collaborators

8 papers

cs.IR2026

Nemotron ColEmbed V2: Top-Performing Late Interaction Embedding Models for Visual Document Retrieval

Gabriel de Souza P. Moreira, Ronay Ak, Mengyao Xu +9

Retrieval-Augmented Generation (RAG) systems have been popular for generative applications, powering language models by injecting external knowledge. Companies have been trying to…

cs.DB2026

HierarchicalKV: A GPU Hash Table with Cache Semantics for Continuous Online Embedding Storage

Haidong Rong, Jiashu Yao, Matthias Langer +12

Traditional GPU hash tables preserve every inserted key -- a dictionary assumption that wastes scarce High Bandwidth Memory (HBM) when embedding tables routinely exceed single-GPU…

cs.CL2025

Llama-Embed-Nemotron-8B: A Universal Text Embedding Model for Multilingual and Cross-Lingual Tasks

Yauhen Babakhin, Radek Osmulski, Ronay Ak +5

We introduce llama-embed-nemotron-8b, an open-weights text embedding model that achieves state-of-the-art performance on the Multilingual Massive Text Embedding Benchmark (MMTEB) l…

cs.CL2025

Omni-Embed-Nemotron: A Unified Multimodal Retrieval Model for Text, Image, Audio, and Video

Mengyao Xu, Wenfei Zhou, Yauhen Babakhin +6

We present Omni-Embed-Nemotron, a unified multimodal retrieval embedding model developed to handle the increasing complexity of real-world information needs. While Retrieval-Augmen…

cs.CV2025

Llama Nemoretriever Colembed: Top-Performing Text-Image Retrieval Model

Mengyao Xu, Gabriel Moreira, Ronay Ak +5

Motivated by the growing demand for retrieval systems that operate across modalities, we introduce llama-nemoretriever-colembed, a unified text-image retrieval model that delivers…

cs.IR2025

MIRACL-VISION: A Large, multilingual, visual document retrieval benchmark

Radek Osmulski, Gabriel de Souza P. Moreira, Ronay Ak +3

Document retrieval is an important task for search and Retrieval-Augmented Generation (RAG) applications. Large Language Models (LLMs) have contributed to improving the accuracy of…