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Recent work has proposed several efficient approaches for generating gradient-based adversarial perturbations on embeddings and proved that the model's performance and robustness can be improved when they are trained with these contaminated…

Computation and Language · Computer Science 2021-09-15 Yao Qiu , Jinchao Zhang , Jie Zhou

Topic models aim to reveal latent structures within a corpus of text, typically through the use of term-frequency statistics over bag-of-words representations from documents. In recent years, conceptual entities -- interpretable,…

Computation and Language · Computer Science 2024-08-27 Manuel V. Loureiro , Steven Derby , Tri Kurniawan Wijaya

For many computer vision applications such as image captioning, visual question answering, and person search, learning discriminative feature representations at both image and text level is an essential yet challenging problem. Its…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Nikolaos Sarafianos , Xiang Xu , Ioannis A. Kakadiaris

We introduce Topic Grouper as a complementary approach in the field of probabilistic topic modeling. Topic Grouper creates a disjunctive partitioning of the training vocabulary in a stepwise manner such that resulting partitions represent…

Information Retrieval · Computer Science 2019-04-16 Daniel Pfeifer , Jochen L. Leidner

While deep neural networks have achieved remarkable success in various computer vision tasks, they often fail to generalize to new domains and subtle variations of input images. Several defenses have been proposed to improve the robustness…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Omid Poursaeed , Tianxing Jiang , Harry Yang , Serge Belongie , SerNam Lim

In recent years, text generation tools utilizing Artificial Intelligence (AI) have occasionally been misused across various domains, such as generating student reports or creative writings. This issue prompts plagiarism detection services…

Computation and Language · Computer Science 2025-04-14 Ahmed K. Kadhim , Lei Jiao , Rishad Shafik , Ole-Christoffer Granmo

Machine learning models are vulnerable to maliciously crafted Adversarial Examples (AEs). Training a machine learning model with AEs improves its robustness and stability against adversarial attacks. It is essential to develop models that…

Computation and Language · Computer Science 2024-03-19 Javad Rafiei Asl , Mohammad H. Rafiei , Manar Alohaly , Daniel Takabi

In this work, we propose a method for neural dialogue response generation that allows not only generating semantically reasonable responses according to the dialogue history, but also explicitly controlling the sentiment of the response via…

Computation and Language · Computer Science 2019-01-23 Xiang Kong , Bohan Li , Graham Neubig , Eduard Hovy , Yiming Yang

Topic modeling based on latent Dirichlet allocation (LDA) has been a framework of choice to perform scene recognition and annotation. Recently, a new type of topic model called the Document Neural Autoregressive Distribution Estimator…

Computer Vision and Pattern Recognition · Computer Science 2013-05-24 Yin Zheng , Yu-Jin Zhang , Hugo Larochelle

Adversarial training, a method for learning robust deep neural networks, constructs adversarial examples during training. However, recent methods for generating NLP adversarial examples involve combinatorial search and expensive sentence…

Computation and Language · Computer Science 2021-09-14 Jin Yong Yoo , Yanjun Qi

With the wide application of deep neural network models in various computer vision tasks, there has been a proliferation of adversarial example generation strategies aimed at deeply exploring model security. However, existing adversarial…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Wenxuan Wang , Chenglei Wang , Huihui Qi , Menghao Ye , Xuelin Qian , Peng Wang , Yanning Zhang

Topic models have been prevalent for decades with various applications. However, existing topic models commonly suffer from the notorious topic collapsing: discovered topics semantically collapse towards each other, leading to highly…

Computation and Language · Computer Science 2023-06-08 Xiaobao Wu , Xinshuai Dong , Thong Nguyen , Anh Tuan Luu

The rise of deep learning technique has raised new privacy concerns about the training data and test data. In this work, we investigate the model inversion problem in the adversarial settings, where the adversary aims at inferring…

Cryptography and Security · Computer Science 2019-02-25 Ziqi Yang , Ee-Chien Chang , Zhenkai Liang

Recent works in Grammatical Error Correction (GEC) have leveraged the progress in Neural Machine Translation (NMT), to learn rewrites from parallel corpora of grammatically incorrect and corrected sentences, achieving state-of-the-art…

Computation and Language · Computer Science 2020-10-07 Vipul Raheja , Dimitrios Alikaniotis

In this paper we present ToMCAT (Theory-of-Mind for Cooperative Agents in Teams), a new framework for generating ToM-conditioned trajectories. It combines a meta-learning mechanism, that performs ToM reasoning over teammates' underlying…

Multiagent Systems · Computer Science 2025-05-07 Pedro Sequeira , Vidyasagar Sadhu , Melinda Gervasio

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

In this paper, we propose Inverse Adversarial Training (IAT) algorithm for training neural dialogue systems to avoid generic responses and model dialogue history better. In contrast to standard adversarial training algorithms, IAT…

Computation and Language · Computer Science 2021-06-01 Wangchunshu Zhou , Qifei Li , Chenle Li

Topic modeling is a fundamental task in natural language processing, allowing the discovery of latent thematic structures in text corpora. While Large Language Models (LLMs) have demonstrated promising capabilities in topic discovery, their…

Computation and Language · Computer Science 2025-06-03 Xiaohao Yang , He Zhao , Weijie Xu , Yuanyuan Qi , Jueqing Lu , Dinh Phung , Lan Du

Dynamic topic models track the evolution of topics in sequential documents, which have derived various applications like trend analysis and opinion mining. However, existing models suffer from repetitive topic and unassociated topic issues,…

Computation and Language · Computer Science 2024-05-29 Xiaobao Wu , Xinshuai Dong , Liangming Pan , Thong Nguyen , Anh Tuan Luu

An adversarial attack paradigm explores various scenarios for the vulnerability of deep learning models: minor changes of the input can force a model failure. Most of the state of the art frameworks focus on adversarial attacks for images…

Machine Learning · Computer Science 2020-06-22 I. Fursov , A. Zaytsev , N. Kluchnikov , A. Kravchenko , E. Burnaev
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