← Search

Liyuan Liu

20 accepted papers

2026

TinyVPR: Distilling Correct and Confusing Knowledge for Lightweight Visual Place Recognition

ICRA 2026poster

Visual Place Recognition (VPR) is a key technology in autonomous driving, robotics, and augmented reality, requiring efficient and robust localization in large-scale environments. However, most existing methods rely on heavy deep models that are computationally expensive and difficult to deploy on e…

Cited by 0Scholar
2025

Decoder-Hybrid-Decoder Architecture for Efficient Reasoning with Long Generation

NeurIPS 2025poster

Recent advances in language modeling have demonstrated the effectiveness of State Space Models (SSMs) for efficient sequence modeling. While hybrid architectures such as Samba and the decoder-decoder architecture, YOCO, have shown promising performance gains over Transformers, prior works have not i…

Cited by 0SourcecodeScholar
2025

Mixture of Inputs: Text Generation Beyond Discrete Token Sampling

NeurIPS 2025poster

In standard autoregressive generation, an LLM predicts the next-token distribution, samples a discrete token, and then discards the distribution, passing only the sampled token as new input. To preserve this distribution’s rich information, we propose Mixture of Inputs (MoI), a training-free method…

Cited by 0SourceScholar
2025

On the Generalization Ability of Next-Token-Prediction Pretraining

ICML 2025poster

Large language models (LLMs) have demonstrated remarkable potential in handling natural language processing (NLP) tasks and beyond. LLMs usually can be categorized as transformer decoder-only models (DOMs), utilizing Next-Token-Prediction (NTP) as their pre-training methodology. Despite their tremen…

Cited by 0SourcePDFScholar
2025

Reinforcement Learning for Reasoning in Large Language Models with One Training Example

NeurIPS 2025poster

We show that reinforcement learning with verifiable reward using one training example (1-shot RLVR) is effective in incentivizing the math reasoning capabilities of large language models (LLMs). Applying RLVR to the base model Qwen2.5-Math-1.5B, we identify a single example that elevates model perfo…

Cited by 0SourcecodeScholar
2025

Routing Mamba: Scaling State Space Models with Mixture-of-Experts Projection

NeurIPS 2025poster

State Space Models (SSMs) offer remarkable performance gains in efficient sequence modeling, with constant per-step inference-time computation and memory complexity. Recent advances, such as Mamba, further enhance SSMs with input-dependent gating and hardware-aware implementations, positioning them…

Cited by 0SourcecodeScholar
2025

Training Language Models to Generate Quality Code with Program Analysis Feedback

NeurIPS 2025poster

Code generation with large language models (LLMs), often termed vibe coding, is increasingly adopted in production but fails to ensure code quality, particularly in security (e.g., SQL injection vulnerabilities) and maintainability (e.g., missing type annotations). Existing methods, such as supervis…

Cited by 0SourcecodeScholar
2025

Trajectory-Dependent Generalization Bounds for Pairwise Learning with φ-mixing Samples

IJCAI 2025

Recently, the mathematical tool from fractal geometry (i.e., fractal dimension) has been employed to investigate optimization trajectory-dependent generalization ability for some pointwise learning models with independent and identically distributed (i.i.d.) observations. This paper goes beyond the

Cited by 0SourcePDFScholar
2025

Vector-ICL: In-context Learning with Continuous Vector Representations

ICLR 2025poster

Large language models (LLMs) have shown remarkable in-context learning (ICL) capabilities on textual data. We explore whether these capabilities can be extended to continuous vectors from diverse domains, obtained from black-box pretrained encoders. By aligning input data with an LLM's embedding spa…

2024

Fast-ELECTRA for Efficient Pre-training

ICLR 2024poster

ELECTRA pre-trains language models by detecting tokens in a sequence that have been replaced by an auxiliary model. Although ELECTRA offers a significant boost in efficiency, its potential is constrained by the training cost brought by the auxiliary model. Notably, this model, which is jointly train…

Cited by 1SourcePDFScholar
2024

Model Tells You What to Discard: Adaptive KV Cache Compression for LLMs

ICLR 2024oral

In this study, we introduce adaptive KV cache compression, a plug-and-play method that reduces the memory footprint of generative inference for Large Language Models (LLMs). Different from the conventional KV cache that retains key and value vectors for all context tokens, we conduct targeted profil…

2024

Tell Your Model Where to Attend: Post-hoc Attention Steering for LLMs

ICLR 2024poster

In human-written articles, we often leverage the subtleties of text style, such as bold and italics, to guide the attention of readers. These textual emphases are vital for the readers to grasp the conveyed information. When interacting with large language models (LLMs), we have a similar need -- s…

2024

Toward Student-oriented Teacher Network Training for Knowledge Distillation

ICLR 2024poster

How to conduct teacher training for knowledge distillation is still an open problem. It has been widely observed that a best-performing teacher does not necessarily yield the best-performing student, suggesting a fundamental discrepancy between the current teacher training practice and the ideal tea…

Cited by 7SourcePDFScholar
2023

Bridging Discrete and Backpropagation: Straight-Through and Beyond

NeurIPS 2023oral

Backpropagation, the cornerstone of deep learning, is limited to computing gradients for continuous variables. This limitation poses challenges for problems involving discrete latent variables. To address this issue, we propose a novel approach to approximate the gradient of parameters involved in g…

2023

Understand and Modularize Generator Optimization in ELECTRA-style Pretraining

ICML 2023poster

Despite the effectiveness of ELECTRA-style pre-training, their performance is dependent on the careful selection of the model size for the auxiliary generator, leading to high trial-and-error costs. In this paper, we present the first systematic study of this problem. Our theoretical investigation h…

Cited by 2SourcePDFScholar
2022

Label Noise in Adversarial Training: A Novel Perspective to Study Robust Overfitting

NeurIPS 2022accept

We show that label noise exists in adversarial training. Such label noise is due to the mismatch between the true label distribution of adversarial examples and the label inherited from clean examples – the true label distribution is distorted by the adversarial perturbation, but is neglected by the…

Cited by 26SourcePDFScholar
2021

Empower Distantly Supervised Relation Extraction with Collaborative Adversarial Training

AAAI 2021technical

With recent advances in distantly supervised (DS) relation extraction (RE), considerable attention is attracted to leverage multi-instance learning (MIL) to distill high-quality supervision from the noisy DS. Here, we go beyond label noise and identify the key bottleneck of DS-MIL to be its low data…

2021

On the Transformer Growth for Progressive BERT Training

NAACL 2021long

As the excessive pre-training cost arouses the need to improve efficiency, considerable efforts have been made to train BERT progressively–start from an inferior but low-cost model and gradually increase the computational complexity. Our objective is to help advance the understanding of such Transfo…

2020

On the Variance of the Adaptive Learning Rate and Beyond

ICLR 2020poster

The learning rate warmup heuristic achieves remarkable success in stabilizing training, accelerating convergence and improving generalization for adaptive stochastic optimization algorithms like RMSprop and Adam. Pursuing the theory behind warmup, we identify a problem of the adaptive learning rate…

Cited by 2552SourcecodeScholar
2020

Towards Adaptive Residual Network Training: A Neural-ODE Perspective

ICML 2020poster

In pursuit of resource-economical machine learning, attempts have been made to dynamically adjust computation workloads in different training stages, i.e., starting with a shallow network and gradually increasing the model depth (and computation workloads) during training. However, there is neither…