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A Cheatsheet to Find the Best-Fit Python Library

A Cheatsheet to Find the Best-Fit Python Library

Oct 05, 2020

Over 137,000 libraries exist in Python’s repository. So, how do you choose the right one for your machine learning project? A cheat sheet on proven uses can help.

Nothing beats Python in finding solutions to complex mathematical and computational problems. It is a versatile language that can be easily used across domains and is easier to debug too.

45% of tech organizations use Python for their machine learning and AI projects. – Builtwith.com

Python libraries are a work in progress and their use cases and toolkits are continuously advancing. Therefore, AI engineers need to keep a constant tab on the latest developments, more so if they intend to use Python for their machine learning projects.

Python can be used by beginners and experienced AI Engineers, which makes it a popular choice across levels.

Before we begin with the cheat sheet, please note that Python libraries can be multi-purpose and can be placed in multiple categories. Also, the use of libraries is not constrained to the highlighted tasks.

This cheat sheet aims to help you dig out the best fit.

Top Python Libraries for Deep Learning

We’ve weighed the pros and cons and arrived at these four top picks.

TensorFlow

A plug-and-play library with an extensive resource of commonly-used machine learning models and algorithms, TensorFlow comes with facial recognition capabilities. It is one of the biggest open-source Python libraries and a must-have for beginners.

Level: Good for beginners

Keras

It runs on top of libraries like CNTK, Theano, and TensorFlow, and offers specific support to deep learning applications. Easier prototyping, modularity, and a user-friendly interface make it an excellent choice for beginners.

Level: Excellent choice for beginners

Caffe

Convolutional Architecture for Fast Feature Embedding (Caffe) reiterates versions of an algorithm to get the best solution in time. Mostly used for image classification and segmentation, it is popular in academic research and industrial applications.

Level: Steep learning curve for beginners

PyTorch

With an option to create an n-dimensional array, it gives more control over a dataset. PyTorch functions well with statistical operations and is popular among researchers.

Level: Good for beginners

Top Python Libraries for Computer Vision

If you want to preprocess images and videos for machine learning, check out these three libraries.

OpenCV

One of the oldest libraries for computer vision applications, OpenCV supports PyTorch, TensorFlow, and Caffe. Its features include:

  • Object identification

  • Facial recognition

  • Object extraction

  • Action classification

  • Tracking

  • Reverse image search

Its image modification features can remove red eye, detect scenes, do AR overlays, and correct eye movement.

Level: Steep learning curve for beginners

MATLAB

Generally used for research purposes, this library is a great choice for fast prototyping. One of the main advantages of MATLAB is that it can handle errors before execution.

Level: Steep learning curve for beginners

CUDA

It uses the power of GPU to deliver impressive video, image, and signal functions.

TensorFlow and Keras can also be used for computer vision.

Top Python Libraries for Visualization

Python is an unmatched language for data manipulation and visualization in deep learning. Visualization helps machine learning engineers present their results in an understandable way.

Use these libraries to get the best outputs.

Matplotlib

This visualizer can create plots like histograms, line charts, scatter plots, and bar charts to find patterns in data. Its figures are interactive and the designer has full control over its properties. The final output can be extended to different formats.

Level: Knowledge of MATLAB helps

Seaborn

Based on Matplotlib, Seaborn is an excellent choice to create a high-level interface. If you are looking to create pretty charts, get this one.

Bokeh

A library for modern web browsers, Bokeh can be the right choice if you are looking for high- performance, interactive visualizations in large streaming datasets.

Top Libraries for Data Manipulation

These three libraries are excellent for data preprocessing and wrangling.

Pandas

Pandas is an excellent choice for statistical functions and data analysis. It makes preprocessing and data wrangling easy with its easy-to-use structures. It can perform complex functions. Its tools include:

  • Reading and writing data in memory data structures

  • Data indexing

  • Data manipulation

  • Reshaping data sets

  • Merging and joining data set

  • Filtering data

  • Time series functionality

Level: Previous knowledge of NumPy helps

NumPy

A must-have library for efficiently handling data and numbers, NumPy offers a transformative function for your data. It changes the inbuilt list data structure of Python and creates an n-dimensional array. It can also make your data adaptable. Mostly used for scientific and research applications, NumPy is also used to create generic data.

It is a great library to handle heterogeneous data and gives greater freedom with data. NumPy finds its best use in solving random numbers, linear algebra, and transformations.

Level: Suitable for beginners

Scikit-Learn

If data analysis is what you are looking for, then Scikit-Learn is the best library. It can help you with data classification and structuring. Its uses extend to clustering, regression, model selection dimensionality reduction, and data preprocessing, and it has gradient boosting, random forests, and support vector machines algorithms.

Scikit-Learn is the most popular machine learning library and 40% of projects on GitHub use Scikit-Learn.

Level: Excellent choice for beginners

Top Python Libraries for Web Scraping

These are our top picks for web scraping.

Scrapy

It systematically crawls the web and scrapes data for you, and can be used for mining, monitoring, automating, and testing data.

Beautiful Soup

It can extract information from HTML and XML files. Its simplicity and ease of use make it ideal for beginners. It is an excellent option for scraping unstructured information for small projects.

Top Python Libraries for Natural Language Processing (NLP)

NLTK

With its roots in educational purposes, NLTK has produced major breakthroughs. It is used for:

  • Classification

  • Stemming

  • Tagging

  • Parsing

  • Semantic reasoning

  • Tokenization

Level: Steep learning curve

The applications of Python are extensive, and this list must not be taken as the final benchmark. Having a working knowledge of these libraries can help you efficiently solve problems and improve your understanding of machine learning.

So, which is your favorite library? Do you want to add your favorite library here? Write to us.

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