MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/99 through 06/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 751 20,449
2-4 a.m. 470 12,550
4-6 a.m. 74 3,668
6-8 a.m. 279 6,236
8-10 a.m. 2,560 70,744
10-12 a.m. 6,090 228,684
12-2 p.m. 7,294 282,050
2-4 p.m. 8,399 333,284
4-6 p.m. 6,569 265,691
6-8 p.m. 3,770 153,576
8-10 p.m. 2,773 126,911
10-12 p.m. 1,745 71,857
__________ _____________ _________________
Total: 40,774 1,575,700
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 96
Irvine 138
Los Angeles 873
Riverside 0
San Diego 1,056
San Francisco 398
Santa Barbara 42
Santa Cruz 248
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 35,767
Other - UC 1,124
Other-Network UC 582
_____
40,774
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,368
Davis 212
Irvine 246
Los Angeles 3,564
Riverside 0
San Diego 785
San Francisco 3,550
Santa Barbara 443
Santa Cruz 890
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,521,231
Other - UC 33,086
Other-Network UC 8,325
_____
1,575,700
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.9
Standard deviation in seconds 5.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 PSYCINFO Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 25:27
Average session length (minutes:seconds) 29:07
Longest session recorded (minutes:seconds) 295:40
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 828.8
Retrievals per search - standard deviation 7297.8
Percent of searches completed with 0 results 24.6%
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 40,774 11.3%
PRESENT 308,388 85.7%
INIT or CLOSE 10,194 2.8%
OTHER 512 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 13,148 20.1% 3,441 26.2% 8 135.8 3867.8
TITLE WORD 4,237 6.5% 1,611 38.0% 2 179.7 3547.8
EXACT TITLE 937 1.4% 588 62.8% 1 9.7 79.1
JOURNAL 2,848 4.4% 1,148 40.3% 4 1001.6 8088.6
EXACT JOURNAL 700 1.1% 318 45.4% 106 885.8 1922.8
SUBJECT 3,007 4.6% 1,412 47.0% 70 2421.9 12564.6
EXACT SUBJECT 818 1.3% 329 40.2% 112 1276.9 3597.0
KEYWORD 21,299 32.6% 3,745 17.6% 43 1515.0 10048.8
AUTHOR AFFIL 124 0.2% 104 83.9% 10 37.4 69.3
FORM/PUB TYPE 2,133 3.3% 533 25.0% 36 483.7 2141.9
DATE 2,941 4.5% 722 24.5% 13 301.7 1284.9
ADDED 89 0.1% 79 88.8% 2 18.6 52.1
CONFERENCE 4 0.0% 4 100% 0 0.0 0.0
LANGUAGE 4,945 7.6% 1,133 22.9% 91 1654.3 7850.5
ISSN 3 0.0% 3 100% 0 0.0 0.0
ISBN 6 0.0% 6 100% 0 0.0 0.0
ID NUMBER 7 0.0% 7 100% 0 0.0 0.0
XXS 87 0.1% 17 19.5% 38 1044.7 2473.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 419 0.6% 119 28.4% 68 812.3 2857.3
AT 6,327 9.7% 1,577 24.9% 61 1296.3 5793.9
Other indexes 1,313 2.0% 426 32.4% 37 505.6 1790.9
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 14,640 35.9% 4,320 29.5% 19 1051.9 6870.8
Single 26,134 64.1% 5,711 21.9% 28 1123.1 9056.9
PRESENT commands, by type:
MARC 44.8%
OPAC 40.7%