Search Results for author: Liang Wu

Found 32 papers, 9 papers with code

Multi-Level Network Embedding with Boosted Low-Rank Matrix Approximation

2 code implementations ASONAM 2019 2019 Jundong Li, Liang Wu, Huan Liu

As opposed to manual feature engineering which is tedious and difficult to scale, network representation learning has attracted a surge of research interests as it automates the process of feature learning on graphs.

Ensemble Learning Feature Engineering +1

Editing Text in the Wild

2 code implementations8 Aug 2019 Liang Wu, Chengquan Zhang, Jiaming Liu, Junyu Han, Jingtuo Liu, Errui Ding, Xiang Bai

Specifically, we propose an end-to-end trainable style retention network (SRNet) that consists of three modules: text conversion module, background inpainting module and fusion module.

Image Inpainting Image-to-Image Translation +1

Collaborative Large Language Model for Recommender Systems

1 code implementation2 Nov 2023 Yaochen Zhu, Liang Wu, Qi Guo, Liangjie Hong, Jundong Li

We first extend the vocabulary of pretrained LLMs with user/item ID tokens to faithfully model user/item collaborative and content semantics.

Hallucination Language Modelling +2

GraphLLM: Boosting Graph Reasoning Ability of Large Language Model

1 code implementation9 Oct 2023 Ziwei Chai, Tianjie Zhang, Liang Wu, Kaiqiao Han, Xiaohai Hu, Xuanwen Huang, Yang Yang

This synergy equips LLMs with the ability to proficiently interpret and reason on graph data, harnessing the superior expressive power of graph learning models.

Graph Learning Language Modelling +1

Path-Specific Counterfactual Fairness for Recommender Systems

1 code implementation5 Jun 2023 Yaochen Zhu, Jing Ma, Liang Wu, Qi Guo, Liangjie Hong, Jundong Li

But since sensitive features may also affect user interests in a fair manner (e. g., race on culture-based preferences), indiscriminately eliminating all the influences of sensitive features inevitably degenerate the recommendations quality and necessary diversities.

Blocking counterfactual +4

LLM-Enhanced User-Item Interactions: Leveraging Edge Information for Optimized Recommendations

1 code implementation14 Feb 2024 Xinyuan Wang, Liang Wu, Liangjie Hong, Hao liu, Yanjie Fu

Additionally, we introduce graph relationship understanding and analysis functions into LLMs to enhance their focus on connectivity information in graph data.

Efficient Chemical Space Exploration Using Active Learning Based on Marginalized Graph Kernel: an Application for Predicting the Thermodynamic Properties of Alkanes with Molecular Simulation

1 code implementation1 Sep 2022 Yan Xiang, Yu-Hang Tang, Zheng Gong, Hongyi Liu, Liang Wu, Guang Lin, Huai Sun

We introduce an explorative active learning (AL) algorithm based on Gaussian process regression and marginalized graph kernel (GPR-MGK) to explore chemical space with minimum cost.

Active Learning GPR +2

Integrating Holistic and Local Information to Estimate Emotional Reaction Intensity

1 code implementation9 May 2023 Yini Fang, Liang Wu, Frederic Jumelle, Bertram Shi

We handle variable video length with a regression token that accumulates information from all frames into a fixed-dimensional vector independent of video length.

regression

SlangSD: Building and Using a Sentiment Dictionary of Slang Words for Short-Text Sentiment Classification

no code implementations17 Aug 2016 Liang Wu, Fred Morstatter, Huan Liu

To this end, we propose to build the first sentiment dictionary of slang words to aid sentiment analysis of social media content.

General Classification Sentiment Analysis +1

Heterogeneous Metric Learning with Content-based Regularization for Software Artifact Retrieval

no code implementations25 Sep 2014 Liang Wu, Hui Xiong, Liang Du, Bo Liu, Guandong Xu, Yong Ge, Yanjie Fu, Yuanchun Zhou, Jianhui Li

Specifically, this method can capture both the inherent information in the source codes and the semantic information hidden in the comments, descriptions, and identifiers of the source codes.

Information Retrieval Metric Learning +1

Data-Rate Driven Transmission Strategy for Deep Learning Based Communication Systems

no code implementations20 Dec 2018 Xiao Chen, Julian Cheng, Zaichen Zhang, Liang Wu, Jian Dang

The GDR scheme can achieve higher data rate than the conventional one-hot vector scheme with comparable BLER performance.

Information Theory Information Theory

Fine-grained Generalization Analysis of Vector-valued Learning

no code implementations29 Apr 2021 Liang Wu, Antoine Ledent, Yunwen Lei, Marius Kloft

In this paper, we initiate the generalization analysis of regularized vector-valued learning algorithms by presenting bounds with a mild dependency on the output dimension and a fast rate on the sample size.

Extreme Multi-Label Classification General Classification +2

Iterative Distillation for Better Uncertainty Estimates in Multitask Emotion Recognition

no code implementations21 Jul 2021 Didan Deng, Liang Wu, Bertram E. Shi

Iterative distillation over multiple generations significantly improves performance in both emotion recognition and uncertainty estimation.

Emotion Recognition

Stability and Generalization for Randomized Coordinate Descent

no code implementations17 Aug 2021 Puyu Wang, Liang Wu, Yunwen Lei

Randomized coordinate descent (RCD) is a popular optimization algorithm with wide applications in solving various machine learning problems, which motivates a lot of theoretical analysis on its convergence behavior.

Generalization Bounds

A Novel Two-stage Design Scheme of Equalizers for Uplink FBMC/OQAM-based Massive MIMO Systems

no code implementations4 Dec 2021 Yuhao Qi, Jian Dang, Zaichen Zhang, Liang Wu, Yongpeng Wu

However, existing works show that there remains residual interference after single-tap equalization even with infinite number of BS antennas, leading to a limitation of achievable signal-to-interference-plus-noise ratio (SINR) performance.

Fast and Arbitrary Beam Pattern Design for RIS-Assisted Terahertz Wireless Communication

no code implementations6 May 2022 Jian Dang, Zaichen Zhang, Yewei Li, Liang Wu, Bingcheng Zhu, Lei Wang

Reconfigurable intelligent surface (RIS) can assist terahertz wireless communication to restore the fragile line-of-sight links and facilitate beam steering.

MaskOCR: Text Recognition with Masked Encoder-Decoder Pretraining

no code implementations1 Jun 2022 Pengyuan Lyu, Chengquan Zhang, Shanshan Liu, Meina Qiao, Yangliu Xu, Liang Wu, Kun Yao, Junyu Han, Errui Ding, Jingdong Wang

Specifically, we transform text data into synthesized text images to unify the data modalities of vision and language, and enhance the language modeling capability of the sequence decoder using a proposed masked image-language modeling scheme.

Language Modelling Optical Character Recognition (OCR) +1

Equivalence of SS-based MPC and ARX-based MPC

no code implementations31 Aug 2022 Liang Wu

Two kinds of control-oriented models used in MPC are the state-space (SS) model and the input-output model (such as the ARX model).

A rapid-prototype MPC tool based on gPROMS platform

no code implementations31 Aug 2022 Liang Wu, Maarten Nauta

The gPROMS-MPC tool implements our previous construction-free CDAL and the online parametric active-set qpOASES algorithms to solve sparse or condensed MPC problem formulations, respectively, for possible successive linearization or high state-dimension cases.

C++ code Code Generation +1

An interpretative and adaptive MPC for nonlinear systems

no code implementations4 Sep 2022 Liang Wu

This interpretative ARX model is then updated online by the EKF algorithm, which is modified as a decoupled one without matrix-inverse operator.

C++ code Model Predictive Control

Remote Work Optimization with Robust Multi-channel Graph Neural Networks

no code implementations26 Aug 2022 Qinyi Zhu, Liang Wu, Qi Guo, Liangjie Hong

Introducing a brand new workplace type naturally leads to the cold-start problem, which is particularly more common for less active job seekers.

Vocal Bursts Type Prediction

RMES: Real-Time Micro-Expression Spotting Using Phase From Riesz Pyramid

1 code implementation9 May 2023 Yini Fang, Didan Deng, Liang Wu, Frederic Jumelle, Bertram Shi

In comparison to optical flow, phase provides more localized motion estimates, which are essential for ME spotting, resulting in higher performance.

Micro-Expression Spotting Optical Flow Estimation

A direct optimization algorithm for input-constrained MPC

no code implementations26 Jun 2023 Liang Wu, Richard D. Braatz

Providing an execution time certificate is a pressing requirement when deploying Model Predictive Control (MPC) in real-time embedded systems such as microcontrollers.

Model Predictive Control

Hybrid Control Policy for Artificial Pancreas via Ensemble Deep Reinforcement Learning

no code implementations13 Jul 2023 Wenzhou Lv, Tianyu Wu, Luolin Xiong, Liang Wu, Jian Zhou, Yang Tang, Feng Qian

Objective: The artificial pancreas (AP) has shown promising potential in achieving closed-loop glucose control for individuals with type 1 diabetes mellitus (T1DM).

Meta-Learning Model Predictive Control +1

Channel Modeling for Heterogeneous Vehicular ISAC System with Shared Clusters

no code implementations16 Jul 2023 Baiping Xiong, Zaichen Zhang, Yingmeng Ge, Haibo Wang, Hao Jiang, Liang Wu, Ziyang Zhang

In this paper, we consider the channel modeling of a heterogeneous vehicular integrated sensing and communication (ISAC) system, where a dual-functional multi-antenna base station (BS) intends to communicate with a multi-antenna vehicular receiver (MR) and sense the surrounding environments simultaneously.

AI-driven emergence of frequency information non-uniform distribution via THz metasurface spectrum prediction

no code implementations5 Dec 2023 Xiaohua Xing, Yuqi Ren, Die Zou, Qiankun Zhang, Bingxuan Mao, Jianquan Yao, Deyi Xiong, Shuang Zhang, Liang Wu

Recently, artificial intelligence has been extensively deployed across various scientific disciplines, optimizing and guiding the progression of experiments through the integration of abundant datasets, whilst continuously probing the vast theoretical space encapsulated within the data.

Large Scale Foundation Models for Intelligent Manufacturing Applications: A Survey

no code implementations11 Dec 2023 Haotian Zhang, Semujju Stuart Dereck, Zhicheng Wang, Xianwei Lv, Kang Xu, Liang Wu, Ye Jia, Jing Wu, Zhuo Long, Wensheng Liang, X. G. Ma, Ruiyan Zhuang

Although the applications of artificial intelligence especially deep learning had greatly improved various aspects of intelligent manufacturing, they still face challenges for wide employment due to the poor generalization ability, difficulties to establish high-quality training datasets, and unsatisfactory performance of deep learning methods.

LinkSAGE: Optimizing Job Matching Using Graph Neural Networks

no code implementations20 Feb 2024 Ping Liu, Haichao Wei, Xiaochen Hou, Jianqiang Shen, Shihai He, Kay Qianqi Shen, Zhujun Chen, Fedor Borisyuk, Daniel Hewlett, Liang Wu, Srikant Veeraraghavan, Alex Tsun, Chengming Jiang, Wenjing Zhang

This methodology decouples the training of the GNN model from that of existing Deep Neural Nets (DNN) models, eliminating the need for frequent GNN retraining while maintaining up-to-date graph signals in near realtime, allowing for the effective integration of GNN insights through transfer learning.

Graph Learning Transfer Learning

An Execution-time-certified Riccati-based IPM Algorithm for RTI-based Input-constrained NMPC

no code implementations25 Feb 2024 Liang Wu, Krystian Ganko, Shimin Wang, Richard D. Braatz

The execution-time certified capability of the algorithm is theoretically and numerically validated through a case study involving nonlinear control of the chaotic Lorenz system.

Model Predictive Control

Leveraging Foundation Model Automatic Data Augmentation Strategies and Skeletal Points for Hands Action Recognition in Industrial Assembly Lines

no code implementations14 Mar 2024 Liang Wu, X. -G. Ma

We proposed a method of converting hand action recognition problems into hand skeletal trajectory classification problems, which solved the real-time performance problem of industrial algorithms.

Action Recognition Data Augmentation +1

An Execution-time-certified QP Algorithm for $\ell_1$ penalty-based Soft-constrained MPC

no code implementations27 Mar 2024 Liang Wu, Richard D. Braatz

Providing an execution time certificate and handling possible infeasibility in closed-loop are two pressing requirements of Model Predictive Control (MPC).

Model Predictive Control

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