Search Results for author: Yifei Sun

Found 44 papers, 15 papers with code

Leveraging Seq2seq Language Generation for Multi-level Product Issue Identification

no code implementations ECNLP (ACL) 2022 Yang Liu, Varnith Chordia, Hua Li, Siavash Fazeli Dehkordy, Yifei Sun, Vincent Gao, Na Zhang

To harness such information to better serve customers, in this paper, we created a machine learning approach to automatically identify product issues and uncover root causes from the customer feedback text.

Multi-Label Classification MUlTI-LABEL-ClASSIFICATION +2

Multi-Physics Simulations via Coupled Fourier Neural Operator

no code implementations28 Jan 2025 Shibo Li, Tao Wang, Yifei Sun, Hewei Tang

To overcome these challenges, we introduce a novel coupled multi-physics neural operator learning (COMPOL) framework that extends the capabilities of Fourier operator layers to model interactions among multiple physical processes.

Operator learning Physical Simulations

ITCFN: Incomplete Triple-Modal Co-Attention Fusion Network for Mild Cognitive Impairment Conversion Prediction

1 code implementation20 Jan 2025 Xiangyang Hu, Xiangyu Shen, Yifei Sun, Xuhao Shan, Wenwen Min, Liyilei Su, Xiaomao Fan, Ahmed Elazab, Ruiquan Ge, Changmiao Wang, Xiaopeng Fan

To address these challenges, we propose an innovative multimodal approach for predicting MCI conversion, focusing specifically on the issues of missing positron emission tomography (PET) data and integrating diverse medical information.

Neural Reflectance Fields for Radio-Frequency Ray Tracing

no code implementations5 Jan 2025 Haifeng Jia, Xinyi Chen, Yichen Wei, Yifei Sun, Yibo Pi

We achieve this by translating the neural reflectance field from optics to RF domain by modelling both the amplitude and phase of RF signals to account for the multipath effects.

An Experimental Study of Passive UAV Tracking with Digital Arrays and Cellular Downlink Signals

no code implementations30 Dec 2024 Yifei Sun, Chao Yu, Yan Luo, Tony Xiao Han, Haisheng Tan, Rui Wang, Francis C. M. Lau

Given the prospects of the low-altitude economy (LAE) and the popularity of unmanned aerial vehicles (UAVs), there are increasing demands on monitoring flying objects at low altitude in wide urban areas.

Predicting Human Brain States with Transformer

1 code implementation11 Dec 2024 Yifei Sun, Mariano Cabezas, JiAh Lee, Chenyu Wang, Wei zhang, Fernando Calamante, Jinglei Lv

The human brain is a complex and highly dynamic system, and our current knowledge of its functional mechanism is still very limited.

Language Modelling Music Generation

Receiver-Centric Generative Semantic Communications

no code implementations5 Nov 2024 Xunze Liu, Yifei Sun, Zhaorui Wang, Lizhao You, Haoyuan Pan, Fangxin Wang, Shuguang Cui

To solve this problem, this paper presents a receiver-centric generative semantic communication system, where each transmission is initialized by the receiver.

Semantic Communication

Robots Pre-train Robots: Manipulation-Centric Robotic Representation from Large-Scale Robot Datasets

no code implementations29 Oct 2024 Guangqi Jiang, Yifei Sun, Tao Huang, Huanyu Li, Yongyuan Liang, Huazhe Xu

Drawing from these findings, we propose Manipulation Centric Representation (MCR), a foundation representation learning framework capturing both visual features and the dynamics information such as actions and proprioceptions of manipulation tasks to improve manipulation centricity.

Representation Learning

ED-ViT: Splitting Vision Transformer for Distributed Inference on Edge Devices

no code implementations15 Oct 2024 Xiang Liu, Yijun Song, Xia Li, Yifei Sun, Huiying Lan, Zemin Liu, Linshan Jiang, Jialin Li

We conduct extensive experiments on five datasets with three model structures, demonstrating that our approach significantly reduces inference latency on edge devices and achieves a model size reduction of up to 28. 9 times and 34. 1 times, respectively, while maintaining test accuracy comparable to the original Vision Transformer.

GeoTransformer: Enhancing Urban Forecasting with Dependency Retrieval and Geospatial Attention

no code implementations16 Aug 2024 Yuhao Jia, Zile Wu, Shengao Yi, Yifei Sun

Recent advances in urban forecasting have leveraged high-dimensional spatial data through two primary approaches: graph-based methods that rely on predefined spatial structures and region-based methods that use satellite imagery for local features.

Demand Forecasting Retrieval

TC-KANRecon: High-Quality and Accelerated MRI Reconstruction via Adaptive KAN Mechanisms and Intelligent Feature Scaling

1 code implementation11 Aug 2024 Ruiquan Ge, Xiao Yu, Yifei Chen, Guanyu Zhou, Fan Jia, Shenghao Zhu, Junhao Jia, Chenyan Zhang, Yifei Sun, Dong Zeng, Changmiao Wang, Qiegen Liu, Shanzhou Niu

Moreover, the dynamic clipping strategy in TC-KANRecon adjusts the cropping interval according to the sampling steps, thereby mitigating image detail loss typicalching the visual features of the images.

Image Denoising MRI Reconstruction

Chromosomal Structural Abnormality Diagnosis by Homologous Similarity

no code implementations11 Jul 2024 Juren Li, Fanzhe Fu, Ran Wei, Yifei Sun, Zeyu Lai, Ning Song, Xin Chen, Yang Yang

Pathogenic chromosome abnormalities are very common among the general population.

Exploring Correlations of Self-Supervised Tasks for Graphs

1 code implementation7 May 2024 Taoran Fang, Wei Zhou, Yifei Sun, Kaiqiao Han, Lvbin Ma, Yang Yang

Specifically, we evaluate the performance of the representations trained by one specific task on other tasks and define correlation values to quantify task correlations.

Multi-Task Learning Self-Supervised Learning

System and Method to Determine ME/CFS and Long COVID Disease Severity Using a Wearable Sensor

no code implementations5 Apr 2024 Yifei Sun, Suzanne D. Vernon, Shad Roundy

Objective: We present a simple parameter, calculated from a single wearable sensor, that can be used to objectively measure disease severity in people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) or Long COVID.

G-Retriever: Retrieval-Augmented Generation for Textual Graph Understanding and Question Answering

1 code implementation12 Feb 2024 Xiaoxin He, Yijun Tian, Yifei Sun, Nitesh V. Chawla, Thomas Laurent, Yann Lecun, Xavier Bresson, Bryan Hooi

Given a graph with textual attributes, we enable users to `chat with their graph': that is, to ask questions about the graph using a conversational interface.

Common Sense Reasoning Graph Classification +5

Accurate Leukocyte Detection Based on Deformable-DETR and Multi-Level Feature Fusion for Aiding Diagnosis of Blood Diseases

1 code implementation1 Jan 2024 Yifei Chen, Chenyan Zhang, Ben Chen, Yiyu Huang, Yifei Sun, Changmiao Wang, Xianjun Fu, Yuxing Dai, Feiwei Qin, Yong Peng, Yu Gao

To address these issues, this paper proposes an innovative method of leukocyte detection: the Multi-level Feature Fusion and Deformable Self-attention DETR (MFDS-DETR).

Generalizable Visual Reinforcement Learning with Segment Anything Model

1 code implementation28 Dec 2023 Ziyu Wang, Yanjie Ze, Yifei Sun, Zhecheng Yuan, Huazhe Xu

Learning policies that can generalize to unseen environments is a fundamental challenge in visual reinforcement learning (RL).

Data Augmentation model +3

Fine-tuning Graph Neural Networks by Preserving Graph Generative Patterns

1 code implementation21 Dec 2023 Yifei Sun, Qi Zhu, Yang Yang, Chunping Wang, Tianyu Fan, Jiajun Zhu, Lei Chen

In this paper, we identify the fundamental cause of structural divergence as the discrepancy of generative patterns between the pre-training and downstream graphs.

 Ranked #1 on Graph Classification on PROTEINS (Accuracy (10 fold) metric)

Graph Classification Graph Learning +3

CGS-Mask: Making Time Series Predictions Intuitive for All

no code implementations15 Dec 2023 Feng Lu, Wei Li, Yifei Sun, Cheng Song, Yufei Ren, Albert Y. Zomaya

Artificial intelligence (AI) has immense potential in time series prediction, but most explainable tools have limited capabilities in providing a systematic understanding of important features over time.

All Decision Making +3

SST: A Simplified Swin Transformer-based Model for Taxi Destination Prediction based on Existing Trajectory

no code implementations15 Aug 2023 Zepu Wang, Yifei Sun, Zhiyu Lei, Xincheng Zhu, Peng Sun

Accurately predicting the destination of taxi trajectories can have various benefits for intelligent location-based services.

Predictive Resource Allocation in mmWave Systems with Rotation Detection

no code implementations29 Mar 2023 Yifei Sun, Bojie Lv, Rui Wang, Haisheng Tan, Francis C. M. Lau

Millimeter wave (MmWave) has been regarded as a promising technology to support high-capacity communications in 5G era.

Scheduling

mmAlert: mmWave Link Blockage Prediction via Passive Sensing

no code implementations22 Feb 2023 Chao Yu, Yifei Sun, Yan Luo, Rui Wang

It is demonstrated via experiments that the mmAlert system can always detect the motions of the walking person close to the LoS path, and predict 90\% of the LoS blockage with sensing time of 1. 4 seconds.

Prediction

Hybrid Censored Quantile Regression Forest to Assess the Heterogeneous Effects

no code implementations12 Dec 2022 Huichen Zhu, Yifei Sun, Ying WEI

We propose a variable importance decomposition to measure the impact of a variable on the treatment effect function.

quantile regression

An Indoor Environment Sensing and Localization System via mmWave Phased Array

no code implementations7 Jun 2022 Yifei Sun, Jie Li, Tong Zhang, Rui Wang, Xiaohui Peng, Tony Xiao Han, Haisheng Tan

At the end, we show that the reconstructed room layout can be utilized to locate a mobile device according to its AoA spectrum, even with single access point.

Passive Motion Detection via mmWave Communication System

no code implementations28 Mar 2022 Jie Li, Chao Yu, Yan Luo, Yifei Sun, Rui Wang

Relying on the passive sensing system, a dataset of received signals, where three types of hand gestures are sensed, is collected by using Line-of-Sight (LoS) and Non-Line-of-Sight (NLoS) paths as the reference channel respectively.

Hand Gesture Recognition Hand-Gesture Recognition +1

Maskin Meets Abreu and Matsushima

no code implementations13 Oct 2021 Yi-Chun Chen, Takashi Kunimoto, Yifei Sun, Siyang Xiong

The theory of full implementation has been criticized for using integer/modulo games which admit no equilibrium (Jackson (1992)).

Improving Factual Consistency of Abstractive Summarization on Customer Feedback

no code implementations ACL (ECNLP) 2021 Yang Liu, Yifei Sun, Vincent Gao

E-commerce stores collect customer feedback to let sellers learn about customer concerns and enhance customer order experience.

Abstractive Text Summarization

Direct Implementation with Evidence

no code implementations26 May 2021 Soumen Banerjee, Yi-Chun Chen, Yifei Sun

In a richer model of evidence due to <cite>KT2012</cite>, we establish pure-strategy implementation with two or more agents in a direct revelation mechanism.

Universal phase dynamics in VO2 switches revealed by ultrafast operando diffraction

no code implementations11 Feb 2021 Aditya Sood, Xiaozhe Shen, Yin Shi, Suhas Kumar, Su Ji Park, Marc Zajac, Yifei Sun, Long-Qing Chen, Shriram Ramanathan, Xijie Wang, William C. Chueh, Aaron M. Lindenberg

Strongly correlated materials that exhibit an insulator-metal transition are key candidates in the search for new computing platforms.

Materials Science Mesoscale and Nanoscale Physics

A New Approach of Data Pre-processing for Data Compression in Smart Grids

no code implementations24 Nov 2020 Yifei Sun, Hang Zou, Samson Lasaulce, Michel Kieffer, Lucas Saludjian

The conventional approach to pre-process data for compression is to apply transforms such as the Fourier, the Karhunen-Lo\`{e}ve, or wavelet transforms.

Data Compression Decision Making

ROC-Guided Survival Trees and Forests

1 code implementation15 Sep 2018 Yifei Sun, Sy Han Chiou, Mei-Cheng Wang

Tree-based methods are popular nonparametric tools in studying time-to-event outcomes.

Methodology

Simplex Search Based Brain Storm Optimization

no code implementations24 Oct 2017 Wei Chen, YingYing Cao, Shi Cheng, Yifei Sun, Qunfeng Liu, Yun Li

Through modeling human's brainstorming process, the brain storm optimization (BSO) algorithm has become a promising population-based evolutionary algorithm.

global-optimization

Dynamic scaling for the growth of non-equilibrium fluctuations during thermophoretic diffusion in microgravity

1 code implementation12 Feb 2015 Roberto Cerbino, Yifei Sun, Aleksandar Donev, Alberto Vailati

Both experiments and simulations show that during the onset the fluctuations exhibit scale invariance at large wave vectors.

Soft Condensed Matter

Slowing-down of non-equilibrium concentration fluctuations in confinement

1 code implementation23 Oct 2014 Cédric Giraudet, Henri Bataller, Yifei Sun, Aleksandar Donev, José Maria Ortiz de Zárate, Fabrizio Croccolo

Fluctuations in a fluid are strongly affected by the presence of a macroscopic gradient making them long-ranged and enhancing their amplitude.

Soft Condensed Matter Mesoscale and Nanoscale Physics

Cannot find the paper you are looking for? You can Submit a new open access paper.