MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/99 through 11/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,666 61,117
2-4 a.m. 419 13,308
4-6 a.m. 94 3,514
6-8 a.m. 475 16,144
8-10 a.m. 3,850 196,390
10-12 a.m. 9,085 436,649
12-2 p.m. 12,793 599,551
2-4 p.m. 13,992 655,450
4-6 p.m. 10,234 509,301
6-8 p.m. 6,414 336,345
8-10 p.m. 4,873 248,040
10-12 p.m. 2,994 152,394
__________ _____________ _________________
Total: 66,889 3,228,203
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 450
Davis 504
Irvine 14
Los Angeles 407
Riverside 0
San Diego 1,563
San Francisco 277
Santa Barbara 120
Santa Cruz 332
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 60,672
Other - UC 1,757
Other-Network UC 793
_____
66,889
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 11,839
Davis 6,905
Irvine 171
Los Angeles 5,189
Riverside 0
San Diego 1,859
San Francisco 5,228
Santa Barbara 1,564
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,149,387
Other - UC 37,864
Other-Network UC 8,197
_____
3,228,203
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 8.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 25:38
Average session length (minutes:seconds) 29:08
Longest session recorded (minutes:seconds) 344:54
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 848.1
Retrievals per search - standard deviation 6924.9
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 66,889 9.7%
PRESENT 603,326 87.5%
INIT or CLOSE 18,698 2.7%
OTHER 638 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 18,457 16.3% 3,901 21.1% 8 61.2 953.8
TITLE WORD 7,594 6.7% 2,500 32.9% 2 161.2 2890.2
EXACT TITLE 1,429 1.3% 716 50.1% 1 71.1 1408.2
JOURNAL 4,202 3.7% 1,593 37.9% 9 1169.7 6722.9
EXACT JOURNAL 1,469 1.3% 642 43.7% 61 1334.9 9507.5
SUBJECT 5,815 5.1% 2,430 41.8% 51 1541.5 6202.0
EXACT SUBJECT 1,733 1.5% 613 35.4% 103 1438.8 4519.6
KEYWORD 36,812 32.5% 5,731 15.6% 40 1447.3 9531.4
AUTHOR AFFIL 172 0.2% 127 73.8% 22 519.9 1599.5
FORM/PUB TYPE 4,105 3.6% 1,042 25.4% 49 669.6 4889.0
DATE 5,687 5.0% 1,223 21.5% 26 431.3 1893.6
ADDED 616 0.5% 545 88.5% 3 31.9 68.8
CONFERENCE 10 0.0% 5 50.0% 2 995.0 2219.9
LANGUAGE 9,433 8.3% 2,010 21.3% 71 1361.0 6180.4
ISSN 5 0.0% 3 60.0% 101 100.5 136.5
ISBN 9 0.0% 9 100% 0 0.0 0.0
ID NUMBER 12 0.0% 12 100% 0 0.0 0.0
XXS 71 0.1% 30 42.3% 88 1697.9 3768.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 782 0.7% 226 28.9% 83 1971.0 9351.4
AT 11,681 10.3% 2,357 20.2% 46 1174.2 5755.0
Other indexes 3,043 2.7% 750 24.6% 61 631.5 2442.9
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 25,120 37.6% 6,431 25.6% 21 887.9 5373.1
Single 41,769 62.4% 7,880 18.9% 26 1184.3 8849.5
PRESENT commands, by type:
MARC 42.4%
OPAC 42.1%