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Learning from a limited amount of data, namely Few-Shot Learning, stands out as a challenging computer vision task. Several works exploit semantics and design complicated semantic fusion mechanisms to compensate for rare representative…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Hai Zhang , Junzhe Xu , Shanlin Jiang , Zhenan He

Contextual proximity detection (or, co-presence detection) is a promising approach to defend against relay attacks in many mobile authentication systems. We present a systematic assessment of co-presence detection in the presence of a…

Cryptography and Security · Computer Science 2021-04-06 Babins Shrestha , Nitesh Saxena , Hien Thi Thu Truong , N. Asokan

Vulnerability detection is a critical aspect of software security. Accurate detection is essential to prevent potential security breaches and protect software systems from malicious attacks. Recently, vulnerability detection methods…

Software Engineering · Computer Science 2025-04-24 Yixin Yang , Bowen Xu , Xiang Gao , Hailong Sun

Retrieval augmented generation systems have become an integral part of everyday life. Whether in internet search engines, email systems, or service chatbots, these systems are based on context retrieval and answer generation with large…

Cryptography and Security · Computer Science 2026-03-19 Patrick Levi

Advanced Persistent Threats (APTs) pose a severe challenge to cyber defense due to their stealthy behavior and the extreme class imbalance inherent in detection datasets. To address these issues, we propose a novel active learning-based…

Machine Learning · Computer Science 2025-08-27 Sidahmed Benabderrahmane , Talal Rahwan

Few-shot learning is a challenging problem since only a few examples are provided to recognize a new class. Several recent studies exploit additional semantic information, e.g. text embeddings of class names, to address the issue of rare…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Wentao Chen , Chenyang Si , Zhang Zhang , Liang Wang , Zilei Wang , Tieniu Tan

As cyber-physical systems grow increasingly interconnected and spatially distributed, ensuring their resilience against evolving cyberattacks has become a critical priority. Spatio-Temporal Anomaly detection plays an important role in…

Machine Learning · Computer Science 2025-07-14 Arun Vignesh Malarkkan , Haoyue Bai , Xinyuan Wang , Anjali Kaushik , Dongjie Wang , Yanjie Fu

The Uniform Resource Locator (URL), introduced in a connectivity-first era to define access and locate resources, remains historically limited, lacking future-proof mechanisms for security, trust, or resilience against fraud and abuse,…

Cryptography and Security · Computer Science 2026-02-04 Najmul Hasan , Prashanth BusiReddyGari

Although extensive research has been conducted on 3D point cloud segmentation, effectively adapting generic models to novel categories remains a formidable challenge. This paper proposes a novel approach to improve point cloud few-shot…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Zhenhua Ning , Zhuotao Tian , Guangming Lu , Wenjie Pei

Few-shot learning is a fundamental and challenging problem since it requires recognizing novel categories from only a few examples. The objects for recognition have multiple variants and can locate anywhere in images. Directly comparing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Congqi Cao , Yanning Zhang

In this work, we address the problem of few-shot multi-class object counting with point-level annotations. The proposed technique leverages a class agnostic attention mechanism that sequentially attends to objects in the image and extracts…

Computer Vision and Pattern Recognition · Computer Science 2020-07-09 Negin Sokhandan , Pegah Kamousi , Alejandro Posada , Eniola Alese , Negar Rostamzadeh

Topic models have been successfully used for analyzing text documents. However, with existing topic models, many documents are required for training. In this paper, we propose a neural network-based few-shot learning method that can learn a…

Computation and Language · Computer Science 2021-04-20 Tomoharu Iwata

Attention-based architectures trained on internet-scale language data have demonstrated state of the art reasoning ability for various language-based tasks, such as logic problems and textual reasoning. Additionally, these Large Language…

Robotics · Computer Science 2025-08-22 Mark Van der Merwe , Devesh Jha

Few-shot named entity recognition (NER) systems aims at recognizing new classes of entities based on a few labeled samples. A significant challenge in the few-shot regime is prone to overfitting than the tasks with abundant samples. The…

Computation and Language · Computer Science 2023-05-04 Zhen Yang , Yongbin Liu , Chunping Ouyang

Few-shot segmentation (FSS) aims to segment unseen classes given only a few annotated samples. Existing methods suffer the problem of feature undermining, i.e. potential novel classes are treated as background during training phase. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao

Cyber attacks are often identified using system and network logs. There have been significant prior works that utilize provenance graphs and ML techniques to detect attacks, specifically advanced persistent threats, which are very difficult…

Cryptography and Security · Computer Science 2023-11-13 Sihat Afnan , Mushtari Sadia , Shahrear Iqbal , Anindya Iqbal

Deep learning based models have excelled in many computer vision tasks and appear to surpass humans' performance. However, these models require an avalanche of expensive human labeled training data and many iterations to train their large…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Yikai Wang , Li Zhang , Yuan Yao , Yanwei Fu

Few-shot learning is a technique to learn a model with a very small amount of labeled training data by transferring knowledge from relevant tasks. In this paper, we propose a few-shot learning method for wearable sensor based human activity…

Machine Learning · Computer Science 2019-03-26 Siwei Feng , Marco F. Duarte

Traditional static cybersecurity models often struggle with scalability, real-time detection, and contextual responsiveness in the current digital product ecosystems which include cloud services, application programming interfaces (APIs),…

Artificial Intelligence · Computer Science 2025-10-03 Oluwakemi T. Olayinka , Sumeet Jeswani , Divine Iloh

The application of activity recognition in the "AI + Education" field is gaining increasing attention. However, current work mainly focuses on the recognition of activities in manually captured videos and a limited number of activity types,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Yilei Qian , Kanglei Geng , Kailong Chen , Shaoxu Cheng , Linfeng Xu , Hongliang Li , Fanman Meng , Qingbo Wu