MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 10/01/99 through 10/31/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 940 38,169
2-4 a.m. 466 6,729
4-6 a.m. 104 8,472
6-8 a.m. 321 12,834
8-10 a.m. 3,251 134,112
10-12 a.m. 8,044 368,618
12-2 p.m. 9,473 466,444
2-4 p.m. 11,270 543,176
4-6 p.m. 8,656 391,364
6-8 p.m. 4,885 247,267
8-10 p.m. 4,010 215,254
10-12 p.m. 2,462 113,543
__________ _____________ _________________
Total: 53,882 2,545,982
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 289
Davis 373
Irvine 43
Los Angeles 167
Riverside 0
San Diego 1,308
San Francisco 143
Santa Barbara 420
Santa Cruz 320
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 15,135
Other - UC 34,730
Other-Network UC 954
_____
53,882
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 7,972
Davis 4,868
Irvine 3,304
Los Angeles 3,133
Riverside 0
San Diego 1,320
San Francisco 1,619
Santa Barbara 2,866
Santa Cruz 221
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 784,650
Other - UC 1,723,393
Other-Network UC 12,636
_____
2,545,982
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 2.2
Standard deviation in seconds 11.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.9
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 26:14
Average session length (minutes:seconds) 29:59
Longest session recorded (minutes:seconds) 424:27
Average number of searches completed per session 0.0
Retrievals per search - median 10.0
Retrievals per search - average 848.7
Retrievals per search - standard deviation 6814.2
Percent of searches completed with 0 results 20.5%
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 53,882 9.7%
PRESENT 485,895 87.4%
INIT or CLOSE 15,225 2.7%
OTHER 1,034 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 14,209 16.2% 2,892 20.4% 7 66.2 1346.4
TITLE WORD 5,731 6.5% 1,639 28.6% 3 236.4 2749.1
EXACT TITLE 1,091 1.2% 535 49.0% 1 10.3 74.2
JOURNAL 3,499 4.0% 1,251 35.8% 8 1324.8 8179.5
EXACT JOURNAL 1,266 1.4% 454 35.9% 10 957.8 7295.0
SUBJECT 5,493 6.3% 1,909 34.8% 56 1444.4 8599.8
EXACT SUBJECT 1,126 1.3% 371 32.9% 121 1927.4 6943.8
KEYWORD 30,211 34.4% 4,719 15.6% 36 1371.6 8834.0
AUTHOR AFFIL 101 0.1% 72 71.3% 12 192.7 800.4
FORM/PUB TYPE 3,216 3.7% 710 22.1% 45 783.7 4841.1
DATE 3,807 4.3% 670 17.6% 26 396.8 1621.9
ADDED 605 0.7% 548 90.6% 6 20.4 35.8
CONFERENCE 8 0.0% 3 37.5% 12 20.2 24.7
LANGUAGE 6,928 7.9% 1,459 21.1% 71 1331.6 6333.7
ISSN 2 0.0% 1 50.0% 1,126 1126.0 0.0
ISBN 3 0.0% 3 100% 0 0.0 0.0
ID NUMBER 12 0.0% 11 91.7% 1 1.0 0.0
XXS 123 0.1% 27 21.9% 66 1173.4 3651.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 481 0.5% 107 22.2% 95 784.2 2941.7
AT 7,715 8.8% 1,566 20.3% 43 1327.0 6826.5
Other indexes 2,201 2.5% 596 27.1% 57 789.6 3153.2
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 19,312 35.8% 4,884 25.3% 20 869.9 5449.3
Single 34,570 64.2% 6,147 17.8% 27 1167.4 8518.8
PRESENT commands, by type:
MARC 43.8%
OPAC 40.4%