Basic Services in AWS IAM (Identity and Access Management) 1. users & groups management 2. Access to AWS AWS Management Console (Through Browser, username + password + MFA) AWS Com
Notebook archive
Writing notes
Loose pages, technical margins, and small notes gathered into a readable stack.
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Algorithms for Recommender Systems Collaborative Filtering Algorithm (协同过滤) --- Building Recommender System with per-item features For example, each movie has 2 features: $x 1$ is
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Algorithms for unsupervised learning Clustering Practical application in clustering: 1. Grouping similar news 2. Market segmentation 3. DNA analysis K-means Algorithm 'The K-means
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Words to vector, catch word meanings by word embeddings. Representing words One-Hot Encoding Choose a vocabulary, each word in your sample is represented by a one-hot vector (shape
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Definition, implementation and pros and cons of decision tree models. What is a decision tree? A decision tree is a simple model for 'supervised' classification/regression. Each in
