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Video anomaly detection has proved to be a challenging task owing to its unsupervised training procedure and high spatio-temporal complexity existing in real-world scenarios. In the absence of anomalous training samples, state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Masoud Pourreza , Mohammadreza Salehi , Mohammad Sabokrou

Dynamic and temporal graphs are rich data structures that are used to model complex relationships between entities over time. In particular, anomaly detection in temporal graphs is crucial for many real world applications such as intrusion…

Machine Learning · Computer Science 2020-07-03 Shenyang Huang , Yasmeen Hitti , Guillaume Rabusseau , Reihaneh Rabbany

The largest strength of contention-based MAC protocols is simultaneously the largest weakness of their scheduled counterparts: the ability to adapt to changes in network conditions. For scheduling to be competitive in mobile wireless…

Networking and Internet Architecture · Computer Science 2016-11-17 Jonathan Lutz , Charles J. Colbourn , Violet R. Syrotiuk

Clinical AI systems frequently suffer performance decay post-deployment due to temporal data shifts, such as evolving populations, diagnostic coding updates (e.g., ICD-9 to ICD-10), and systemic shocks like the COVID-19 pandemic. Addressing…

Applications · Statistics 2026-01-22 Xin Xiong , Zijian Guo , Haobo Zhu , Chuan Hong , Jordan W Smoller , Tianxi Cai , Molei Liu

Predicting road traffic speed is a challenging task due to different types of roads, abrupt speed change and spatial dependencies between roads; it requires the modeling of dynamically changing spatial dependencies among roads and temporal…

Machine Learning · Computer Science 2020-10-21 Cheonbok Park , Chunggi Lee , Hyojin Bahng , Yunwon Tae , Kihwan Kim , Seungmin Jin , Sungahn Ko , Jaegul Choo

Temporal action segmentation (TAS) demands dense temporal supervision, yet most of the annotation cost in untrimmed videos is spent identifying and refining action transitions, where segmentation errors concentrate and small temporal shifts…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Halil Ismail Helvaci , Sen-ching Samson Cheung

This work presents ATLAS, an LLM-driven framework that bridges standardized threat modeling and property-based formal verification for System-on-Chip (SoC) security. Starting from vulnerability knowledge bases such as Common Weakness…

Cryptography and Security · Computer Science 2026-04-24 Ishraq Tashdid , Kimia Tasnia , Alexander Garcia , Jonathan Valamehr , Sazadur Rahman

Denial-of-Service (DoS) attacks remain a critical threat to network security, disrupting services and causing significant economic losses. Traditional detection methods, including statistical and rule-based models, struggle to adapt to…

This paper presents our Facial Action Units (AUs) detection submission to the fifth Affective Behavior Analysis in-the-wild Competition (ABAW). Our approach consists of three main modules: (i) a pre-trained facial representation encoder…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Zihan Wang , Siyang Song , Cheng Luo , Yuzhi Zhou , Shiling Wu , Weicheng Xie , Linlin Shen

Human mobility trajectories are widely studied in public health and social science, where different demographic groups exhibit significantly different mobility patterns. However, existing trajectory generation models rarely capture this…

Machine Learning · Computer Science 2026-03-04 Jessie Z. Li , Zhiqing Hong , Toru Shirakawa , Serina Chang

Traffic forecasting is one canonical example of spatial-temporal learning task in Intelligent Traffic System. Existing approaches capture spatial dependency with a pre-determined matrix in graph convolution neural operators. However, the…

Machine Learning · Computer Science 2022-06-08 Chen Weikang , Li Yawen , Xue Zhe , Li Ang , Wu Guobin

We study the problem of reducing test-time acquisition costs in classification systems. Our goal is to learn decision rules that adaptively select sensors for each example as necessary to make a confident prediction. We model our system as…

Machine Learning · Statistics 2015-10-27 Joseph Wang , Kirill Trapeznikov , Venkatesh Saligrama

Guaranteeing the security of transactional systems is a crucial priority of all institutions that process transactions, in order to protect their businesses against cyberattacks and fraudulent attempts. Adversarial attacks are novel…

Cryptography and Security · Computer Science 2021-01-21 Francesco Cartella , Orlando Anunciacao , Yuki Funabiki , Daisuke Yamaguchi , Toru Akishita , Olivier Elshocht

Money laundering has become one of the most relevant criminal activities in modern societies, as it causes massive financial losses for governments, banks and other institutions. Detecting such activities is among the top priorities when it…

The integration of large language models (LLMs) with external tools has significantly expanded the capabilities of AI agents. However, as the diversity of both LLMs and tools increases, selecting the optimal model-tool combination becomes a…

Computation and Language · Computer Science 2026-01-08 Jinyang Wu , Guocheng Zhai , Ruihan Jin , Jiahao Yuan , Yuhao Shen , Shuai Zhang , Zhengqi Wen , Jianhua Tao

Industrial Control Systems (ICS) underpin critical infrastructure and face growing cyber-physical threats due to the convergence of operational technology and networked environments. While machine learning-based anomaly detection approaches…

Machine Learning · Computer Science 2026-03-12 Kosti Koistinen , Kirsi Hellsten , Joni Herttuainen , Kimmo K. Kaski

Detecting anomalies has become increasingly critical to the financial service industry. Anomalous events are often indicative of illegal activities such as fraud, identity theft, network intrusion, account takeover, and money laundering.…

Machine Learning · Computer Science 2021-01-06 Hongda Shen , Eren Kursun

Mobile network operators must monitor thousands of heterogeneous network elements across the radio access network and the packet core, each exposing high-dimensional KPI time series. The scale and cost of incident labelling make supervised…

Machine Learning · Computer Science 2026-05-04 Sara Malacarne , Eirik Hoel-Høiseth , Erlend Aune , David Zsolt Biró , Massimiliano Ruocco

In this paper, we present a direct adaptation strategy (ADAS), which aims to directly adapt a single model to multiple target domains in a semantic segmentation task without pretrained domain-specific models. To do so, we design a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Seunghun Lee , Wonhyeok Choi , Changjae Kim , Minwoo Choi , Sunghoon Im

Node attribute, a type of crucial information for graph analysis, may be partially or completely missing for certain nodes in real world applications. Restoring the missing attributes is expected to benefit downstream graph learning. Few…

Artificial Intelligence · Computer Science 2025-01-16 Benyuan Liu , Xu Chen , Yanfeng Wang , Ya Zhang , Zhi Cao , Ivor Tsang