PLEASE HELP, I am stuck!!!

Hi everybody and happy new year to all of you.
I am asking for your help because I am really not getting anywhere with my project. So you guys are my last hope.
I am a newbie to data mining and I am doing my best to learn the basics so that I get started with my project.
I guess my problem, is the fact that I am new to data mining and I have no clue how to get started. The approach I have been following is trying to read books about data mining and machine learning so that I can understand and compare all the "numerous" algorithms out there and then try to find to the one(s) that would apply to my case.
The first problem with this approach is that I did not find any good resources (either the subjects are treated on the surface or they are overly made complex and hard to follow through). The second problem is that it is incredibly time consuming. So I am wondering if I should continue in this path or if I should try to proceed differently.
I am sure that a lot of you guys have been in the same position and some of you have struggled with this problem just like me. So, I am hopping that you guys would suggest a method that would help me get started.
The project I am working on is related to the field of agriculture and has as objective to try to find the best values of all the parameters that affect the outcome (the amount of meat produced) of an animal production (could be dairy, poultry, porch, etc...)
So as I said, the approach is to run one or more algorithms on historical data for a certain type of production (poultry for example) and trying to find what should be the best values for the operating conditions that would maximize the growth of the animals (weight), while trying to minimize the production costs. A few examples of the questions that this project is trying to solve are as follows: when is the best time and how long should the barns be light? When and how much food should we give the animals? What is the best operating temperature set point? When and how much cooling/heating should be done? , etc....
As you noticed, all these questions are concerned with the optimization of the operating conditions but most importantly, the reduction of operating costs. Huge amounts (10's of Go) of historical data for these operating conditions are to be used for this purpose.
I hope that you guys would kind enough to help me work my way trough this. I would appreciate your help and advice and I thank in advance all of you who took the time to read this lengthy post
Cheers.

You might want to try Explain function in Oracle's Predictive Analytics to find the important factors that influence the production of the more meat based on the historical data that you have.
If you have many times of products (animals), you may have to partition your data and do the explain for each product separately.
After finding the important factors, you may have to use domain expertize to select the important attributes which you can focus on and reduce the money spend on not-important attributes.
You can also try clustering to find the product (animal) clusters. As Oracle Clusters provide the attribute details and rules associated with the clusters. By inspecting these clusters one can get a better understanding of the attributes. For example, if you get a cluster which has maximum %ge of good products (healthy animals with good weight) in it, then by inspecting this cluster you can inspect other attribute values in that cluster to get a better understanding of why in that cluster you have good products and then using domain knowledge you can derive the results.
Another possibility, decision tree to derive the product profiles. Let us say, your data has column called "Animal Weight" that has three values High-Medium-Low. You can build a decision tree model using "Animal Weight" as the target attribute that you want to predict. After the decision tree is build, you can inspect the rules associated with each target values.
Data mining needs a good deal of experimentation to get the results. These are some of the possibilities that I can think of to start with. But it is not limited to this. You can think of combining Data Mining with optimization techniques etc. Also, it is important to have the right data for the right problem.
Good luck with your effort. You can try ODMr tool to experiment with these. There are Java and PL/SQL API's that will help you in integrating or developing any custome application.
-Sunil

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http://tomcat.apache.org/connectors-doc/miscellaneous/faq.html
http://tomcat.apache.org/faq/connectors.html
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Daljit Singh
Message was edited by:
Daljit

Thanks for replying Reega, here is the required
info:
SQL> select p1text, p1, p2text, p2, p3text, p3 from
v$session where sid=1026;
P1TEXT
1
P2TEXT
2
P3TEXT
3
file#
block#
16937
blocks
6
Actually Reega had a good point, not sure why he didn't go down the route.
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Check article you might find useful,
Oracle wait tuning with v$session_wait

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Philly_Phan
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My IPad doesn't charge 100%
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My IPad doesn't charge 100%
https://discussions.apple.com/thread/4047393
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import java.io.*;
import java.security.*;
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import java.security.cert.X509Certificate;
import java.security.spec.*;
import java.util.Collection;
import java.util.Iterator;
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} First of all :
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2)I am getting following exception after
Signature sig = Signature.getInstance("SHA1withDSA","SUN");"
sig.initVerify(pubKey);
Caught exception java.security.InvalidKeyException: not a DSA public key: algorithm = SHA1withDSA, params unparsed, unparsed keybits =
0000: 02 41 00 91 89 17 2D 83 2D 19 51 96 8F D3 A7 CE .A....-.-.Q.....
0010: 33 E7 B0 1F 6C 79 F4 91 3E B5 5E 81 92 42 65 BA 3...ly..>.^..Be.
0020: 56 F8 8B F4 FF 54 4F D6 ED 38 A4 71 BD BE D4 69 V....TO..8.q...i
0030: 21 02 E3 CD 48 96 BC B3 14 F4 42 90 4D 38 5C 78 !...H.....B.M8\x
0040: D3 26 58 .&X
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Hi,
I am getting the same issue using JDK 1.4.2 regarding the "not a DSA public key" error.
I also tried using Bouncy Castle instead, but also fail at the verify step (although with a slightly different error):
"java.security.NoSuchAlgorithmException: no such algorithm: SHA
1with1.3.14.3.2.27 for provider BC"
My initial attempt using the Sun classes looks very much like the original example above. My Bouncy Castle implementation looks like:
Provider bc = new BouncyCastleProvider();
Security.insertProviderAt( bc, 1 );
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Iterator it = c.iterator();
while (it.hasNext())
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Collection certCollection = certs.getCertificates( signer.getSID() );
Iterator certIt = certCollection.iterator();
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logger.debug( "Verified!" );
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e.printStackTrace();
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2006-04-26 14:06:46,882 - Cert =
[0] Version: 1
SerialNumber: 0
IssuerDN: CN=ID3
Start Date: Tue Sep 30 20:00:00 EDT 1997
Final Date: Thu Dec 31 19:00:00 EST 2037
SubjectDN: CN=ID3
Public Key: DSA Public Key
y: 9189172d832d1951968fd3a7ce33e7b01f6c79f4913eb55e81924265ba56f88bf4ff544fd6ed38a471bdbed4692102e3cd4896bcb314f442904d385c78d32658
Signature Algorithm: SHA1withDSA
Signature: 302c0214163774149d7a9ac672aa6beb0af7c5b1
bee965be02144c9bf7da70a24dc644f788a8096e
9ed1f1777741
2006-04-26 14:06:46,882 - Cert Sig Alg = SHA1withDSA
2006-04-26 14:06:46,882 - Pub Key Alg = DSA
06/04/26 14:06:46 java.security.NoSuchAlgorithmException: no such algorithm: SHA
1with1.3.14.3.2.27 for provider BC
06/04/26 14:06:46 at java.security.Security.getEngineClassName(Security.java:723)
06/04/26 14:06:46 at java.security.Security.getEngineClassName(Security.java:693)
06/04/26 14:06:46 at java.security.Security.getImpl(Security.java:1132)
06/04/26 14:06:46 at java.security.Signature.getInstance(Signature.java:218)
06/04/26 14:06:46 at org.bouncycastle.cms.CMSSignedHelper.getSignatureInst
ance(CMSSignedHelper.java:171)
06/04/26 14:06:46 at org.bouncycastle.cms.SignerInformation.doVerify(Signe
rInformation.java:261)
06/04/26 14:06:46 at org.bouncycastle.cms.SignerInformation.verify(SignerInformation.java:494)
...truncated...
I see that the original post is quite old. Was anyone able to figure out the issue? What am I missing?
Thanks,
Brian

ITunes wont open, cant uninstall, cant upgrade, cant reinstall. please help

recently, itunes decided not to open. no error message, no computer lockup, just not open. so when i tried to reinstall via add/remove programs, the installer opened, and acted normal, said it was validating install, then when it got to removing old program, it froze and a windowsey-looking error message popped up saying that "the feature you are trying to use is on a network resource that is unavaliable" "click ok to try again or enter an alternate path to a folder containing the installation package 'itunes.msi' in the box below" [dropdown+browse button]. the dropdown lists 2 file paths one being in the temp files in mydox and the other being in some application cache files in some system folder. neither works.
please help! im stuck! i have tried uninstalling, reinstalling, repairing, downloading the most recent and trying to install that, and even downloading an older version, and i all get the same error message.

a windowsey-looking error message popped up saying that "the feature you are trying to use is on a network resource that is unavaliable" "click ok to try again or enter an alternate path to a folder containing the installation package 'itunes.msi' in the box below" [dropdown+browse button]. the dropdown lists 2 file paths one being in the temp files in mydox and the other being in some application cache files in some system folder. neither works.
with those symptoms, let's try the following procedure.
first, head into your Add/Remove programs and uninstall your QuickTime. if it goes, good. if it doesn't, we'll just attend to it when we attend to itunes.
next, download and install the Windows Installer CleanUp utility. use it to clear any existing itunes and/or QuickTime installation configuration information from the PC.
Description of the Windows Installer CleanUp Utility
next, use the the following document as a guide for manual removal of leftover itunes and quicktime program files:
Removing iTunes and QuickTime for Windows
now try another itunes install. does it go through properly this time?

Os x installation errors please help

Hi i appologize from now if i posted this in the wrong place but i have looked around and cant find anything to help me out i have a 15inch macbook pro with no operating system at all. It had 10.5.7 version of operating system x but my sisters friend who is computer illeterate thought he could install 10.6 but he was wrong he ended up deleting the operating system which leaves my sister without her laptop ive tried installing 10.6 but it tells me that it cannot install then quits but every forum i go to tells me that it should work with this laptop
MacBook pro 3.1
intel core 2 duo
2.2 GHz
Number of processors: 1
Number of cores: 2
Memory: 2 gb
L2 cache: 4mb
please help i am stuck with a 1500 dollar laptop that isnt working

The installation disk I´m tryin with is from an 15-inch Macbook Pro I`ve recently bought. The system is snow leopard and I´m trying to install it in my macbook 13 Mac Os X 10.5.5 (originallay leopard) I don´t know if that´s a problem. I´m not using an update dvd. I think the problem is going by the post Mac fix it.
I read that anyone who has a macbook intel could install snow leopard so I decided to try but it´s too hard. Thanks for trying to helping us.
PD. Sorry about my english

PLEASE HELP, I am stuck!!!

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