← Search

Xiaoyu Shen

52 accepted papers

2026

Beyond Global Similarity: Multi-Conditional Retrieval for Fine-Grained Cross-Modal Understanding

CVPR 2026

Recent advances in multimodal large language models (MLLMs) have substantially expanded the capabilities of multimodal retrieval, enabling systems to align and retrieve information across visual and textual modalities. Yet, existing benchmarks largely focus on coarse-grained or single-condition alig

Cited by 0SourcecodeScholar
2026

Bridging the Stability-Expressivity Gap: Synthetic Data Scaling and Preference Alignment for Low-Resource Spoken Language Models

ICML 2026poster

Spoken Language Models (SLMs) revolutionize speech synthesis by bypassing traditional linguistic front-ends, yet they remain limited by the digital resource disparities across languages. We investigate these challenges within the Southeast Asian linguistic landscape, using the phonetically complex T…

Cited by 0SourceScholar
2026

Bring Future Vision: Dynamic Computation Allocation Guided by Lightweight Feature Forecaster

ICML 2026poster

The deployment of large language models (LLMs) in real-world applications is increasingly limited by their high inference cost. While recent advances in dynamic token-level computation allocation attempt to improve efficiency by selectively activating model components per token, existing methods rel…

Cited by 0SourceScholar
2026

From Parameters to Data: A Task-Parameter-Guided Fine-Tuning Pipeline for Efficient LLM Alignment

ICML 2026poster

Adapting Large Language Models (LLMs) to specialized domains typically incurs high data and computational overhead. While prior efficiency efforts have largely treated data selection and parameter-efficient fine-tuning as isolated processes, our empirical analysis suggests they may be intrinsically …

Cited by 0SourceScholar
2026

HiDivDrop: Vision Token Reduction in MLLMs via Late Injection and Differentiable Top-K

ICLR 2026poster

The computational cost of Multimodal Large Language Models (MLLMs), driven by the quadratic complexity of processing vision tokens, remains a significant barrier to their widespread adoption. While progressive vision token pruning is a promising solution, we find that its full potential has been unr…

Cited by 0SourcecodeScholar
2026

ProactiveLLM: Learning Active Interaction for Streaming Large Language Models

ICML 2026poster

Standard Large Language Models (LLMs) operate on a ''read-then-generate'' paradigm, incurring avoidable latency and computational redundancy. Recently, streaming LLMs have attempted to overcome these bottlenecks by allowing input and output to unfold synchronously. However, this introduces a critica…

Cited by 0SourceScholar
2026

Probing Cultural Awareness in LLMs: A Case Study of Cross-Culture Aesthetic Stylistics

IJCAI 2026

Large Language Models (LLMs) are increasingly deployed in diverse cultural contexts, yet their ability to master aesthetic stylistics, i.e., the strategic use of language to evoke cultural resonance, remains underexplored. We curate C4Styli, a benchmark of highly stylized translated movie titles and

Cited by 0Scholar
2026

Revealing Scaling Behavior in Large-scale Time Series Models: Implications for More Efficient and Accurate Forecasting

ICML 2026poster

Large-scale models are at the forefront of time series (TS) forecasting, dominated by two paradigms: fine-tuning text-based Large Language Models for TS (LLM4TS) and training Time Series Foundation Models (TSFMs) from scratch. Both approaches share a foundational assumption that scaling up model cap…

Cited by 0SourceScholar
2026

StreamingThinker: Large Language Models Can Think While Reading

ICLR 2026poster

Large language models (LLMs) have demonstrated remarkable capabilities in chain of thought (CoT) reasoning. However, the current LLM reasoning paradigm initiates thinking only after the entire input is available, which introduces unnecessary latency and weakens attention to earlier information in dy…

Cited by 0SourcecodeScholar
2026

The Overthinking Predicament: When Reasoning Hurts Ranking

ICLR 2026poster

Document reranking is a key component in information retrieval (IR), aimed at refining initial retrieval results to improve ranking quality for downstream tasks. Recent studies—motivated by large reasoning models (LRMs)—have begun incorporating explicit chain-of-thought (CoT) reasoning into LLM-base…

Cited by 0SourceScholar
2026

Think-as-You-See: Streaming Chain-of-Thought Reasoning for Large Vision-Language Models

CVPR 2026

Large Vision Language Models (LVLMs) have demonstrated remarkable capabilities in Chain-of-Thought (CoT) reasoning. However, existing LVLM reasoning paradigms only begin reasoning after the entire video becomes available, introducing unnecessary latency and diminishing attention to early visual cues

Cited by 0SourceScholar
2026

Tools are under-documented: Simple Document Expansion Boosts Tool Retrieval

ICLR 2026poster

Large Language Models (LLMs) have recently demonstrated strong capabilities in tool use, yet progress in tool retrieval remains hindered by incomplete and heterogeneous tool documentation. To address this challenge, we introduce Tool-DE, a new benchmark and framework that systematically enriches to…

Cited by 0SourcecodeScholar
2026

UTPTrack: Towards Simple and Unified Token Pruning for Visual Tracking

CVPR 2026

One-stream Transformer-based trackers achieve advanced performance in visual object tracking suffer from significant computational overhead that hinders real-time deployment. While token pruning offers a path to efficiency, a critical limitation persists: no existing work performs pruning jointly ac

Cited by 0SourcecodeScholar
2026

What Do Visual Tokens Really Encode? Uncovering Sparsity and Redundancy in Multimodal Large Language Models

CVPR 2026

Multimodal large language models (MLLMs) project visual tokens into the embedding space of language models, yet the internal structuring and processing of visual semantics remain poorly understood. In this work, we introduce a two-fold analytical framework featuring a novel probing tool, EmbedLens,

Cited by 0SourcecodeScholar
2026

What Makes Effective Supervision in Latent Chain-of-Thought: An Information-Theoretic Analysis

ICML 2026poster

Latent Chain-of-Thought (CoT) aims to internalize reasoning into continuous hidden states, promising to transcend the computational bottlenecks of explicit tokens. However, the precise mechanisms ensuring its validity remain opaque. To bridge this gap, we establish an Information-Theoretic Framework…

Cited by 0SourceScholar
2025

Auto-SLURP: A Benchmark Dataset for Evaluating Multi-Agent Frameworks in Smart Personal Assistant

EMNLP 2025

In recent years, multi-agent frameworks powered by large language models (LLMs) have advanced rapidly. Despite this progress, there is still a notable absence of benchmark datasets specifically tailored to evaluate their performance. To bridge this gap, we introduce Auto-SLURP, a benchmark dataset a

2025

Beyond Content Relevance: Evaluating Instruction Following in Retrieval Models

ICLR 2025poster

Instruction-following capabilities in large language models (LLMs) have progressed significantly, enabling more complex user interactions through detailed prompts. However, retrieval systems have not matched these advances, most of them still relies on traditional lexical and semantic matching techn…

2025

CHiP: Cross-modal Hierarchical Direct Preference Optimization for Multimodal LLMs

ICLR 2025poster

Multimodal Large Language Models (MLLMs) still struggle with hallucinations despite their impressive capabilities. Recent studies have attempted to mitigate this by applying Direct Preference Optimization (DPO) to multimodal scenarios using preference pairs from text-based responses. However, our an…

2025

Context Guided Transformer Entropy Modeling for Video Compression

ICCV 2025poster

Conditional entropy models effectively leverage spatio-temporal contexts to reduce video redundancy. However, incorporating temporal context often introduces additional model complexity and increases computational cost. In parallel, many existing spatial context models lack explicit modeling the ord…

2025

DRL-DCLP: A Deep Reinforcement Learning-Based Dimension-Configurable Local Planner for Robot Navigation

RA-L 2025

In this letter, we present a deep reinforcement learning-based dimension-configurable local planner (DRL-DCLP) for solving robot navigation problems. DRL-DCLP is the first neural-network local planner capable of handling rectangular differential-drive robots with varying dimension configurations wit

Cited by 9SourceScholar
2025

Enhancing Deep Reinforcement Learning-based Robot Navigation Generalization through Scenario Augmentation

IROS 2025

This work focuses on enhancing the generalization performance of deep reinforcement learning-based robot navigation in unseen environments. We present a novel data augmentation approach called scenario augmentation, which enables robots to navigate effectively across diverse settings without alterin

Cited by 1SourceScholar
2025

HAF-RM: A Hybrid Alignment Framework for Reward Model Training

ACL 2025long

The reward model has become increasingly important in alignment, assessment, and data construction for large language models (LLMs). Most existing researchers focus on enhancing reward models through data improvements, following the conventional training framework for reward models that directly opt…

2025

InternLM-Law: An Open-Sourced Chinese Legal Large Language Model

COLING 2025main

We introduce InternLM-Law, a large language model (LLM) tailored for addressing diverse legal tasks related to Chinese laws. These tasks range from responding to standard legal questions (e.g., legal exercises in textbooks) to analyzing complex real-world legal situations. Our work contributes to Ch…

2025

LLM as Effective Streaming Processor: Bridging Streaming-Batch Mismatches with Group Position Encoding

ACL 2025finding

Large Language Models (LLMs) are primarily designed for batch processing. Existing methods for adapting LLMs to streaming rely either on expensive re-encoding or specialized architectures with limited scalability. This work identifies three key mismatches in adapting batch-oriented LLMs to streaming…

2025

MAER-Nav: Bidirectional Motion Learning Through Mirror-Augmented Experience Replay for Robot Navigation

IROS 2025

Deep Reinforcement Learning (DRL) based navigation methods have demonstrated promising results for mobile robots, but suffer from limited action flexibility in confined spaces. Conventional DRL approaches predominantly learn forward-motion policies, causing robots to become trapped in complex enviro

Cited by 0SourceScholar
2025

Multi-Layer Visual Feature Fusion in Multimodal LLMs: Methods, Analysis, and Best Practices

CVPR 2025poster

Multimodal Large Language Models (MLLMs) have made significant advancements in recent years, with visual features playing an increasingly critical role in enhancing model performance. However, the integration of multi-layer visual features in MLLMs remains underexplored, particularly with regard to…

2025

MultiConIR: Towards Multi-Condition Information Retrieval

EMNLP 2025

Multi-condition information retrieval (IR) presents a significant, yet underexplored challenge for existing systems. This paper introduces MultiConIR, the first benchmark specifically designed to evaluate retrieval and reranking models under nuanced multi-condition query scenarios across five divers

2025

Multimodal Language Models See Better When They Look Shallower

EMNLP 2025

Multimodal large language models (MLLMs) typically extract visual features from the final layers of a pretrained Vision Transformer (ViT). This widespread deep-layer bias, however, is largely driven by empirical convention rather than principled analysis. While prior studies suggest that different V

2025

PricingLogic: Evaluating LLMs Reasoning on Complex Tourism Pricing Tasks

EMNLP 2025

We present PricingLogic, the first benchmarkthat probes whether Large Language Mod-els (LLMs) can reliably automate tourism-booking prices when multiple, overlapping farerules apply. Travel agencies are eager to of-fload this error-prone task to AI systems; how-ever, deploying LLMs without verified

2025

SkipGPT: Each Token is One of a Kind

ICML 2025poster

Large language models (LLMs) achieve remarkable performance across tasks but incur substantial computational costs due to their deep, multi-layered architectures. Layer pruning has emerged as a strategy to alleviate these inefficiencies, but conventional static pruning methods overlook two critical…

2025

Unveiling the Key Factors for Distilling Chain-of-Thought Reasoning

ACL 2025finding

Large Language Models (LLMs) excel in reasoning tasks through Chain-of-Thought (CoT) prompting. However, CoT prompting greatly increases computational demands, which has prompted growing interest in distilling CoT capabilities into Small Language Models (SLMs). This study systematically examines the…

2025

VisiPruner: Decoding Discontinuous Cross-Modal Dynamics for Efficient Multimodal LLMs

EMNLP 2025

Multimodal Large Language Models (MLLMs) have achieved strong performance across vision-language tasks, but suffer from significant computational overhead due to the quadratic growth of attention computations with the number of multimodal tokens. Though efforts have been made to prune tokens in MLLM

Cited by 0SourcePDFScholar
2024

A Preference-driven Paradigm for Enhanced Translation with Large Language Models

NAACL 2024long

Recent research has shown that large language models (LLMs) can achieve remarkable translation performance through supervised fine-tuning (SFT) using only a small amount of parallel data. However, SFT simply instructs the model to imitate the reference translations at the token level, making it vuln…

2024

Assessing “Implicit” Retrieval Robustness of Large Language Models

EMNLP 2024main

Retrieval-augmented generation has gained popularity as a framework to enhance large language models with external knowledge. However, its effectiveness hinges on the retrieval robustness of the model. If the model lacks retrieval robustness, its performance is constrained by the accuracy of the ret…

Cited by 0SourcePDFScholar
2024

Deeper Insights Without Updates: The Power of In-Context Learning Over Fine-Tuning

EMNLP 2024finding

Fine-tuning and in-context learning (ICL) are two prevalent methods in imbuing large language models with task-specific knowledge. It is commonly believed that fine-tuning can surpass ICL given sufficient training samples as it allows the model to adjust its internal parameters based on the data. Ho…

2024

Fine-Tuning Large Language Models to Translate: Will a Touch of Noisy Data in Misaligned Languages Suffice?

EMNLP 2024main

Traditionally, success in multilingual machine translation can be attributed to three key factors in training data: large volume, diverse translation directions, and high quality. In the current practice of fine-tuning large language models (LLMs) for translation, we revisit the importance of these…

2024

LawBench: Benchmarking Legal Knowledge of Large Language Models

EMNLP 2024main

We present LawBench, the first evaluation benchmark composed of 20 tasks aimed to assess the ability of Large Language Models (LLMs) to perform Chinese legal-related tasks. LawBench is meticulously crafted to enable precise assessment of LLMs’ legal capabilities from three cognitive levels that corr…

2024

StableMask: Refining Causal Masking in Decoder-only Transformer

ICML 2024poster

The decoder-only Transformer architecture with causal masking and relative position encoding (RPE) has become the de facto choice in language modeling. Despite its exceptional performance across various tasks, we have identified two limitations: First, it prevents all attended tokens from having zer…

Cited by 8SourcePDFScholar
2024

The Accuracy Paradox in RLHF: When Better Reward Models Don’t Yield Better Language Models

EMNLP 2024main

Reinforcement Learning from Human Feedback significantly enhances Natural Language Processing by aligning language models with human expectations. A critical factor in this alignment is the strength of reward models used during training. This study explores whether stronger reward models invariably…

2024

The Impact of Demonstrations on Multilingual In-Context Learning: A Multidimensional Analysis

ACL 2024findings

In-context learning is a popular inference strategy where large language models solve a task using only a few labeled demonstrations without needing any parameter updates. Although there have been extensive studies on English in-context learning, multilingual in-context learning remains under-explor…

2024

To Preserve or To Compress: An In-Depth Study of Connector Selection in Multimodal Large Language Models

EMNLP 2024main

In recent years, multimodal large language models (MLLMs) have attracted widespread attention from both industry and academia. Based on the integration position, MLLMs can be categorized into external and internal fusion architectures, with the former being more predominant. However, there remains c…

2024

Unveiling In-Context Learning: A Coordinate System to Understand Its Working Mechanism

EMNLP 2024main

Large language models (LLMs) exhibit remarkable in-context learning (ICL) capabilities. However, the underlying working mechanism of ICL remains poorly understood. Recent research presents two conflicting views on ICL: One emphasizes the impact of similar examples in the demonstrations, stressing th…

2023

Weaker Than You Think: A Critical Look at Weakly Supervised Learning

ACL 2023long

Weakly supervised learning is a popular approach for training machine learning models in low-resource settings. Instead of requesting high-quality yet costly human annotations, it allows training models with noisy annotations obtained from various weak sources. Recently, many sophisticated approache…

2023

xPQA: Cross-Lingual Product Question Answering in 12 Languages

ACL 2023industry

Product Question Answering (PQA) systems are key in e-commerce applications as they provide responses to customers’ questions as they shop for products. While existing work on PQA focuses mainly on English, in practice there is need to support multiple customer languages while leveraging product inf…

2022

A Few Thousand Translations Go a Long Way! Leveraging Pre-trained Models for African News Translation

NAACL 2022long

Recent advances in the pre-training for language models leverage large-scale datasets to create multilingual models. However, low-resource languages are mostly left out in these datasets. This is primarily because many widely spoken languages that are not well represented on the web and therefore ex…

2022

FocusQA: Open-Domain Question Answering with a Context in Focus

EMNLP 2022finding

We introduce question answering with a cotext in focus, a task that simulates a free interaction with a QA system. The user reads on a screen some information about a topic, and they can follow-up with questions that can be either related or not to the topic; and the answer can be found in the docum…

2022

Logical Fallacy Detection

EMNLP 2022finding

Reasoning is central to human intelligence. However, fallacious arguments are common, and some exacerbate problems such as spreading misinformation about climate change. In this paper, we propose the task of logical fallacy detection, and provide a new dataset (Logic) of logical fallacies generally…

2022

RoCBert: Robust Chinese Bert with Multimodal Contrastive Pretraining

ACL 2022long

Large-scale pretrained language models have achieved SOTA results on NLP tasks. However, they have been shown vulnerable to adversarial attacks especially for logographic languages like Chinese. In this work, we propose RoCBert: a pretrained Chinese Bert that is robust to various forms of adversaria…

2021

On Training Instance Selection for Few-Shot Neural Text Generation

ACL 2021short

Large-scale pretrained language models have led to dramatic improvements in text generation. Impressive performance can be achieved by finetuning only on a small number of instances (few-shot setting). Nonetheless, almost all previous work simply applies random sampling to select the few-shot traini…

Cited by 40SourcePDFScholar
2021

Preventing Author Profiling through Zero-Shot Multilingual Back-Translation

EMNLP 2021main

Documents as short as a single sentence may inadvertently reveal sensitive information about their authors, including e.g. their gender or ethnicity. Style transfer is an effective way of transforming texts in order to remove any information that enables author profiling. However, for a number of cu…

2020

DART: A Lightweight Quality-Suggestive Data-to-Text Annotation Tool

COLING 2020system demonstrations

We present a lightweight annotation tool, the Data AnnotatoR Tool (DART), for the general task of labeling structured data with textual descriptions. The tool is implemented as an interactive application that reduces human efforts in annotating large quantities of structured data, e.g. in the format…

Cited by 19SourcePDFScholar
2020

Data Augmentation for Multiclass Utterance Classification – A Systematic Study

COLING 2020main

Utterance classification is a key component in many conversational systems. However, classifying real-world user utterances is challenging, as people may express their ideas and thoughts in manifold ways, and the amount of training data for some categories may be fairly limited, resulting in imbalan…

Cited by 23SourcePDFScholar