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相关论文: Towards Practicable Sequential Shift Detectors

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We investigate if the random feature selection approach proposed in [1] to improve the robustness of forensic detectors to targeted attacks, can be extended to detectors based on deep learning features. In particular, we study the…

密码学与安全 · 计算机科学 2019-12-30 Mauro Barni , Ehsan Nowroozi , Benedetta Tondi , Bowen Zhang

DETR has been recently proposed to eliminate the need for many hand-designed components in object detection while demonstrating good performance. However, it suffers from slow convergence and limited feature spatial resolution, due to the…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Xizhou Zhu , Weijie Su , Lewei Lu , Bin Li , Xiaogang Wang , Jifeng Dai

In this paper, we investigate the multi-variate sequence classification problem from a multi-instance learning perspective. Real-world sequential data commonly show discriminative patterns only at specific time periods. For instance, we can…

机器学习 · 计算机科学 2017-12-21 Xiaowei Jia , Ankush Khandelwal , Anuj Karpatne , Vipin Kumar

Distribution shift is a common situation in machine learning tasks, where the data used for training a model is different from the data the model is applied to in the real world. This issue arises across multiple technical settings: from…

机器学习 · 计算机科学 2024-05-24 Nicolas Acevedo , Carmen Cortez , Chris Brooks , Rene Kizilcec , Renzhe Yu

Transfer learning can be seen as a data- and compute-efficient alternative to training models from scratch. The emergence of rich model repositories, such as TensorFlow Hub, enables practitioners and researchers to unleash the potential of…

机器学习 · 计算机科学 2022-09-29 Cedric Renggli , Xiaozhe Yao , Luka Kolar , Luka Rimanic , Ana Klimovic , Ce Zhang

We consider cooperative spectrum sensing for cognitive radios. We develop an energy efficient detector with low detection delay using sequential hypothesis testing. Sequential Probability Ratio Test (SPRT) is used at both the local nodes…

信息论 · 计算机科学 2012-11-27 Jithin K S , Vinod Sharma , Raghav Gopalarathnam

In the multisensor sequential change detection problem, a disruption occurs in an environment monitored by multiple sensors. This disruption induces a change in the observations of an unknown subset of sensors. In the Byzantine version of…

统计理论 · 数学 2017-08-25 Georgios Fellouris , Erhan Bayraktar , Lifeng Lai

When users can benefit from certain predictive outcomes, they may be prone to act to achieve those outcome, e.g., by strategically modifying their features. The goal in strategic classification is therefore to train predictive models that…

机器学习 · 计算机科学 2023-06-12 Guy Horowitz , Nir Rosenfeld

Autonomous and semi-autonomous systems are using deep learning models to improve decision-making. However, deep classifiers can be overly confident in their incorrect predictions, a major issue especially in safety-critical domains. The…

机器学习 · 计算机科学 2024-12-05 Murat Sensoy , Lance M. Kaplan , Simon Julier , Maryam Saleki , Federico Cerutti

ML models deployed in production often have to face unknown domain changes, fundamentally different from their training settings. Performance prediction models carry out the crucial task of measuring the impact of these changes on model…

机器学习 · 计算机科学 2022-06-23 Simona Maggio , Victor Bouvier , Léo Dreyfus-Schmidt

Concept drift refers to the change of data distributions over time. While drift poses a challenge for learning models, requiring their continual adaption, it is also relevant in system monitoring to detect malfunctions, system failures, and…

机器学习 · 计算机科学 2025-02-07 Fabian Hinder , Valerie Vaquet , Barbara Hammer

Network structure evolves with time in the real world, and the discovery of changing communities in dynamic networks is an important research topic that poses challenging tasks. Most existing methods assume that no significant change in the…

神经与进化计算 · 计算机科学 2022-11-29 Huixin Ma , Kai Wu , Handing Wang , Jing Liu

Machine learning is used for inference and decision making in wearable sensor systems. However, recent studies have found that machine learning algorithms are easily fooled by the addition of adversarial perturbations to their inputs. What…

机器学习 · 计算机科学 2021-07-16 Ramesh Kumar Sah , Hassan Ghasemzadeh

Detection of adversarial examples has been a hot topic in the last years due to its importance for safely deploying machine learning algorithms in critical applications. However, the detection methods are generally validated by assuming a…

计算机视觉与模式识别 · 计算机科学 2022-07-01 Federica Granese , Marine Picot , Marco Romanelli , Francisco Messina , Pablo Piantanida

Leakages are a major risk in water distribution networks as they cause water loss and increase contamination risks. Leakage detection is a difficult task due to the complex dynamics of water distribution networks. In particular, small…

机器学习 · 计算机科学 2024-01-04 Valerie Vaquet , Fabian Hinder , Barbara Hammer

Covariate shift, a widely used assumption in tackling {\it distributional shift} (when training and test distributions differ), focuses on scenarios where the distribution of the labels conditioned on the feature vector is the same, but the…

机器学习 · 计算机科学 2025-02-24 Deeksha Adil , Jarosław Błasiok

Sequence classification is the task of predicting a class label given a sequence of observations. In many applications such as healthcare monitoring or intrusion detection, early classification is crucial to prompt intervention. In this…

机器学习 · 计算机科学 2020-10-07 Maayan Shvo , Andrew C. Li , Rodrigo Toro Icarte , Sheila A. McIlraith

Consider a large number of detectors each generating a data stream. The task is to detect online, distribution changes in a small fraction of the data streams. Previous approaches to this problem include the use of mixture likelihood ratios…

统计理论 · 数学 2016-01-20 Hock Peng Chan

Distribution shifts introduce uncertainty that undermines the robustness and generalization capabilities of machine learning models. While conventional wisdom suggests that learning causal-invariant representations enhances robustness to…

机器学习 · 计算机科学 2025-05-28 Abbavaram Gowtham Reddy , Celia Rubio-Madrigal , Rebekka Burkholz , Krikamol Muandet

As next-generation networks materialize, increasing levels of intelligence are required. Federated Learning has been identified as a key enabling technology of intelligent and distributed networks; however, it is prone to concept drift as…

机器学习 · 计算机科学 2022-02-07 Dimitrios Michael Manias , Ibrahim Shaer , Li Yang , Abdallah Shami