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Yuxiong He

27 accepted papers

2026

Agent World Model: Infinity Synthetic Environments for Agentic Reinforcement Learning

ICML 2026poster

Recent advances in large language model (LLM) have empowered autonomous agents to perform complex tasks that require multi-turn interactions with external tools and environments. However, scaling such agent training is limited by the lack of diverse and reliable environments. In this paper, we propo…

Cited by 0SourceScholar
2026

DARE-bench: Evaluating Modeling and Instruction Fidelity of LLMs in Data Science

ICLR 2026poster

The fast-growing demands in using Large Language Models (LLMs) to tackle complex multi-step data science tasks create a emergent need for accurate benchmarking. There are two major gaps in existing benchmarks: (i) the lack of standardized, process-aware evaluation that captures instruction adherence…

Cited by 0SourcecodeScholar
2026

Fast and Accurate Causal Parallel Decoding using Jacobi Forcing

ICML 2026poster

Multi-token generation has emerged as a promising paradigm for accelerating language model inference, with the diffusion Large Language Models (dLLMs) as the most notable approach recently. Popular dLLMs like SDAR and Fast-dLLM v2 are post-trained on pre-trained AR models to minimize training cost w…

Cited by 0SourceScholar
2025

CORD: Balancing COnsistency and Rank Distillation for Robust Retrieval-Augmented Generation

NAACL 2025short

With the adoption of retrieval-augmented generation (RAG), large language models (LLMs) are expected to ground their generation to the retrieved contexts. Yet, this is hindered by position bias of LLMs, failing to evenly attend to all contexts. Previous work has addressed this by synthesizing contex…

2025

ConvCodeWorld: Benchmarking Conversational Code Generation in Reproducible Feedback Environments

ICLR 2025poster

Large language models (LLMs) have proven invaluable for code generation, particularly in interactive settings. However, existing code generation benchmarks fail to capture the diverse feedback encountered in multi-turn interactions, limiting our ability to evaluate LLMs in these contexts. To address…

Cited by 0SourcePDFScholar
2025

Inference Scaling for Bridging Retrieval and Augmented Generation

NAACL 2025findings

Retrieval-augmented generation (RAG) has emerged as a popular approach to steering the output of a large language model (LLM) by incorporating retrieved contexts as inputs. However, existing work observed the generator bias, such that improving the retrieval results may negatively affect the outcome…

2025

STUN: Structured-Then-Unstructured Pruning for Scalable MoE Pruning

ACL 2025long

Mixture-of-experts (MoEs) have been adopted for reducing inference costs by sparsely activating experts in large language models (LLMs). Despite these reductions, the massive number of parameters in MoEs still makes them expensive to serve. Conventionally, unstructured or structured pruning has been…

2025

SwiftKV: Fast Prefill-Optimized Inference with Knowledge-Preserving Model Transformation

EMNLP 2025

LLM inference for enterprise applications, such as summarization, RAG, and code-generation, typically observe much longer prompt than generations, leading to high prefill cost and response latency. We present SwiftKV, a novel model transformation and distillation procedure targeted at reducing the p

2024

DeepSpeed Data Efficiency: Improving Deep Learning Model Quality and Training Efficiency via Efficient Data Sampling and Routing

AAAI 2024technical

Recent advances on deep learning models come at the price of formidable training cost. The increasing model size is one of the root causes, but another less-emphasized fact is that data scale is actually increasing at a similar speed as model scale, and the training cost is proportional to both of t…

2024

Exploring Post-training Quantization in LLMs from Comprehensive Study to Low Rank Compensation

AAAI 2024technical

Post-training quantization (PTQ) has emerged as a promising technique for mitigating memory consumption and computational costs in large language models (LLMs). However, a systematic examination of various quantization schemes, model families, and quantization bit precision has been absent from the…

Cited by 25SourcePDFScholar
2024

ZeRO++: Extremely Efficient Collective Communication for Large Model Training

ICLR 2024poster

Zero Redundancy Optimizer (ZeRO) has been used to train a wide range of large language models on massive GPU clusters due to its ease of use, efficiency, and good scalability. However, when training on low-bandwidth clusters, and/or when small batch size per GPU is used, ZeRO’s effective throughput…

Cited by 9SourcePDFScholar
2023

DySR: Adaptive Super-Resolution via Algorithm and System Co-design

ICLR 2023poster

Super resolution (SR) is a promising approach for improving the quality of low resolution steaming services on mobile devices. On mobile devices, the available computing and memory resources change dynamically depending on other running applications. Due to the high computation and memory demands of…

Cited by 1SourcePDFScholar
2023

Maximizing Communication Efficiency for Large-scale Training via 0/1 Adam

ICLR 2023poster

1-bit gradient compression and local steps are two representative techniques that enable drastic communication reduction in distributed SGD. Their benefits, however, remain an open question on Adam-based large model pre-training (e.g. BERT and GPT). In this paper, we demonstrate the non-linearity in…

2023

Scaling Vision-Language Models with Sparse Mixture of Experts

EMNLP 2023long findings

The field of natural language processing (NLP) has made significant strides in recent years, particularly in the development of large-scale vision-language models (VLMs). These models aim to bridge the gap between text and visual information, enabling a more comprehensive understanding of multimedia…

Cited by 0SourceScholar
2023

Understanding Int4 Quantization for Language Models: Latency Speedup, Composability, and Failure Cases

ICML 2023poster

Improving the deployment efficiency of transformer-based language models has been challenging given their high computation and memory cost. While INT8 quantization has recently been shown to be effective in reducing both the memory cost and latency while preserving model accuracy, it remains unclear…

Cited by 51SourcePDFScholar
2022

Adversarial Data Augmentation for Task-Specific Knowledge Distillation of Pre-trained Transformers

AAAI 2022technical

Deep and large pre-trained language models (e.g., BERT, GPT-3) are state-of-the-art for various natural language processing tasks. However, the huge size of these models brings challenges to fine-tuning and online deployment due to latency and cost constraints. Existing knowledge distillation method…

Cited by 16SourcePDFScholar
2022

DeepSpeed-MoE: Advancing Mixture-of-Experts Inference and Training to Power Next-Generation AI Scale

ICML 2022spotlight

As the training of giant dense models hits the boundary on the availability and capability of the hardware resources today, Mixture-of-Experts (MoE) models have become one of the most promising model architectures due to their significant training cost reduction compared to quality-equivalent dense…

2022

The Stability-Efficiency Dilemma: Investigating Sequence Length Warmup for Training GPT Models

NeurIPS 2022accept

Recent works have demonstrated great success in pre-training large-scale autoregressive language models (e.g., GPT-3) on massive GPUs. To reduce the wall-clock training time, a common practice is to increase the batch size and learning rate. However, such practice is often brittle and leads to a so-…

2022

XTC: Extreme Compression for Pre-trained Transformers Made Simple and Efficient

NeurIPS 2022accept

Extreme compression, particularly ultra-low bit precision (binary/ternary) quantization, has been proposed to fit large NLP models on resource-constraint devices. However, to preserve the accuracy for such aggressive compression schemes, cutting-edge methods usually introduce complicated compressio…

Cited by 29SourcePDFScholar
2022

ZeroQuant: Efficient and Affordable Post-Training Quantization for Large-Scale Transformers

NeurIPS 2022accept

How to efficiently serve ever-larger trained natural language models in practice has become exceptionally challenging even for powerful cloud servers due to their prohibitive memory/computation requirements. In this work, we present an efficient and affordable post-training quantization approach to…

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

NxMTransformer: Semi-Structured Sparsification for Natural Language Understanding via ADMM

NeurIPS 2021poster

Natural Language Processing (NLP) has recently achieved great success by using huge pre-trained Transformer networks. However, these models often contain hundreds of millions or even billions of parameters, bringing challenges to online deployment due to latency constraints. Recently, hardware manuf…

Cited by 21SourcePDFScholar
2021

SimiGrad: Fine-Grained Adaptive Batching for Large Scale Training using Gradient Similarity Measurement

NeurIPS 2021poster

Large scale training requires massive parallelism to finish the training within a reasonable amount of time. To support massive parallelism, large batch training is the key enabler but often at the cost of generalization performance. Existing works explore adaptive batching or hand-tuned static larg…

2020

Accelerating Training of Transformer-Based Language Models with Progressive Layer Dropping

NeurIPS 2020poster

Recently, Transformer-based language models have demonstrated remarkable performance across many NLP domains. However, the unsupervised pre-training step of these models suffers from unbearable overall computational expenses. Current methods for accelerating the pre-training either rely on massive p…

Cited by 118SourcePDFScholar
2018

Learning Intrinsic Sparse Structures within Long Short-Term Memory

ICLR 2018poster

Model compression is significant for the wide adoption of Recurrent Neural Networks (RNNs) in both user devices possessing limited resources and business clusters requiring quick responses to large-scale service requests. This work aims to learn structurally-sparse Long Short-Term Memory (LSTM) by r…

Cited by 161SourcePDFScholar
2018

Navigating with Graph Representations for Fast and Scalable Decoding of Neural Language Models

NeurIPS 2018poster

Neural language models (NLMs) have recently gained a renewed interest by achieving state-of-the-art performance across many natural language processing (NLP) tasks. However, NLMs are very computationally demanding largely due to the computational cost of the decoding process, which consists of a sof…