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Zhanpeng Zeng

11 accepted papers

2026

Training-Free Hashing-Based Attention via Binary Principal Components

ICML 2026poster

Long-context large language models (LLMs) are increasingly deployed in real-world applications, yet self-attention remains a major efficiency bottleneck -- especially during decoding -- due to the necessity of repeatedly processing ever-growing key-value (KV) caches. Existing sparse attention reduce…

Cited by 0SourceScholar
2025

Accelerating Multimodal Large Language Models via Dynamic Visual-Token Exit and the Empirical Findings

NeurIPS 2025poster

In this paper, we study the visual redundancy problem of multimodal large language models (MLLMs) from the perspective of attention behaviors. Via extensive empirical experiments, we observe and conclude three main inference stages of MLLMs: (i) Early fusion between tokens is first accomplished qui…

Cited by 0SourcecodeScholar
2024

Alleviating Distortion in Image Generation via Multi-Resolution Diffusion Models and Time-Dependent Layer Normalization

NeurIPS 2024poster

This paper presents innovative enhancements to diffusion models by integrating a novel multi-resolution network and time-dependent layer normalization. Diffusion models have gained prominence for their effectiveness in high-fidelity image generation. While conventional approaches rely on convolution…

2024

FrameQuant: Flexible Low-Bit Quantization for Transformers

ICML 2024poster

Transformers are the backbone of powerful foundation models for many Vision and Natural Language Processing tasks. But their compute and memory/storage footprint is large, and so, serving such models is expensive often requiring high-end hardware. To mitigate this difficulty, Post-Training Quantizat…

2024

IM-Unpack: Training and Inference with Arbitrarily Low Precision Integers

ICML 2024poster

GEneral Matrix Multiply (GEMM) is a central operation in deep learning and corresponds to a large chunk of the compute footprint. Therefore, improving its efficiency is an active topic of research. A popular strategy is the use of low bit-width integers to approximate the original matrix entries. Th…

2023

Controlled Differential Equations on Long Sequences via Non-standard Wavelets

ICML 2023poster

Neural Controlled Differential equations (NCDE) are a powerful mechanism to model the dynamics in temporal sequences, e.g., applications involving physiological measures, where apart from the initial condition, the dynamics also depend on subsequent measures or even a different "control" sequence. B…

Cited by 2SourcePDFScholar
2023

LookupFFN: Making Transformers Compute-lite for CPU inference

ICML 2023poster

While GPU clusters are the de facto choice for training large deep neural network (DNN) models today, several reasons including ease of workflow, security and cost have led to efforts investigating whether CPUs may be viable for inference in routine use in many sectors of the industry. But the imbal…

2023

VCC: Scaling Transformers to 128K Tokens or More by Prioritizing Important Tokens

NeurIPS 2023poster

Transformers are central in modern natural language processing and computer vision applications. Despite recent works devoted to reducing the quadratic cost of such models with respect to sequence length, dealing with ultra long sequences (e.g., $>$16K tokens) remains challenging. Applications such…

2022

Multi Resolution Analysis (MRA) for Approximate Self-Attention

ICML 2022spotlight

Transformers have emerged as a preferred model for many tasks in natural langugage processing and vision. Recent efforts on training and deploying Transformers more efficiently have identified many strategies to approximate the self-attention matrix, a key module in a Transformer architecture. Effec…

2021

Nyströmformer: A Nyström-based Algorithm for Approximating Self-Attention

AAAI 2021technical

Transformers have emerged as a powerful tool for a broad range of natural language processing tasks. A key component that drives the impressive performance of Transformers is the self-attention mechanism that encodes the influence or dependence of other tokens on each specific token. While beneficia…

2021

You Only Sample (Almost) Once: Linear Cost Self-Attention Via Bernoulli Sampling

ICML 2021spotlight

Transformer-based models are widely used in natural language processing (NLP). Central to the transformer model is the self-attention mechanism, which captures the interactions of token pairs in the input sequences and depends quadratically on the sequence length. Training such models on longer sequ…