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20212026
most citedLearning Interface Conditions in Domain Decomposition Solvers

6 citations · 15 across the 21 of their papers we have counts for

collaborators

26 papers

cs.LG2026

AutoCompress: Automated Hardware-Guided Model Compression

Sheldon Liang, Ali Taghibakhshi, Saurav Muralidharan +4

LLM pruning must preserve quality while meeting hardware- and workload-specific constraints on latency, throughput, and memory. Existing pruning workflows often target parameter co…

cs.AI2026

You don't need long context

Peter Belcak, Saurav Muralidharan, Jindong Jiang +9

Later tokens are costlier to generate than earlier tokens. On frontier open weight models, the disparity in cost may rise to as much as 7x. Through frequent compaction, we show acr…

math.CA2026

Uncertainty principles as forcing mechanisms

Laurent Massoulié

In this note we first consider the Heisenberg uncertainty principle. We show that it acts as a {\bf forcing mechanism} in the following sense. Real functions that approach its limi…

cs.CV2026

Accelerating Video Diffusion via Training-Free Trajectory Routing

Mustafa Munir, Huy Vu, Shreyas Misra +7

Video diffusion is computationally expensive, as it requires executing a large model across many denoising steps. Even with step-distillation, inference remains expensive because e…

cs.AI2026

Nemotron-Labs-3-Puzzle-75B-A9B: Compressing Hybrid MoE LLMs

Akhiad Bercovich, Talor Abramovich, Daniel Afrimi +67

We present Nemotron-Labs-3-Puzzle-75B-A9B, a compressed variant of Nemotron-3-Super optimized for interactive deployment. We designed the model to maximize server throughput under…

cs.CL2026

Nemotron 3 Ultra: Open, Efficient Mixture-of-Experts Hybrid Mamba-Transformer Model for Agentic Reasoning

NVIDIA, :, Aaron Blakeman +572

We introduce Nemotron 3 Ultra, a 550 billion total and 55 billion active parameter Mixture-of-Experts Hybrid Mamba-Attention language model. We pre-trained Nemotron 3 Ultra on 20 t…

cs.LG2026

X-Token: Projection-Guided Cross-Tokenizer Knowledge Distillation

Sharath Turuvekere Sreenivas, Adithyakrishna Venkatesh Hanasoge, Mingyu Yang +4

Cross-tokenizer knowledge distillation allows a student to learn from teachers with incompatible vocabularies while preserving its tokenizer and inference architecture. Existing lo…

cs.LG2026

Star Elastic: Many-in-One Reasoning LLMs with Efficient Budget Control

Ali Taghibakhshi, Ruisi Cai, Saurav Muralidharan +17

Training a family of large language models (LLMs), either from scratch or via iterative compression, is prohibitively expensive and inefficient, requiring separate training runs fo…

cs.LG2026

Nemotron 3 Super: Open, Efficient Mixture-of-Experts Hybrid Mamba-Transformer Model for Agentic Reasoning

NVIDIA, :, Aakshita Chandiramani +544

We describe the pre-training, post-training, and quantization of Nemotron 3 Super, a 120 billion (active 12 billion) parameter hybrid Mamba-Attention Mixture-of-Experts model. Nemo…

cs.CL2025★ 1 cited

NVIDIA Nemotron 3: Efficient and Open Intelligence

NVIDIA, :, Aaron Blakeman +356

We introduce the Nemotron 3 family of models - Nano, Super, and Ultra. These models deliver strong agentic, reasoning, and conversational capabilities. The Nemotron 3 family uses a…

cs.CL2025

Nemotron 3 Nano: Open, Efficient Mixture-of-Experts Hybrid Mamba-Transformer Model for Agentic Reasoning

NVIDIA, :, Aaron Blakeman +311

We present Nemotron 3 Nano 30B-A3B, a Mixture-of-Experts hybrid Mamba-Transformer language model. Nemotron 3 Nano was pretrained on 25 trillion text tokens, including more than 3 t…

cs.CL2025

Nemotron Elastic: Towards Efficient Many-in-One Reasoning LLMs

Ali Taghibakhshi, Sharath Turuvekere Sreenivas, Saurav Muralidharan +13

Training a family of large language models targeting multiple scales and deployment objectives is prohibitively expensive, requiring separate training runs for each different size.…

cs.CL2025

NVIDIA Nemotron Nano 2: An Accurate and Efficient Hybrid Mamba-Transformer Reasoning Model

NVIDIA, :, Aarti Basant +214

We introduce Nemotron-Nano-9B-v2, a hybrid Mamba-Transformer language model designed to increase throughput for reasoning workloads while achieving state-of-the-art accuracy compar…

cs.CL2025

Minitron-SSM: Efficient Hybrid Language Model Compression through Group-Aware SSM Pruning

Ali Taghibakhshi, Sharath Turuvekere Sreenivas, Saurav Muralidharan +15

Hybrid LLM architectures that combine Attention and State Space Models (SSMs) achieve state-of-the-art accuracy and runtime performance. Recent work has demonstrated that applying…

cs.CL2025

Nemotron-H: A Family of Accurate and Efficient Hybrid Mamba-Transformer Models

NVIDIA, :, Aaron Blakeman +198

As inference-time scaling becomes critical for enhanced reasoning capabilities, it is increasingly becoming important to build models that are efficient to infer. We introduce Nemo…

cs.LG2025

Systems and Algorithms for Convolutional Multi-Hybrid Language Models at Scale

Jerome Ku, Eric Nguyen, David W. Romero +13

We introduce convolutional multi-hybrid architectures, with a design grounded on two simple observations. First, operators in hybrid models can be tailored to token manipulation ta…

cs.CV2024

Elucidating Optimal Reward-Diversity Tradeoffs in Text-to-Image Diffusion Models

Rohit Jena, Ali Taghibakhshi, Sahil Jain +3

Text-to-image (T2I) diffusion models have become prominent tools for generating high-fidelity images from text prompts. However, when trained on unfiltered internet data, these mod…

cs.CL2024

NeMo-Aligner: Scalable Toolkit for Efficient Model Alignment

Gerald Shen, Zhilin Wang, Olivier Delalleau +10

Aligning Large Language Models (LLMs) with human values and preferences is essential for making them helpful and safe. However, building efficient tools to perform alignment can be…

cs.LG2023

Hierarchical Graph Neural Network with Cross-Attention for Cross-Device User Matching

Ali Taghibakhshi, Mingyuan Ma, Ashwath Aithal +3

Cross-device user matching is a critical problem in numerous domains, including advertising, recommender systems, and cybersecurity. It involves identifying and linking different d…

cs.LG2023★ 3 cited

MG-GNN: Multigrid Graph Neural Networks for Learning Multilevel Domain Decomposition Methods

Ali Taghibakhshi, Nicolas Nytko, Tareq Uz Zaman +3

Domain decomposition methods (DDMs) are popular solvers for discretized systems of partial differential equations (PDEs), with one-level and multilevel variants. These solvers rely…

math.NA2023

Generalizing Lloyd's algorithm for graph clustering

Tareq Zaman, Nicolas Nytko, Ali Taghibakhshi +3

Clustering is a commonplace problem in many areas of data science, with applications in biology and bioinformatics, understanding chemical structure, image segmentation, building r…

math.NA2022

Generalizing Reduction-Based Algebraic Multigrid

Tareq Zaman, Nicolas Nytko, Ali Taghibakhshi +3

Algebraic Multigrid (AMG) methods are often robust and effective solvers for solving the large and sparse linear systems that arise from discretized PDEs and other problems, relyin…

cs.LG2022★ 2 cited

Optimized Sparse Matrix Operations for Reverse Mode Automatic Differentiation

Nicolas Nytko, Ali Taghibakhshi, Tareq Uz Zaman +3

Sparse matrix representations are ubiquitous in computational science and machine learning, leading to significant reductions in compute time, in comparison to dense representation…

cs.LG2022★ 6 cited

Learning Interface Conditions in Domain Decomposition Solvers

Ali Taghibakhshi, Nicolas Nytko, Tareq Zaman +3

Domain decomposition methods are widely used and effective in the approximation of solutions to partial differential equations. Yet the optimal construction of these methods requir…