MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/02 through 01/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,537 34,463
2-4 a.m. 958 9,387
4-6 a.m. 315 2,959
6-8 a.m. 825 13,172
8-10 a.m. 4,279 123,503
10-12 a.m. 11,263 384,465
12-2 p.m. 13,291 461,690
2-4 p.m. 14,240 512,185
4-6 p.m. 9,350 355,234
6-8 p.m. 5,019 197,605
8-10 p.m. 3,915 145,440
10-12 p.m. 2,714 95,006
__________ _____________ _________________
Total: 67,706 2,335,109
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 208
Davis 431
Irvine 75
Los Angeles 1,882
Riverside 36
San Diego 1,224
San Francisco 492
Santa Barbara 58
Santa Cruz 135
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 54,145
Searchlight 7,146
Other - UC 795
Other-Network UC 1,079
_____
67,706
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,368
Davis 2,226
Irvine 5,768
Los Angeles 17,704
Riverside 254
San Diego 5,646
San Francisco 9,560
Santa Barbara 932
Santa Cruz 2,282
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,251,057
Searchlight 5,745
Other - UC 10,412
Other-Network UC 19,155
_____
2,335,109
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 4.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:19
Average session length (minutes:seconds) 23:02
Longest session recorded (minutes:seconds) 237:56
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1339.4
Retrievals per search - standard deviation 12363
Percent of searches completed with 0 results 20.8%
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 67,706 12.0%
PRESENT 471,310 83.5%
INIT or CLOSE 23,502 4.2%
OTHER 2,082 0.4%
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 22,376 22.1% 3,656 16.3% 8 46.7 283.4
TITLE WORD 7,049 7.0% 1,906 27.0% 2 104.0 542.8
EXACT TITLE 1,290 1.3% 547 42.4% 1 29.7 268.8
JOURNAL 3,819 3.8% 1,222 32.0% 6 1226.5 12593.1
EXACT JOURNAL 1,238 1.2% 440 35.5% 50 994.9 2447.4
SUBJECT 2,828 2.8% 1,150 40.7% 46 1772.9 7344.0
EXACT SUBJECT 869 0.9% 279 32.1% 56 1514.8 5812.5
KEYWORD 37,838 37.4% 7,514 19.9% 36 2634.7 17700.5
AUTHOR AFFIL 104 0.1% 66 63.5% 11 1159.8 6489.4
FORM/PUB TYPE 3,462 3.4% 606 17.5% 51 1323.2 4759.3
DATE 5,357 5.3% 884 16.5% 11 547.6 2360.3
ADDED 558 0.6% 459 82.3% 2 7.9 15.5
CONFERENCE 4 0.0% 3 75.0% 2 2.0 0.0
LANGUAGE 5,213 5.1% 933 17.9% 72 1939.8 8374.1
ISSN 2 0.0% 1 50.0% 5,823 5823.0 0.0
ISBN 27 0.0% 13 48.1% 13 12.6 12.3
ID NUMBER 12 0.0% 9 75.0% 1 1.0 0.0
XXS 65 0.1% 9 13.8% 37 3959.8 16690.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 290 0.3% 45 15.5% 64 806.6 2306.2
AT 6,876 6.8% 1,239 18.0% 40 1926.9 9054.6
Other indexes 1,990 2.0% 528 26.5% 48 1820.6 12245.4
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 21,183 31.3% 4,662 22.0% 12 964.9 6122.3
Single 46,523 68.7% 9,438 20.3% 25 2015.4 16160.4
PRESENT commands, by type:
MARC 48.3%
OPAC 32.2%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)