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Clustering techniques are very attractive for extracting and identifying patterns in datasets. However, their application to very large spatial datasets presents numerous challenges such as high-dimensionality data, heterogeneity, and high…

数据库 · 计算机科学 2018-02-27 Malika Bendechache , Nhien-An Le-Khac , M-Tahar Kechadi

The advances of modern localization techniques and the wide spread of mobile devices have provided us great opportunities to collect and mine human mobility trajectories. In this work, we focus on passively collected trajectories, which are…

计算几何 · 计算机科学 2022-04-22 Jiaxin Ding , Jie Gao , Steven Skiena

Microaggregation is a method to coarsen a dataset, by optimally clustering data points in groups of at least $k$ points, thereby providing a $k$-anonymity type disclosure guarantee for each point in the dataset. Previous algorithms for…

数据结构与算法 · 计算机科学 2024-01-05 Felix I. Stamm , Michael T. Schaub

Conventional air traffic control divides airspace into specific regions, creating a scaling bottleneck as traffic grows. Choosing how to partition airspace is not straightforward because grid size affects workload, handoff frequency, and…

分布式、并行与集群计算 · 计算机科学 2026-04-21 Aditya Dhodapkar , Avery Smidt , Aaron Verkleeren , Stacy Patterson , Carlos A. Varela

We study the general approach to accelerating the convergence of the most widely used solution method of Markov decision processes with the total expected discounted reward. Inspired by the monotone behavior of the contraction mappings in…

最优化与控制 · 数学 2008-03-28 Oleksandr Shlakhter , Chi-Guhn Lee , Dmitry Khmelev , Nasser Jaber

In this paper, we present a significant improvement of Quick Hypervolume algorithm, one of the state-of-the-art algorithms for calculating exact hypervolume of the space dominated by a set of d-dimensional points. This value is often used…

神经与进化计算 · 计算机科学 2017-08-14 Andrzej Jaszkiewicz

Methods tackling multi-object tracking need to estimate the number of targets in the sensing area as well as to estimate their continuous state. While the majority of existing methods focus on data association, precise state (3D pose)…

计算机视觉与模式识别 · 计算机科学 2019-10-11 Johannes Groß , Aljosa Osep , Bastian Leibe

Non-recurring traffic congestion is caused by temporary disruptions, such as accidents, sports games, adverse weather, etc. We use data related to real-time traffic speed, jam factors (a traffic congestion indicator), and events collected…

机器学习 · 计算机科学 2018-02-02 Fangzhou sun , Abhishek Dubey , Jules White

We developed a minimum-cost circulation framework for solving the global data association problem, which plays a key role in the tracking-by-detection paradigm of multi-object tracking. The global data association problem was extensively…

计算机视觉与模式识别 · 计算机科学 2020-02-12 Congchao Wang , Yizhi Wang , Guoqiang Yu

In this work, we developed an automatic convergence procedure for k-points and plane wave cut-off in density functional (DFT) calculations and applied it to more than 30000 materials. The computational framework for automatic convergence…

材料科学 · 物理学 2019-02-20 Kamal Choudhary , Francesca Tavazza

In mobile adhoc networks, congestion occurs with limited resources. The standard TCP congestion control mechanism is not able to handle the special properties of a shared wireless channel. TCP congestion control works very well on the…

网络与互联网体系结构 · 计算机科学 2014-01-21 Ashish Kumar Mourya , Niraj Singhal

Consolidation of loose packages into transport units is a fundamental activity offered by logistics service-providers. Moving the transport units instead of loose packages is faster (with one movement only, multiple packages are loaded…

最优化与控制 · 数学 2022-10-24 Enrico Angelelli , Claudia Archetti , Lorenzo Peirano

Joint optimization of scheduling and estimation policies is considered for a system with two sensors and two non-collocated estimators. Each sensor produces an independent and identically distributed sequence of random variables, and each…

系统与控制 · 电气工程与系统科学 2019-08-19 Marcos M. Vasconcelos , Mukul Gagrani , Ashutosh Nayyar , Urbashi Mitra

We consider a distribution logistics scenario where a shipping operator, managing a limited amount of resources, receives a stream of collection requests, issued by a set of customers along a booking time-horizon, that are referred to a…

最优化与控制 · 数学 2023-07-04 Giovanni Giallombardo , Francesca Guerriero , Giovanna Miglionico

Accurate traffic congestion classification requires models that jointly capture roadway scene context and non-stationary traffic motion, yet most prior work treats these requirements in isolation. Vision-based methods often depend on…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Eugene Kofi Okrah Denteh , Blessing Agyei Kyem , Joshua Kofi Asamoah , Armstrong Aboah

Most common Optimal Transport (OT) solvers are currently based on an approximation of underlying measures by discrete measures. However, it is sometimes relevant to work only with moments of measures instead of the measure itself, and many…

数值分析 · 数学 2022-12-05 Olga Mula , Anthony Nouy

The motion of picking up and placing an object in 3D space is full of subtle detail. Typically these motions are formed from the same constraints, optimizing for swiftness, energy efficiency, as well as physiological limits. Yet, even for…

计算机视觉与模式识别 · 计算机科学 2020-10-07 Connor Daly , Yuzuko Nakamura , Tobias Ritschel

In distributed machine learning, a central node outsources computationally expensive calculations to external worker nodes. The properties of optimization procedures like stochastic gradient descent (SGD) can be leveraged to mitigate the…

分布式、并行与集群计算 · 计算机科学 2023-04-19 Maximilian Egger , Serge Kas Hanna , Rawad Bitar

The problem of multimodal clustering arises whenever the data are gathered with several physically different sensors. Observations from different modalities are not necessarily aligned in the sense there there is no obvious way to associate…

机器学习 · 统计学 2020-12-10 Vasil Khalidov , Florence Forbes , Radu Horaud

Distributed Complex Event Processing (DCEP) is a commonly used paradigm to detect and act on situational changes of many applications, including the Internet of Things (IoT). DCEP achieves this using a simple specification of analytical…

分布式、并行与集群计算 · 计算机科学 2021-07-09 Manisha Luthra , Boris Koldehofe , Niels Danger , Pascal Weisenburger , Guido Salvaneschi , Ioannis Stavrakakis