
Single 625 92.7% 271 43.4% 30 1695.5 6662.4
PRESENT commands, by type:
MARC 44.0%
OPAC 29.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w