MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/00 through 12/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,250 24,051
2-4 a.m. 528 10,785
4-6 a.m. 348 8,865
6-8 a.m. 425 12,498
8-10 a.m. 2,813 91,943
10-12 a.m. 6,077 236,304
12-2 p.m. 7,891 306,007
2-4 p.m. 9,290 361,856
4-6 p.m. 7,139 257,707
6-8 p.m. 3,431 114,746
8-10 p.m. 2,728 91,571
10-12 p.m. 1,968 73,379
__________ _____________ _________________
Total: 43,888 1,589,712
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 242
Davis 316
Irvine 58
Los Angeles 385
Riverside 54
San Diego 66
San Francisco 256
Santa Barbara 71
Santa Cruz 13
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 34,952
Searchlight 4,938
Other - UC 1,458
Other-Network UC 1,079
_____
43,888
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,620
Davis 3,731
Irvine 728
Los Angeles 4,037
Riverside 382
San Diego 155
San Francisco 2,483
Santa Barbara 1,152
Santa Cruz 68
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,516,540
Searchlight 5,033
Other - UC 36,688
Other-Network UC 15,095
_____
1,589,712
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 3.8
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 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 21:45
Average session length (minutes:seconds) 21:41
Longest session recorded (minutes:seconds) 306:48
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 689.8
Retrievals per search - standard deviation 6805.7
Percent of searches completed with 0 results 20.9%
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 43,888 11.7%
PRESENT 315,157 84.0%
INIT or CLOSE 15,893 4.2%
OTHER 349 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 16,296 24.7% 2,964 18.2% 8 66.5 1370.1
TITLE WORD 5,182 7.9% 1,451 28.0% 2 92.0 557.9
EXACT TITLE 951 1.4% 395 41.5% 1 20.2 313.4
JOURNAL 2,849 4.3% 920 32.3% 6 1220.0 8428.7
EXACT JOURNAL 705 1.1% 315 44.7% 22 965.5 3229.4
SUBJECT 2,156 3.3% 841 39.0% 37 1272.4 5086.1
EXACT SUBJECT 635 1.0% 189 29.8% 111 1738.1 5615.1
KEYWORD 21,655 32.9% 4,035 18.6% 29 1305.9 9743.9
AUTHOR AFFIL 74 0.1% 56 75.7% 3 13.7 29.4
FORM/PUB TYPE 1,853 2.8% 368 19.9% 32 414.9 1645.4
DATE 3,391 5.1% 487 14.4% 12 241.2 1435.6
ADDED 591 0.9% 499 84.4% 4 85.7 708.6
CONFERENCE 6 0.0% 3 50.0% 5 5.7 1.2
LANGUAGE 3,452 5.2% 683 19.8% 52 905.1 4378.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
ISBN 13 0.0% 9 69.2% 15 18.0 9.8
ID NUMBER 7 0.0% 6 85.7% 1 1.0 0.0
XXS 28 0.0% 5 17.9% 333 869.0 1244.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 280 0.4% 53 18.9% 110 1447.1 5465.1
AT 4,469 6.8% 923 20.7% 36 1264.5 7449.9
Other indexes 1,282 1.9% 340 26.5% 61 1828.7 12900.1
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 14,083 32.1% 3,415 24.2% 10 622.5 5000.6
Single 29,805 67.9% 5,746 19.3% 21 982.3 8552.1
PRESENT commands, by type:
MARC 44.9%
OPAC 33.0%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)