MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/00 through 11/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,235 57,267
2-4 a.m. 365 13,176
4-6 a.m. 259 8,754
6-8 a.m. 616 23,758
8-10 a.m. 5,255 193,218
10-12 a.m. 14,706 547,849
12-2 p.m. 19,159 762,678
2-4 p.m. 21,893 881,845
4-6 p.m. 15,886 623,881
6-8 p.m. 9,998 363,429
8-10 p.m. 7,518 286,352
10-12 p.m. 4,385 185,671
__________ _____________ _________________
Total: 102,275 3,947,878
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 101
Davis 144
Irvine 188
Los Angeles 393
Riverside 237
San Diego 650
San Francisco 240
Santa Barbara 170
Santa Cruz 5
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 86,743
Searchlight 10,000
Other - UC 2,361
Other-Network UC 1,043
_____
102,275
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1,257
Davis 1,828
Irvine 2,562
Los Angeles 7,349
Riverside 3,394
San Diego 6,049
San Francisco 4,819
Santa Barbara 2,594
Santa Cruz 91
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,836,693
Searchlight 5,226
Other - UC 57,215
Other-Network UC 18,801
_____
3,947,878
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 7.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:27
Average session length (minutes:seconds) 23:25
Longest session recorded (minutes:seconds) 288:09
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 833.3
Retrievals per search - standard deviation 7291.5
Percent of searches completed with 0 results 21.7%
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 102,275 11.4%
PRESENT 757,163 84.5%
INIT or CLOSE 35,116 3.9%
OTHER 1,177 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 25,793 15.7% 5,150 20.0% 7 70.5 1387.1
TITLE WORD 10,759 6.6% 3,238 30.1% 2 151.7 2949.6
EXACT TITLE 2,040 1.2% 1,015 49.8% 1 28.4 232.7
JOURNAL 6,397 3.9% 2,301 36.0% 7 1333.4 10881.6
EXACT JOURNAL 1,886 1.2% 728 38.6% 21 805.3 2072.1
SUBJECT 7,061 4.3% 2,795 39.6% 52 1369.3 7021.2
EXACT SUBJECT 1,498 0.9% 481 32.1% 143 1733.4 5776.1
KEYWORD 60,723 37.1% 11,148 18.4% 30 1324.6 9402.4
AUTHOR AFFIL 183 0.1% 143 78.1% 16 105.0 466.0
FORM/PUB TYPE 6,164 3.8% 1,260 20.4% 39 732.2 3967.5
DATE 7,953 4.9% 1,426 17.9% 20 516.2 2293.3
ADDED 568 0.3% 517 91.0% 5 12.2 20.7
CONFERENCE 10 0.0% 8 80.0% 297 296.5 146.4
LANGUAGE 10,828 6.6% 2,195 20.3% 52 1218.0 6204.6
ISSN 15 0.0% 6 40.0% 7 370.6 847.2
ISBN 38 0.0% 22 57.9% 15 13.6 8.0
ID NUMBER 22 0.0% 20 90.9% 6 5.5 6.4
XXS 129 0.1% 48 37.2% 78 2114.0 8593.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 903 0.6% 227 25.1% 84 902.6 3123.6
AT 16,280 9.9% 3,356 20.6% 34 1244.1 7139.9
Other indexes 4,539 2.8% 1,180 26.0% 49 1809.2 9912.3
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 35,164 34.4% 8,376 23.8% 17 837.6 5803.1
Single 67,111 65.6% 13,777 20.5% 23 1177.3 9199.5
PRESENT commands, by type:
MARC 43.3%
OPAC 39.4%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)