Category: Python

Python tutorials

Beginner, NLP, Python, Text, Unstructured Data

Performing Sentiment Analysis Using Twitter Data!

Photo by Daddy Mohlala on Unsplash Data is water, purifying to make it edible is a role of Data Analyst – Kashish Rastogi We are going to clean the twitter text data and visualize data in this blog. Table Of Contents: Problem Statement Data Description Cleaning text with NLP Finding if the text has: with spacy Cleaning text with preprocessor library Analysis of the sentiment of data Data visualizing   I am taking the twitter data which is available here on […]

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Advanced, NLP, Project, Python, Structured Data, Text

Training BERT Text Classifier on Tensor Processing Unit (TPU)

Training hugging face most famous model on TPU for social media Tunisian Arabizi sentiment analysis.   Introduction The Arabic speakers usually express themself in local dialect on social media, so Tunisians use Tunisian Arabizi which consists of Arabic written in form of Latin alphabets. The sentiment analysis relies on cultural knowledge and word sense with contextual information. We will be using both Arabizi dialect and sentimental analysis to solve the problem in this project. The competition is hosted on Zindi which […]

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Python

Using sleep() to Code a Python Uptime Bot

Have you ever needed to make your Python program wait for something? You might use a Python sleep() call to simulate a delay in your program. Perhaps you need to wait for a file to upload or download, or for a graphic to load or be drawn to the screen. You might even need to pause between calls to a web API, or between queries to a database. Adding Python sleep() calls to your program can help in each of […]

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Python

Python’s ChainMap: Manage Multiple Contexts Effectively

Sometimes when you’re working with several different dictionaries, you need to group and manage them as a single one. In other situations, you can have multiple dictionaries representing different scopes or contexts and need to handle them as a single dictionary that allows you to access the underlying data following a given order or priority. In those cases, you can take advantage of Python’s ChainMap from the collections module. ChainMap groups multiple dictionaries and mappings in a single, updatable view […]

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Advanced, Libraries, NLP, Python, Text

Why must text data be pre-processed ?

This article was published as a part of the Data Science Blogathon Introduction Language is a structured medium we humans use to communicate with each other. Language can be in the form of speech or text. “Blah blah”, “Meh”, “zzzz…” Yup, we can understand these words. But the question is, “Can computers understand these?” Nop, machines can’t understandthese. In fact, machines can’t understand any text data at all, be it the word “blah” or the word “machine”. They only understand numbers. […]

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Beginner, Machine Learning, NLP, Python, Text

Bag-of-words vs TFIDF vectorization –A Hands-on Tutorial

This article was published as a part of the Data Science Blogathon Whenever we apply any algorithm to textual data, we need to convert the text to a numeric form. Hence, there arises a need for some pre-processing techniques that can convert our text to numbers. Both bag-of-words (BOW) and TFIDF are pre-processing techniques that can generate a numeric form from an input text. Bag-of-Words: The bag-of-words model converts text into fixed-length vectors by counting how many times each word appears. […]

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Advanced, Classification, NLP, Project, Python, Structured Data, Supervised

Spam Detection – An application of Deep Learning

This article was published as a part of the Data Science Blogathon What each big tech company wants is the Security and Safety of its customers. By detecting spam alerts in emails and messages, they want to secure their network and enhance the trust of their customers. The official messaging app of Apple and the official chatting app of Google i.e Gmail is unbeatable examples of such applications where the process of spam detection and filtering works well to protect users […]

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Python

Saving memory with Pandas 1.3’s new string dtype

When you’re loading many strings into Pandas, you’re going to use a lot of memory. If you have only a limited number of strings, you can save memory with categoricals, but that’s only helpful in a limited number of situations. With Pandas 1.3, there’s a new option that can save memory on large number of strings as well, simply by changing to a new column type. Let’s see how. Pandas’ different string dtypes Every pandas.Series, and every column in a […]

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Python

Python and REST APIs: Interacting With Web Services

In this section, you’ll look at three popular frameworks for building REST APIs in Python. Each framework has pros and cons, so you’ll have to evaluate which works best for your needs. To this end, in the next sections, you’ll look at a REST API in each framework. All the examples will be for a similar API that manages a collection of countries. The fields name, capital, and area store data about a specific country somewhere in the world. Most […]

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Python

The Pandas DataFrame: Working With Data Efficiently

The Pandas DataFrame is a structure that contains two-dimensional data and its corresponding labels. DataFrames are widely used in data science, machine learning, scientific computing, and many other data-intensive fields. DataFrames are similar to SQL tables or the spreadsheets that you work with in Excel or Calc. In many cases, DataFrames are faster, easier to use, and more powerful than tables or spreadsheets because they’re an integral part of the Python and NumPy ecosystems. In this course, you’ll learn: What […]

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