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Xupeng Miao

12 accepted papers

2026

DARTS: Distribution-Aware Active Rollout Trajectory Shaping for Accelerating LLM Reinforcement Learning

ICML 2026poster

Reinforcement Learning (RL) has become pivotal for improving model capabilities yet suffers from rollout efficiency bottlenecks due to the long-tail response length distribution. While existing works mitigate the impact of long tails via prompt-level tail scheduling, we focus on the root source of i…

Cited by 0SourceScholar
2026

EchoAttention: Exploiting Token-Pair Redundancy and Frame-Block Similarity for Efficient Long Video Generation

ICML 2026poster

Diffusion Transformers (DiTs) are increasingly adopted for long-video generation, yet inference is dominated by the quadratic cost of 3D full attention. Sparse attention mitigates this bottleneck by exploiting *token-pair redundancy* and pruning query-key interactions. Nevertheless, its effectivenes…

Cited by 0SourceScholar
2025

Demystifying Cost-Efficiency in LLM Serving over Heterogeneous GPUs

ICML 2025poster

Recent advancements in Large Language Models (LLMs) have led to increasingly diverse requests, accompanied with varying resource (compute and memory) demands to serve them. However, this in turn degrades the cost-efficiency of LLM serving as common practices primarily rely on homogeneous GPU resourc…

Cited by 4SourcePDFScholar
2025

NetMoE: Accelerating MoE Training through Dynamic Sample Placement

ICLR 2025spotlight

Mixture of Experts (MoE) is a widely used technique to expand model sizes for better model quality while maintaining the computation cost constant. In a nutshell, an MoE model consists of multiple experts in each model layer and routes the training tokens to only a fixed number of experts rather tha…

Cited by 1SourcePDFScholar
2024

Accelerating Text-to-Image Editing via Cache-Enabled Sparse Diffusion Inference

AAAI 2024technical

Due to the recent success of diffusion models, text-to-image generation is becoming increasingly popular and achieves a wide range of applications. Among them, text-to-image editing, or continuous text-to-image generation, attracts lots of attention and can potentially improve the quality of generat…

2024

LSH-MoE: Communication-efficient MoE Training via Locality-Sensitive Hashing

NeurIPS 2024poster

Larger transformer models perform better on various downstream tasks but require more cost to scale up the model size. To efficiently enlarge models, the Mixture-of-Expert (MoE) architecture is widely adopted, which consists of a gate network and a series of experts and keep the training cost consta…

Cited by 0SourcePDFScholar
2024

Quantized Side Tuning: Fast and Memory-Efficient Tuning of Quantized Large Language Models

ACL 2024long

Finetuning large language models (LLMs) has been empirically effective on a variety of downstream tasks. Existing approaches to finetuning an LLM either focus on parameter-efficient finetuning, which only updates a small number of trainable parameters, or attempt to reduce the memory footprint durin…

2024

X-former Elucidator: Reviving Efficient Attention for Long Context Language Modeling

IJCAI 2024poster

Transformer-based LLMs are becoming increasingly important in various AI applications. However, apart from the success of LLMs, the explosive demand of long context handling capabilities is a key and in-time problem for both academia and industry. Due to the limitations from the quadratic complexit…

Cited by 7SourcePDFScholar
2023

CALIP: Zero-Shot Enhancement of CLIP with Parameter-Free Attention

AAAI 2023technical

Contrastive Language-Image Pre-training (CLIP) has been shown to learn visual representations with promising zero-shot performance. To further improve its downstream accuracy, existing works propose additional learnable modules upon CLIP and fine-tune them by few-shot training sets. However, the res…

2023

Model-enhanced Vector Index

NeurIPS 2023poster

Embedding-based retrieval methods construct vector indices to search for document representations that are most similar to the query representations. They are widely used in document retrieval due to low latency and decent recall performance. Recent research indicates that deep retrieval solutions o…

2023

OSDP: Optimal Sharded Data Parallel for Distributed Deep Learning

IJCAI 2023poster

Large-scale deep learning models contribute to significant performance improvements on varieties of downstream tasks. Current data and model parallelism approaches utilize model replication and partition techniques to support the distributed training of ultra-large models. However, directly deployin…

2022

PointCLIP: Point Cloud Understanding by CLIP

CVPR 2022poster

Recently, zero-shot and few-shot learning via Contrastive Vision-Language Pre-training (CLIP) have shown inspirational performance on 2D visual recognition, which learns to match images with their corresponding texts in open-vocabulary settings. However, it remains under explored that whether CLIP,…

Cited by 524PDFcodeScholar