MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/00 through 05/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 986 29,166
2-4 a.m. 447 8,213
4-6 a.m. 128 3,818
6-8 a.m. 374 12,754
8-10 a.m. 2,734 89,595
10-12 a.m. 6,972 249,801
12-2 p.m. 8,799 337,454
2-4 p.m. 9,893 384,969
4-6 p.m. 8,229 338,695
6-8 p.m. 5,202 252,790
8-10 p.m. 4,009 172,520
10-12 p.m. 2,595 110,009
__________ _____________ _________________
Total: 50,368 1,989,784
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 111
Davis 77
Irvine 36
Los Angeles 257
Riverside 0
San Diego 782
San Francisco 98
Santa Barbara 3
Santa Cruz 26
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 44,689
Searchlight 3,160
Other - UC 727
Other-Network UC 402
_____
50,368
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,365
Davis 775
Irvine 284
Los Angeles 2,568
Riverside 0
San Diego 2,361
San Francisco 1,338
Santa Barbara 13
Santa Cruz 731
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,959,572
Searchlight 0
Other - UC 8,174
Other-Network UC 11,603
_____
1,989,784
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 2.1
Standard deviation in seconds 5.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 1.2
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:14
Average session length (minutes:seconds) 22:35
Longest session recorded (minutes:seconds) 226:07
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 667.9
Retrievals per search - standard deviation 5859.8
Percent of searches completed with 0 results 22.1%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 50,368 11.4%
PRESENT 371,488 84.1%
INIT or CLOSE 18,026 4.1%
OTHER 1,616 0.4%
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 12,725 15.6% 2,551 20.0% 7 47.4 246.8
TITLE WORD 5,065 6.2% 1,468 29.0% 2 97.2 547.3
EXACT TITLE 935 1.1% 382 40.9% 1 14.1 111.3
JOURNAL 2,605 3.2% 909 34.9% 6 839.9 7007.5
EXACT JOURNAL 914 1.1% 452 49.4% 12 872.6 2437.9
SUBJECT 3,192 3.9% 1,411 44.2% 49 1735.3 7892.5
EXACT SUBJECT 709 0.9% 274 38.6% 99 1802.5 6772.7
KEYWORD 31,114 38.3% 5,938 19.1% 28 1056.5 7547.7
AUTHOR AFFIL 62 0.1% 56 90.3% 17 49.7 90.2
FORM/PUB TYPE 3,198 3.9% 692 21.6% 41 573.9 2803.9
DATE 3,862 4.7% 774 20.0% 29 414.7 1567.2
ADDED 376 0.5% 368 97.9% 2 341.6 956.2
CONFERENCE 3 0.0% 3 100% 0 0.0 0.0
LANGUAGE 5,618 6.9% 1,195 21.3% 60 1134.5 5485.6
ISSN 16 0.0% 14 87.5% 208 208.0 100.4
ISBN 5 0.0% 5 100% 0 0.0 0.0
ID NUMBER 5 0.0% 5 100% 0 0.0 0.0
XXS 112 0.1% 54 48.2% 35 178.8 278.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 534 0.7% 132 24.7% 48 1060.5 5624.5
AT 8,175 10.1% 1,635 20.0% 42 1041.1 5441.5
Other indexes 2,106 2.6% 661 31.4% 45 1045.9 7206.6
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 17,400 34.5% 4,249 24.4% 18 714.0 4379.2
Single 32,968 65.5% 6,907 20.9% 21 930.6 7511.7
PRESENT commands, by type:
MARC 43.3%
OPAC 40.9%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)