Data Science learning roadmap
If you are looking to get into machine learning, I would like to make your life easier by listing some of my favorite resources in this thread 🧵👇
#MachineLearning
1⃣Python is the most common language for data science (even though there are other great languages like R, C++)
This playlist by @JustinMitchel is a great way to start.
youtube.com/playlist?list=…
2⃣SQL
This @udacity free course is amazing.
udacity.com/course/sql-for…
3⃣Statistics
These two courses by @udacity provide an amazing introduction about inferential and descriptive statistics.
udacity.com/course/intro-t…

udacity.com/course/intro-t…
4⃣Data Analysis
- A great introduction into the data analysis process
udacity.com/course/intro-t…
- The amazing book "Python for Data Analysis: Data Wrangling with Pandas, NumPy, and IPython" by @wesmckinn is the best resource out there for learn data analysis fundamentals.
- A great and extensive data analysis course on @freeCodeCamp
5⃣Machine learning
- A great introduction into machine learning by @fishnets88

- The amazing book "Hands-on Machine Learning with Scikit-Learn, Keras & TensorFlow" is the best resource for machine learning.
- Amazing into into deep learning
- into into deep learning
youtube.com/playlist?list=…
6⃣Paid courses
- Deep learning specialization on @coursera by @DeepLearningAI_ and @AndrewYNg is one of the best introductions about deep learning.
If anyone has any additional resources, please feel free to share with the rest of us.

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More from @ammaryh92

21 Jun
Bias/Variance analysis is one of the most important concepts in machine learning as it allows you to measure and improve the performance of your model.
🧵In this thread, I will discuss the basic idea behind it, so let's dive right in.
#MachineLearning #ArtificialIntelligence
1⃣Bias (Underfitting)
What is bias?
In simple terms, bias is the difference between the model predictions and the actual values.
So if a model has a high bias, it means it has underfitted the training data. In other words, the model has a high training set error.
What causes a high bias?
Bias, or underfitting, mainly occurs when the model is too simple to understand the underlying structure of the training data, and so it misses the relevant relations between the input features and target outputs.
Read 16 tweets
19 Jun
Feature Scaling is one of the most important transformations you need to apply to your data before feeding it to your machine learning model.
🧵thread 👇
- Feature scaling refers to the concept of normalizing the range of input features so that they have similar scales.
- Most machine learning algorithms do not work well when the input numerical attributes have very different scales. Image
1⃣Min-Max Scaling (Normalization)
- In this method, values are rescaled so they end up ranging between 0 and 1 (the range can be changed in some cases).
- Normalization is very sensitive to the existence of outliers. Image
Read 6 tweets

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