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Understanding machine learning

What is machine learning does?  It Finds patterns in data and uses those patterns to predict the future.          EXAMPLES :  Detecting credit card fraud : You can use machine learning  detect credit card fraud, Suppose you have data about previous credit card transactions. You could find patterns in that data potentially  that allows you to detect when a new credit card transaction is likely to be fraudulent. Determining whether a customer is likely to switch to a competitor :  You could possibly find the patterns in the existing customer data that will help you do that Lots more What does it mean to learn ? Yes it's something like your own learning process. You have learned reading,listening, walking everything by using your experience on it, the data you have in your mind and continuous improvements.  How did you learn to read? Well learning requires identifying patterns. Reading for instance you ...
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Function pass by value vs. pass by reference

Function pass by value vs. pass by reference I will call what you are passing in a to a function the actual parameters, and where you receive them, the parameters in the function, the formal parameters. They are also called actual and formal arguments. When passing parameters, what it is called and what happens can be confusing. It is less essential that you call it the "correct" thing than you know exactly what is happening. It is critical to have a good mental model, a valid memory picture of the process. Recall that when you call a function, a chunk of memory called an activation record is allocated. Critical to the discussion here is that this memory holds the formal parameter values and function local variables. By definition, pass by value means you are making a copy in memory of the actual parameter's value that is passed in, a copy of the contents of the actual parameter. Use pass by value when when you are only "using" the paramet...
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NHibernate Introduction

 NHibernate NHibernate is an open source Object-Relational Mapping (ORM) tool for the .Net platform… and the existing documentation and tutorials that I could find, whilst plentiful, are not aimed at those new to or inexperienced with ORM. This tutorial is based on using Visual Studio (I used 2008 beta 2) and Sql Server, however the database used is almost immaterial (one of the advantages of using an OR mapper). If you already know what NHibernate and ORM are and you want to use it but just need to know how?  Otherwise, read on. WTF is ORM? There is plenty of good stuff out there on what Object-Relational Mapping is, try wikipedia or the intro here (the tutorial is a bit out of date but the explanation is good) or there’s always Google . However, in a nutshell, ORM is the process of mapping business objects (think OOP) to database relations (read tables). An OR Mapper is a tool that manages this process. There are several different OR Mappers available for ...
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