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Lili Qiu

27 accepted papers

2026

AVGen-Bench: A Task-Driven Benchmark for Multi-Granular Evaluation of Text-to-Audio-Video Generation

ICML 2026poster

Text-to-Audio-Video (T2AV) generation is rapidly becoming a core interface for media creation, yet its evaluation remains fragmented. Existing benchmarks largely assess audio and video in isolation or rely on coarse embedding similarity, failing to capture fine-grained joint correctness required by …

Cited by 7SourceScholar
2026

Beyond Hearing: Learning Task-agnostic ExG Representations from Earphones via Physiology-informed Tokenization

ICLR 2026poster

Electrophysiological (ExG) signals offer valuable insights into human physiology, yet building foundation models that generalize across everyday tasks remains challenging due to two key limitations: (i) insufficient data diversity, as most ExG recordings are collected in controlled labs with bulky,…

Cited by 0SourceScholar
2026

HiTVideo: Hierarchical Tokenizers for Enhancing Text-to-Video Generation with Autoregressive Large Language Models

AAAI 2026technical

Text-to-video generation poses significant challenges due to the inherent complexity of video data, which spans both temporal and spatial dimensions. It introduces additional redundancy, abrupt variations, and a domain gap between language and vision tokens while generation. Addressing these challen

Cited by 0SourcePDFScholar
2026

LLM2CLIP: Powerful Language Model Unlocks Richer Cross-Modality Representation

AAAI 2026technical

CLIP is a seminal multimodal model that maps images and text into a shared representation space by contrastive learning on billions of image–caption pairs. Inspired by the rapid progress of large language models (LLMs), we investigate how the superior linguistic understanding and broad world knowled

Cited by 0SourcePDFScholar
2026

OmniVLA: Physically-Grounded Multimodal VLA with Unified Multi-Sensor Perception for Robotic Manipulation

ICRA 2026poster

Vision-language-action (VLA) models have shown strong generalization in robotic manipulation through large-scale vision-language pretraining. However, most existing models rely solely on RGB cameras, limiting their perception and, consequently, manipulation capabilities. We present OmniVLA, an omni-…

2026

ProRe: A Proactive Reward System for GUI Agents via Reasoner–Actor Collaboration

ICLR 2026poster

Reward is critical to the evaluation and training of large language models (LLMs). However, existing rule-based or model-based reward methods struggle to generalize to GUI agents, where access to ground-truth trajectories or application databases is often unavailable, and static trajectory-based LLM…

Cited by 0SourcecodeScholar
2026

Region-Adaptive Sampling for Diffusion Transformers

CVPR 2026

Diffusion models (DMs) have become the state-of-the-art for generative tasks across domains, but their reliance on sequential forward passes limits real-time performance. Prior acceleration methods mainly reduce sampling steps or reuse intermediate results. Leveraging the flexibility of Diffusion Tr

Cited by 0SourcecodeScholar
2026

VidGuard-R1: AI-Generated Video Detection and Explanation via Reasoning MLLMs and RL

ICLR 2026poster

With the rapid advancement of AI-generated videos, there is an urgent need for effective detection tools to mitigate societal risks such as misinformation and reputational harm. In addition to accurate classification, it is essential that detection models provide interpretable explanations to ensure…

Cited by 0SourceScholar
2026

Video-in-the-Loop: Span-Grounded Long Video QA with Interleaved Reasoning

ICML 2026poster

We present $\textit{Video-in-the-Loop}$ (ViTL), a two-stage long-video QA framework that preserves a fixed token budget by first $\textit{localizing}$ question-relevant interval(s) with a low-fps skim and then $\textit{answering}$ via span-aware reallocation of visual tokens at higher effective fram…

Cited by 3SourceScholar
2025

Chain-of-Model Learning for Language Model

NeurIPS 2025poster

In this paper, we propose a novel learning paradigm, termed *Chain-of-Model* (CoM), which incorporates the causal relationship into the hidden states of each layer as a chain style. thereby introducing great scaling efficiency in model training and inference flexibility in deployment.We introduce th…

Cited by 0SourceScholar
2025

LeanK: Learnable K Cache Channel Pruning for Efficient Decoding

EMNLP 2025

Large language models (LLMs) enable long-context tasks but face efficiency challenges due to the growing key-value (KV) cache. We propose LeanK, a learning-based method that prunes unimportant key (K) cache channels by leveraging static channel sparsity. LeanK reduces GPU memory and accelerates deco

Cited by 0SourcePDFScholar
2025

MMInference: Accelerating Pre-filling for Long-Context Visual Language Models via Modality-Aware Permutation Sparse Attention

ICML 2025poster

The integration of long-context capabilities with visual understanding unlocks unprecedented potential for Vision Language Models (VLMs). However, the quadratic attention complexity during the pre-filling phase remains a significant obstacle to real-world deployment. To overcome this limitation, we…

Cited by 0SourcePDFScholar
2025

Mitigate Position Bias in LLMs via Scaling a Single Hidden States Channel

ACL 2025finding

Long-context language models (LCLMs) can process long context, but still exhibit position bias, also known as “lost in the middle”, which indicates placing key information in the middle of the context will significantly affect performance. To mitigating this, we first explore the micro-level manifes…

Cited by 0SourcePDFScholar
2025

RetrievalAttention: Accelerating Long-Context LLM Inference via Vector Retrieval

NeurIPS 2025poster

Transformer-based Large Language Models (LLMs) have become increasingly important. However, scaling LLMs to longer contexts incurs slow inference speed and high GPU memory consumption for caching key-value (KV) vectors. This paper presents RetrievalAttention, a training-free approach to both acceler…

Cited by 0SourcecodeScholar
2025

SCBench: A KV Cache-Centric Analysis of Long-Context Methods

ICLR 2025poster

Long-context Large Language Models (LLMs) have enabled numerous downstream applications but also introduced significant challenges related to computational and memory efficiency. To address these challenges, optimizations for long-context inference have been developed, centered around the KV cache.…

Cited by 8SourcePDFScholar
2025

SeCom: On Memory Construction and Retrieval for Personalized Conversational Agents

ICLR 2025poster

To deliver coherent and personalized experiences in long-term conversations, existing approaches typically perform retrieval augmented response generation by constructing memory banks from conversation history at either the turn-level, session-level, or through summarization techniques. In this pape…

Cited by 0SourcePDFScholar
2024

LLMLingua-2: Data Distillation for Efficient and Faithful Task-Agnostic Prompt Compression

ACL 2024findings

This paper focuses on task-agnostic prompt compression for better generalizability and efficiency. Considering the redundancy in natural language, existing approaches compress prompts by removing tokens or lexical units according to their information entropy obtained from a causal language model suc…

2024

LoRASC: Expressive and Generalizable Low-rank Adaptation for Large Models via Slow Cascaded Learning

EMNLP 2024finding

Efficient fine-tuning plays a fundamental role in modern large models, with low-rank adaptation emerging as a particularly promising approach. However, the existing variants of LoRA are hampered by limited expressiveness, a tendency to overfit, and sensitivity to hyperparameter settings. This paper…

2024

LongLLMLingua: Accelerating and Enhancing LLMs in Long Context Scenarios via Prompt Compression

ACL 2024long

In long context scenarios, large language models (LLMs) face three main challenges: higher computational cost, performance reduction, and position bias. Research indicates that LLM performance hinges on the density and position of key information in the input prompt. Inspired by these findings, we p…

2024

MInference 1.0: Accelerating Pre-filling for Long-Context LLMs via Dynamic Sparse Attention

NeurIPS 2024spotlight

The computational challenges of Large Language Model (LLM) inference remain a significant barrier to their widespread deployment, especially as prompt lengths continue to increase. Due to the quadratic complexity of the attention computation, it takes 30 minutes for an 8B LLM to process a prompt of…

2024

Position Engineering: Boosting Large Language Models through Positional Information Manipulation

EMNLP 2024main

The performance of large language models (LLMs) is significantly influenced by the quality of the prompts provided. In response, researchers have developed enormous prompt engineering strategies aimed at modifying the prompt text to enhance task performance. In this paper, we introduce a novel techn…

Cited by 4SourcePDFScholar
2024

Unified Medical Image Pre-training in Language-Guided Common Semantic Space

ECCV 2024poster

"Vision-Language Pre-training (VLP) has shown the merits of analysing medical images. It efficiently learns visual representations by leveraging supervisions in their corresponding reports, and in turn facilitates analysis and interpretation of intricate imaging data. However, such observation is pr…

Cited by 6SourcePDFScholar
2023

ImageBrush: Learning Visual In-Context Instructions for Exemplar-Based Image Manipulation

NeurIPS 2023poster

While language-guided image manipulation has made remarkable progress, the challenge of how to instruct the manipulation process faithfully reflecting human intentions persists. An accurate and comprehensive description of a manipulation task using natural language is laborious and sometimes even im…

Cited by 31SourcePDFScholar
2023

LLMLingua: Compressing Prompts for Accelerated Inference of Large Language Models

EMNLP 2023long main

Large language models (LLMs) have been applied in various applications due to their astonishing capabilities. With advancements in technologies such as chain-of-thought (CoT) prompting and in-context learning (ICL), the prompts fed to LLMs are becoming increasingly lengthy, even exceeding tens of th…

Cited by 0SourcecodeScholar
2023

Unsupervised Video Anomaly Detection For Stereotypical Behaviours in Autism

ICASSP 2023accepted

Monitoring and analyzing stereotypical behaviours is important for early intervention and care taking in Autism Spectrum Disorder (ASD). This paper focuses on automatically detecting stereotypical behaviours with computer vision techniques. Off-the-shelf methods tackle this task by supervised classi…

Cited by 0SourceScholar