← Search

zhenyu liu

16 accepted papers

2026

KaLM-Embedding-V2: Superior Training Techniques and Data Inspire A Versatile Embedding Model

ICLR 2026poster

Recent advancements in Large Language Models (LLMs)-based text embedding models primarily focus on data scaling or synthesis, yet limited exploration of training techniques and data quality, thereby constraining performance. In this work, we propose KaLM-Embedding-V2, a series of versatile and compa…

Cited by 0SourcecodeScholar
2026

U2-BENCH: Benchmarking Large Vision-Language Models on Ultrasound Understanding

ICLR 2026poster

Ultrasound is a widely-used imaging modality critical to global healthcare, yet its interpretation remains challenging due to its varying image quality on operators, noises, and anatomical structures. Although large vision-language models (LVLMs) have demonstrated impressive multimodal capabilities…

Cited by 0SourceScholar
2025

A Unified Analysis of Stochastic Gradient Descent with Arbitrary Data Permutations and Beyond

NeurIPS 2025poster

We aim to provide a unified convergence analysis for permutation-based Stochastic Gradient Descent (SGD), where data examples are permuted before each epoch. By examining the relations among permutations, we categorize existing permutation-based SGD algorithms into three categories: Arbitrary Permut…

Cited by 0SourceScholar
2025

FunnelRAG: A Coarse-to-Fine Progressive Retrieval Paradigm for RAG

NAACL 2025findings

Retrieval-Augmented Generation (RAG) prevails in Large Language Models. It mainly consists of retrieval and generation. The retrieval modules (a.k.a. retrievers) aim to find useful information used to facilitate the generation modules (a.k.a. generators). As such, generators’ performance largely dep…

2025

TAET: Two-Stage Adversarial Equalization Training on Long-Tailed Distributions

CVPR 2025poster

Adversarial robustness remains a significant challenge in deploying deep neural networks for real-world applications. While adversarial training is widely acknowledged as a promising defense strategy, most existing studies primarily focus on balanced datasets, neglecting the fact that real-world dat…

2024

An Asymptotically Achievable Rate Bound for Establishing High-Fidelity Entanglements in Quantum Networks

ICASSP 2024accepted

Entangled quantum states serve as important resources in quantum communication, quantum computing, and quantum sensing. Creating entangled states between remote nodes is referred to as remote entanglement establishment (REE). REE typically consists of three types of quantum operations: entanglement…

Cited by 0SourceScholar
2024

Improving Attributed Text Generation of Large Language Models via Preference Learning

ACL 2024findings

Large language models have been widely adopted in natural language processing, yet they face the challenge of generating unreliable content. Recent works aim to reduce misinformation and hallucinations by resorting to attribution as a means to provide evidence (i.e., citations). However, current att…

Cited by 9SourcePDFScholar
2024

In-Context Learning State Vector with Inner and Momentum Optimization

NeurIPS 2024poster

Large Language Models (LLMs) have exhibited an impressive ability to perform In-Context Learning (ICL) from only a few examples. Recent works have indicated that the functions learned by ICL can be represented through compressed vectors derived from the transformer. However, the working mechanisms a…

2024

Integrated Localization and Communication in 3GPP Industrial Environments

ICASSP 2024accepted

Integrated localization and communication (ILC) will be a key enabler for providing accurate location information and high data rate in next generation networks. This paper proposes a transmission frame structure and a soft information (SI)-based localization algorithm for position-assisted communic…

Cited by 0SourceScholar
2024

Medico: Towards Hallucination Detection and Correction with Multi-source Evidence Fusion

EMNLP 2024system demonstrations

As we all know, hallucinations prevail in Large Language Models (LLMs), where the generated content is coherent but factually incorrect, which inflicts a heavy blow on the widespread application of LLMs. Previous studies have shown that LLMs could confidently state non-existent facts rather than ans…

2024

Point Transformer with Federated Learning for Predicting Breast Cancer HER2 Status from Hematoxylin and Eosin-Stained Whole Slide Images

AAAI 2024technical

Directly predicting human epidermal growth factor receptor 2 (HER2) status from widely available hematoxylin and eosin (HE)-stained whole slide images (WSIs) can reduce technical costs and expedite treatment selection. Accurately predicting HER2 requires large collections of multi-site WSIs. Federat…

2024

Separate the Wheat from the Chaff: Model Deficiency Unlearning via Parameter-Efficient Module Operation

AAAI 2024technical

Large language models (LLMs) have been widely used in various applications but are known to suffer from issues related to untruthfulness and toxicity. While parameter-efficient modules (PEMs) have demonstrated their effectiveness in equipping models with new skills, leveraging PEMs for deficiency un…

2024

Take Off the Training Wheels! Progressive In-Context Learning for Effective Alignment

EMNLP 2024main

Recent studies have explored the working mechanisms of In-Context Learning (ICL). However, they mainly focus on classification and simple generation tasks, limiting their broader application to more complex generation tasks in practice. To address this gap, we investigate the impact of demonstration…

2023

One-for-All: Proposal Masked Cross-Class Anomaly Detection

AAAI 2023technical

One of the most challenges for anomaly detection (AD) is how to learn one unified and generalizable model to adapt to multi-class especially cross-class settings: the model is trained with normal samples from seen classes with the objective to detect anomalies from both seen and unseen classes. In t…

2023

PPAT: Progressive Graph Pairwise Attention Network for Event Causality Identification

IJCAI 2023poster

Event Causality Identification (ECI) aims to identify the causality between a pair of event mentions in a document, which is composed of sentence-level ECI (SECI) and document-level ECI (DECI). Previous work applies various reasoning models to identify the implicit event causality. However, they ind…

2021

Look Before You Leap: Safe Model-Based Reinforcement Learning with Human Intervention

CoRL 2021poster

Safety has become one of the main challenges of applying deep reinforcement learning to real world systems. Currently, the incorporation of external knowledge such as human oversight is the only means to prevent the agent from visiting the catastrophic state. In this paper, we propose MBHI, a novel…

Cited by 15SourceScholar