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Xuan Shen

24 accepted papers

2026

Efficient Reasoning with Hidden Thinking

ICML 2026poster

Chain-of-Thought (CoT) reasoning has become a powerful framework for improving complex problem-solving capabilities in Multimodal Large Language Models (MLLMs). However, the verbose nature of textual reasoning introduces significant inefficiencies. In this work, we propose**Heima** (as hidden llama)…

Cited by 0SourcecodeScholar
2026

Fastcar: Cache Attentive Replay for Fast Auto-Regressive Video Generation on the Edge

ICLR 2026poster

Auto-regressive (AR) models, initially successful in language generation, have recently shown promise in visual generation tasks due to their superior sampling efficiency. Unlike image generation, video generation requires a substantially larger number of tokens to produce coherent temporal frames,…

Cited by 0SourcecodeScholar
2026

OIDA-QA: A Multimodal Benchmark for Analyzing the Opioid Industry Documents Archive

AAAI 2026technical

The opioid crisis represents a significant moment in public health that reveals systemic shortcomings across regulatory systems, healthcare practices, corporate governance, and public policy. Analyzing how these interconnected systems simultaneously failed to protect public health requires innovativ

Cited by 0SourcePDFScholar
2025

FairSMOE: Mitigating Multi-Attribute Fairness Problem with Sparse Mixture-of-Experts

IJCAI 2025

Real‐world datasets usually contain multiple attributes, making it essential to ensure fairness across all of them simultaneously. However, different attributes may vary in difficulty, and no existing approaches have effectively addressed this issue. Consequently, an attribute‐adaptive strategy is n

Cited by 0SourcePDFScholar
2025

LazyDiT: Lazy Learning for the Acceleration of Diffusion Transformers

AAAI 2025technical

Diffusion Transformers have emerged as the preeminent models for a wide array of generative tasks, demonstrating superior performance and efficacy across various applications. The promising results come at the cost of slow inference, as each denoising step requires running the whole transformer mode…

2025

Numerical Pruning for Efficient Autoregressive Models

AAAI 2025technical

Transformers have emerged as the leading architecture in deep learning, proving to be versatile and highly effective across diverse domains beyond language and image processing. However, their impressive performance often incurs high computational costs due to their substantial model size. This pape…

Cited by 10SourcePDFScholar
2025

QuartDepth: Post-Training Quantization for Real-Time Depth Estimation on the Edge

CVPR 2025poster

Monocular Depth Estimation (MDE) has emerged as a pivotal task in computer vision, supporting numerous real-world applications. However, deploying accurate depth estimation models on resource-limited edge devices, especially Application-Specific Integrated Circuits (ASICs), is challenging due to the…

2025

RoRA: Efficient Fine-Tuning of LLM with Reliability Optimization for Rank Adaptation

ICASSP 2025accepted

Fine-tuning helps large language models (LLM) recover degraded information and enhance task performance. Although Low-Rank Adaptation (LoRA) is widely used and effective for fine-tuning, we have observed that its scaling factor can limit or even reduce performance as the rank size increases. To addr…

Cited by 0SourceScholar
2025

Sparse Learning for State Space Models on Mobile

ICLR 2025poster

Transformer models have been widely investigated in different domains by providing long-range dependency handling and global contextual awareness, driving the development of popular AI applications such as ChatGPT, Gemini, and Alexa. State Space Models (SSMs) have emerged as strong contenders in the…

Cited by 1SourcePDFScholar
2025

Toward Adaptive Large Language Models Structured Pruning via Hybrid-grained Weight Importance Assessment

AAAI 2025technical

Structured pruning for large language models (LLMs) has garnered significant academic interest due to its ability to efficiently compress and accelerate LLMs by eliminating redundant weight groups at a coarse-grained granularity. Current structured pruning methods for LLMs typically depend on a sing…

2024

Agile-Quant: Activation-Guided Quantization for Faster Inference of LLMs on the Edge

AAAI 2024technical

Large Language Models (LLMs) stand out for their impressive performance in intricate language modeling tasks. However, their demanding computational and memory needs pose obstacles for broad use on edge devices. Quantization is then introduced to boost LLMs' on-device efficiency. Recent works show t…

2024

Exploring Token Pruning in Vision State Space Models

NeurIPS 2024poster

State Space Models (SSMs) have the advantage of keeping linear computational complexity compared to attention modules in transformers, and have been applied to vision tasks as a new type of powerful vision foundation model. Inspired by the observations that the final prediction in vision transformer…

Cited by 6SourcePDFScholar
2024

Pruning Foundation Models for High Accuracy without Retraining

EMNLP 2024finding

Despite the superior performance, it is challenging to deploy large language models (LLMs) due to their massive parameters and computations. While pruning is a promising technique to reduce model size and accelerate the inference, the traditional pruning techniques can hardly be applied for LLMs as…

2024

Rethinking Token Reduction for State Space Models

EMNLP 2024main

Recent advancements in State Space Models (SSMs) have attracted significant interest, particularly in models optimized for parallel training and handling long-range dependencies. Architectures like Mamba have scaled to billions of parameters with selective SSM. To facilitate broader applications usi…

2024

Search for Efficient Large Language Models

NeurIPS 2024poster

Large Language Models (LLMs) have long held sway in the realms of artificial intelligence research. Numerous efficient techniques, including weight pruning, quantization, and distillation, have been embraced to compress LLMs, targeting memory reduction and inference acceleration, which underscore th…

2023

Data Level Lottery Ticket Hypothesis for Vision Transformers

IJCAI 2023poster

The conventional lottery ticket hypothesis (LTH) claims that there exists a sparse subnetwork within a dense neural network and a proper random initialization method, called the winning ticket, such that it can be trained from scratch to almost as good as the dense counterpart. Meanwhile, the resear…

2023

DeepMAD: Mathematical Architecture Design for Deep Convolutional Neural Network

CVPR 2023poster

The rapid advances in Vision Transformer (ViT) refresh the state-of-the-art performances in various vision tasks, overshadowing the conventional CNN-based models. This ignites a few recent striking-back research in the CNN world showing that pure CNN models can achieve as good performance as ViT mod…

2023

Peeling the Onion: Hierarchical Reduction of Data Redundancy for Efficient Vision Transformer Training

AAAI 2023technical

Vision transformers (ViTs) have recently obtained success in many applications, but their intensive computation and heavy memory usage at both training and inference time limit their generalization. Previous compression algorithms usually start from the pre-trained dense models and only focus on eff…

2022

SPViT: Enabling Faster Vision Transformers via Latency-Aware Soft Token Pruning

ECCV 2022poster

"Recently, Vision Transformer (ViT) has continuously established new milestones in the computer vision field, while the high computation and memory cost makes its propagation in industrial production difficult. Considering the computation complexity, the internal data pattern of ViTs, and the edge d…

2021

Lottery Ticket Preserves Weight Correlation: Is It Desirable or Not?

ICML 2021spotlight

In deep model compression, the recent finding "Lottery Ticket Hypothesis" (LTH) pointed out that there could exist a winning ticket (i.e., a properly pruned sub-network together with original weight initialization) that can achieve competitive performance than the original dense network. However, it…

Cited by 38SourcePDFScholar
2021

NPAS: A Compiler-Aware Framework of Unified Network Pruning and Architecture Search for Beyond Real-Time Mobile Acceleration

CVPR 2021poster

With the increasing demand to efficiently deploy DNNs on mobile edge devices, it becomes much more important to reduce unnecessary computation and increase the execution speed. Prior methods towards this goal, including model compression and network architecture search (NAS), are largely performed i…

Cited by 34PDFcodeScholar
2021

Sanity Checks for Lottery Tickets: Does Your Winning Ticket Really Win the Jackpot?

NeurIPS 2021poster

There have been long-standing controversies and inconsistencies over the experiment setup and criteria for identifying the "winning ticket" in literature. To reconcile such, we revisit the definition of lottery ticket hypothesis, with comprehensive and more rigorous conditions. Under our new definit…

2021

Towards Fast and Accurate Multi-Person Pose Estimation on Mobile Devices

IJCAI 2021poster

The rapid development of autonomous driving, abnormal behavior detection, and behavior recognition makes an increasing demand for multi-person pose estimation-based applications, especially on mobile platforms. However, to achieve high accuracy, state-of-the-art methods tend to have a large model si…

Cited by 11SourcePDFScholar