MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/00 through 03/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,739 54,518
2-4 a.m. 763 14,147
4-6 a.m. 158 3,863
6-8 a.m. 610 17,249
8-10 a.m. 3,972 162,485
10-12 a.m. 9,931 393,525
12-2 p.m. 13,658 543,133
2-4 p.m. 15,059 630,191
4-6 p.m. 11,119 473,546
6-8 p.m. 7,494 321,553
8-10 p.m. 5,949 231,229
10-12 p.m. 3,357 134,377
__________ _____________ _________________
Total: 73,809 2,979,816
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 191
Davis 251
Irvine 94
Los Angeles 395
Riverside 0
San Diego 1,532
San Francisco 265
Santa Barbara 90
Santa Cruz 54
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 67,138
Searchlight 1,044
Other - UC 983
Other-Network UC 1,772
_____
73,809
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,929
Davis 2,056
Irvine 2,065
Los Angeles 5,877
Riverside 0
San Diego 11,076
San Francisco 4,980
Santa Barbara 1,945
Santa Cruz 427
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,892,726
Searchlight 6,473
Other - UC 16,147
Other-Network UC 29,115
_____
2,979,816
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 5.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 1.1
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 21:47
Average session length (minutes:seconds) 21:33
Longest session recorded (minutes:seconds) 245:18
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 722.3
Retrievals per search - standard deviation 6426.4
Percent of searches completed with 0 results 21.4%
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 73,809 10.7%
PRESENT 589,441 85.5%
INIT or CLOSE 24,710 3.6%
OTHER 1,511 0.2%
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 21,751 18.6% 4,170 19.2% 7 58.5 626.4
TITLE WORD 7,572 6.5% 2,150 28.4% 2 77.1 494.4
EXACT TITLE 1,455 1.2% 704 48.4% 1 19.8 134.1
JOURNAL 4,401 3.8% 1,440 32.7% 6 1115.8 8722.6
EXACT JOURNAL 1,422 1.2% 571 40.2% 24 1058.4 2470.8
SUBJECT 4,617 3.9% 1,967 42.6% 54 1607.2 6847.9
EXACT SUBJECT 1,233 1.1% 472 38.3% 108 1815.2 5992.7
KEYWORD 42,232 36.1% 7,844 18.6% 31 1180.3 8460.9
AUTHOR AFFIL 170 0.1% 142 83.5% 10 543.3 1872.3
FORM/PUB TYPE 4,243 3.6% 894 21.1% 30 563.6 2877.4
DATE 5,152 4.4% 900 17.5% 11 378.2 2026.6
ADDED 639 0.5% 558 87.3% 5 14.5 25.6
CONFERENCE 7 0.0% 7 100% 0 0.0 0.0
LANGUAGE 7,374 6.3% 1,540 20.9% 50 1057.6 5684.1
ISSN 6 0.0% 0 0.0% 297 258.5 194.6
ISBN 12 0.0% 10 83.3% 8 8.0 9.9
ID NUMBER 10 0.0% 10 100% 0 0.0 0.0
XXS 110 0.1% 49 44.5% 63 910.6 2253.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 528 0.5% 120 22.7% 72 919.1 2970.0
AT 11,533 9.9% 2,293 19.9% 33 921.5 5235.8
Other indexes 2,600 2.2% 665 25.6% 41 1602.2 9967.4
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 25,991 35.2% 6,140 23.6% 14 654.7 4473.6
Single 47,818 64.8% 9,692 20.3% 23 1057.5 8318.7
PRESENT commands, by type:
MARC 46.2%
OPAC 37.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)