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Jungwook Choi

24 accepted papers

2026

BeaconKV: Key-Value Cache Compression Guided by Beacon Queries for Efficient Large Reasoning Model Inference

ICML 2026poster

Large Reasoning Models (LRMs) achieve superior problem-solving through extended chain-of-thought generation, but the resulting key-value (KV) cache grows linearly with sequence length and creates severe memory bottlenecks—often exceeding GPU capacity for long reasoning traces. Existing KV cache comp…

Cited by 0SourceScholar
2026

LFQ: Logit-aware Final-block Quantization for Boosting the Generation Quality of Low-Bit Quantized LLMs

ICML 2026poster

As large language models continue to scale, low-bit weight-only post-training quantization (PTQ) offers a practical solution to their memory-efficient deployment. Although block-wise PTQ is capable of matching the full-precision (FP) baseline on basic language modeling and understanding, its quality…

Cited by 0SourceScholar
2026

ReQAT: Achieving Full-Precision Reasoning Accuracy with 4-bit Floating-Point Quantization-Aware Training

ICML 2026oral

Large Reasoning Models (LRMs) achieve strong problem-solving through long chain-of-thought, but their deployment is constrained by the high cost of full-precision inference and growing KV cache footprints. Microscaled FP4 formats enable efficient FP4 deployment; however, fully quantizing weights, ac…

Cited by 1SourceScholar
2026

STAR-KV: Low-Rank KV Cache Compression via Soft Thresholding for Adaptive Rank Control

ICML 2026spotlight

Low-rank projection has emerged as a promising approach for compressing the KV cache by exploiting hidden-dimension redundancy. However, prior methods rely on fixed or heuristic rank selection and struggle to achieve aggressive compression with minimal accuracy degradation. We propose STAR-KV, an ad…

Cited by 0SourceScholar
2025

AMXFP4: Taming Activation Outliers with Asymmetric Microscaling Floating-Point for 4-bit LLM Inference

ACL 2025finding

As large language models (LLMs) grow in parameter size and context length, computation precision has been reduced from 16-bit to 4-bit to improve inference efficiency. However, this reduction causes accuracy degradation due to activation outliers. Rotation-based INT4 methods address this via matrix…

2025

InfiniPot-V: Memory-Constrained KV Cache Compression for Streaming Video Understanding

NeurIPS 2025poster

Modern multimodal large language models (MLLMs) can reason over hour-long video, yet their key–value (KV) cache grows linearly with time—quickly exceeding the fixed memory of phones, AR glasses, and edge robots. Prior compression schemes either assume the whole video and user query are available off…

Cited by 45SourceScholar
2025

RILQ: Rank-Insensitive LoRA-Based Quantization Error Compensation for Boosting 2-Bit Large Language Model Accuracy

AAAI 2025technical

Low-rank adaptation (LoRA) has become the dominant method for parameter-efficient LLM fine-tuning, with LoRA-based quantization error compensation (LQEC) emerging as a powerful tool for recovering accuracy in compressed LLMs. However, LQEC has underperformed in sub-4-bit scenarios, with no prior inv…

2025

Saliency-Aware Quantized Imitation Learning for Efficient Robotic Control

ICCV 2025poster

Deep neural network (DNN)-based policy models, such as vision-language-action (VLA) models, excel at automating complex decision-making from multi-modal inputs. However, scaling these models greatly increases computational overhead, complicating deployment in resource-constrained settings like robot…

Cited by 0SourcePDFScholar
2024

Improving Conversational Abilities of Quantized Large Language Models via Direct Preference Alignment

ACL 2024long

The rapid advancement of large language models (LLMs) has facilitated their transformation into conversational chatbots that can grasp contextual nuances and generate pertinent sentences, closely mirroring human values through advanced techniques such as instruction tuning and reinforcement learning…

Cited by 3SourcePDFScholar
2024

InfiniPot: Infinite Context Processing on Memory-Constrained LLMs

EMNLP 2024main

Handling long input contexts remains a significant challenge for Large Language Models (LLMs), particularly in resource-constrained environments such as mobile devices. Our work aims to address this limitation by introducing InfiniPot, a novel KV cache control framework designed to enable pre-traine…

2024

RA-LoRA: Rank-Adaptive Parameter-Efficient Fine-Tuning for Accurate 2-bit Quantized Large Language Models

ACL 2024findings

Deploying large language models (LLMs) with their extensive parameters and high memory demands challenges computational efficiency, particularly in fine-tuning for specific applications with limited resources. Techniques like Low-Rank Adaptation (LoRA) help by training a smaller, modifiable extensio…

2023

Enhancing Computation Efficiency in Large Language Models through Weight and Activation Quantization

EMNLP 2023long main

Large Language Models (LLMs) are proficient in natural language processing tasks, but their deployment is often restricted by extensive parameter sizes and computational demands. This paper focuses on post-training quantization (PTQ) in LLMs, specifically 4-bit weight and 8-bit activation (W4A8) qua…

Cited by 0SourceScholar
2023

Finding Optimal Numerical Format for Sub-8-Bit Post-Training Quantization of Vision Transformers

ICASSP 2023accepted

Vision Transformers (ViTs) have gained significant attention for their exceptional model accuracies on computer vision applications, but their demanding memory requirements and computational complexity have hindered active deployment. Post-training quantization (PTQ) is a practical method to tackle…

Cited by 0SourceScholar
2023

SiT Dataset: Socially Interactive Pedestrian Trajectory Dataset for Social Navigation Robots

NeurIPS 2023poster

To ensure secure and dependable mobility in environments shared by humans and robots, social navigation robots should possess the capability to accurately perceive and predict the trajectories of nearby pedestrians. In this paper, we present a novel dataset of pedestrian trajectories, referred to as…

2023

Token-Scaled Logit Distillation for Ternary Weight Generative Language Models

NeurIPS 2023poster

Generative Language Models (GLMs) have shown impressive performance in tasks such as text generation, understanding, and reasoning. However, the large model size poses challenges for practical deployment. To solve this problem, Quantization-Aware Training (QAT) has become increasingly popular. Howev…

2022

Understanding and Improving Knowledge Distillation for Quantization Aware Training of Large Transformer Encoders

EMNLP 2022main

Knowledge distillation (KD) has been a ubiquitous method for model compression to strengthen the capability of a lightweight model with the transferred knowledge from the teacher. In particular, KD has been employed in quantization-aware training (QAT) of Transformer encoders like BERT to improve th…

2022

Understanding the Role of Self Attention for Efficient Speech Recognition

ICLR 2022spotlight

Self-attention (SA) is a critical component of Transformer neural networks that have succeeded in automatic speech recognition (ASR). In this paper, we analyze the role of SA in Transformer-based ASR models for not only understanding the mechanism of improved recognition accuracy but also lowering t…

Cited by 60SourcePDFScholar
2021

Stochastic Precision Ensemble: Self-Knowledge Distillation for Quantized Deep Neural Networks

AAAI 2021technical

The quantization of deep neural networks (QDNNs) has been actively studied for deployment in edge devices. Recent studies employ the knowledge distillation (KD) method to improve the performance of quantized networks. In this study, we propose stochastic precision ensemble training for QDNNs (SPEQ).…

2019

Accumulation Bit-Width Scaling For Ultra-Low Precision Training Of Deep Networks

ICLR 2019poster

Efforts to reduce the numerical precision of computations in deep learning training have yielded systems that aggressively quantize weights and activations, yet employ wide high-precision accumulators for partial sums in inner-product operations to preserve the quality of convergence. The absence of…

Cited by 43SourcePDFScholar
2019

Hybrid 8-bit Floating Point (HFP8) Training and Inference for Deep Neural Networks

NeurIPS 2019poster

Reducing the numerical precision of data and computation is extremely effective in accelerating deep learning training workloads. Towards this end, 8-bit floating point representations (FP8) were recently proposed for DNN training. However, its applicability was demonstrated on a few selected models…

2019

Workload-aware Automatic Parallelization for Multi-GPU DNN Training

ICASSP 2019accepted

Deep neural networks (DNNs) have emerged as successful solutions for variety of artificial intelligence applications, but their very large and deep models impose high computational requirements during training. Multi-GPU parallelization is a popular option to accelerate demanding computations in DNN…

Cited by 0SourceScholar
2018

Training Deep Neural Networks with 8-bit Floating Point Numbers

NeurIPS 2018poster

The state-of-the-art hardware platforms for training deep neural networks are moving from traditional single precision (32-bit) computations towards 16 bits of precision - in large part due to the high energy efficiency and smaller bit storage associated with using reduced-precision representations.…

Cited by 672SourcePDFScholar
2018

True Gradient-Based Training of Deep Binary Activated Neural Networks Via Continuous Binarization

ICASSP 2018accepted

With the ever growing popularity of deep learning, the tremendous complexity of deep neural networks is becoming problematic when one considers inference on resource constrained platforms. Binary networks have emerged as a potential solution, however, they exhibit a fundamentallimi-tation in realizi…

Cited by 0SourceScholar
2016

Analysis of error resiliency of belief propagation in computer vision

ICASSP 2016accepted

Probabilistic inference is a versatile tool to solve a large variety of pixel-labeling problems in computer vision such as stereo matching and image denoising. Belief Propagation (BP) is an effective method for such inference tasks, and has also shown attractive error-resilience properties—the abili…

Cited by 0SourceScholar