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Hello !!
Welcome to this edition of Business Analytics Review!
Today, we’re exploring a fundamental concept in machine learning and natural language processing: Cosine Similarity. This measure is widely used to compare the similarity between vectors, particularly in text analysis and recommendation systems.
What is Cosine Similarity?
Cosine similarity is a metric used to determine how similar two vectors are by calculating the cosine of the angle between them. It ranges from -1 (completely dissimilar) to 1 (identical), with 0 indicating orthogonality (no similarity). This measure is particularly useful in high-dimensional spaces, where Euclidean distance can be misleading.
How Does Cosine Similarity Work?
Imagine you have two documents represented as vectors in a high-dimensional space. Each dimension corresponds to a word in your vocabulary. The cosine similarity between these vectors will be high if both documents use similar words frequently, even if they don't share all the same words.
Here’s a simple formula to calculate cosine similarity
Applications of Cosine Similarity
Text Analysis: Cosine similarity is used in text classification, clustering, and information retrieval to compare document similarity.
Recommendation Systems: It helps suggest items based on user preferences by comparing user profiles.
Plagiarism Detection: Cosine similarity can identify similar passages in documents.
Further Exploration
What is Cosine Similarity? A Comprehensive Guide
This article provides a detailed overview of cosine similarity, including its applications in NLP and recommendation systems.
Read more here
Unveiling the Power of Cosine Similarity in Text Analysis
This piece focuses on the role of cosine similarity in text analysis, highlighting its advantages over other distance metrics.
Read more here
Understanding the Cosine Similarity Formula
A technical explanation of the cosine similarity formula, with examples and interpretations of its results.
Read more here
Latest News in AI and Data Science
AI in Computer Vision Market Research Report 2025-2030
The global AI in computer vision market is projected to reach USD 63.48 billion by 2030, growing at a CAGR of 22.1% from 2025. This growth is driven by advancements in machine learning, increased computational power, and the expansion of high-quality image data. Key players include NVIDIA, Microsoft, and Intel.
Read more here
HK's AI Bid Gets Fresh Impetus from HK$200m Donation
A significant donation of HK$200 million will boost Hong Kong's AI development, particularly in deploying the large language model HKGAI V1 across various sectors like education, legal, medical, and transportation. The funds will also support the development of a mobile application version of HKGAI.
Read more here
Technological Upgrades Impacting the BFSI Sector
AI and ML are transforming the Banking, Financial Services, and Insurance (BFSI) sector by automating tasks, enhancing customer service, and improving risk management. Technologies like blockchain and RPA are also playing crucial roles in fraud prevention and process automation.
Read more here
Recommended Tool for Cosine Similarity - scikit-learn
scikit-learn is a Python library that provides a wide range of algorithms for machine learning tasks, including tools for calculating cosine similarity. It offers a simple and efficient way to compute cosine similarity between vectors, making it ideal for text analysis and other applications.
Thank you for joining me in this exploration of cosine similarity! I hope you found this edition informative and engaging. Until next time, keep exploring!
Learn the Roadmap to making $100k using LinkedIn & AI 🚀
LinkedIn isn’t just a social platform—it’s a goldmine when you combine it with AI.
In his AI Powered LinkedIn Workshop, you will learn how to harness the power of LinkedIn as a founder, business owner, or salaried professional.
In this workshop, you will learn about how to:
👉 Automate lead generation to grow your business while you sleep
👉 Leverage AI to land high-paying jobs without wasting hours on applications
👉 Master his $100K LinkedIn Outbound Strategy to boost revenue effortlessly
This workshop is the real deal for anyone who wants to dominate LinkedIn in 2025 and beyond.
But it’s only FREE for the first 100 people. After that, the price jumps back to $399.
Claim Your Free Spot Now (Only 100 free seats!)