Multi-layer network architectures, Computer Engineering

Assignment Help:

Multi-Layer Network Architectures:

As we considered we saw in the previous lecture that perceptrons have limited scope in the type of concepts that they can learn - but they can only learn linearly separable functions. Moreover, we can think of constructing larger networks by building them out of perceptrons. So in generally such larger networks that we call the step function units the perceptron units are in multi-layer networks.

However as with individual perceptrons there multi-layer networks can be used for learning tasks. In fact, the learning algorithm in which we look at as the backpropagation routine is derived mathematically by utilising differential calculus. Hence the derivation relies on having a differentiable threshold function that effectively rules out using perceptron units so if we want to be sure that backpropagation works correctly. Conversely the step function in perceptrons is not continuous, thus non-differentiable. If there an alternative unit was therefore chosen that had similar properties to the step function in perceptron units but that was differentiable.


Related Discussions:- Multi-layer network architectures

What is assembly, What is assembly Assemblies are the building blocks o...

What is assembly Assemblies are the building blocks of .NET Framework applications; they variety the fundamental unit of deployment, version control, reuse, activation scoping,

State the hardware faults and softwate faults, State the hardware faults an...

State the hardware faults and softwate faults - protection against hardware faults could be to keep backups or use GFS; use of UPS (in case of power loss) and parallel system a

Why timing signal distributor required, Q. Why Timing Signal Distributor r...

Q. Why Timing Signal Distributor required? What do you mean by Memory Cycle? How many Memory Cycles required for following instructions: 1. ADD 2. CLEAR and ADD 3. DC

Define atomic directive in fortan, Q. Define Atomic Directive in FORTAN? ...

Q. Define Atomic Directive in FORTAN? Atomic directive guarantees a specific storage location is updated atomically rather than exposing it to odds of multiple simultaneous wri

What is scenarios, Scenarios encapsulate the Vuser Groups and scripts to be...

Scenarios encapsulate the Vuser Groups and scripts to be implemented on load generators at run-time. Manual scenarios can deal out the total number of Vusers between scripts bas

Overflow or underflow for floating point numbers, In floating point numbers...

In floating point numbers when so you say that an overflow or underflow has occurred? Ans: A) In single precision numbers when an exponent is less than +127 then we say that

Define the circular shifts, Q. Define the Circular shifts ? Circular sh...

Q. Define the Circular shifts ? Circular shifts ROTATE RIGHT andROTATE LEFT. Bits shifted out at one end of word are not lost as in a logical shift however are circulated back

Classifier with classes, Consider one versus the rest voting used for class...

Consider one versus the rest voting used for classifier with three classes {a, b, c}. Given a row of data denoted as x0 suppose that the classifier for a versus the rest predicts t

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