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Anomaly detection is an important problem in computer vision; however, the scarcity of anomalous samples makes this task difficult. Thus, recent anomaly detection methods have used only normal images with no abnormal areas for training. In…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Shinji Yamada , Satoshi Kamiya , Kazuhiro Hotta

We consider the problem of synthetically generating data that can closely resemble human decisions made in the context of an interactive human-AI system like a computer game. We propose a novel algorithm that can generate synthetic,…

Machine Learning · Computer Science 2023-04-17 Bryan Brandt , Prithviraj Dasgupta

Personal thermal comfort models aim to predict an individual's thermal comfort response, instead of the average response of a large group. Recently, machine learning algorithms have proven to be having enormous potential as a candidate for…

Machine Learning · Computer Science 2022-11-22 Hari Prasanna Das , Costas J. Spanos

Using agent-based social simulations can enhance our understanding of urban planning, public health, and economic forecasting. Realistic synthetic populations with numerous attributes strengthen these simulations. The Wasserstein Generative…

Machine Learning · Computer Science 2025-01-28 Vanja Falck

Large language models (LLMs) are increasingly deployed as agents, expected to decompose goals, invoke tools, and verify results in dynamic environments. Realizing these capabilities requires access to agentic data-structured interaction…

Artificial Intelligence · Computer Science 2025-10-22 Abhigya Verma , Seganrasan Subramanian , Nandhakumar Kandasamy , Naman Gupta

This paper introduces a machine learning-based approach to synthetically creating realistic phasor measurement unit (PMU) data streams of multiple transient types. In contrast to the existing literature of transient simulation-based data…

Signal Processing · Electrical Eng. & Systems 2020-04-08 Xiangtian Zheng , Bin Wang , Dileep Kalathil , Le Xie

Hacking and false data injection from adversaries can threaten power grids' everyday operations and cause significant economic loss. Anomaly detection in power grids aims to detect and discriminate anomalies caused by cyber attacks against…

Machine Learning · Computer Science 2023-03-14 Xijuan Sun , Di Wu , Arnaud Zinflou , Benoit Boulet

The availability of genomic data is essential to progress in biomedical research, personalized medicine, etc. However, its extreme sensitivity makes it problematic, if not outright impossible, to publish or share it. As a result, several…

Genomics · Quantitative Biology 2022-01-19 Bristena Oprisanu , Georgi Ganev , Emiliano De Cristofaro

$\textbf{Background:}$ At the onset of a pandemic, such as COVID-19, data with proper labeling/attributes corresponding to the new disease might be unavailable or sparse. Machine Learning (ML) models trained with the available data, which…

Data imbalance in training data often leads to biased predictions from trained models, which in turn causes ethical and social issues. A straightforward solution is to carefully curate training data, but given the enormous scale of modern…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Moon Ye-Bin , Nam Hyeon-Woo , Wonseok Choi , Nayeong Kim , Suha Kwak , Tae-Hyun Oh

Synthetic data generation overcomes limitations of real-world machine learning. Traditional methods are valuable for augmenting costly datasets but only optimize one criterion: realism. In this paper, we tackle the problem of generating…

Machine Learning · Computer Science 2021-11-16 Chance N DeSmet , Diane J Cook

This paper presents an automated machine learning framework designed to assist hydrologists in detecting anomalies in time series data generated by sensors in a research watershed in the northeastern United States critical zone. The…

Machine Learning · Computer Science 2023-12-07 Ijaz Ul Haq , Byung Suk Lee , Donna M. Rizzo , Julia N Perdrial

Access to individual-level health data is essential for gaining new insights and advancing science. In particular, modern methods based on artificial intelligence rely on the availability of and access to large datasets. In the health…

Astronomy of the 21st century increasingly finds itself with extreme quantities of data. This growth in data is ripe for modern technologies such as deep image processing, which has the potential to allow astronomers to automatically…

Instrumentation and Methods for Astrophysics · Physics 2019-03-19 Levi Fussell , Ben Moews

Agent-based models (ABMs) simulate interactions between autonomous agents in constrained environments over time. ABMs are often used for modeling the spread of infectious diseases. In order to simulate disease outbreaks or other phenomena,…

Other Statistics · Statistics 2017-01-11 Shannon Gallagher , Lee Richardson , Samuel L. Ventura , William F. Eddy

With increasingly larger and more complex telecommunication networks, there is a need for improved monitoring and reliability. Requirements increase further when working with mission-critical systems requiring stable operations to meet…

Networking and Internet Architecture · Computer Science 2024-08-28 Sean Doris , Iosif Salem , Stefan Schmid

Anomaly detection suffers from unbalanced data since anomalies are quite rare. Synthetically generated anomalies are a solution to such ill or not fully defined data. However, synthesis requires an expressive representation to guarantee the…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Adín Ramírez Rivera , Adil Khan , Imad E. I. Bekkouch , Taimoor S. Sheikh

The performance of neural network models is often limited by the availability of big data sets. To treat this problem, we survey and develop novel synthetic data generation and augmentation techniques for enhancing low/zero-sample learning…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Nathan Clement , Alan Schoen , Arnold Boedihardjo , Andrew Jenkins

Supervised classification methods have been widely utilized for the quality assurance of the advanced manufacturing process, such as additive manufacturing (AM) for anomaly (defects) detection. However, since abnormal states (with defects)…

Machine Learning · Computer Science 2022-11-29 Jihoon Chung , Bo Shen , Zhenyu , Kong

Anomalies represent deviations from the intended system operation and can lead to decreased efficiency as well as partial or complete system failure. As the causes of anomalies are often unknown due to complex system dynamics, efficient…

Machine Learning · Computer Science 2021-08-31 Benjamin Lindemann , Benjamin Maschler , Nada Sahlab , Michael Weyrich