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AI Lesson & Submodule

Cosine Similarity

Deep dive into Cosine Similarity calculations and normalization.

Why This Matters

Cosine similarity checks the angle alignment of vectors, making it length-invariant.

What You Will Learn

  • •Write Cosine similarity code
  • •Normalize float vectors
  • •Verify angle sizes

Concepts Covered

Cosine similarity formulaVector normalizations mathTheta alignment angles

Mapped Foundation Project: Resume / JD Matcher

Semantic matching workspace that parses resumes, converts paragraphs into vector embeddings, and measures job description fits.

Architecture Preview

Pipeline mapping files uploads to text, calling embed endpoints, and plotting relative match score vectors.

PDF Resume InputJD Text InputEmbeddings API
Tech Stack Planned
ReactTypeScriptChart.js
GitHub: Coming SoonLive Demo: Coming Soon
Coming Soon

Technical Interview Value

  • ?Implement a Cosine similarity function in TypeScript using native array operations
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