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Cross-domain sentiment classification (CDSC) aims to use the transferable semantics learned from the source domain to predict the sentiment of reviews in the unlabeled target domain. Existing studies in this task attach more attention to…

Computation and Language · Computer Science 2022-05-19 Kai Zhang , Qi Liu , Zhenya Huang , Mingyue Cheng , Kun Zhang , Mengdi Zhang , Wei Wu , Enhong Chen

Graph neural networks (GNNs) have become increasingly popular in modeling graph-structured data due to their ability to learn node representations by aggregating local structure information. However, it is widely acknowledged that the test…

Machine Learning · Computer Science 2024-03-07 Donglin Xia , Xiao Wang , Nian Liu , Chuan Shi

Style transfer aims to render the content of a given image in the graphical/artistic style of another image. The fundamental concept underlying NeuralStyle Transfer (NST) is to interpret style as a distribution in the feature space of a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Nikolai Kalischek , Jan Dirk Wegner , Konrad Schindler

Graph Neural Networks (GNNs) achieve strong performance on node classification tasks but remain difficult to interpret, particularly with respect to which input features drive their predictions. Existing global GNN explainers operate at the…

Machine Learning · Computer Science 2026-05-06 Rishi Raj Sahoo , Subhankar Mishra

Counterfactual explanations aim to enhance model transparency by showing how inputs can be minimally altered to change predictions. For multivariate time series, existing methods often generate counterfactuals that are invalid, implausible,…

Machine Learning · Computer Science 2026-02-18 Sarah Seifi , Anass Ibrahimi , Tobias Sukianto , Cecilia Carbonelli , Lorenzo Servadei , Robert Wille

End-to-end neural TTS training has shown improved performance in speech style transfer. However, the improvement is still limited by the training data in both target styles and speakers. Inadequate style transfer performance occurs when the…

Sound · Computer Science 2021-06-21 Xiaochun An , Frank K. Soong , Lei Xie

The problem of long-tailed recognition, where the number of examples per class is highly unbalanced, is considered. It is hypothesized that the well known tendency of standard classifier training to overfit to popular classes can be…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Bo Liu , Haoxiang Li , Hao Kang , Gang Hua , Nuno Vasconcelos

Structural data well exists in Web applications, such as social networks in social media, citation networks in academic websites, and threads data in online forums. Due to the complex topology, it is difficult to process and make use of the…

Information Retrieval · Computer Science 2022-05-12 Juntao Tan , Shijie Geng , Zuohui Fu , Yingqiang Ge , Shuyuan Xu , Yunqi Li , Yongfeng Zhang

We propose Gradient Inversion Transcript (GIT), a novel generative approach for reconstructing training data from leaked gradients. GIT employs a generative attack model, whose architecture is tailored to align with the structure of the…

Machine Learning · Computer Science 2025-05-27 Xinping Chen , Chen Liu

Inference amortization methods share information across multiple posterior-inference problems, allowing each to be carried out more efficiently. Generally, they require the inversion of the dependency structure in the generative model, as…

Machine Learning · Statistics 2018-11-30 Stefan Webb , Adam Golinski , Robert Zinkov , N. Siddharth , Tom Rainforth , Yee Whye Teh , Frank Wood

The seminal work of Gatys et al. demonstrated the power of Convolutional Neural Networks (CNNs) in creating artistic imagery by separating and recombining image content and style. This process of using CNNs to render a content image in…

Computer Vision and Pattern Recognition · Computer Science 2018-10-31 Yongcheng Jing , Yezhou Yang , Zunlei Feng , Jingwen Ye , Yizhou Yu , Mingli Song

Neural Style Transfer (NST) is the field of study applying neural techniques to modify the artistic appearance of a content image to match the style of a reference style image. Traditionally, NST methods have focused on texture-based image…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Dan Ruta , Gemma Canet Tarrés , Andrew Gilbert , Eli Shechtman , Nicholas Kolkin , John Collomosse

We introduce a new task, Contextual Text Style Transfer - translating a sentence into a desired style with its surrounding context taken into account. This brings two key challenges to existing style transfer approaches: ($i$) how to…

Computation and Language · Computer Science 2020-05-04 Yu Cheng , Zhe Gan , Yizhe Zhang , Oussama Elachqar , Dianqi Li , Jingjing Liu

Graph Contrastive Learning (GCL) has emerged as a powerful paradigm for training Graph Neural Networks (GNNs) in the absence of task-specific labels. However, its scalability on large-scale graphs is hindered by the intensive message…

Machine Learning · Computer Science 2025-11-12 Xiang Chen , Kun Yue , Wenjie Liu , Zhenyu Zhang , Liang Duan

We introduce a novel semi-supervised Graph Counterfactual Explainer (GCE) methodology, Dynamic GRAph Counterfactual Explainer (DyGRACE). It leverages initial knowledge about the data distribution to search for valid counterfactuals while…

Machine Learning · Computer Science 2023-08-07 Bardh Prenkaj , Mario Villaizan-Vallelado , Tobias Leemann , Gjergji Kasneci

Graph Neural Networks (GNNs) are increasingly adopted across domains such as molecular biology and social network analysis, yet their black-box nature hinders interpretability and trust. This is especially problematic in high-stakes…

Machine Learning · Computer Science 2026-03-05 Matteo De Sanctis , Riccardo De Sanctis , Stefano Faralli , Paola Velardi , Bardh Prenkaj

Image style transfer has attracted widespread attention in the past few years. Despite its remarkable results, it requires additional style images available as references, making it less flexible and inconvenient. Using text is the most…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Zhi-Song Liu , Li-Wen Wang , Wan-Chi Siu , Vicky Kalogeiton

Counterfactual explanations enhance interpretability by identifying alternative inputs that produce different outputs, offering localized insights into model decisions. However, traditional methods often neglect causal relationships,…

Machine Learning · Computer Science 2025-05-23 Pouria Fatemi , Ehsan Sharifian , Mohammad Hossein Yassaee

Graph Neural Networks (GNNs) have been widely deployed in various real-world applications. However, most GNNs are black-box models that lack explanations. One strategy to explain GNNs is through counterfactual explanation, which aims to…

Machine Learning · Computer Science 2024-10-29 Yinhan He , Wendy Zheng , Yaochen Zhu , Jing Ma , Saumitra Mishra , Natraj Raman , Ninghao Liu , Jundong Li

Counterfactual Explanation (CE) techniques have garnered attention as a means to provide insights to the users engaging with AI systems. While extensively researched in domains such as medical imaging and autonomous vehicles, Graph…

Machine Learning · Computer Science 2024-01-12 Mario Alfonso Prado-Romero , Bardh Prenkaj , Giovanni Stilo