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20 results for “Anomaly detection”

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cs.LGcs.AIRecentMay 28, 2026

Masked Diffusion Modeling for Anomaly Detection

Lixing Zhang, Yuchen Liang, Liyan Xie

The paper proposes MaskDiff-AD, a forward-only masked diffusion model trained on nominal data to achieve state-of-the-art anomaly detection across various categorical, mixed-type, and text datasets.

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cs.LGcs.AIRecentMay 31, 2026

ChronosAD: Leveraging Time Series Foundation Models for Accurate Anomaly Detection

Uzair Khan, Luigi Capogrosso, Francesco Biondani, Michele Magno +3 more

ChronosAD introduces a novel architecture that uses time series foundation models and a custom Temporal Block to achieve robust and highly accurate anomaly detection across diverse domains.

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cs.CVcs.AIcs.LGRecentJun 1, 2026

A Structured Benchmark for Text-Guided Anomaly Detection: When Language Stops Conditioning the Decision

Stefano Samele, Eugenio Lomurno, Teodora Jovanovic, Sanjay Shivakumar Manohar +2 more

The paper introduces a structured benchmark (TGAD) showing that current text-guided anomaly detection models often overstate their language conditioning, as performance significantly degrades when the…

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cs.AIRecentMay 28, 2026

Tiny but Trusted: Efficient Vision-Language Reasoning for Time-Series Anomaly Detection

Xiaona Zhou, Muntasir Wahed, Tianjiao Yu, Constantin Brif +1 more

The paper introduces VisAnomReasoner, a parameter-efficient Vision-Language Model (VLM), trained on a new benchmark (VisAnomBench) to accurately and interpretably detect anomalies in time-series data.

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cs.CRRecentApr 27, 2026

System-aware contextual digital twin for ICS anomaly diagnosis

Eungyu Woo, Yooshin Kim, Wonje Heo, Donghoon Shin

The paper proposes a system-aware unsupervised framework that combines lightweight online detection with a contextual digital twin and LLM to provide interpretable, actionable anomaly diagnoses for In…

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cs.CRcs.LGRecentApr 14, 2026

Anomaly Detection in IEC-61850 GOOSE Networks: Evaluating Unsupervised and Temporal Learning for Real-Time Intrusion Detection

Joseph Moore

This paper evaluates unsupervised temporal learning models, specifically recurrent autoencoders, for real-time anomaly detection in vulnerable IEC-61850 GOOSE networks, demonstrating that the GRU mode…

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cs.CRRecentApr 16, 2026

Beyond Nodes vs. Edges: A Multi-View Fusion Framework for Provenance-Based Intrusion Detection

Fan Yang, Binyan Xu, Di Tang, Kehuan Zhang

The paper proposes PROVFUSION, a multi-view fusion framework that integrates anomaly signals from attribute, structure, and causality views to overcome the limitations of single node- or edge-centric…

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cs.CRRecentMar 30, 2026

Interpretable Ensemble Learning for Network Traffic Anomaly Detection: A SHAP-based Explainable AI Framework for Embedded Systems Security

Wanru Shao

The paper proposes an ensemble learning framework combined with SHAP-based Explainable AI (XAI) to achieve robust and interpretable anomaly detection for network traffic in embedded systems.

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cs.CRcs.LGRecentJun 1, 2026

IstGPT: LLM-based Anomaly Detection for Spatial-Temporal Graph in Industrial Systems

Yuchen Zhang, Ning Xi, Pengbin Feng, Shigang Liu +4 more

IstGPT introduces a novel LLM-based framework for real-time, fine-grained anomaly detection in complex industrial cyber-physical systems, achieving state-of-the-art performance across multiple benchma…

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cs.LGcs.AIEmpiricalRecentJun 11, 2026

CRAFTIIF: Cross-Resolution Analytic Four-Type Interpretable Isolation Forest for Multivariate Time Series Anomaly Detection

William Smits

This paper presents a fully unsupervised framework called CRAFTIIF for detecting four types of anomalies in multivariate time series data.

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cs.CVcs.AIRecentMay 27, 2026

Anomaly as Non-Conformity via Training-Free Graph Laplacian Energy Minimization

Jungwook Seo, Minjeong Kim, Younkwan Lee, Seungho Shin +1 more

The paper proposes ANoCo, a training-free method that detects visual anomalies by quantifying how much a query patch deviates from the structure of a fixed normal feature manifold using graph Laplacia…

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cs.LGcs.CRRecentMar 23, 2026

In-network Attack Detection with Federated Deep Learning in IoT Networks: Real Implementation and Analysis

Devashish Chaudhary, Sutharshan Rajasegarar, Shiva Raj Pokhrel, Lei Pan +1 more

This paper proposes and evaluates a federated deep learning framework using autoencoders for lightweight, privacy-preserving, and scalable real-time anomaly detection in resource-constrained IoT netwo…

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cs.LGcs.CRRecentApr 21, 2026

Mechanistic Anomaly Detection via Functional Attribution

Hugo Lyons Keenan, Christopher Leckie, Sarah Erfani

The paper proposes reframing mechanistic anomaly detection (MAD) as a functional attribution problem, using influence functions to measure how much a model's output depends on specific input samples,…

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cs.CRcs.LGcs.NIRecentApr 20, 2026

Enhancing Anomaly-Based Intrusion Detection Systems with Process Mining

Francesco Vitale, Francesco Grimaldi, Massimiliano Rak, Nicola Mazzocca

This paper enhances anomaly-based Intrusion Detection Systems by integrating process mining to provide detailed, process-based explanations and severity ratings for detected network anomalies.

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cs.CRcs.LGRecentMay 8, 2026

GRASP -- Graph-Based Anomaly Detection Through Self-Supervised Classification

Robin Buchta, Carsten Kleiner, Felix Heine, Gabi Dreo Rodosek

GRASP introduces a novel graph-based anomaly detection system that uses masked self-supervised classification on process provenance graphs to robustly identify unknown and unknown-unknown anomalous be…

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cs.CRcs.NIRecentApr 25, 2026

Advanced Anomaly Detection and Threat Intelligence in Zero Trust IoT Environments Using Machine Learning

Muhammad Umair Basharat, Jawad Hussain, Waqas Khalid, Chiew Foong Kwong

This paper enhances anomaly detection and threat intelligence in Zero Trust IoT environments by applying and comparing various machine learning classifiers, notably using SMOTE to improve accuracy on…

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cs.CRcs.IRcs.LGRecentJun 3, 2026

NLLog: Lightweight, Explainable SOC Anomaly Detection via Log-to-Language Rewriting

Samuel Ndichu, Tao Ban, Seiichi Ozawa, Takeshi Takahashi +1 more

NLLog introduces a lightweight system that converts structured security logs into natural language sentences for improved anomaly detection, achieving high performance with low false-positive rates su…

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cs.CRcs.IRcs.LGRecentJun 3, 2026

NLLog: Lightweight, Explainable SOC Anomaly Detection via Log-to-Language Rewriting

Samuel Ndichu, Tao Ban, Seiichi Ozawa, Takeshi Takahashi +1 more

NLLog is a lightweight pipeline that rewrites system-generated logs into natural language for improved analysis and comprehension.

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cs.CRcs.LGRecentMay 19, 2026

Latent Geometry as a Structural Monitor: Eigenspace Alignment for Anomaly Detection in Anonymity Networks

Vaibhav Chhabra

The paper proposes using geometric metrics, specifically eigenspace alignment, to monitor the structural integrity of large behavioral populations, demonstrating its effectiveness in detecting network…

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cs.CRRecentMar 26, 2026

Understanding AI Methods for Intrusion Detection and Cryptographic Leakage

Reza Zilouchian, Michael Chavez, Fernando Koch

The paper evaluates AI's effectiveness in detecting network intrusions and cryptographic side-channel leakage, finding high accuracy in stable environments but performance degradation with novel traff…

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