Search Results for author: Xun Wu

Found 12 papers, 5 papers with code

MH-MoE: Multi-Head Mixture-of-Experts

no code implementations25 Nov 2024 Shaohan Huang, Xun Wu, Shuming Ma, Furu Wei

Multi-Head Mixture-of-Experts (MH-MoE) demonstrates superior performance by using the multi-head mechanism to collectively attend to information from various representation spaces within different experts.

Textual Aesthetics in Large Language Models

1 code implementation5 Nov 2024 Lingjie Jiang, Shaohan Huang, Xun Wu, Furu Wei

Image aesthetics is a crucial metric in the field of image generation.

Image Generation

UncertaintyRAG: Span-Level Uncertainty Enhanced Long-Context Modeling for Retrieval-Augmented Generation

no code implementations3 Oct 2024 Zixuan Li, Jing Xiong, Fanghua Ye, Chuanyang Zheng, Xun Wu, Jianqiao Lu, Zhongwei Wan, Xiaodan Liang, Chengming Li, Zhenan Sun, Lingpeng Kong, Ngai Wong

We present UncertaintyRAG, a novel approach for long-context Retrieval-Augmented Generation (RAG) that utilizes Signal-to-Noise Ratio (SNR)-based span uncertainty to estimate similarity between text chunks.

Chunking Language Modeling +3

The Heterophilic Snowflake Hypothesis: Training and Empowering GNNs for Heterophilic Graphs

1 code implementation18 Jun 2024 Kun Wang, Guibin Zhang, Xinnan Zhang, Junfeng Fang, Xun Wu, Guohao Li, Shirui Pan, Wei Huang, Yuxuan Liang

Based on observations, we innovatively introduce the Heterophily Snowflake Hypothesis and provide an effective solution to guide and facilitate research on heterophilic graphs and beyond.

Node Classification

Enhancing Uncertain Demand Prediction in Hospitals Using Simple and Advanced Machine Learning

no code implementations29 Apr 2024 Annie Hu, Samuel Stockman, Xun Wu, Richard Wood, Bangdong Zhi, Oliver Y. Chén

Accurately predicting patient care demand, however, is a ubiquitous challenge for hospitals across the world due, in part, to the demand's time-varying temporal variability, and, in part, to the difficulty in modelling trends in advance.

Multi-Head Mixture-of-Experts

1 code implementation23 Apr 2024 Xun Wu, Shaohan Huang, Wenhui Wang, Furu Wei

These sub-tokens are then assigned to and processed by a diverse set of experts in parallel, and seamlessly reintegrated into the original token form.

Language Modeling Language Modelling

Multimodal Large Language Model is a Human-Aligned Annotator for Text-to-Image Generation

no code implementations23 Apr 2024 Xun Wu, Shaohan Huang, Furu Wei

Recent studies have demonstrated the exceptional potentials of leveraging human preference datasets to refine text-to-image generative models, enhancing the alignment between generated images and textual prompts.

Language Modeling Language Modelling +3

Mixture of LoRA Experts

1 code implementation21 Apr 2024 Xun Wu, Shaohan Huang, Furu Wei

LoRA has gained widespread acceptance in the fine-tuning of large pre-trained models to cater to a diverse array of downstream tasks, showcasing notable effectiveness and efficiency, thereby solidifying its position as one of the most prevalent fine-tuning techniques.

Investigating EEG-Based Functional Connectivity Patterns for Multimodal Emotion Recognition

no code implementations4 Apr 2020 Xun Wu, Wei-Long Zheng, Bao-liang Lu

The discrimination ability of the EEG connectivity features in emotion recognition is evaluated on three public emotion EEG datasets: SEED, SEED-V, and DEAP.

Brain Computer Interface Clustering +3

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