Data Science & Machine Learning
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7 Websites to Learn Data Science for FREE๐Ÿง‘โ€๐Ÿ’ป

โœ… w3school
โœ… datasimplifier
โœ… hackerrank
โœ… kaggle
โœ… geeksforgeeks
โœ… leetcode
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Use of Machine Learning in Data Analytics
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For those of you who are new to Data Science and Machine learning algorithms, let me try to give you a brief overview. ML Algorithms can be categorized into three types: supervised learning, unsupervised learning, and reinforcement learning.

1. Supervised Learning:
- Definition: Algorithms learn from labeled training data, making predictions or decisions based on input-output pairs.
- Examples: Linear regression, decision trees, support vector machines (SVM), and neural networks.
- Applications: Email spam detection, image recognition, and medical diagnosis.

2. Unsupervised Learning:
- Definition: Algorithms analyze and group unlabeled data, identifying patterns and structures without prior knowledge of the outcomes.
- Examples: K-means clustering, hierarchical clustering, and principal component analysis (PCA).
- Applications: Customer segmentation, market basket analysis, and anomaly detection.

3. Reinforcement Learning:
- Definition: Algorithms learn by interacting with an environment, receiving rewards or penalties based on their actions, and optimizing for long-term goals.
- Examples: Q-learning, deep Q-networks (DQN), and policy gradient methods.
- Applications: Robotics, game playing (like AlphaGo), and self-driving cars.

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

Credits: https://t.iss.one/datasciencefun

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Machine Learning Algorithms Cheatsheet โœ…
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Basics of Machine Learning ๐Ÿ‘‡๐Ÿ‘‡

Free Resources to learn Machine Learning: https://t.iss.one/free4unow_backup/587

Machine learning is a branch of artificial intelligence where computers learn from data to make decisions without explicit programming. There are three main types:

1. Supervised Learning: The algorithm is trained on a labeled dataset, learning to map input to output. For example, it can predict housing prices based on features like size and location.

2. Unsupervised Learning: The algorithm explores data patterns without explicit labels. Clustering is a common task, grouping similar data points. An example is customer segmentation for targeted marketing.

3. Reinforcement Learning: The algorithm learns by interacting with an environment. It receives feedback in the form of rewards or penalties, improving its actions over time. Gaming AI and robotic control are applications.

Key concepts include:

- Features and Labels: Features are input variables, and labels are the desired output. The model learns to map features to labels during training.

- Training and Testing: The model is trained on a subset of data and then tested on unseen data to evaluate its performance.

- Overfitting and Underfitting: Overfitting occurs when a model is too complex and fits the training data too closely, performing poorly on new data. Underfitting happens when the model is too simple and fails to capture the underlying patterns.

- Algorithms: Different algorithms suit various tasks. Common ones include linear regression for predicting numerical values, and decision trees for classification tasks.

In summary, machine learning involves training models on data to make predictions or decisions. Supervised learning uses labeled data, unsupervised learning finds patterns in unlabeled data, and reinforcement learning learns through interaction with an environment. Key considerations include features, labels, overfitting, underfitting, and choosing the right algorithm for the task.

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Which python library is not used specifically for data visualization?
Anonymous Quiz
12%
Matplotlib
14%
Seaborn
58%
Numpy
16%
Plotly
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๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜๐—ถ๐˜€๐˜ ๐˜ƒ๐˜€. ๐——๐—ฎ๐˜๐—ฎ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ ๐˜ƒ๐˜€. ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜€๐˜ ๐˜ƒ๐˜€. ๐— ๐—Ÿ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ

๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜๐—ถ๐˜€๐˜

Think of them as data detectives.
โ†’ ๐…๐จ๐œ๐ฎ๐ฌ: Identifying patterns and building predictive models.
โ†’ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ: Machine learning, statistics, Python/R.
โ†’ ๐“๐จ๐จ๐ฅ๐ฌ: Jupyter Notebooks, TensorFlow, PyTorch.
โ†’ ๐†๐จ๐š๐ฅ: Extract actionable insights from raw data.
๐„๐ฑ๐š๐ฆ๐ฉ๐ฅ๐ž: Creating a recommendation system like Netflix.

๐——๐—ฎ๐˜๐—ฎ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ

The architects of data infrastructure.
โ†’ ๐…๐จ๐œ๐ฎ๐ฌ: Developing data pipelines, storage systems, and infrastructure. โ†’ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ: SQL, Big Data technologies (Hadoop, Spark), cloud platforms.
โ†’ ๐“๐จ๐จ๐ฅ๐ฌ: Airflow, Kafka, Snowflake.
โ†’ ๐†๐จ๐š๐ฅ: Ensure seamless data flow across the organization.
๐„๐ฑ๐š๐ฆ๐ฉ๐ฅ๐ž: Designing a pipeline to handle millions of transactions in real-time.

๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜€๐˜

Data storytellers.
โ†’ ๐…๐จ๐œ๐ฎ๐ฌ: Creating visualizations, dashboards, and reports.
โ†’ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ: Excel, Tableau, SQL.
โ†’ ๐“๐จ๐จ๐ฅ๐ฌ: Power BI, Looker, Google Sheets.
โ†’ ๐†๐จ๐š๐ฅ: Help businesses make data-driven decisions.
๐„๐ฑ๐š๐ฆ๐ฉ๐ฅ๐ž: Analyzing campaign data to optimize marketing strategies.

๐— ๐—Ÿ ๐—˜๐—ป๐—ด๐—ถ๐—ป๐—ฒ๐—ฒ๐—ฟ

The connectors between data science and software engineering.
โ†’ ๐…๐จ๐œ๐ฎ๐ฌ: Deploying machine learning models into production.
โ†’ ๐’๐ค๐ข๐ฅ๐ฅ๐ฌ: Python, APIs, cloud services (AWS, Azure).
โ†’ ๐“๐จ๐จ๐ฅ๐ฌ: Kubernetes, Docker, FastAPI.
โ†’ ๐†๐จ๐š๐ฅ: Make models scalable and ready for real-world applications. ๐„๐ฑ๐š๐ฆ๐ฉ๐ฅ๐ž: Deploying a fraud detection model for a bank.

๐—ช๐—ต๐—ฎ๐˜ ๐—ฃ๐—ฎ๐˜๐—ต ๐—ฆ๐—ต๐—ผ๐˜‚๐—น๐—ฑ ๐—ฌ๐—ผ๐˜‚ ๐—–๐—ต๐—ผ๐—ผ๐˜€๐—ฒ?

โ˜‘ Love solving complex problems?
โ†’ Data Scientist
โ˜‘ Enjoy working with systems and Big Data?
โ†’ Data Engineer
โ˜‘ Passionate about visual storytelling?
โ†’ Data Analyst
โ˜‘ Excited to scale AI systems?
โ†’ ML Engineer

Each role is crucial and in demandโ€”choose based on your strengths and career aspirations.

Whatโ€™s your ideal role?

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

Credits: https://t.iss.one/datasciencefun

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How to get started with data science

Many people who get interested in learning data science don't really know what it's all about.

They start coding just for the sake of it and on first challenge or problem they can't solve, they quit.

Just like other disciplines in tech, data science is challenging and requires a level of critical thinking and problem solving attitude.

If you're among people who want to get started with data science but don't know how - I have something amazing for you!

I created Best Data Science & Machine Learning Resources that will help you organize your career in data.

Happy learning ๐Ÿ˜„๐Ÿ˜„
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Data Science is very vast field.

I saw one linkedin profile today with below skills ๐Ÿ‘‡

Technical Skills:
Data Manipulation: Numpy, Pandas, BeautifulSoup, PySpark
Data Visualization: EDA- Matplotlib, Seaborn, Plotly, Tableau, PowerBI
Machine Learning: Scikit-Learn, TimeSeries Analysis
MLOPs: Gensinms, Github Actions, Gitlab CI/CD, mlflows, WandB, comet
Deep Learning: PyTorch, TensorFlow, Keras
Natural Language Processing: NLTK, NER, Spacy, word2vec, Kmeans, KNN, DBscan
Computer Vision: openCV, Yolo-V5, unet, cnn, resnet
Version Control: Git, Github, Gitlab
Database: SQL, NOSQL, Databricks
Web Frameworks: Streamlit, Flask, FastAPI, Streamlit
Generative AI - HuggingFace, LLM, Langchain, GPT-3.5, and GPT-4
Project Management and collaboration tool- JIRA, Confluence
Deployment- AWS, GCP, Docker, Google Vertex AI, Data Robot AI, Big ML, Microsoft Azure

How many of them do you have?
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Roadmap to become NLP Expert in 2025 โœ…
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A-Z of essential data science concepts

A: Algorithm - A set of rules or instructions for solving a problem or completing a task.
B: Big Data - Large and complex datasets that traditional data processing applications are unable to handle efficiently.
C: Classification - A type of machine learning task that involves assigning labels to instances based on their characteristics.
D: Data Mining - The process of discovering patterns and extracting useful information from large datasets.
E: Ensemble Learning - A machine learning technique that combines multiple models to improve predictive performance.
F: Feature Engineering - The process of selecting, extracting, and transforming features from raw data to improve model performance.
G: Gradient Descent - An optimization algorithm used to minimize the error of a model by adjusting its parameters iteratively.
H: Hypothesis Testing - A statistical method used to make inferences about a population based on sample data.
I: Imputation - The process of replacing missing values in a dataset with estimated values.
J: Joint Probability - The probability of the intersection of two or more events occurring simultaneously.
K: K-Means Clustering - A popular unsupervised machine learning algorithm used for clustering data points into groups.
L: Logistic Regression - A statistical model used for binary classification tasks.
M: Machine Learning - A subset of artificial intelligence that enables systems to learn from data and improve performance over time.
N: Neural Network - A computer system inspired by the structure of the human brain, used for various machine learning tasks.
O: Outlier Detection - The process of identifying observations in a dataset that significantly deviate from the rest of the data points.
P: Precision and Recall - Evaluation metrics used to assess the performance of classification models.
Q: Quantitative Analysis - The process of using mathematical and statistical methods to analyze and interpret data.
R: Regression Analysis - A statistical technique used to model the relationship between a dependent variable and one or more independent variables.
S: Support Vector Machine - A supervised machine learning algorithm used for classification and regression tasks.
T: Time Series Analysis - The study of data collected over time to detect patterns, trends, and seasonal variations.
U: Unsupervised Learning - Machine learning techniques used to identify patterns and relationships in data without labeled outcomes.
V: Validation - The process of assessing the performance and generalization of a machine learning model using independent datasets.
W: Weka - A popular open-source software tool used for data mining and machine learning tasks.
X: XGBoost - An optimized implementation of gradient boosting that is widely used for classification and regression tasks.
Y: Yarn - A resource manager used in Apache Hadoop for managing resources across distributed clusters.
Z: Zero-Inflated Model - A statistical model used to analyze data with excess zeros, commonly found in count data.

Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624

Credits: https://t.iss.one/datasciencefun

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Hope this helps you ๐Ÿ˜Š
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