Document Summarization: Eval First
Build an extractive/abstractive summarization workflow with dataset splits, ROUGE/BERTScore, and human eval checklists.
Aug 14
11 min read
Subhajit Bhar
My Blog
Practical insights about Python, React, machine learning, and AI.
Aug 2025
NLP Entity Matching with Fuzzy Search
A practical guide to entity matching using TF-IDF, Jaro-Winkler, and embedding similarity with thresholds and evaluation.
Aug 14
10 min read
Subhajit Bhar
NLP Text Cleaning Pipeline
A practical, production-ready text cleaning pipeline for NLP tasks with regex rules, normalization, and evaluation hooks.
Aug 14
9 min read
Subhajit Bhar
LangChain: RAG Architecture & Code
RAG is a design pattern, not a product. LangChain supports it out of the box. This guide shows a production-ready RAG setup in LangChain with architecture, retrieval choices, runnable code, evaluation metrics, and trade-offs from my client projects.
Aug 2
12 min read
Subhajit Bhar
Jul 2025
LightRAG: Lean RAG with Benchmarks
LightRAG is a minimal RAG toolkit that strips away heavy abstractions. Here’s a complete build with code, performance numbers versus a LangChain baseline, and when LightRAG is the right choice.
Jul 30
12 min read
Subhajit Bhar
RAG for Knowledge-Intensive Tasks
Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks
Jul 24
5 min read
Subhajit Bhar
On-Page vs Off-Page SEO
Learn the fundamental differences between on-page and off-page SEO strategies and how they work together to boost your search rankings
Jul 12
5 min read
Subhajit Bhar
Aug 2024
Pandas: Handle Missing Values
Complete guide to detecting, analyzing, and handling missing values in pandas DataFrames using fillna, interpolation, and advanced imputation techniques.
Aug 15
8 min read
Subhajit Bhar
Jul 2024
Outliers in Python: IQR and Z-Score
Complete guide to outlier detection and removal using IQR, Z-Score, and isolation forest methods with practical Python examples.
Jul 25
9 min read
Subhajit Bhar
Jun 2024
NumPy: reshape() vs flatten()
Learn when to use reshape() vs flatten() in NumPy for array manipulation, with practical examples and performance comparisons.
Jun 30
7 min read
Subhajit Bhar