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Federated learning improves data privacy and efficiency in machine learning performed over networks of distributed devices, such as mobile phones, IoT and wearable devices, etc. Yet models trained with federated learning can still fail to…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Xingchao Peng , Zijun Huang , Yizhe Zhu , Kate Saenko

With the increase of distance learning, in general, and e-learning, in particular, having a system capable of determining the engagement of students is of primordial importance, and one of the biggest challenges, both for teachers,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Prabin Sharma , Shubham Joshi , Subash Gautam , Sneha Maharjan , Salik Ram Khanal , Manuel Cabral Reis , João Barroso , Vítor Manuel de Jesus Filipe

Transfer learning has emerged as a powerful methodology for adapting pre-trained deep neural networks on image recognition tasks to new domains. This process consists of taking a neural network pre-trained on a large feature-rich source…

Machine Learning · Computer Science 2021-04-27 Francisco Utrera , Evan Kravitz , N. Benjamin Erichson , Rajiv Khanna , Michael W. Mahoney

Deep learning, as a highly efficient method for metasurface inverse design, commonly use simulation data to train deep neural networks (DNNs) that can map desired functionalities to proper metasurface designs. However, the assumptions and…

Signal Processing · Electrical Eng. & Systems 2023-08-07 Jingxin Zhang , Jiawei Xi , Peixing Li , Ray C. C. Cheung , Alex M. H. Wong , Jensen Li

To reduce the large computation and storage cost of a deep convolutional neural network, the knowledge distillation based methods have pioneered to transfer the generalization ability of a large (teacher) deep network to a light-weight…

Machine Learning · Computer Science 2018-10-19 Peiye Liu , Wu Liu , Huadong Ma , Tao Mei , Mingoo Seok

(Unsupervised) Domain Adaptation (DA) seeks for classifying target instances when solely provided with source labeled and target unlabeled examples for training. Learning domain-invariant features helps to achieve this goal, whereas it…

Machine Learning · Computer Science 2019-07-09 Ziliang Chen , Jingyu Zhuang , Xiaodan Liang , Liang Lin

Engagement in virtual learning is crucial for a variety of factors including student satisfaction, performance, and compliance with learning programs, but measuring it is a challenging task. There is therefore considerable interest in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-04 Ali Abedi , Shehroz S. Khan

We present a novel variant of Domain Adversarial Networks with impactful improvements to the loss functions, training paradigm, and hyperparameter optimization. New loss functions are defined for both forks of the DANN network, the label…

Machine Learning · Computer Science 2020-11-24 Tom Grimes , Eric Church , William Pitts , Lynn Wood , Eva Brayfindley , Luke Erikson , Mark Greaves

Adversarial learning has been embedded into deep networks to learn disentangled and transferable representations for domain adaptation. Existing adversarial domain adaptation methods may not effectively align different domains of multimodal…

Machine Learning · Computer Science 2019-01-01 Mingsheng Long , Zhangjie Cao , Jianmin Wang , Michael I. Jordan

Gradient-based attention modeling has been used widely as a way to visualize and understand convolutional neural networks. However, exploiting these visual explanations during the training of generative adversarial networks (GANs) is an…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Runze Li , Tomaso Fontanini , Luca Donati , Andrea Prati , Bir Bhanu

Engagement is an essential indicator of the Quality-of-Learning Experience (QoLE) and plays a major role in developing intelligent educational interfaces. The number of people learning through Massively Open Online Courses (MOOCs) and other…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Sarthak Batra , Hewei Wang , Avishek Nag , Philippe Brodeur , Marianne Checkley , Annette Klinkert , Soumyabrata Dev

In the context of supervised statistical learning, it is typically assumed that the training set comes from the same distribution that draws the test samples. When this is not the case, the behavior of the learned model is unpredictable and…

Machine Learning · Computer Science 2022-05-12 Antonio-Javier Gallego , Jorge Calvo-Zaragoza , Robert B. Fisher

Adversarial attack transferability is well-recognized in deep learning. Prior work has partially explained transferability by recognizing common adversarial subspaces and correlations between decision boundaries, but little is known beyond…

Machine Learning · Computer Science 2023-02-24 Christopher Wiedeman , Ge Wang

Automatic detection of students' engagement in online learning settings is a key element to improve the quality of learning and to deliver personalized learning materials to them. Varying levels of engagement exhibited by students in an…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Ali Abedi , Shehroz S. Khan

Although attention mechanisms have become fundamental components of deep learning models, they are vulnerable to perturbations, which may degrade the prediction performance and model interpretability. Adversarial training (AT) for attention…

Computation and Language · Computer Science 2022-12-27 Shunsuke Kitada , Hitoshi Iyatomi

The increasingly fast development cycle for online course contents, along with the diverse student demographics in each online classroom, make real-time student outcomes prediction an interesting topic for both industrial research and…

Machine Learning · Computer Science 2019-05-08 Byung-Hak Kim

There are numerous advantages of deep neural network surrogate modeling for response time-history prediction. However, due to the high cost of refined numerical simulations and actual experiments, the lack of data has become an unavoidable…

Machine Learning · Computer Science 2023-06-16 Yongjia Xu , Xinzheng Lu , Yifan Fei , Yuli Huang

We have recently seen great progress in image classification due to the success of deep convolutional neural networks and the availability of large-scale datasets. Most of the existing work focuses on single-label image classification.…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Erik Quintanilla , Yogesh Rawat , Andrey Sakryukin , Mubarak Shah , Mohan Kankanhalli

Deep convolutional neural networks have achieved great success in various applications. However, training an effective DNN model for a specific task is rather challenging because it requires a prior knowledge or experience to design the…

Machine Learning · Computer Science 2018-06-06 Sheng-Jun Huang , Jia-Wei Zhao , Zhao-Yang Liu

School dropout is a serious problem in distance learning, where early detection is crucial for effective intervention and student perseverance. Predicting student dropout using available educational data is a widely researched topic in…

Artificial Intelligence · Computer Science 2025-07-15 Meriem Zerkouk , Miloud Mihoubi , Belkacem Chikhaoui