MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/99 through 09/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 433 10,744
2-4 a.m. 417 3,226
4-6 a.m. 131 1,526
6-8 a.m. 322 9,287
8-10 a.m. 1,595 57,543
10-12 a.m. 4,367 178,601
12-2 p.m. 5,415 266,051
2-4 p.m. 5,837 282,232
4-6 p.m. 3,974 207,090
6-8 p.m. 1,862 104,092
8-10 p.m. 1,193 57,522
10-12 p.m. 808 32,232
__________ _____________ _________________
Total: 26,354 1,210,146
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 120
Davis 311
Irvine 47
Los Angeles 411
Riverside 0
San Diego 1,540
San Francisco 56
Santa Barbara 132
Santa Cruz 194
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 22,072
Other - UC 1,031
Other-Network UC 439
_____
26,354
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,804
Davis 1,698
Irvine 735
Los Angeles 5,868
Riverside 0
San Diego 7,851
San Francisco 1,617
Santa Barbara 2,236
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 3
Los Alamos 0
MELWEB 1,162,486
Other - UC 16,785
Other-Network UC 8,063
_____
1,210,146
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 6.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.5
Standard deviation in seconds 1.0
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 23:19
Average session length (minutes:seconds) 25:22
Longest session recorded (minutes:seconds) 360:42
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 670.4
Retrievals per search - standard deviation 6156.2
Percent of searches completed with 0 results 20.6%
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 26,354 9.6%
PRESENT 239,266 87.3%
INIT or CLOSE 8,159 3.0%
OTHER 181 0.1%
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 9,659 25.0% 1,893 19.6% 9 66.3 1472.7
TITLE WORD 2,996 7.8% 935 31.2% 2 105.0 860.2
EXACT TITLE 395 1.0% 207 52.4% 1 7.8 29.9
JOURNAL 1,632 4.2% 614 37.6% 6 752.0 2409.0
EXACT JOURNAL 466 1.2% 187 40.1% 232 1074.9 2285.7
SUBJECT 1,687 4.4% 725 43.0% 42 1347.9 5866.5
EXACT SUBJECT 439 1.1% 173 39.4% 97 1177.5 3677.5
KEYWORD 12,768 33.0% 1,931 15.1% 41 1340.5 9355.5
AUTHOR AFFIL 73 0.2% 47 64.4% 28 601.4 1742.6
FORM/PUB TYPE 872 2.3% 161 18.5% 54 1024.9 5403.9
DATE 1,641 4.2% 326 19.9% 26 341.3 1276.7
ADDED 429 1.1% 380 88.6% 5 10.0 18.9
CONFERENCE 9 0.0% 6 66.7% 11 608.7 1043.9
LANGUAGE 2,484 6.4% 511 20.6% 73 1746.9 10759.3
ISSN 6 0.0% 6 100% 0 0.0 0.0
ISBN 3 0.0% 2 66.7% 1 1.0 0.0
ID NUMBER 5 0.0% 5 100% 0 0.0 0.0
XXS 50 0.1% 17 34.0% 38 723.8 1704.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 143 0.4% 37 25.9% 75 1840.5 8390.8
AT 2,066 5.3% 440 21.3% 51 1227.7 5877.5
Other indexes 830 2.1% 221 26.6% 70 663.2 2855.2
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 7,767 29.5% 2,230 28.7% 14 892.8 7155.2
Single 18,587 70.5% 3,186 17.1% 26 826.1 6800.7
PRESENT commands, by type:
MARC 45.7%
OPAC 35.8%