Chapter 1

Indexing

Inverted index

medium • 1 min read

Zipf's law

medium • 2 min read

Stop words

medium • 3 min read

Lemmatization

medium • 4 min read

Spelling correct

medium • 5 min read

Chapter 2

Models

Boolean model

medium • 1 min read

Vector space

medium • 2 min read

TF-IDF weights

medium • 3 min read

Cosine similarity

medium • 4 min read

Probabilistic

medium • 5 min read

Chapter 3

Evaluation

Precision recall

medium • 1 min read

F-measure

medium • 2 min read

MAP score

medium • 3 min read

NDCG ranking

medium • 4 min read

User feedback

medium • 5 min read

Chapter 4

Web Crawl

Politeness rule

medium • 1 min read

PageRank math

medium • 2 min read

HITS algorithm

medium • 3 min read

Duplicate detect

medium • 4 min read

Deep web

medium • 5 min read

Chapter 5

NLP Basics

NER tags

medium • 1 min read

Sentiment analysis

medium • 2 min read

Transformer IR

medium • 3 min read

BERT semantic

medium • 4 min read

Vector DB

medium • 5 min read