## What are the applications of K nearest neighbors KNN algorithm?

The KNN algorithm can compete with the most accurate models because it makes highly accurate predictions. Therefore, you can use the KNN algorithm for applications that require high accuracy but that do not require a human-readable model. The quality of the predictions depends on the distance measure.

## What are the applications of KNN?

Applications of KNN

- Text mining.
- Agriculture.
- Finance.
- Medical.
- Facial recognition.
- Recommendation systems (Amazon, Hulu, Netflix, etc)

**How is KNN used in real life?**

Recurrent neural networks (RNN) are the state of the art algorithm for sequential data and are used by Apple’s Siri and and Google’s voice search. It is the first algorithm that remembers its input, due to an internal memory, which makes it perfectly suited for machine learning problems that involve sequential data.

### What is the goal used by the K nearest neighbor method in classification?

Background. In pattern classification, its goal is to allocate an object represented by a number of measurements (i.e. feature vectors) into one of a finite set of classes. The k-nearest neighbor (k-NN) algorithm is one of the most widely used classification algorithms since it is simple and easy to implement.

### What are the different applications of machine learning?

Applications of Machine learning

- Image Recognition: Image recognition is one of the most common applications of machine learning.
- Speech Recognition.
- Traffic prediction:
- Product recommendations:
- Self-driving cars:
- Email Spam and Malware Filtering:
- Virtual Personal Assistant:
- Online Fraud Detection:

**What is K in K-Nearest Neighbor classifier explain with a proper example?**

KNN algorithms decide a number k which is the nearest Neighbor to that data point that is to be classified. If the value of k is 5 it will look for 5 nearest Neighbors to that data point. In this example, if we assume k=4. KNN finds out about the 4 nearest Neighbors.

#### What is supervised learning algorithm?

A supervised learning algorithm takes a known set of input data (the learning set) and known responses to the data (the output), and forms a model to generate reasonable predictions for the response to the new input data. Use supervised learning if you have existing data for the output you are trying to predict.

#### Why KNN is called lazy algorithm?

Why is the k-nearest neighbors algorithm called “lazy”? Because it does no training at all when you supply the training data. At training time, all it is doing is storing the complete data set but it does not do any calculations at this point.