Simon Lupart

slupart

https://simonlupart.github.io/

AI & ML interests

My research mainly focuses on IR and conversational AI, working on distribution shifts, adversarial training, Large Language Models (LLMs) and Retrieval Augmented Generation (RAG).

Recent Activity

upvoted a paper 3 days ago

Search for Coverage: Learning Coverage-Aware Retrieval with Augmented Sub-Question Answerability

updated a dataset 11 days ago

uva-irlab/ikat-index-bm25

upvoted an article 14 days ago

MTEB Leaderboard: From a slow demo to feature-rich leaderboard

View all activity

Organizations

upvoted a paper 3 days ago

Search for Coverage: Learning Coverage-Aware Retrieval with Augmented Sub-Question Answerability

Paper • 2605.28522 • Published about 1 month ago • 2

upvoted an article 14 days ago

Article

MTEB Leaderboard: From a slow demo to feature-rich leaderboard

Samoed

•

14 days ago

• 22

upvoted a collection about 1 month ago

MILCO: Multilingual Learned Sparse Retrieval

Collection

MILCO maps queries and documents from different languages into a shared English lexical space via a multilingual connector. • 4 items • Updated May 15 • 4

upvoted a paper about 1 month ago

Milco: Learned Sparse Retrieval Across Languages via a Multilingual Connector

Paper • 2510.00671 • Published Oct 1, 2025 • 3

upvoted 2 collections about 1 month ago

Amharic Fine-tuned Multilingual Retrievers

Collection

3 items • Updated May 22 • 2

Command A Plus

Collection

4 items • Updated May 20 • 44

upvoted a paper about 1 month ago

Smarter, Better, Faster, Longer: A Modern Bidirectional Encoder for Fast, Memory Efficient, and Long Context Finetuning and Inference

Paper • 2412.13663 • Published Dec 18, 2024 • 167

upvoted 3 collections 2 months ago

upvoted a paper 2 months ago

ChatR1: Reinforcement Learning for Conversational Reasoning and Retrieval Augmented Question Answering

Paper • 2510.13312 • Published Oct 15, 2025 • 2

upvoted a paper 3 months ago

Revisiting Text Ranking in Deep Research

Paper • 2602.21456 • Published Feb 25 • 7

upvoted a changelog 3 months ago

Hugging Face Changelog

Agent Traces on the Hub

Apr 7

• 146

upvoted a collection 3 months ago

Gemma 4

Collection

Gemma 4 is Google's new model family including including E2B, E4B, 26B-A4B, and 31B. • 36 items • Updated 11 days ago • 222

upvoted an article 3 months ago

Article

Training and Finetuning Sparse Embedding Models with Sentence Transformers

tomaarsen, arthurbresnu

•

Jul 1, 2025

• 138

upvoted a paper 3 months ago

On the Challenges and Opportunities of Learned Sparse Retrieval for Code

Paper • 2603.22008 • Published Mar 23 • 4

upvoted a collection 3 months ago

Splade-Code

Collection

Learned Sparse Retrieval Models for Code • 3 items • Updated Mar 24 • 5

upvoted an article 4 months ago

Article

PISCO-OSCAR: embeddings for efficient Retrieval-Augmented Generation

maxoul

•

Jun 18, 2025

• 3

upvoted a collection 10 months ago

QReCC

Collection

QReCC (Question Rewriting in Conversational Context) for passage retrieval and QA • 2 items • Updated Aug 25, 2025 • 1

upvoted a collection 11 months ago

gpt-oss

Collection

Open-weight models designed for powerful reasoning, agentic tasks, and versatile developer use cases. • 2 items • Updated Aug 7, 2025 • 447

Simon Lupart

AI & ML interests

Recent Activity

Organizations

slupart's activity

MTEB Leaderboard: From a slow demo to feature-rich leaderboard

Agent Traces on the Hub

Training and Finetuning Sparse Embedding Models with Sentence Transformers

PISCO-OSCAR: embeddings for efficient Retrieval-Augmented Generation