A Confusion Matrix

What is a Confusion Matrix.A confusion matrix is a table that is used to describe the performance of a classificationmodel (or “classifier”) on a set of test data for which the true values are known.What is Type 1 Error and Type 2 Error in a confusion matrix. Using an exampleexplain the each of the values in a confusion matrix.(5 marks).Type I Error (False Positive Error)-is asserting something as true when in reality it isfalse. Example, predicting that someone is pregnant she is not. The actual outcomebecame false when the prediction was positive.Type II Error ( False negative): This is when a result of testing shows that a conditionfailed while its actual was successfully. This error is committed when we fail to believe atrue condition. Consider the pregnancy example, When we predict that some one isn’tpregnant when in actual sense she is pregnant.Kenneth 54. What is an ROC curve.Is a graphical representation of the ability of binary classifier, in diagnosis, while itsdiscrimination threshold varied. Originally, ROC was used in the theory of signaldetection, however its application has extended to medicine, natural hazards, radiologyand machine learning.Give five advantages of using ROC curve in healthcare data.(5 marks) Several diagnostic tasks on a particular subjects could be compared at the sametime in a ROC space.By visualizing the curve, sensitivity at a specific FPF can be obtained easily. ROC curve analysis can be used to determine optimal cut-off value.In contrast to single measures of sensitivity and specificity, the diagnosticaccuracy, such as AUC driven from this analysis is not affected by decisioncriterion and it is also independent of prevalence of disease since it is based onsensitivity and specificity.. What is overfitting? What is Underfitting? What happens to an over fitted modelwhen it is deployed in the real world application.(5 marks)Overfitting is a situation where a model cannot generalize or fit well on datesets whichare unseen. A sign of overfitting is when the error on the testing dataset is greater than theerror on the training dataset.Kenneth 6Underfitting refers to a model that can neither model the training dataset nor generalizeto new dataset.. A Machine learning with under-fitting is not appropriate because it haspoor performance on the training datasets.6. What is an outliers?If a data point if considerably far from other data points then its an outlier. Take anexample of a classroom where every student is of an average height except threeextremely tall ones, the three data points, in this case, become outliers.What do you do when you have skewed data and outliers?Below are some of the approaches to undertake.Setup a filter in the testing tool to eliminate skewed and outliers.Change the values of outliers or skewed data to according to your data.Remove or change value of outliers during post testing analysis.Why is it important to normalize data before feeding to a supervised NN.Normalization of data ensures that, anomalies that may complicate the data analysis areeliminated. These anomalies may come as a result of deleting data, updating existinginformation, and creating more new information.7. What is deep learning?Kenneth 7According to machinelearningmastery.com, deep learning is a subfield of machinelearning concerned with algorithms inspired by the structure and function of the braincalled artificial neural networks.Why has deep learning gained popularity in the recent years?Deep learning is superior in giving accurate results on very huge datasets, when trainedGive one example where you would apply deep learning to solve the problem andwhy.Automated Driving: as an automotive researcher,i would use deep learning to detect stopsigns, traffic light and pedestrians on the road.I would use deep learning because it is superior in predicting outcome of hugedatasets.The system will possibly train itself to give accurate prediction as automation onroad is very crucial.8. What is convolutional neural network?Is a kind of algorithm of deep learning that recognizes images by taking different imageinputs, assign weights and bias in various aspects of those images.How is it different from deep learning and neural network?How CNN differ from NN- convolutional-neural-network is a subclass of neural-networks which have at least one convolution layer while CNN, has one or more layersof convolution units. A convolution unit receives its input from multiple units from theprevious layer which together create a proximityKenneth 8How CNN differ from deep learning- a convolutional neural network is a class ofdeep neural network,commonly applied to analyze visual imagery while deeplearning have several other classes.Type I Error (False Positive Error)-is asserting something as true when in reality it is false. Example, predicting that someone is pregnant she is not. The actual outcome became false when the prediction was positive.

Don't use plagiarized sources. Get Your Custom Essay on
A Confusion Matrix
From $8/Page
Order Essay
TopWriters4Me
Order NOW For A 10% Discount!
Pages (550 words)
Approximate price: -

Why Choose Us

Quality Papers

Top Writers4me provides the best top-grade academic writing services in compliance with our customers’ instructions. Have your paper written by a certified professional online college homework help writer to produce only high-quality essays with zero plagiarism.

Professional Academic Writers

You can now choose from a pool of online college homework help writers. Choose your writer and have them write the best content for you.Top Writers4me has, over the years, secured a team of the most reliable, experienced, and qualified writers. You can, therefore, trust that your assignment is in good hands.

Affordable Prices

We know that students have very limited budgets. And for that, we always strive to provide only the best, most affordable online college homework help services to our customers. Our goal is to provide top-quality assignment help services to all customers at the lowest, most affordable prices.

On-Time delivery

At Topwriters4me.com, we pay strict attention to deadlines. We recommend you to check out clients’ reviews for assurance that we will complete your assignments within the set deadlines. You can, therefore, trust that your paper will be done within and before the set deadline. Until now, we have not missed a single deadline.

100% Originality

Our Topwriters4me.com homework helper experts write only 100% original and plagiarism-free content for all of our clients. We also have a Quality Assurance Department team that goes through all work submitted by our writers multiple times. You can, therefore, rest assured that any signs of plagiarized or unoriginal content will be rejected before it reaches your portal.

Customer Support 24/7

Topwriters4me.com expert writers are always available 24/7 for customers who need assistance with using our website. You don’t have to check your watch the next time you want to have your assignment written. Our customer support is always available round the clock and ready to listen to your queries. Feel free to contact us via the Chat window or support email: support@topwriters4me.com.

Try it now!

Calculate the price of your order

We'll send you the first draft for approval by at
Total price:
$0.00

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

For years now, Topwriters4me.com has stood as a leader in providing its customers with the best online college homework help service in the industry. And all you have to do is provide us with the details of your order. Leave everything else to us. We’ve always got you covered.

Essays

Essay Writing Services

Since we launched, Topwriters4me.com deserved the best online “college homework help status” thanks to our essay ordering, writing, and delivery process. We deliver nothing but excellence in our results. Our essay writing services include impeccable grammar, zero-plagiarism, proper structure, and conformance to guidelines.

Admissions

Admission and Business Papers

Our top-quality online college homework help services guarantee that you will be accepted into your desired university. You just need to fill out your admission and business papers, and our team of online homework help workers will handle the rest. We will help you achieve and secure the best positions in your admissions forms.

Editing

Editing and Proofreading

At Topwriters4me.com, we have a skilled writing and editing team that’s dedicated to creating, editing, and restructuring for all types of papers. Our online college homework help editing and proofreading team will check, paraphrase, and correct any grammar mistakes on your paper before submitting the final document to you.

Coursework

Technical Papers

At Topwriters4me.com, we pride ourselves in having writers in almost all fields, even the most technical ones. You never have to worry about your paper being too technical for our certified online college homework help writers to handle. Mycoursewriter's team of writers can handle even the most complex writers. We will match your paper to the most competent writer that we believe will handle your paper the best way possible.