Archive - Applied ML | Recommender systems

Ranking model calibration in recommender systems

We define calibration of ranking models in calibration, the benefit it can bring to prioritize calibration and how to achieve it without affecting…

Jun 9 •

Gaurav Chakravorty

and

May 2024

Entrypoint retention modeling in recommender systems

Choose/rank items at the entrypoint of a recommended feed to drive retention and not just consumption

May 24 •

Gaurav Chakravorty

,

, and

Optimal whole page ranking = reward / risk

We show how tech can learn from finance in using risk models for better feed construction of recommender systems.

May 11 •

Gaurav Chakravorty

and

User representation in a recommender system | memorization vs generalization

We look at memorization, generalization and mixture of representations based implementations for user preference representation in a recommender system

May 3 •

Gaurav Chakravorty

,

, and

January 2024

Reducing selection bias / popularity bias in ranking

Through the post, code and videos we show how to make your multi-task ranking model unbiased

Jan 20 •

Gaurav Chakravorty

and

How to reduce cost of ranking by knowledge distillation

Using knowledge distillation can make your early ranking model more aligned with final ranker + Sample Code + Video walkthrough

Jan 6 •

Gaurav Chakravorty

December 2023

Does your model get better at task T when you rank by estimated probability p(T) ?

To understand what to optimize in a ranking model

Dec 22, 2023 •

Gaurav Chakravorty

System design of an Early Ranker

Towards greater user satisfaction, recommendation quality, reduced latency and compute capacity savings + Sample code

Dec 15, 2023 •

Gaurav Chakravorty

November 2023

Early (Stage) Ranking in recommender systems

We look at "early (stage) ranking", why it is needed, what is success for it and end with a baseline implementation of it.

Nov 26, 2023 •

Gaurav Chakravorty

August 2022

Using ML to build a social networking notification system

System design of an ML driven notification system of a social network

Aug 26, 2022 •

Gaurav Chakravorty

July 2022

Life of a search query

Presentation of how search is today and how that is very different from the mental model users have of search in early 2000s

Jul 30, 2022 •

Gaurav Chakravorty

June 2022

How to build ML-first products

Problems companies face in adopting ML and how to solve them

Jun 24, 2022 •

Gaurav Chakravorty

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