Blog

K-Means clustering uses Euclidean distance to assign data points to the nearest centroid, updates the centroid as the average of assigned points, and converges when the centroid remains unchanged.

The following algorithm is described as a PCA. Is it true or false?1.Standardize the Data: Standardize the dataset by subtracting the mean and dividing by the standard deviation for each feature, ensuring all features have the same scale.2.Compute the Covariance Matrix: The covariance matrix represents how much each of the features varies with every other feature. It helps identify correlations between features.3.Calculate the Eigenvalues and Eigenvectors: Eigenvalues measure the variance captured by each principal component. Eigenvectors define the direction of these components in the feature space.4.Sort Eigenvalues and Eigenvectors: Sort the eigenvalues in descending order. The higher the eigenvalue, the more important the corresponding eigenvector is.Select the top k eigenvectors that capture the most variance (the top k principal components).5.Project Data onto New Axes: The final step is to transform the original dataset into the new space defined by the selected eigenvectors. This reduces the dimensionality of the data.

Unsupervised learning is a type of ML where algorithms analyze unlabeled data to identify hidden patterns or structures, without predefined labels or outcomes.

A 16 week old infant presents to the PCP office and the mother desires the infant to receive the rotavirus vaccine. The infant has not received any previous doses of the rotavirus vaccine. You respond with:

Which of the following should be included in EVERY primary care visit?

A 15 month old should be able to:

A mother received Abrysvo at 35+4 days pregnant in November. She delivers her infant at term in December. The infant needs to receive a dose of nirsevimab prior to hospital discharge.

The AAP states that developmental screenings should be performed at:

The Hepatitis A vaccine should be given at 12 months of age.  A second dose should be received 2 months after the first dose.

If an infant is born to a mother that is Hepatitis B Antigen positive: