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Lujun Li

32 accepted papers

2026

IndexMem: Learned KV-Cache Eviction with Latent Memory for Long-Context LLM Inference

ICML 2026poster

Large Language Models (LLMs) are increasingly expected to operate over long contexts, yet standard softmax attention incurs a KV cache that grows linearly with sequence length, quickly becoming the bottleneck for long context inference. A practical remedy is to evict less important KV entries; howev…

Cited by 0SourceScholar
2026

Outlier Matters: Efficient Long-to-Short Reasoning via Outlier-Guided Model Merging

AAAI 2026technical

Large Reasoning Language Models (LRMs) have recently shown remarkable performance in complex reasoning tasks, but their extensive reasoning chains incur substantial computational overhead. To address this challenge, we propose Outlier-aware Reasoning Conciseness Adaptive Merge (ORCA), a novel plug-a

Cited by 0SourcePDFScholar
2026

Sub-MoE: Efficient Mixture-of-Expert LLMs Compression via Subspace Expert Merging

AAAI 2026technical

Mixture of Experts (MoE) LLMs face significant obstacles due to their massive parameter scale, which imposes memory, storage, and deployment challenges. Although recent expert merging methods aim to achieve greater efficiency by consolidating several experts, they are fundamentally hindered by param

Cited by 0SourcePDFScholar
2025

AIRA: Activation-Informed Low-Rank Adaptation for Large Models

ICCV 2025poster

Low-Rank Adaptation (LoRA) is a widely used method for efficiently fine-tuning large models by introducing low-rank matrices into weight updates. However, existing LoRA techniques fail to account for activation information, such as outliers, which significantly impact model performance. This omissio…

2025

BayesKD: Bayesian Knowledge Distillation for Compact LLMs in Constrained Fine-tuning Scenarios

ACL 2025finding

Large language models (LLMs) have revolutionized various domains with their remarkable capabilities, but their massive parameter sizes pose significant challenges for fine-tuning and inference, especially in resource-constrained environments. Conventional compression methods often result in substant…

Cited by 0SourcePDFScholar
2025

Can Compressed LLMs Truly Act? An Empirical Evaluation of Agentic Capabilities in LLM Compression

ICML 2025poster

Post-training compression reduces the computational and memory costs of large language models (LLMs), enabling resource-efficient deployment. However, existing compression benchmarks focus narrowly on language modeling (e.g., perplexity) and natural language understanding tasks (e.g., GLUE accuracy)…

2025

Delta Decompression for MoE-based LLMs Compression

ICML 2025poster

Mixture-of-Experts (MoE) architectures in large language models (LLMs) achieve exceptional performance, but face prohibitive storage and memory requirements. To address these challenges, we present $D^2$-MoE, a new delta decompression compressor for reducing the parameters of MoE LLMs. Based on obse…

2025

Efficient Fine-Tuning of Large Models via Nested Low-Rank Adaptation

ICCV 2025poster

Low-Rank Adaptation (LoRA) has become a popular paradigm for fine-tuning large models, but it still necessitates a substantial number of training parameters. To address this issue, we first conduct comprehensive empirical studies on parameter-efficient LoRA structure. Then, we establish design guide…

2025

How LLMs React to Industrial Spatio-Temporal Data? Assessing Hallucination with a Novel Traffic Incident Benchmark Dataset

NAACL 2025industry

Large language models (LLMs) hold revolutionary potential to digitize and enhance the Health & Public Services (H&PS) industry. Despite their advanced linguistic abilities, concerns about accuracy, stability, and traceability still persist, especially in high-stakes areas such as transportation syst…

Cited by 0SourcePDFScholar
2025

MoE-SVD: Structured Mixture-of-Experts LLMs Compression via Singular Value Decomposition

ICML 2025poster

Mixture of Experts (MoE) architecture improves Large Language Models (LLMs) with better scaling, but its higher parameter counts and memory demands create challenges for deployment. In this paper, we present MoE-SVD, a new decomposition-based compression framework tailored for MoE LLMs without any e…

2025

ParZC: Parametric Zero-Cost Proxies for Efficient NAS

AAAI 2025technical

Recent advancements in Zero-shot Neural Architecture Search (NAS) highlight the ability of zero-cost proxies in identifying superior architecture. However, we identify a critical issue with current zero-cost proxies: they aggregate node-wise zero-cost statistics without considering that not all node…

Cited by 7SourcePDFScholar
2025

STBLLM: Breaking the 1-Bit Barrier with Structured Binary LLMs

ICLR 2025poster

In this paper, we present the first structural binarization method for LLM compression to less than 1-bit precision. Although LLMs have achieved remarkable performance, their memory-bound nature during the inference stage hinders the adoption of resource-constrained devices. Reducing weights to 1-bi…

2024

Adaptive Layer Sparsity for Large Language Models via Activation Correlation Assessment

NeurIPS 2024poster

Large Language Models (LLMs) have revolutionized the field of natural language processing with their impressive capabilities. However, their enormous size presents challenges for deploying them in real-world applications. Traditional compression techniques, like pruning, often lead to suboptimal per…

2024

AttnZero: Efficient Attention Discovery for Vision Transformers

ECCV 2024poster

"In this paper, we present AttnZero, the first framework for automatically discovering efficient attention modules tailored for Vision Transformers (ViTs). While traditional self-attention in ViTs suffers from quadratic computation complexity, linear attention offers a more efficient alternative wit…

2024

Auto-GAS: Automated Proxy Discovery for Training-free Generative Architecture Search

ECCV 2024poster

"In this paper, we introduce Auto-GAS, the first training-free Generative Architecture Search (GAS) framework enabled by an auto-discovered proxy. Generative models like Generative Adversarial Networks (GANs) are now widely used in many real-time applications. Previous GAS methods use differentiable…

2024

Auto-Prox: Training-Free Vision Transformer Architecture Search via Automatic Proxy Discovery

AAAI 2024technical

The substantial success of Vision Transformer (ViT) in computer vision tasks is largely attributed to the architecture design. This underscores the necessity of efficient architecture search for designing better ViTs automatically. As training-based architecture search methods are computationally in…

2024

DetKDS: Knowledge Distillation Search for Object Detectors

ICML 2024poster

In this paper, we present DetKDS, the first framework that searches for optimal detection distillation policies. Manual design of detection distillers becomes challenging and time-consuming due to significant disparities in distillation behaviors between detectors with different backbones, paradigms…

2024

Discovering Sparsity Allocation for Layer-wise Pruning of Large Language Models

NeurIPS 2024poster

In this paper, we present DSA, the first automated framework for discovering sparsity allocation schemes for layer-wise pruning in Large Language Models (LLMs). LLMs have become increasingly powerful, but their large parameter counts make them computationally expensive. Existing pruning methods fo…

Cited by 10SourcePDFScholar
2024

LPZero: Language Model Zero-cost Proxy Search from Zero

EMNLP 2024finding

Despite the outstanding performance, Neural Architecture Search (NAS) is criticized for massive computation. Recently, Zero-shot NAS has emerged as a promising approach by exploiting Zero-cost (ZC) proxies, which markedly reduce computational demands. Despite this, existing ZC proxies heavily rely o…

Cited by 2SourcePDFScholar
2024

Pruner-Zero: Evolving Symbolic Pruning Metric From Scratch for Large Language Models

ICML 2024poster

Despite the remarkable capabilities, Large Language Models (LLMs) face deployment challenges due to their extensive size. Pruning methods drop a subset of weights to accelerate, but many of them require retraining, which is prohibitively expensive and computationally demanding. Recently, post-traini…

2024

SasWOT: Real-Time Semantic Segmentation Architecture Search WithOut Training

AAAI 2024technical

In this paper, we present SasWOT, the first training-free Semantic segmentation Architecture Search (SAS) framework via an auto-discovery proxy. Semantic segmentation is widely used in many real-time applications. For fast inference and memory efficiency, Previous SAS seeks the optimal segmenter by…

Cited by 24SourcePDFScholar
2024

UniADS: Universal Architecture-Distiller Search for Distillation Gap

AAAI 2024technical

In this paper, we present UniADS, the first Universal Architecture-Distiller Search framework for co-optimizing student architecture and distillation policies. Teacher-student distillation gap limits the distillation gains. Previous approaches seek to discover the ideal student architecture while ig…

Cited by 18SourcePDFScholar
2023

DMFormer: Closing the gap Between CNN and Vision Transformers

ICASSP 2023accepted

Vision transformers have shown excellent performance in computer vision tasks. As the computation cost of their self-attention mechanism is expensive, recent works tried to replace the self-attention mechanism in vision transformers with convolutional operations, which is more efficient with built-i…

Cited by 0SourceScholar
2023

EMQ: Evolving Training-free Proxies for Automated Mixed Precision Quantization

ICCV 2023poster

Mixed-Precision Quantization (MQ) can achieve a competitive accuracy-complexity trade-off for models. Conventional training-based search methods require time-consuming candidate training to search optimized per-layer bit-width configurations in MQ. Recently, some training-free approaches have presen…

Cited by 39PDFcodeScholar
2023

KD-Zero: Evolving Knowledge Distiller for Any Teacher-Student Pairs

NeurIPS 2023poster

Knowledge distillation (KD) has emerged as an effective technique for compressing models that can enhance the lightweight model. Conventional KD methods propose various designs to allow student model to imitate the teacher better. However, these handcrafted KD designs heavily rely on expert knowle…

Cited by 38SourcePDFScholar
2023

Progressive Meta-Pooling Learning for Lightweight Image Classification Model

ICASSP 2023accepted

Practical networks for edge devices adopt shallow depth and small convolutional kernels to save memory and computational cost, which leads to a restricted receptive field. Conventional efficient learning methods focus on lightweight convolution designs, ignoring the role of the receptive field in ne…

Cited by 0SourceScholar
2023

RD-NAS: Enhancing One-Shot Supernet Ranking Ability Via Ranking Distillation From Zero-Cost Proxies

ICASSP 2023accepted

Neural architecture search (NAS) has made tremendous progress in the automatic design of effective neural network structures but suffers from a heavy computational burden. One-shot NAS significantly alleviates the burden through weight sharing and improves computational efficiency. Zero-shot NAS fur…

Cited by 0SourceScholar
2022

Activation Modulation and Recalibration Scheme for Weakly Supervised Semantic Segmentation

AAAI 2022technical

Image-level weakly supervised semantic segmentation (WSSS) is a fundamental yet challenging computer vision task facilitating scene understanding and automatic driving. Most existing methods resort to classification-based Class Activation Maps (CAMs) to play as the initial pseudo labels, which tend…