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Alexey Grigorev
@Al_Grigor
Founder @DataTalksClub | Teaching engineers to build production AI systems | AI agents, LLMs, ML, data engineering | 100,000+ learners
Build and ship together:
Joined January 2020
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    AI Engineering Buildcamp is project-driven. You learn AI engineering by building. 15 projects you can build during the course 👇🏼 (You get lifetime access to the course if you sign up)
    Flowchart illustrating the data processing pipeline for AI development, highlighting ingestion, search, user interaction, and evaluation processes.
    A flowchart outlines steps in AI project development, covering idea generation, RAG foundation, testing, monitoring, evaluation, and production.
    A flowchart outlines a six-week AI engineering course focused on project-based learning, featuring tasks like document search and query evaluation.
    Nine panels display various AI tools like a YouTube summarizer, coding agent, and PDF processor, showcasing project-driven features for learning.
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    Learning path to mastering Data Science: 🔸 Python 🔸 Git 🔸 SQL 🔸 NumPy 🔸 Pandas 🔸 Scikit-Learn 🔸 Flask 🔸 Docker 🔸 AWS 🔸 TensorFlow 🔸 Linear Algebra 🔸 Machine Learning basics What else?
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    When learning machine learning, focus on these algorithms first: 🔸 Linear regression 🔸 Logistic regression 🔸 Decision trees 🔸 Random forest 🔸 Gradient boosting 🔸 Neural networks (also CNN) In this order Knowing them will cover 95% of applied ML cases
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    Tools that cover 90% of data science use cases 🔸 Git 🔸 Bash 🔸 SQL 🔸 NumPy 🔸 Pandas 🔸 Scikit-Learn 🔸 Flask 🔸 Docker Focus on them first
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    Roadmap for learning ML Engineering: 🔸 Linear regression 🔸 Logistic regression 🔸 Evaluation metrics 🔸 Docker, web services, cloud 🔸 Model deployment 🔸 Tree-based models 🔸 Neural networks 🔸 Kubernetes Learn it in this order and you'll be ready for an ML engineering job
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    200+ Data Science interview questions 🔸 Supervised machine learning (linear models, trees, neural nets) 🔸 Feature selection, parameter tuning 🔸 Unsupervised learning (clustering, dim reduction) 🔸 Recommenders and search 🔸 SQL 🔸 Coding (Python), algorithms With answers 👇
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    My onsite interview for ML engineering with a FAANG company: 🔸 Behavioral 🔸 Coding round 1 (two problems) 🔸 Coding round 2 (two problems) 🔸 System design 🔸 ML case study Here are the questions I got👇
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    Registration to Machine Learning Zoomcamp 2022 is open! Learn ML Engineering in 4 months in a free online course: - Linear and logistic regression - Tree-based models - Neural networks - Deployment with AWS, Serverless, Kubernetes 👉 github.com/alexeygrigorev…
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    I just started a Data Engineering community here on Twitter Since the communities on Twitter is a new thing, it's invite-only currently Reply if you need an invite
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    The most useful online courses I took when learning machine learning 🔸 Machine Learning (coursera) 🔸 Statistical Learning (edx) 🔸 Analytics Edge (edx) 🔸 Learning from Data (caltech) I took a lot of courses. But these four were the best
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    Most candidates cannot solve this interview problem: 🔸 Input: "aaaabbbcca" 🔸 Output: [("a", 4), ("b", 3), ("c", 2), ("a", 1)] Write a function that converts the input to the output I ask it in the screening interview and give it 25 minutes How would you solve it?
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    Learning paths to mastering: 🔸 Data science 🔸 Data engineering 🔸 Machine learning engineering 🔸 MLOps All in one mega-thread! 👇 (Make sure to check the replies!)
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    Want to get into Machine Learning? 🔸 If you want to learn — learn mathematics 🔸 if you want to earn — learn Scikit-Learn
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    Learning path to mastering MLOps: 🔸 Linux 🔸 Python 🔸 Docker 🔸 AWS 🔸 Terraform 🔸 Kubernetes 🔸 Prometheus 🔸 Grafana 🔸 Kubeflow What else?