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Adversarial training (AT) is a simple yet effective defense against adversarial attacks to image classification systems, which is based on augmenting the training set with attacks that maximize the loss. However, the effectiveness of AT as…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Kaleab A. Kinfu , René Vidal

We propose a novel technique to make neural network robust to adversarial examples using a generative adversarial network. We alternately train both classifier and generator networks. The generator network generates an adversarial…

Machine Learning · Computer Science 2023-07-06 Hyeungill Lee , Sungyeob Han , Jungwoo Lee

Recent advancements in sequential modeling applied to Electronic Health Records (EHR) have greatly influenced prescription recommender systems. While the recent literature on drug recommendation has shown promising performance, the study of…

Machine Learning · Computer Science 2024-08-21 Arya Hadizadeh Moghaddam , Mohsen Nayebi Kerdabadi , Mei Liu , Zijun Yao

Recommendation systems are a key modern application of machine learning, but they have the downside that they often draw upon sensitive user information in making their predictions. We show how to address this deficiency by basing a…

Machine Learning · Computer Science 2021-12-03 Naveen Durvasula , Franklyn Wang , Scott Duke Kominers

Adversarial attacks, e.g., adversarial perturbations of the input and adversarial samples, pose significant challenges to machine learning and deep learning techniques, including interactive recommendation systems. The latent embedding…

Machine Learning · Computer Science 2021-12-03 Siyu Wang , Yuanjiang Cao , Xiaocong Chen , Lina Yao , Xianzhi Wang , Quan Z. Sheng

Recommendation is one of the critical applications that helps users find information relevant to their interests. However, a malicious attacker can infer users' private information via recommendations. Prior work obfuscates user-item data…

Social and Information Networks · Computer Science 2019-11-25 Ghazaleh Beigi , Ahmadreza Mosallanezhad , Ruocheng Guo , Hamidreza Alvari , Alexander Nou , Huan Liu

In this paper a multi-parameter A*(A- star)-ants based algorithm is proposed in order to find the best optimized multi-parameter path between two desired points in regions. This algorithm recognizes paths, according to user desired…

Neural and Evolutionary Computing · Computer Science 2015-04-29 Hojjat Salehinejad , Hossein Nezamabadi-pour , Saeid Saryazdi , Fereydoun Farrahi-Moghaddam

Within mobility systems, the presence of self-interested users can lead to aggregate routing patterns that are far from the societal optimum which could be achieved by centrally controlling the users' choices. In this paper, we design a…

Systems and Control · Electrical Eng. & Systems 2024-05-03 Leonardo Pedroso , W. P. M. H. Heemels , Mauro Salazar

Network traffic classification is used in various applications such as network traffic management, policy enforcement, and intrusion detection systems. Although most applications encrypt their network traffic and some of them dynamically…

Cryptography and Security · Computer Science 2021-01-22 Amir Mahdi Sadeghzadeh , Saeed Shiravi , Rasool Jalili

Adversarial perturbations can pose a serious threat for deploying machine learning systems. Recent works have shown existence of image-agnostic perturbations that can fool classifiers over most natural images. Existing methods present…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Konda Reddy Mopuri , Utkarsh Ojha , Utsav Garg , R. Venkatesh Babu

In this paper, we study a new learning paradigm for Neural Machine Translation (NMT). Instead of maximizing the likelihood of the human translation as in previous works, we minimize the distinction between human translation and the…

Computation and Language · Computer Science 2018-10-02 Lijun Wu , Yingce Xia , Li Zhao , Fei Tian , Tao Qin , Jianhuang Lai , Tie-Yan Liu

Mobility service route design requires demand information to operate in a service region. Transit planners and operators can access various data sources including household travel survey data and mobile device location logs. However, when…

Artificial Intelligence · Computer Science 2024-09-04 Gyugeun Yoon , Joseph Y. J. Chow

Though deep neural networks exhibit superior performance on various tasks, they are still plagued by adversarial examples. Adversarial training has been demonstrated to be the most effective method to defend against adversarial attacks.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Xin Liu , Yichen Yang , Kun He , John E. Hopcroft

Activity generation plays an important role in activity-based demand modelling systems. While machine learning, especially deep learning, has been increasingly used for mode choice and traffic flow prediction, much less research exploiting…

Machine Learning · Computer Science 2021-04-07 Danh T. Phan , Hai L. Vu

This paper presents a novel deep learning framework for human trajectory prediction and detecting social group membership in crowds. We introduce a generative adversarial pipeline which preserves the spatio-temporal structure of the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-20 Tharindu Fernando , Simon Denman , Sridha Sridharan , Clinton Fookes

We introduce two tactics to attack agents trained by deep reinforcement learning algorithms using adversarial examples, namely the strategically-timed attack and the enchanting attack. In the strategically-timed attack, the adversary aims…

Machine Learning · Computer Science 2019-11-14 Yen-Chen Lin , Zhang-Wei Hong , Yuan-Hong Liao , Meng-Li Shih , Ming-Yu Liu , Min Sun

Generative Adversarial Networks (GANs) for text generation have recently received many criticisms, as they perform worse than their MLE counterparts. We suspect previous text GANs' inferior performance is due to the lack of a reliable…

Computation and Language · Computer Science 2021-04-28 Qingyang Wu , Lei Li , Zhou Yu

We propose a novel approach for trip prediction by analyzing user's trip histories. We augment users' (self-) trip histories by adding 'similar' trips from other users, which could be informative and useful for predicting future trips for a…

Artificial Intelligence · Computer Science 2023-01-02 Yuxin Chen , Morteza Haghir Chehreghani

Many payment platforms hold large-scale marketing campaigns, which allocate incentives to encourage users to pay through their applications. To maximize the return on investment, incentive allocations are commonly solved in a two-stage…

Machine Learning · Computer Science 2022-01-03 Xuanying Chen , Zhining Liu , Li Yu , Sen Li , Lihong Gu , Xiaodong Zeng , Yize Tan , Jinjie Gu

In real world systems, the predictions of deployed Machine Learned models affect the training data available to build subsequent models. This introduces a bias in the training data that needs to be addressed. Existing solutions to this…

Machine Learning · Computer Science 2018-04-20 John Moore , Joel Pfeiffer , Kai Wei , Rishabh Iyer , Denis Charles , Ran Gilad-Bachrach , Levi Boyles , Eren Manavoglu