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Cluster Analysis
course content

Course Content

Cluster Analysis

Cluster Analysis

1. What is Clustering?
Formulation Of The ProblemWhat Is Unique About Clustering?Types Of Clustering
2. Basic Clustering Algorithms
K-means Clustering Perform K-means ClusteringAgglomerative ClusteringPerform Agglomerative ClusteringMean Shift Clustering DBSCAN ClusteringPerform DBSCAN ClusteringUsing Clustering On Real Data
3. How to choose the best model?
Internal EvaluationExternal EvaluationQuality Evaluation

bookPerform DBSCAN Clustering

Task

As we mentioned in the previous chapter, DBSCAN algorithm classifies points as core, border, and noise. As a result, we can use this algorithm to clean our data from outliers. Let's create DBSCAN model, clean data, and look at the results.

Your task is to train DBSCAN model on the circles dataset, detect noise points, and remove them. Look at the visualization and compare data before and after cleaning. You have to:

  1. Import the DBSCAN class from sklearn.cluster module.
  2. Use DBSCAN class and .fit() method of this class.
  3. Use .labels_ attribute of DBSCAN class.
  4. Specify clustering.labels_==-1 to detect noise.

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Section 2. Chapter 7
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bookPerform DBSCAN Clustering

Task

As we mentioned in the previous chapter, DBSCAN algorithm classifies points as core, border, and noise. As a result, we can use this algorithm to clean our data from outliers. Let's create DBSCAN model, clean data, and look at the results.

Your task is to train DBSCAN model on the circles dataset, detect noise points, and remove them. Look at the visualization and compare data before and after cleaning. You have to:

  1. Import the DBSCAN class from sklearn.cluster module.
  2. Use DBSCAN class and .fit() method of this class.
  3. Use .labels_ attribute of DBSCAN class.
  4. Specify clustering.labels_==-1 to detect noise.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 2. Chapter 7
toggle bottom row

bookPerform DBSCAN Clustering

Task

As we mentioned in the previous chapter, DBSCAN algorithm classifies points as core, border, and noise. As a result, we can use this algorithm to clean our data from outliers. Let's create DBSCAN model, clean data, and look at the results.

Your task is to train DBSCAN model on the circles dataset, detect noise points, and remove them. Look at the visualization and compare data before and after cleaning. You have to:

  1. Import the DBSCAN class from sklearn.cluster module.
  2. Use DBSCAN class and .fit() method of this class.
  3. Use .labels_ attribute of DBSCAN class.
  4. Specify clustering.labels_==-1 to detect noise.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Task

As we mentioned in the previous chapter, DBSCAN algorithm classifies points as core, border, and noise. As a result, we can use this algorithm to clean our data from outliers. Let's create DBSCAN model, clean data, and look at the results.

Your task is to train DBSCAN model on the circles dataset, detect noise points, and remove them. Look at the visualization and compare data before and after cleaning. You have to:

  1. Import the DBSCAN class from sklearn.cluster module.
  2. Use DBSCAN class and .fit() method of this class.
  3. Use .labels_ attribute of DBSCAN class.
  4. Specify clustering.labels_==-1 to detect noise.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 2. Chapter 7
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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