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Chaojian Li

13 accepted papers

2026

Scalable Training of 3D Gaussian Splatting via Out-of-Core Optimization

ICML 2026spotlight

Training 3D Gaussian Splatting (3DGS) at billion-primitive scale is fundamentally memory-bound: each Gaussian carries a large attribute vector, and the aggregate parameter table quickly exceeds GPU capacity, limiting prior systems to tens of millions of Gaussians on consumer hardware. We observe tha…

Cited by 0SourceScholar
2025

Early-Bird Diffusion: Investigating and Leveraging Timestep-Aware Early-Bird Tickets in Diffusion Models for Efficient Training

CVPR 2025poster

Training diffusion models (DMs) requires substantial computational resources due to multiple forward and backward passes across numerous timesteps, motivating research into efficient training techniques. In this paper, we propose EB-Diff-Train, a new efficient DM training approach that is orthogonal…

2024

3D Gaussian Rendering Can Be Sparser: Efficient Rendering via Learned Fragment Pruning

NeurIPS 2024poster

3D Gaussian splatting has recently emerged as a promising technique for novel view synthesis from sparse image sets, yet comes at the cost of requiring millions of 3D Gaussian primitives to reconstruct each 3D scene. This largely limits its application to resource-constrained devices and application…

2024

Omni-Recon: Harnessing Image-based Rendering for General-Purpose Neural Radiance Fields

ECCV 2024oral

"Recent breakthroughs in Neural Radiance Fields (NeRFs) have sparked significant demand for their integration into real-world 3D applications. However, the varied functionalities required by different 3D applications often necessitate diverse NeRF models with various pipelines, leading to tedious Ne…

2023

ERSAM: Neural Architecture Search for Energy-Efficient and Real-Time Social Ambiance Measurement

ICASSP 2023accepted

Social ambiance describes the context in which social interactions happen, and can be measured using speech audio by counting the number of concurrent speakers. This measurement has enabled various mental health tracking and human-centric IoT applications. While on-device Socal Ambiance Measure (SAM…

Cited by 0SourceScholar
2022

MIA-Former: Efficient and Robust Vision Transformers via Multi-Grained Input-Adaptation

AAAI 2022technical

Vision transformers have recently demonstrated great success in various computer vision tasks, motivating a tremendously increased interest in their deployment into many real-world IoT applications. However, powerful ViTs are often too computationally expensive to be fitted onto real-world resourc…

2021

HW-NAS-Bench: Hardware-Aware Neural Architecture Search Benchmark

ICLR 2021spotlight

HardWare-aware Neural Architecture Search (HW-NAS) has recently gained tremendous attention by automating the design of deep neural networks deployed in more resource-constrained daily life devices. Despite its promising performance, developing optimal HW-NAS solutions can be prohibitively challengi…

2020

DNN-Chip Predictor: An Analytical Performance Predictor for DNN Accelerators with Various Dataflows and Hardware Architectures

ICASSP 2020accepted

The recent breakthroughs in deep neural networks (DNNs) have spurred a tremendously increased demand for DNN accelerators. However, designing DNN accelerators is non-trivial as it often takes months/years and requires cross-disciplinary knowledge. To enable fast and effective DNN accelerator develop…

Cited by 0SourceScholar
2020

Drawing Early-Bird Tickets: Toward More Efficient Training of Deep Networks

ICLR 2020spotlight

(Frankle & Carbin, 2019) shows that there exist winning tickets (small but critical subnetworks) for dense, randomly initialized networks, that can be trained alone to achieve comparable accuracies to the latter in a similar number of iterations. However, the identification of these winning tickets…

Cited by 310SourcecodeScholar
2020

FracTrain: Fractionally Squeezing Bit Savings Both Temporally and Spatially for Efficient DNN Training

NeurIPS 2020poster

Recent breakthroughs in deep neural networks (DNNs) have fueled a tremendous demand for intelligent edge devices featuring on-site learning, while the practical realization of such systems remains a challenge due to the limited resources available at the edge and the required massive training costs…

2020

HALO: Hardware-Aware Learning to Optimize

ECCV 2020poster

There has been an explosive demand for bringing machine learning (ML) powered intelligence into numerous Internet-of-Things (IoT) devices. However, the effectiveness of such intelligent functionality requires in-situ continuous model adaptation for adapting to new data and environments, while the on…

2020

ShiftAddNet: A Hardware-Inspired Deep Network

NeurIPS 2020poster

Multiplication (e.g., convolution) is arguably a cornerstone of modern deep neural networks (DNNs). However, intensive multiplications cause expensive resource costs that challenge DNNs' deployment on resource-constrained edge devices, driving several attempts for multiplication-less deep networks.…