Learning weights in perceptrons, Computer Engineering

Assignment Help:

Learning Weights in Perceptrons:

Furthermore details are we will look at the learning method for weights in multi-layer networks next lecture. Thus the following description of learning in perceptrons will help to clarify what is going on in the multi-layer case. According to the situation we are in a machine learning setting means we can expect the task to be to learn a target function wh into categories that given as at least a set of training examples supplied with their correct categorisations. However a little thought will be required in order to choose the correct way of thinking about the examples as input to a set of input units so due to the simple nature of a perceptron  there isn't much choice for the rest of the architecture. 

Moreover in order to produce a perceptron able to perform our categorisation task that we need to use the examples to train the weights between the input units and the output unit just to train the threshold. In fact to simplify the routine here we think of the threshold as a special weight that comes from a special  input node in which always outputs as 1. Thus we think of our perceptron like as:  each categorises examples

659_Learning Weights in Perceptrons.png

After then we can justify that the output from the perceptron is +1 if the weighted sum  from all the input units as including the special one is greater than zero but here if it outputs -1 otherwise. According to justification we see that weight w0 is simply the threshold value. Moreover thinking of the network such this means we can train w0 in the same way as we train all the other weights.


Related Discussions:- Learning weights in perceptrons

What are null values, What are null values? If the value of a field in ...

What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.

What are escape sequences characters, What are escape sequences characters?...

What are escape sequences characters? List any six of them.  The characters which when used with output functions like printf( ),putc(),put() etc. helps in formatting the outpu

What is a switchboard, What is a switchboard A switchboard is only a f...

What is a switchboard A switchboard is only a form with command button that open other switchboard or perform tasks like opening forms and printing reports. Switchboard is a t

Show library, Show Library and its types. Libraries constitute a simple...

Show Library and its types. Libraries constitute a simple meaning of gathering many object files together: 1. Static: during link editing Library code is integrated with t

Define intranet, Intranet : An Intranet is a type of information system...

Intranet : An Intranet is a type of information system that facilitates communication within the organizations between widely dispersed departments, divisions, and regional loc

What is home banking, Home Banking: E-commerce is used in Home Banking ...

Home Banking: E-commerce is used in Home Banking as single call or single click. Online banking (Internet banking) is a term used for performing transactions, payments etc. ove

How sensors uses in real time process control, How sensors uses in real tim...

How sensors uses in real time process control Sensors send data (through an analogue to digital converter - ADC) to a microprocessor or computer that decides whether or not to

What is write-back or copy-back protocol, What is write-back or copy-back p...

What is write-back or copy-back protocol? For a write operation using this protocol during write-hit: the method is to update only the cache and to mark it as updated with an a

Implemented in a program developed for sorting , A student counted up the n...

A student counted up the number of statements implemented in a program developed for sorting n integers and came up with a recurrence of the form: T(n) = a * n + b + 2T(n/2), an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd