Data Science & Machine Learning

19 Feb 2024 13:58

logistic regression notes.pdf

Data Science & Machine Learning

10 Feb 2024 05:25

Essential Data Science Concepts 👇

1. Data cleaning: The process of identifying and correcting errors or inconsistencies in data to improve its quality and accuracy.

2. Data exploration: The initial analysis of data to understand its structure, patterns, and relationships.

3. Descriptive statistics: Methods for summarizing and describing the main features of a dataset, such as mean, median, mode, variance, and standard deviation.

4. Inferential statistics: Techniques for making predictions or inferences about a population based on a sample of data.

5. Hypothesis testing: A method for determining whether a hypothesis about a population is true or false based on sample data.

6. Machine learning: A subset of artificial intelligence that focuses on developing algorithms and models that can learn from and make predictions or decisions based on data.

7. Supervised learning: A type of machine learning where the model is trained on labeled data to make predictions on new, unseen data.

8. Unsupervised learning: A type of machine learning where the model is trained on unlabeled data to find patterns or relationships within the data.

9. Feature engineering: The process of creating new features or transforming existing features in a dataset to improve the performance of machine learning models.

10. Model evaluation: The process of assessing the performance of a machine learning model using metrics such as accuracy, precision, recall, and F1 score.

Data Science & Machine Learning

08 Feb 2024 10:48

Python Packages for Data Science in 2024 👇👇
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Data Science & Machine Learning

06 Feb 2024 15:43

2. Decision Trees:
- Parameters:
- Max Depth: Limits the depth of the tree by restricting the number of questions it can ask.
- Min Samples Split: Specifies the minimum number of samples required to split a node.
- Min Samples Leaf: Sets the minimum number of samples a leaf node must have.
- Why: These parameters control the complexity of the decision tree. Adjusting them helps prevent overfitting (capturing noise in the data) and ensures a more generalizable model.

Data Science & Machine Learning

04 Feb 2024 08:19

Deep from Kaggle Group asked me to explain each parameters used in ml algorithms and why we use it in detail.

Like this post if you want next few posts on that topic

Data Science & Machine Learning

03 Feb 2024 11:16

Important Machine Learning Algorithms 👇👇

- Linear Regression
- Decision Trees
- Random Forest
- Support Vector Machines (SVM)
- k-Nearest Neighbors (kNN)
- Naive Bayes
- K-Means Clustering
- Hierarchical Clustering
- Principal Component Analysis (PCA)
- Neural Networks (Deep Learning)
- Gradient Boosting algorithms (e.g., XGBoost, LightGBM)

Like this post if you want me to explain each algorithm in detail

Share with credits: /channel/datasciencefun

ENJOY LEARNING 👍👍

Data Science & Machine Learning

20 Jan 2024 17:48

Data Science Interview Preparation 👇👇
https://www.linkedin.com/posts/sql-analysts_datascience-dataanalytics-data-activity-7154514626787848192-BYVD?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

13 Jan 2024 11:36

Statistics for Data Science 👇👇 https://www.linkedin.com/posts/sql-analysts_statistics-for-data-science-activity-7151884492155056130-Bwb1?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

08 Jan 2024 06:24

Additional Resources To Assist Research

https://www.reddit.com/r/MachineLearning/

• https://www.reddit.com/r/deeplearning/

• https://paperswithcode.com/

• https://www.datasimplifier.com/

• https://papers.nips.cc/

• https://icml.cc/

• https://iclr.cc/

• https://www.researchgate.net/

ENJOY LEARNING 👍👍

Data Science & Machine Learning

04 Jan 2024 19:37

Machine Learning for Decision Makers
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Data Science & Machine Learning

27 Dec 2023 07:55

Python Real-world Projects
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Data Science & Machine Learning

26 Dec 2023 06:47

Mastering Shortcuts for Data Scientists
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Data Science & Machine Learning

23 Dec 2023 12:01

What are predictive algorithms in the context of the stock market?

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Data Science & Machine Learning

21 Dec 2023 04:32

STRONG PERSONALITIES HAVE THEIR PRINCIPLES

I am telling you a must have trait if you want to build your personality.
You must live with your STRONG PRINCIPLES!

If you decided to not to smoke or drink, NEVER DO IT whatever the condition is.

THIS IS YOUR PRINCIPLE.

If you decided not to eat non-veg, then never do it.

YOU CAN HAVE YOUR OWN STRONG PRINCIPLES IN LIFE!

The thing that matter is to follow them no matter what the condition is!!!

Data Science & Machine Learning

20 Dec 2023 09:37

SQL Complete Study Material Giveaway
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Data Science & Machine Learning

10 Feb 2024 16:57

Python libraries for data science and Machine Learning 👇👇

1. NumPy: NumPy is a fundamental package for scientific computing in Python. It provides support for large multidimensional arrays and matrices, along with a collection of mathematical functions to operate on these arrays.

2. Pandas: Pandas is a powerful data manipulation and analysis library that provides data structures like DataFrames and Series, making it easy to work with structured data.

3. Matplotlib: Matplotlib is a plotting library that enables the creation of various types of visualizations, such as line plots, bar charts, histograms, scatter plots, etc., to explore and communicate data effectively.

4. Scikit-learn: Scikit-learn is a machine learning library that offers a wide range of algorithms for classification, regression, clustering, dimensionality reduction, and more. It also provides tools for model selection and evaluation.

5. TensorFlow: TensorFlow is an open-source machine learning framework developed by Google that is widely used for building deep learning models. It provides a comprehensive ecosystem of tools and libraries for developing and deploying machine learning applications.

6. Keras: Keras is a high-level neural networks API that runs on top of TensorFlow, Theano, or Microsoft Cognitive Toolkit. It simplifies the process of building and training deep learning models by providing a user-friendly interface.

7. SciPy: SciPy is a scientific computing library that builds on top of NumPy and provides additional functionality for optimization, integration, interpolation, linear algebra, signal processing, and more.

8. Seaborn: Seaborn is a data visualization library based on Matplotlib that provides a higher-level interface for creating attractive and informative statistical graphics.

Channel credits: /channel/datasciencefun

ENJOY LEARNING 👍👍

Data Science & Machine Learning

08 Feb 2024 19:51

Pandas is a popular Python library for data manipulation and analysis. Here are some essential concepts in Pandas that every data analyst should be familiar with:

1. Data Structures: Pandas provides two main data structures: Series and DataFrame. A Series is a one-dimensional array-like object, while a DataFrame is a two-dimensional tabular data structure similar to a spreadsheet.

2. Indexing and Selection: Pandas allows you to select and manipulate data using various indexing techniques, such as label-based indexing (loc), integer-based indexing (iloc), and boolean indexing.

3. Data Cleaning: Pandas provides functions for handling missing data, removing duplicates, and filling in missing values. Methods like dropna(), fillna(), and drop_duplicates() are commonly used for data cleaning.

4. Data Manipulation: Pandas offers powerful tools for data manipulation, such as merging, joining, concatenating, reshaping, and grouping data. Functions like merge(), concat(), pivot_table(), and groupby() are commonly used for data manipulation tasks.

5. Data Aggregation: Pandas allows you to aggregate data using functions like sum(), mean(), count(), min(), max(), and custom aggregation functions. These functions help summarize and analyze data at different levels.

6. Time Series Analysis: Pandas has built-in support for working with time series data, including date/time indexing, resampling, shifting, rolling window calculations, and time zone handling.

7. Data Visualization: Pandas integrates well with popular data visualization libraries like Matplotlib and Seaborn to create visualizations directly from DataFrames. You can plot data using functions like plot(), hist(), scatter(), and boxplot().

8. Handling Categorical Data: Pandas provides support for working with categorical data through the Categorical data type. This helps in efficient storage and analysis of categorical variables.

9. Reading and Writing Data: Pandas can read data from various file formats such as CSV, Excel, SQL databases, JSON, and HTML. It can also write data back to these formats after processing.

10. Performance Optimization: Pandas offers methods to optimize performance, such as vectorized operations (using NumPy arrays), using apply() function efficiently, and avoiding loops for faster data processing.

By mastering these essential concepts in Pandas, you can efficiently manipulate and analyze data, perform complex operations, and derive valuable insights from your datasets as a data analyst. Regular practice and hands-on experience with Pandas will further enhance your skills in data manipulation and analysis.

Data Science & Machine Learning

07 Feb 2024 18:06

Step by step guide to implement ML algorithms using python 👇
https://www.linkedin.com/posts/sql-analysts_machine-learning-learn-today-activity-7161010726122270721-LLJ0?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

05 Feb 2024 14:41

Amazing response guys!

Let's start with the first algorithm:

1. Linear Regression:
- Parameter:
- None (for basic linear regression): There are no specific hyperparameters for a simple linear regression model.
- Why: Linear regression is a straightforward algorithm where the model fits a line to the data, and there are minimal parameters to tweak. The primary focus is often on the quality of the data and assumptions related to linearity.

Data Science & Machine Learning

04 Feb 2024 06:15

Thanks for the amazing response in last post

Here is a simple explanation of each algorithm:

1. Linear Regression:
- Imagine drawing a straight line on a graph to show the relationship between two things, like how the height of a plant might relate to the amount of sunlight it gets.

2. Decision Trees:
- Think of a game where you have to answer yes or no questions to find an object. It's like a flowchart helping you decide what the object is based on your answers.

3. Random Forest:
- Picture a group of friends making decisions together. Random Forest is like combining the opinions of many friends to make a more reliable decision.

4. Support Vector Machines (SVM):
- Imagine drawing a line to separate different types of things, like putting all red balls on one side and blue balls on the other, with the line in between them.

5. k-Nearest Neighbors (kNN):
- Pretend you have a collection of toys, and you want to find out which toys are similar to a new one. kNN is like asking your friends which toys are closest in looks to the new one.

6. Naive Bayes:
- Think of a detective trying to solve a mystery. Naive Bayes is like the detective making guesses based on the probability of certain clues leading to the culprit.

7. K-Means Clustering:
- Imagine sorting your toys into different groups based on their similarities, like putting all the cars in one group and all the dolls in another.

8. Hierarchical Clustering:
- Picture organizing your toys into groups, and then those groups into bigger groups. It's like creating a family tree for your toys based on their similarities.

9. Principal Component Analysis (PCA):
- Suppose you have many different measurements for your toys, and PCA helps you find the most important ones to understand and compare them easily.

10. Neural Networks (Deep Learning):
- Think of a robot brain with lots of interconnected parts. Each part helps the robot understand different aspects of things, like recognizing shapes or colors.

11. Gradient Boosting algorithms:
- Imagine you are trying to reach the top of a hill, and each time you take a step, you learn from the mistakes of the previous step to get closer to the summit. XGBoost and LightGBM are like smart ways of learning from those steps.

Share with credits: /channel/datasciencefun

ENJOY LEARNING 👍👍

Data Science & Machine Learning

03 Feb 2024 06:44

Free Resources to learn Data Science 👇👇
https://www.linkedin.com/posts/sql-analysts_sql-notes-activity-7159410174644883456-3VNY?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

14 Jan 2024 07:36

All Data Analytics, SQL, Python, ML, Data Science & other useful Study materials complete free Notes😍🔥

https://www.linkedin.com/posts/sql-analysts_all-data-analytics-sql-python-ml-data-activity-7152184466231222272-gEFZ?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

11 Jan 2024 08:42

Data Science Interview Questions
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https://www.linkedin.com/posts/sql-analysts_data-science-interview-questions-activity-7151094128284479489-YvbU?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

07 Jan 2024 06:22

To start with Machine Learning:

1. Learn Python
2. Practice using Google Colab


Take these free courses:

/channel/datasciencefun/290

If you need a bit more time before diving deeper, finish the Kaggle tutorials.

At this point, you are ready to finish your first project: The Titanic Challenge on Kaggle.

If Math is not your strong suit, don't worry. I don't recommend you spend too much time learning Math before writing code. Instead, learn the concepts on-demand: Find what you need when needed.

From here, take the Machine Learning specialization in Coursera. It's more advanced, and it will stretch you out a bit.

The top universities worldwide have published their Machine Learning and Deep Learning classes online. Here are some of them:

/channel/datasciencefree/259

Many different books will help you. The attached image will give you an idea of my favorite ones.

Finally, keep these three ideas in mind:

1. Start by working on solved problems so you can find help whenever you get stuck.
2. ChatGPT will help you make progress. Use it to summarize complex concepts and generate questions you can answer to practice.
3. Find a community on LinkedIn or 𝕏 and share your work. Ask questions, and help others.

During this time, you'll deal with a lot. Sometimes, you will feel it's impossible to keep up with everything happening, and you'll be right.

Here is the good news:

Most people understand a tiny fraction of the world of Machine Learning. You don't need more to build a fantastic career in space.

Focus on finding your path, and Write. More. Code.

That's how you win.✌️✌️

Data Science & Machine Learning

28 Dec 2023 08:24

Apache Spark Free Resources
https://www.linkedin.com/posts/sql-analysts_comments-spark-java-activity-7146028247854616577-7OX_?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

26 Dec 2023 07:30

Machine Learning Interview Questions

Data Science & Machine Learning

24 Dec 2023 06:53

Every Data Scientist should know this
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https://www.linkedin.com/posts/sql-analysts_data-science-cheatsheet-activity-7144556047448391680-ir90?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

23 Dec 2023 06:56

Data Science in a Nutshell
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https://www.linkedin.com/posts/sql-analysts_dataanalytics-sql-sqlserver-activity-7144197434196353024-tg8E?utm_source=share&utm_medium=member_android

Data Science & Machine Learning

20 Dec 2023 17:41

Data Science & Machine Learning Project Discussions
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/channel/Kaggle_Group

Data Science & Machine Learning

24 Aug 2023 05:28

800 Data Science Questions with Answers