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Hanlin Tang

17 accepted papers

2026

RT-Lynx: Putting the GEMM Sparsity In a Right Way for Diffusion Models

ICML 2026poster

Diffusion Transformers (DiT) achieve strong performance in image generation but incur substantial inference costs. While prior work has reduced this cost via quantization and distillation, semi-structured sparsity—which can nearly halve FLOPs—remains underexplored. A key reason is that most existing…

Cited by 0SourceScholar
2025

RazorAttention: Efficient KV Cache Compression Through Retrieval Heads

ICLR 2025poster

The memory and computational demands of Key-Value (KV) cache present significant challenges for deploying long-context language models. Previous approaches attempt to mitigate this issue by selectively dropping tokens, which irreversibly erases critical information that might be needed for future qu…

Cited by 23SourcePDFScholar
2024

Span Graph Transformer for Document-Level Named Entity Recognition

AAAI 2024technical

Named Entity Recognition (NER), which aims to identify the span and category of entities within text, is a fundamental task in natural language processing. Recent NER approaches have featured pre-trained transformer-based models (e.g., BERT) as a crucial encoding component to achieve state-of-the…

Cited by 1SourcePDFScholar
2024

Span-based Unified Named Entity Recognition Framework via Contrastive Learning

IJCAI 2024poster

Traditional Named Entity Recognition (NER) models are typically designed for domain-specific datasets and limited to fixed predefined types, resulting in difficulty generalizing to new domains. Recently, prompt-based generative methods attempt to mitigate this constraint by training models jointly…

Cited by 1SourcePDFScholar
2023

EasyQuant: An Efficient Data-free Quantization Algorithm for LLMs

EMNLP 2023long main

Large language models (LLMs) have proven to be very superior to conventional methods in various tasks. However, their expensive computations and high memory requirements are prohibitive for deployment. Model quantization is an effective method for reducing this overhead. The problem is that in most…

Cited by 0SourceScholar
2021

1-bit Adam: Communication Efficient Large-Scale Training with Adam’s Convergence Speed

ICML 2021spotlight

Scalable training of large models (like BERT and GPT-3) requires careful optimization rooted in model design, architecture, and system capabilities. From a system standpoint, communication has become a major bottleneck, especially on commodity systems with standard TCP interconnects that offer limit…

2021

On the geometry of generalization and memorization in deep neural networks

ICLR 2021poster

Understanding how large neural networks avoid memorizing training data is key to explaining their high generalization performance. To examine the structure of when and where memorization occurs in a deep network, we use a recently developed replica-based mean field theoretic geometric analysis metho…

Cited by 87SourcePDFScholar
2021

Optimizing Memory Placement using Evolutionary Graph Reinforcement Learning

ICLR 2021poster

For deep neural network accelerators, memory movement is both energetically expensive and can bound computation. Therefore, optimal mapping of tensors to memory hierarchies is critical to performance. The growing complexity of neural networks calls for automated memory mapping instead of manual heur…

Cited by 14SourcePDFScholar
2020

Emergence of Separable Manifolds in Deep Language Representations

ICML 2020poster

Deep neural networks (DNNs) have shown much empirical success in solving perceptual tasks across various cognitive modalities. While they are only loosely inspired by the biological brain, recent studies report considerable similarities between representations extracted from task-optimized DNNs and…

2020

Shifted and Squeezed 8-bit Floating Point format for Low-Precision Training of Deep Neural Networks

ICLR 2020poster

Training with larger number of parameters while keeping fast iterations is an increasingly adopted strategy and trend for developing better performing Deep Neural Network (DNN) models. This necessitates increased memory footprint and computational requirements for training. Here we introduce a novel…

Cited by 63SourceScholar
2019

DoubleSqueeze: Parallel Stochastic Gradient Descent with Double-pass Error-Compensated Compression

ICML 2019oral

A standard approach in large scale machine learning is distributed stochastic gradient training, which requires the computation of aggregated stochastic gradients over multiple nodes on a network. Communication is a major bottleneck in such applications, and in recent years, compressed stochastic gr…

Cited by 289SourcePDFScholar
2019

SpaceNet MVOI: A Multi-View Overhead Imagery Dataset

ICCV 2019poster

Detection and segmentation of objects in overheard imagery is a challenging task. The variable density, random orientation, small size, and instance-to-instance heterogeneity of objects in overhead imagery calls for approaches distinct from existing models designed for natural scene datasets. Though…

Cited by 94PDFScholar
2019

Untangling in Invariant Speech Recognition

NeurIPS 2019poster

Encouraged by the success of deep convolutional neural networks on a variety of visual tasks, much theoretical and experimental work has been aimed at understanding and interpreting how vision networks operate. At the same time, deep neural networks have also achieved impressive performance in audi…