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Jiahao Liu

33 accepted papers

2026

AeroGS: Scale-Aware Gaussian Splatting for Pose-Free Dynamic UAV Scene Reconstruction

CVPR 2026

Monocular UAV videos pose a fundamental challenge for 3D reconstruction: dynamic scene modeling requires accurate camera poses, yet recovering poses from long UAV trajectories often fails in texture-sparse regions and in the presence of moving objects. Existing approaches typically handle either pos

Cited by 0SourceScholar
2026

RepSpec: Structural Re-parameterized Draft Model Training for Speculative Decoding

ICLR 2026poster

As the parameter size of large language models (LLMs) continues to grow, the latency of autoregressive inference increases due to memory-bound computational inefficiency. To address this, speculative decoding has been proposed, where a large target model verifies multiple tokens generated in paralle…

Cited by 0SourcecodeScholar
2025

Dynamic Fisher-weighted Model Merging via Bayesian Optimization

NAACL 2025long

The fine-tuning of pre-trained language models has resulted in the widespread availability of task-specific models. Model merging offers an efficient way to create multi-task models by combining these fine-tuned models at the parameter level, without the need for training data or joint training on m…

Cited by 0SourcePDFScholar
2025

Efficient Inter-Operator Scheduling for Concurrent Recommendation Model Inference on GPU

IJCAI 2025

Deep learning-based recommendation systems are increasingly important in the industry. To meet strict SLA requirements, serving frameworks must efficiently handle concurrent queries. However, current serving systems fail to serve concurrent queries due to the following problems: (1) inefficient oper

2025

IIET: Efficient Numerical Transformer via Implicit Iterative Euler Method

EMNLP 2025

High-order numerical methods enhance Transformer performance in tasks like NLP and CV, but introduce a performance-efficiency trade-off due to increased computational overhead. Our analysis reveals that conventional efficiency techniques, such as distillation, can be detrimental to the performance o

2025

LS-TGNN: Long and Short-Term Temporal Graph Neural Network for Session-Based Recommendation

AAAI 2025technical

Session-Based Recommendation (SBR) based on Graph Neural Networks (GNN) has become a new paradigm for recommender systems, and plays a fundamental role in e-commerce and other relevant domains. Existing graph aggregation methods primarily form node representations by capturing basic relationships be…

Cited by 0SourcePDFScholar
2025

Probabilistic Token Alignment for Large Language Model Fusion

NeurIPS 2025poster

Training large language models (LLMs) from scratch can yield models with unique functionalities and strengths, but it is costly and often leads to redundant capabilities. A more cost-effective alternative is to fuse existing pre-trained LLMs with different architectures into a more powerful model. H…

Cited by 0SourceScholar
2025

PsyScam: A Benchmark for Psychological Techniques in Real-World Scams

EMNLP 2025

Over the years, online scams have grown dramatically,with nearly 50% of global consumersencountering scam attempts each week.These scams cause not only significant financiallosses to individuals and businesses, butalso lasting psychological trauma, largely dueto scammers’ strategic employment of psy

2025

ReMamba: Equip Mamba with Effective Long-Sequence Modeling

EMNLP 2025

While the Mamba architecture demonstrates superior inference efficiency and competitive performance on short-context natural language processing (NLP) tasks, empirical evidence suggests its capacity to comprehend long contexts is limited compared to transformer-based models. In this study, we invest

2025

TCPO: Thought-Centric Preference Optimization for Effective Embodied Decision-making

EMNLP 2025

Using effective generalization capabilities of vision language models (VLMs) in context-specific dynamic tasks for embodied artificial intelligence remains a significant challenge. Although supervised fine-tuned models can better align with the real physical world, they still exhibit sluggish respon

Cited by 0SourcePDFScholar
2024

C-ICL: Contrastive In-context Learning for Information Extraction

EMNLP 2024finding

There has been increasing interest in exploring the capabilities of advanced large language models (LLMs) in the field of information extraction (IE), specifically focusing on tasks related to named entity recognition (NER) and relation extraction (RE). Although researchers are exploring the use of…

Cited by 19SourcePDFScholar
2024

EAVE: Efficient Product Attribute Value Extraction via Lightweight Sparse-layer Interaction

EMNLP 2024finding

Product attribute value extraction involves identifying the specific values associated with various attributes from a product profile. While existing methods often prioritize the development of effective models to improve extraction performance, there has been limited emphasis on extraction efficien…

Cited by 1SourcePDFScholar
2024

FedLMT: Tackling System Heterogeneity of Federated Learning via Low-Rank Model Training with Theoretical Guarantees

ICML 2024poster

Federated learning (FL) is an emerging machine learning paradigm for preserving data privacy. However, diverse client hardware often has varying computation resources. Such system heterogeneity limits the participation of resource-constrained clients in FL, and hence degrades the global model accura…

Cited by 2SourcePDFScholar
2024

Graph-Structured Speculative Decoding

ACL 2024findings

Speculative decoding has emerged as a promising technique to accelerate the inference of Large Language Models (LLMs) by employing a small language model to draft a hypothesis sequence, which is then validated by the LLM. The effectiveness of this approach heavily relies on the balance between perfo…

2024

M2PT: Multimodal Prompt Tuning for Zero-shot Instruction Learning

EMNLP 2024main

Multimodal Large Language Models (MLLMs) demonstrate remarkable performance across a wide range of domains, with increasing emphasis on enhancing their zero-shot generalization capabilities for unseen tasks across various modalities. Instruction tuning has emerged as an effective strategy for achiev…

2024

MCL-NER: Cross-Lingual Named Entity Recognition via Multi-View Contrastive Learning

AAAI 2024technical

Cross-lingual named entity recognition (CrossNER) faces challenges stemming from uneven performance due to the scarcity of multilingual corpora, especially for non-English data. While prior efforts mainly focus on data-driven transfer methods, a significant aspect that has not been fully explored is…

Cited by 18SourcePDFScholar
2024

Predictor-Corrector Enhanced Transformers with Exponential Moving Average Coefficient Learning

NeurIPS 2024poster

Residual networks, as discrete approximations of Ordinary Differential Equations (ODEs), have inspired significant advancements in neural network design, including multistep methods, high-order methods, and multi-particle dynamical systems. The precision of the solution to ODEs significantly affects…

Cited by 2SourcePDFScholar
2024

Speculative Decoding via Early-exiting for Faster LLM Inference with Thompson Sampling Control Mechanism

ACL 2024findings

The recent advancements in large language models (LLMs) have been extraordinary, yet the escalating inference costs associated with them present challenges in real-world applications. To address these challenges, we propose a novel approach called Early-exiting Speculative Decoding (EESD) with lossl…

Cited by 7SourcePDFScholar
2024

Unleashing Region Understanding in Intermediate Layers for MLLM-based Referring Expression Generation

NeurIPS 2024poster

The Multi-modal Large Language Model (MLLM) based Referring Expression Generation (REG) task has gained increasing popularity, which aims to generate an unambiguous text description that applies to exactly one object or region in the image by leveraging foundation models. We empirically found that t…

2024

What Makes Quantization for Large Language Model Hard? An Empirical Study from the Lens of Perturbation

AAAI 2024technical

Quantization has emerged as a promising technique for improving the memory and computational efficiency of large language models (LLMs). Though the trade-off between performance and efficiency is well-known, there is still much to be learned about the relationship between quantization and LLM perfor…

Cited by 14SourcePDFScholar
2023

FedDWA: Personalized Federated Learning with Dynamic Weight Adjustment

IJCAI 2023poster

Different from conventional federated learning, personalized federated learning (PFL) is able to train a customized model for each individual client according to its unique requirement. The mainstream approach is to adopt a kind of weighted aggregation method to generate personalized models, in whic…

2023

Improving Input-label Mapping with Demonstration Replay for In-context Learning

EMNLP 2023long findings

In-context learning (ICL) is an emerging capability of large autoregressive language models where a few input-label demonstrations are appended to the input to enhance the model's understanding of downstream NLP tasks, without directly adjusting the model parameters. The effectiveness of ICL can be…

Cited by 0SourceScholar
2023

Lifting the Curse of Capacity Gap in Distilling Language Models

ACL 2023long

Pretrained language models (LMs) have shown compelling performance on various downstream tasks, but unfortunately they require a tremendous amount of inference compute. Knowledge distillation finds a path to compress LMs to small ones with a teacher-student paradigm. However, when the capacity gap b…

2023

Multi-Task Transformer with Relation-Attention and Type-Attention for Named Entity Recognition

ICASSP 2023accepted

Named entity recognition (NER) is an important research problem in natural language processing. There are three types of NER tasks, including flat, nested and discontinuous entity recognition. Most previous sequential labeling models are task-specific, while recent years have witnessed the rising of…

Cited by 0SourceScholar
2023

NC-WAMKD: Neighborhood Correction Weight-Adaptive Multi-Teacher Knowledge Distillation for Graph-Based Semi-Supervised Node Classification

ICASSP 2023accepted

Multi-teacher knowledge distillation can improve the performance of student networks in semi-supervised node classification tasks, but existing works ignore the importance of different teachers, using average of multiple teachers as final prediction. In addition, they rely on a large amount of label…

Cited by 0SourceScholar
2023

PreQuant: A Task-agnostic Quantization Approach for Pre-trained Language Models

ACL 2023findings

While transformer-based pre-trained language models (PLMs) have dominated a number of NLP applications, these models are heavy to deploy and expensive to use. Therefore, effectively compressing large-scale PLMs becomes an increasingly important problem. Quantization, which represents high-precision…

Cited by 8SourcePDFScholar
2023

RankCSE: Unsupervised Sentence Representations Learning via Learning to Rank

ACL 2023long

Unsupervised sentence representation learning is one of the fundamental problems in natural language processing with various downstream applications. Recently, contrastive learning has been widely adopted which derives high-quality sentence representations by pulling similar semantics closer and pus…

2023

Retrieval-based Knowledge Transfer: An Effective Approach for Extreme Large Language Model Compression

EMNLP 2023long findings

Large-scale pre-trained language models (LLMs) have demonstrated exceptional performance in various natural language processing (NLP) tasks. However, the massive size of these models poses huge challenges for their deployment in real-world applications. While numerous model compression techniques ha…

Cited by 0SourceScholar
2022

GNN-encoder: Learning a Dual-encoder Architecture via Graph Neural Networks for Dense Passage Retrieval

EMNLP 2022finding

Recently, retrieval models based on dense representations are dominant in passage retrieval tasks, due to their outstanding ability in terms of capturing semantics of input text compared to the traditional sparse vector space models. A common practice of dense retrieval models is to exploit a dual-e…

Cited by 4SourcePDFScholar
2022

Parameter-free Dynamic Graph Embedding for Link Prediction

NeurIPS 2022accept

Dynamic interaction graphs have been widely adopted to model the evolution of user-item interactions over time. There are two crucial factors when modelling user preferences for link prediction in dynamic interaction graphs: 1) collaborative relationship among users and 2) user personalized interact…

2022

VIRT: Improving Representation-based Text Matching via Virtual Interaction

EMNLP 2022main

Text matching is a fundamental research problem in natural language understanding. Interaction-based approaches treat the text pair as a single sequence and encode it through cross encoders, while representation-based models encode the text pair independently with siamese or dual encoders. Interacti…

Cited by 8SourcePDFScholar
2021

VECO: Variable and Flexible Cross-lingual Pre-training for Language Understanding and Generation

ACL 2021long

Existing work in multilingual pretraining has demonstrated the potential of cross-lingual transferability by training a unified Transformer encoder for multiple languages. However, much of this work only relies on the shared vocabulary and bilingual contexts to encourage the correlation across langu…

2019

Multi-task Adaptive Matching Pursuit for Sparse Signal Recovery Exploiting Signal Structures

ICASSP 2019accepted

Multi-task compressive sensing is a framework that, by leveraging the useful information contained in multiple tasks, significantly reduces the number of measurements required for sparse signal recovery and achieves improved sparse reconstruction performance of all tasks. In this paper, a novel mult…

Cited by 0SourceScholar