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AI Safety is a major concern in many deep learning applications such as autonomous driving. Given a trained deep learning model, an important natural problem is how to reliably verify the model's prediction. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Tong Che , Xiaofeng Liu , Site Li , Yubin Ge , Ruixiang Zhang , Caiming Xiong , Yoshua Bengio

In this work, we conducted a study on building an automated testing system for deep learning systems based on differential behavior criteria. The automated testing goals were achieved by jointly optimizing two objective functions:…

机器学习 · 计算机科学 2020-01-01 Yuan Gao , Yiqiang Han

Missing data imputation poses a paramount challenge when dealing with graph data. Prior works typically are based on feature propagation or graph autoencoders to address this issue. However, these methods usually encounter the…

机器学习 · 计算机科学 2024-04-29 Xindi Zheng , Yuwei Wu , Yu Pan , Wanyu Lin , Lei Ma , Jianjun Zhao

Few-shot learning is a challenging task that aims at training a classifier for unseen classes with only a few training examples. The main difficulty of few-shot learning lies in the lack of intra-class diversity within insufficient training…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Mengting Chen , Yuxin Fang , Xinggang Wang , Heng Luo , Yifeng Geng , Xinyu Zhang , Chang Huang , Wenyu Liu , Bo Wang

We study dynamic graph algorithms in the Massively Parallel Computation model, which was inspired by practical data processing systems. Our goal is to provide algorithms that can efficiently handle large batches of edge insertions and…

数据结构与算法 · 计算机科学 2021-01-12 Krzysztof Nowicki , Krzysztof Onak

Generative modeling of time series is a central challenge in time series analysis, particularly under data-scarce conditions. Despite recent advances in generative modeling, a comprehensive understanding of how state-of-the-art generative…

机器学习 · 计算机科学 2025-05-28 Tal Gonen , Itai Pemper , Ilan Naiman , Nimrod Berman , Omri Azencot

In this paper, we propose a novel distributed data-driven optimization scheme. In detail, we focus on the so-called aggregative framework, a scenario in which a set of agents aim to cooperatively minimize the sum of local costs, each…

最优化与控制 · 数学 2026-01-27 Riccardo Brumali , Guido Carnevale , Giuseppe Notarstefano

Gradient tracking (GT) is an algorithm designed for solving decentralized optimization problems over a network (such as training a machine learning model). A key feature of GT is a tracking mechanism that allows to overcome data…

最优化与控制 · 数学 2023-01-05 Yue Liu , Tao Lin , Anastasia Koloskova , Sebastian U. Stich

When solving inverse problems in geophysical imaging, deep generative models (DGMs) may be used to enforce the solution to display highly structured spatial patterns which are supported by independent information (e.g. the geological…

地球物理 · 物理学 2021-04-28 Jorge Lopez-Alvis , Eric Laloy , Frédéric Nguyen , Thomas Hermans

This paper proposes a decentralized approach for solving the problem of moving a swarm of agents into a desired formation. We propose a decentralized assignment algorithm which prescribes goals to each agent using only local information.…

最优化与控制 · 数学 2020-05-06 Logan Beaver , Andreas Malikopoulos

Evolutionary algorithms have been widely applied for solving dynamic constrained optimization problems (DCOPs) as a common area of research in evolutionary optimization. Current benchmarks proposed for testing these problems in the…

神经与进化计算 · 计算机科学 2019-07-10 Maryam Hasani-Shoreh , María-Yaneli Ameca-Alducin , Wilson Blaikie , Frank Neumann , Marc Schoenauer

Current Generative Adversarial Network (GAN)-based approaches for time series generation face challenges such as suboptimal convergence, information loss in embedding spaces, and instability. To overcome these challenges, we introduce an…

机器学习 · 计算机科学 2024-10-29 MohammadReza EskandariNasab , Shah Muhammad Hamdi , Soukaina Filali Boubrahimi

We combine two popular optimization approaches to derive learning algorithms for generative models: variational optimization and evolutionary algorithms. The combination is realized for generative models with discrete latents by using…

机器学习 · 统计学 2022-02-07 Jakob Drefs , Enrico Guiraud , Jörg Lücke

Differential dynamic programming (DDP) is a widely used and powerful trajectory optimization technique, however, due to its internal structure, it is not exempt from local minima. In this paper, we present Differential Dynamic Programming…

机器人学 · 计算机科学 2023-01-19 Aleksander Gamayunov , Aleksey Postnikov , Gonzalo Ferrer

Although optimization is the longstanding algorithmic backbone of machine learning, new models still require the time-consuming implementation of new solvers. As a result, there are thousands of implementations of optimization algorithms…

机器学习 · 计算机科学 2019-06-03 Sören Laue , Matthias Mitterreiter , Joachim Giesen

Deep learning models have demonstrated outstanding performance in several problems, but their training process tends to require immense amounts of computational and human resources for training and labeling, constraining the types of…

机器学习 · 计算机科学 2019-04-29 Toan Tran , Thanh-Toan Do , Ian Reid , Gustavo Carneiro

Ensemble weather forecasts based on multiple runs of numerical weather prediction models typically show systematic errors and require post-processing to obtain reliable forecasts. Accurately modeling multivariate dependencies is crucial in…

大气与海洋物理 · 物理学 2024-02-02 Jieyu Chen , Tim Janke , Florian Steinke , Sebastian Lerch

In this paper, we propose a Bayesian approach for multiscale problems with the availability of dynamic observational data. Our method selects important degrees of freedom probabilistically in a Generalized multiscale finite element method…

数值分析 · 数学 2018-06-18 Siu Wun Cheung , Nilabja Guha

Closed-loop simulation and scalable pre-training for autonomous driving require synthesizing free-viewpoint driving scenes. However, existing datasets and generative pipelines rarely provide consistent off-trajectory observations, limiting…

计算机视觉与模式识别 · 计算机科学 2025-12-05 Shijie Chen , Peixi Peng

The availability of data is limited in some fields, especially for object detection tasks, where it is necessary to have correctly labeled bounding boxes around each object. A notable example of such data scarcity is found in the domain of…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Matteo Paiano , Stefano Martina , Carlotta Giannelli , Filippo Caruso