Search Results for author: Fu-Lai Chung

Found 19 papers, 12 papers with code

TransFlower: An Explainable Transformer-Based Model with Flow-to-Flow Attention for Commuting Flow Prediction

1 code implementation23 Feb 2024 Yan Luo, Zhuoyue Wan, Yuzhong Chen, Gengchen Mai, Fu-Lai Chung, Kent Larson

Understanding the link between urban planning and commuting flows is crucial for guiding urban development and policymaking.

Improving Generalizability of Graph Anomaly Detection Models via Data Augmentation

1 code implementation18 Jun 2023 Shuang Zhou, Xiao Huang, Ninghao Liu, Huachi Zhou, Fu-Lai Chung, Long-Kai Huang

In this paper, we base on the phenomenon and propose a general and novel research problem of generalized graph anomaly detection that aims to effectively identify anomalies on both the training-domain graph and unseen testing graph to eliminate potential dangers.

Data Augmentation Graph Anomaly Detection

Timestamps as Prompts for Geography-Aware Location Recommendation

no code implementations9 Apr 2023 Yan Luo, Haoyi Duan, Ye Liu, Fu-Lai Chung

In this paper, we revisit the problem of location recommendation and point out that explicitly modeling temporal information is a great help when the model needs to predict not only the next location but also further locations.

End-to-End Personalized Next Location Recommendation via Contrastive User Preference Modeling

no code implementations22 Mar 2023 Yan Luo, Ye Liu, Fu-Lai Chung, Yu Liu, Chang Wen Chen

History encoder is designed to model mobility patterns from historical check-in sequences, while query generator explicitly learns user preferences to generate user-specific intention queries.

Improving Generalizability of Graph Anomaly Detection Models via Data Augmentation

1 code implementation21 Sep 2022 Shuang Zhou, Xiao Huang, Ninghao Liu, Fu-Lai Chung, Long-Kai Huang

In this paper, we base on the phenomenon and propose a general and novel research problem of generalized graph anomaly detection that aims to effectively identify anomalies on both the training-domain graph and unseen testing graph to eliminate potential dangers.

Data Augmentation Graph Anomaly Detection

Adaptation-Agnostic Meta-Training

1 code implementation ICML Workshop AutoML 2021 Jiaxin Chen, Li-Ming Zhan, Xiao-Ming Wu, Fu-Lai Chung

Many meta-learning algorithms can be formulated into an interleaved process, in the sense that task-specific predictors are learned during inner-task adaptation and meta-parameters are updated during meta-update.

Meta-Learning

A Closer Look at the Training Strategy for Modern Meta-Learning

1 code implementation NeurIPS 2020 Jiaxin Chen, Xiao-Ming Wu, Yanke Li, Qimai Li, Li-Ming Zhan, Fu-Lai Chung

The support/query (S/Q) episodic training strategy has been widely used in modern meta-learning algorithms and is believed to improve their generalization ability to test environments.

Few-Shot Learning

Against Adversarial Learning: Naturally Distinguish Known and Unknown in Open Set Domain Adaptation

no code implementations4 Nov 2020 Sitong Mao, Xiao Shen, Fu-Lai Chung

Open set domain adaptation refers to the scenario that the target domain contains categories that do not exist in the source domain.

Domain Adaptation

Mixed Set Domain Adaptation

no code implementations4 Nov 2020 Sitong Mao, Keli Zhang, Fu-Lai Chung

Under the settings of MSDA, different categories of the source dataset are not all collected from the same domain(s).

Domain Adaptation

Deep Adversarial Domain Adaptation Based on Multi-layer Joint Kernelized Distance

no code implementations9 Oct 2020 Sitong Mao, Jiaxin Chen, Xiao Shen, Fu-Lai Chung

In this paper, a deep adversarial domain adaptation model based on a multi-layer joint kernelized distance metric is proposed.

Domain Adaptation

Network Together: Node Classification via Cross-Network Deep Network Embedding

1 code implementation4 Jun 2020 Xiao Shen, Quanyu Dai, Sitong Mao, Fu-Lai Chung, Kup-Sze Choi

On the other hand, node attributes and labels are leveraged to capture the proximities between nodes across different networks by making the same labeled nodes across networks have aligned latent vector representations.

Domain Adaptation General Classification +2

Adversarial Deep Network Embedding for Cross-network Node Classification

2 code implementations18 Feb 2020 Xiao Shen, Quanyu Dai, Fu-Lai Chung, Wei Lu, Kup-Sze Choi

This motivates us to propose an adversarial cross-network deep network embedding (ACDNE) model to integrate adversarial domain adaptation with deep network embedding so as to learn network-invariant node representations that can also well preserve the network structural information.

Classification Domain Adaptation +3

Variational Metric Scaling for Metric-Based Meta-Learning

1 code implementation26 Dec 2019 Jiaxin Chen, Li-Ming Zhan, Xiao-Ming Wu, Fu-Lai Chung

In this paper, we recast metric-based meta-learning from a Bayesian perspective and develop a variational metric scaling framework for learning a proper metric scaling parameter.

Few-Shot Learning Variational Inference

Network Together: Node Classification via Cross network Deep Network Embedding

1 code implementation22 Jan 2019 Xiao Shen, Quanyu Dai, Sitong Mao, Fu-Lai Chung, Kup-Sze Choi

On the other hand, node attributes and labels are leveraged to capture the proximities between nodes across different networks by making the same labeled nodes across networks have aligned latent vector representations.

Social and Information Networks

Deep Network Embedding for Graph Representation Learning in Signed Networks

1 code implementation7 Jan 2019 Xiao Shen, Fu-Lai Chung

As an effective approach to solve graph mining problems, network embedding aims to learn a low-dimensional feature vector representation for each node of a given network.

Community Detection Graph Mining +3

Theoretic Analysis and Extremely Easy Algorithms for Domain Adaptive Feature Learning

no code implementations5 Sep 2015 Wenhao Jiang, Cheng Deng, Wei Liu, Feiping Nie, Fu-Lai Chung, Heng Huang

Domain adaptation problems arise in a variety of applications, where a training dataset from the \textit{source} domain and a test dataset from the \textit{target} domain typically follow different distributions.

Domain Adaptation

Transfer Prototype-based Fuzzy Clustering

no code implementations19 Sep 2014 Zhaohong Deng, Yizhang Jiang, Fu-Lai Chung, Hisao Ishibuchi, Kup-Sze Choi, Shitong Wang

Specifically, the idea of leveraging knowledge from the source domain is exploited to develop a set of transfer prototype based fuzzy clustering (TPFC) algorithms.

Clustering Transfer Learning

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