MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/99 through 05/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 878 36,141
2-4 a.m. 278 9,304
4-6 a.m. 119 2,988
6-8 a.m. 370 11,537
8-10 a.m. 3,397 119,981
10-12 a.m. 8,441 311,369
12-2 p.m. 11,041 425,517
2-4 p.m. 13,542 521,760
4-6 p.m. 9,506 372,825
6-8 p.m. 5,439 226,850
8-10 p.m. 4,976 208,862
10-12 p.m. 2,685 101,490
__________ _____________ _________________
Total: 60,672 2,348,624
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 328
Davis 43
Irvine 57
Los Angeles 551
Riverside 1
San Diego 1,929
San Francisco 116
Santa Barbara 72
Santa Cruz 456
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 54,253
Other - UC 1,929
Other-Network UC 937
_____
60,672
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,042
Davis 407
Irvine 104
Los Angeles 9,508
Riverside 0
San Diego 5,730
San Francisco 2,735
Santa Barbara 876
Santa Cruz 660
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,262,029
Other - UC 52,616
Other-Network UC 7,917
_____
2,348,624
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 3.7
Standard deviation in seconds 9.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.3
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 26:45
Average session length (minutes:seconds) 30:23
Longest session recorded (minutes:seconds) 265:25
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1118.7
Retrievals per search - standard deviation 9304.0
Percent of searches completed with 0 results 26.2%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 60,672 11.1%
PRESENT 470,036 86.3%
INIT or CLOSE 13,830 2.5%
OTHER 286 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 15,178 14.6% 4,205 27.7% 8 90.8 1131.6
TITLE WORD 5,575 5.4% 2,216 39.7% 3 193.7 1946.7
EXACT TITLE 1,405 1.4% 814 57.9% 1 77.0 653.4
JOURNAL 3,719 3.6% 1,630 43.8% 7 1127.6 8294.2
EXACT JOURNAL 1,360 1.3% 602 44.3% 44 1087.2 2397.0
SUBJECT 5,166 5.0% 2,526 48.9% 70 2427.6 12858.6
EXACT SUBJECT 1,568 1.5% 685 43.7% 162 2568.9 10111.0
KEYWORD 35,872 34.5% 7,276 20.3% 39 1918.7 12567.9
AUTHOR AFFIL 208 0.2% 151 72.6% 23 1108.8 2515.8
FORM/PUB TYPE 4,063 3.9% 1,112 27.4% 38 747.8 5197.7
DATE 4,869 4.7% 1,251 25.7% 21 597.2 4723.0
ADDED 155 0.1% 106 68.4% 2 232.9 1443.3
CONFERENCE 8 0.0% 5 62.5% 922 1986.7 2662.7
LANGUAGE 9,305 9.0% 2,321 24.9% 92 2444.2 11988.7
ISSN 17 0.0% 6 35.3% 11 1115.4 1275.6
ISBN 2 0.0% 0 0.0% 1 1.0 0.0
ID NUMBER 14 0.0% 14 100% 0 0.0 0.0
XXS 50 0.0% 15 30.0% 111 3369.0 7996.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 675 0.6% 180 26.7% 65 533.5 1716.9
AT 11,765 11.3% 3,027 25.7% 61 1998.9 10387.2
Other indexes 2,871 2.8% 796 27.7% 60 708.4 5004.2
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 23,276 38.4% 6,906 29.7% 27 1494.9 9020.3
Single 37,396 61.6% 9,019 24.1% 28 1529.5 11713.0
PRESENT commands, by type:
MARC 44.6%
OPAC 42.2%