[Python Project] Sentiment Analysis and Visualization of Stock News

TheCodex
21 Jul 202043:31
EducationalLearning
32 Likes 10 Comments

TLDRIn this project, the host demonstrates how to use sentiment analysis on financial news to understand stock performance. By scraping data from Finnviz using BeautifulSoup, parsing news articles, and applying sentiment analysis with NLTK's Vader, the host creates a visualization that reflects the average daily sentiment for specific stocks. The project showcases the power of combining web scraping, data analysis, and visualization to make informed decisions in the stock market.

Takeaways
  • 🌐 The project involves using sentiment analysis on financial news to understand stock performance.
  • 🔍 Data is scraped from Finnviz using BeautifulSoup in Python to gather article titles and timestamps.
  • 📊 The data is then analyzed and organized using pandas for efficient manipulation and computation.
  • 📈 NLTK's Vader sentiment analysis tool is applied to the titles to determine sentiment scores.
  • 📊 Visualization of sentiment analysis results over time is done using matplotlib to plot trends for different stocks.
  • 🛠 BeautifulSoup is used for parsing HTML content and extracting relevant information from web pages.
  • 📝 The script involves creating a Python file and importing necessary modules for web scraping and data analysis.
  • 🔄 The process includes iterating over stock tickers to accumulate headlines and perform sentiment analysis.
  • 📊 The final visualization is a bar chart that represents the average sentiment score for each stock on a daily basis.
  • 🎯 The project aims to provide insights into whether daily news is positive or negative for specific stocks.
  • 🔧 The script can be run daily to monitor stock sentiment based on financial news articles.
Q & A

  • What is the main objective of the project discussed in the video?

    -The main objective of the project is to use sentiment analysis on financial news articles to understand the sentiment around specific stocks and make decisions based on that sentiment analysis.

  • Which technologies are used in this project?

    -The project utilizes several technologies including Python, Beautiful Soup for web scraping, pandas for data analysis, NLTK module for sentiment analysis, and Matplotlib for data visualization.

  • How does the project plan to gather financial news articles?

    -The project plans to gather financial news articles by scraping the Finnviz website using Beautiful Soup in Python.

  • What is the role of pandas in this project?

    -Pandas is used in the project for data manipulation and analysis. It helps in creating data frames and applying functions like sentiment analysis on the dataset.

  • How is sentiment analysis applied to the news articles?

    -Sentiment analysis is applied to the news articles using the NLTK module, specifically the Vader sentiment intensity analyzer, which provides a compound score indicating the sentiment of the article titles.

  • What is the significance of the compound score in sentiment analysis?

    -The compound score is a normalized value between -1 and 1 that describes the overall sentiment of the text. It helps in understanding whether the sentiment is strongly negative, neutral, or very positive.

  • How does the project visualize the sentiment analysis results?

    -The project visualizes the sentiment analysis results using Matplotlib to create bar charts that show the average sentiment scores for different stocks over a period of time.

  • What is the expected outcome of the sentiment analysis on stock performance?

    -The expected outcome is to have a better understanding of how positive or negative news is affecting stock performance daily, which could potentially be used to make more informed trading decisions.

  • How does the project handle different date formats in the news articles?

    -The project converts the date strings from the news articles into a recognizable datetime format using pandas' `to_datetime` function, ensuring that the dates are correctly ordered for visualization.

  • What is the structure of the final data frame created in the project?

    -The final data frame contains columns for the ticker symbol, date, time, article title, and the compound sentiment score. It is structured in a way that allows for easy visualization and analysis of the sentiment trends over time.

  • How can this project be automated for daily use?

    -The project can be automated by scripting the entire process to run daily, scraping the latest financial news articles, performing sentiment analysis, and updating the visualizations accordingly.

Outlines
00:00
🚀 Introduction to Sentiment Analysis Project

The video introduces a project utilizing sentiment analysis to interpret financial news and make stock decisions. The host, Avi, explains the process of gathering articles about stocks using Python, Beautiful Soup, pandas, NLTK, and matplotlib. The goal is to analyze the sentiment of daily news articles related to specific stocks and visualize the data to understand the correlation between news sentiment and stock performance.

05:02
🌐 Web Scraping with BeautifulSoup

Avi demonstrates how to use BeautifulSoup to parse financial news headlines from finviz.com based on stock tickers. The process involves creating URLs with stock tickers, requesting the HTML data, and parsing it to extract relevant titles and timestamps. The video emphasizes the importance of user agents for accessing the data and provides a brief overview of the HTML structure of the news articles.

10:03
📊 Parsing Data and Preparing for Sentiment Analysis

This segment focuses on parsing the previously scraped data to prepare it for sentiment analysis. Avi explains how to iterate over table rows, extract titles and timestamps, and store them in a structured format. The video details the BeautifulSoup syntax used to navigate and extract information from the HTML content, emphasizing the structure of the news table and the use of dictionaries to organize data.

15:05
🔍 Sentiment Analysis with NLTK's Vader

Avi introduces the use of NLTK's Vader for sentiment analysis. The video explains the process of installing and importing the necessary modules, and how to apply sentiment intensity analyzer on the titles of the news articles. The host provides an example of how Vader scores sentiment, explaining the meaning of negative, neutral, and positive scores, and how the compound score indicates the overall sentiment of the text.

20:05
📈 Visualizing Sentiment Analysis Results

The final part of the video focuses on visualizing the sentiment analysis results. Avi demonstrates how to convert dates to datetime format for proper plotting, average the sentiment scores by date for each stock, and prepare the data for plotting. The video concludes with a walkthrough of plotting the average sentiment scores over time using matplotlib, resulting in a bar chart that visually represents the sentiment trend for each stock.

Mindmap
Keywords
💡Sentiment Analysis
Sentiment analysis is a method used to determine the emotional tone behind a series of words, used to gain an understanding of the attitudes, opinions, and emotions expressed within a piece of text. In the context of the video, sentiment analysis is applied to financial news headlines to determine whether they are positive, negative, or neutral, with the aim of understanding how these sentiments might influence stock market decisions.
💡Financial News
Financial news refers to the reporting and analysis of various events and information related to financial markets, companies, economies, and other financial aspects. In the video, the focus is on using financial news articles to extract information about the performance and public perception of certain stocks, which can be valuable for investment decisions.
💡Stock Tickers
Stock tickers are unique codes assigned to each security that is traded on a stock exchange. They are used to identify and track the stock's performance. In the video, stock tickers are used as a basis for gathering financial news articles and conducting sentiment analysis to predict stock performance.
💡Python
Python is a high-level, interpreted programming language known for its readability and ease of use. In the video, Python is used as the primary programming language to scrape financial news articles, perform sentiment analysis, and visualize the data.
💡BeautifulSoup
BeautifulSoup is a Python library used for web scraping and parsing HTML and XML documents. It creates a parse tree from page source code, which can be used to extract data in a hierarchical and readable manner. In the video, BeautifulSoup is used to extract article titles and timestamps from the financial news website.
💡Pandas
Pandas is an open-source Python data analysis and manipulation library that provides data structures and functions needed for handling structured data. It is widely used for tasks such as data cleaning, transformation, and analysis. In the video, pandas is used to manage and analyze the scraped data from financial news articles.
💡NLTK
The Natural Language Toolkit (NLTK) is a Python library for human language data and text processing. It provides tools for tasks such as tokenization, stemming, and sentiment analysis. In the video, NLTK's Vader sentiment analyzer is used to determine the sentiment of the news article titles.
💡Matplotlib
Matplotlib is a Python plotting library used for creating static, animated, and interactive visualizations in Python. It provides an object-oriented API for embedding plots into applications using general-purpose GUI toolkits like Tkinter, wxPython, Qt, or GTK. In the video, Matplotlib is used to visualize the sentiment analysis results over time for different stocks.
💡Data Visualization
Data visualization is the process of representing data and information graphically, making it easier to understand and interpret complex data. In the video, data visualization is achieved by plotting the sentiment analysis results for each stock ticker over a period of time, allowing for the identification of trends and patterns.
💡Web Scraping
Web scraping is the process of extracting data from websites. It involves downloading the content of a webpage and then extracting the relevant information from it. In the video, web scraping is performed to gather financial news articles from Finnviz.com using Python's BeautifulSoup library.
Highlights

The project aims to use sentiment analysis on financial news to understand stock performance.

Python is utilized to parse finviz.com for gathering article titles about specific stocks.

Beautiful Soup is used for web scraping to collect data from finviz.com.

Pandas is employed for data analysis and manipulation.

The NLTK module is used for sentiment analysis.

Matplotlib is used for data visualization.

The project involves creating a Python script to automate the process of gathering and analyzing financial news.

The script allows for the specification of stock tickers for visualization.

The project demonstrates the potential of using web scraping and data analysis for financial decision-making.

The process includes converting string dates to a recognizable datetime format for proper visualization.

VADER sentiment analysis is applied to titles to determine the sentiment polarity scores.

A pandas dataframe is created to host and organize the data effectively.

The project showcases the application of natural language processing in finance.

Data is visualized using bar charts to represent the average sentiment scores over time.

The project provides a practical example of integrating multiple technologies for a comprehensive analysis.

The script can be run daily to monitor stock performance based on financial news sentiment.

Transcripts

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