← Search

Ligeng Zhu

18 accepted papers

2026

Fast-dLLM: Training-free Acceleration of Diffusion LLM by Enabling KV Cache and Parallel Decoding

ICLR 2026poster

Diffusion-based large language models (Diffusion LLMs) have shown promise for non-autoregressive text generation. However, the practical inference speed of open-sourced Diffusion LLMs often lags behind autoregressive models due to the lack of Key-Value (KV) Cache and quality degradation when decodin…

Cited by 0SourceScholar
2026

OmniVinci: Enhancing Architecture and Data for Omni-Modal Understanding LLM

ICLR 2026poster

Advancing machine intelligence requires developing the ability to perceive across multiple modalities, much as humans sense the world. We introduce OmniVinci, an initiative to build a strong, open-source, omni-modal LLM. We carefully study the design choices across model architecture and data curati…

Cited by 0SourcecodeScholar
2025

COAT: Compressing Optimizer states and Activations for Memory-Efficient FP8 Training

ICLR 2025poster

FP8 training has emerged as a promising method for improving training efficiency. Existing frameworks accelerate training by applying FP8 computation to linear layers while leaving optimizer states and activations in higher precision, which fails to fully optimize memory usage. This paper introduces…

Cited by 4SourcePDFScholar
2025

LongVILA: Scaling Long-Context Visual Language Models for Long Videos

ICLR 2025poster

Long-context capability is critical for multi-modal foundation models, especially for long video understanding. We introduce LongVILA, a full-stack solution for long-context visual-language models by co-designing the algorithm and system. For model training, we upgrade existing VLMs to support long…

2025

NVILA: Efficient Frontier Visual Language Models

CVPR 2025poster

Visual language models (VLMs) have made significant advances in accuracy in recent years. However, their efficiency has received much less attention. This paper introduces NVILA, a family of open VLMs designed to optimize both efficiency and accuracy. Building on top of VILA, we improve its model ar…

Cited by 43SourcePDFScholar
2025

SANA 1.5: Efficient Scaling of Training-Time and Inference-Time Compute in Linear Diffusion Transformer

ICML 2025poster

This paper presents SANA-1.5, a linear Diffusion Transformer for efficient scaling in text-to-image generation. Building upon SANA-1.0, we introduce three key innovations: (1) Efficient Training Scaling: A depth-growth paradigm that enables scaling from 1.6B to 4.8B parameters with significantly red…

2025

SANA: Efficient High-Resolution Text-to-Image Synthesis with Linear Diffusion Transformers

ICLR 2025oral

We introduce Sana, a text-to-image framework that can efficiently generate images up to 4096$\times$4096 resolution. Sana can synthesize high-resolution, high-quality images with strong text-image alignment at a remarkably fast speed, deployable on laptop GPU. Core designs include: (1) Deep compress…

Cited by 79SourcePDFScholar
2025

SparseLoRA: Accelerating LLM Fine-Tuning with Contextual Sparsity

ICML 2025poster

Fine-tuning LLMs is both computationally and memory-intensive. While parameter-efficient fine-tuning methods, such as QLoRA and DoRA, reduce the number of trainable parameters and lower memory usage, they do not decrease computational cost. In some cases, they may even slow down fine-tuning. In this…

Cited by 0SourcePDFScholar
2025

VILA-U: a Unified Foundation Model Integrating Visual Understanding and Generation

ICLR 2025poster

VILA-U is a Unified foundation model that integrates Video, Image, Language understanding and generation. Traditional visual language models (VLMs) use separate modules for understanding and generating visual content, which can lead to misalignment and increased complexity. In contrast, VILA-U emplo…

2022

On-Device Training Under 256KB Memory

NeurIPS 2022accept

On-device training enables the model to adapt to new data collected from the sensors by fine-tuning a pre-trained model. Users can benefit from customized AI models without having to transfer the data to the cloud, protecting the privacy. However, the training memory consumption is prohibitive for I…

Cited by 258SourcePDFScholar
2021

Delayed Gradient Averaging: Tolerate the Communication Latency for Federated Learning

NeurIPS 2021poster

Federated Learning is an emerging direction in distributed machine learning that en-ables jointly training a model without sharing the data. Since the data is distributed across many edge devices through wireless / long-distance connections, federated learning suffers from inevitable high communicat…

Cited by 76SourcePDFScholar
2020

DataMix: Efficient Privacy-Preserving Edge-Cloud Inference

ECCV 2020poster

Deep neural networks are widely deployed on edge devices (g, for computer vision and speech recognition). Users either perform the inference locally (\ie, edge-based) or send the data to the cloud and run inference remotely (\ie, cloud-based). However, both solutions have their limitations: edge dev…

Cited by 49SourcePDFScholar
2020

TinyTL: Reduce Memory, Not Parameters for Efficient On-Device Learning

NeurIPS 2020poster

Efficient on-device learning requires a small memory footprint at training time to fit the tight memory constraint. Existing work solves this problem by reducing the number of trainable parameters. However, this doesn't directly translate to memory saving since the major bottleneck is the activation…

2019

ProxylessNAS: Direct Neural Architecture Search on Target Task and Hardware

ICLR 2019poster

Neural architecture search (NAS) has a great impact by automatically designing effective neural network architectures. However, the prohibitive computational demand of conventional NAS algorithms (e.g. 10 4 GPU hours) makes it difficult to directly search the architectures on large-scale tasks (e.g.…

2018

Sparsely Aggregated Convolutional Networks

ECCV 2018poster

We explore a key architectural aspect of deep convolutional neural networks: the pattern of internal skip connections used to aggregate outputs of earlier layers for consumption by deeper layers. Such aggregation is critical to facilitate training of very deep networks in an end-to-end manner. This…