Motivation

Information Retrieval

Information retrieval (IR) is the activity of obtaining information system resources relevant to an information need from a collection.

Web search engines are the most visible IR applications.

Notes: What is the motivation for information retrieval? What are some use cases?

Search is everywhere

Internet
eCommerce
CMS, Blogs
Intranet
Academia
...

Challenges

High result quality
User friendly
Fast, scalable

Outlook

Understand fundamental search data structures and algorithms
BYOG (Build your own Google)
Use Elasticsearch to build search-enabled applications
Word Embeddings
Vector Search
Retrieval-Augmented Generation
Multimodal Retrieval