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Trajectory optimization depends heavily on initialization. In particular, sampling-based approaches are highly sensitive to initial solutions, and limited exploration frequently leads them to converge to local minima in complex…

Robotics · Computer Science 2026-04-15 O. Goktug Poyrazoglu , Yukang Cao , Rahul Moorthy , Volkan Isler

Profiling cellular phenotypes from microscopic imaging can provide meaningful biological information resulting from various factors affecting the cells. One motivating application is drug development: morphological cell features can be…

Machine Learning · Statistics 2019-06-19 Gil Tabak , Minjie Fan , Samuel J. Yang , Stephan Hoyer , Geoff Davis

Single-cell RNA sequencing provides insights into gene expression at single-cell resolution, yet inferring temporal processes from these static snapshot measurements remains a fundamental challenge. Current approaches utilizing neural…

Machine Learning · Computer Science 2026-05-21 Mehmet Yigit Balik , Harri Lähdesmäki

We seek a generalization of regression and principle component analysis (PCA) in a metric space where data points are distributions metrized by the Wasserstein metric. We recast these analyses as multimarginal optimal transport problems.…

Optimization and Control · Mathematics 2020-04-20 Amirhossein Karimi , Luigia Ripani , Tryphon T. Georgiou

We propose a novel dynamic image reconstruction method from PET listmode data that could be particularly suited to tracking single or small numbers of cells. In contrast to conventional PET reconstruction our method combines the information…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 Bernhard Schmitzer , Klaus P. Schäfers , Benedikt Wirth

Various mobile devices have been used to collect, store and transmit tremendous trajectory data, and it is known that raw trajectory data seriously wastes the storage, network band and computing resource. To attack this issue, one-pass line…

Databases · Computer Science 2018-01-17 Xuelian Lin , Jiahao Jiang , Shuai Ma , Yimeng Zuo , Chunming Hu

Comparing graphs by means of optimal transport has recently gained significant attention, as the distances induced by optimal transport provide both a principled metric between graphs as well as an interpretable description of the…

Machine Learning · Computer Science 2024-03-26 James S. Nagai , Ivan G. Costa , Michael T. Schaub

Persistence diagrams (PD)s play a central role in topological data analysis. This analysis requires computing distances among such diagrams such as the $1$-Wasserstein distance. Accurate computation of these PD distances for large data sets…

Computational Geometry · Computer Science 2025-05-13 Tamal K. Dey , Simon Zhang

In real-world applications, GPS trajectories often suffer from low sampling rates, with large and irregular intervals between consecutive GPS points. This sparse characteristic presents challenges for their direct use in GPS-based systems.…

Machine Learning · Computer Science 2025-05-21 Tian Sun , Yuqi Chen , Baihua Zheng , Weiwei Sun

In machine learning and computer vision, optimal transport has had significant success in learning generative models and defining metric distances between structured and stochastic data objects, that can be cast as probability measures. The…

Machine Learning · Computer Science 2020-10-20 Anton Mallasto , Markus Heinonen , Samuel Kaski

A communication network can be modeled as a directed connected graph with edge weights that characterize performance metrics such as loss and delay. Network tomography aims to infer these edge weights from their pathwise versions measured…

Optimization and Control · Mathematics 2019-08-12 Mahmood Ettehad , Nick Duffield , Gregory Berkolaiko

Single-cell spatial transcriptomics (ST) offers a unique approach to measuring gene expression profiles and spatial cell locations simultaneously. However, most existing ST methods assume that cells in closer spatial proximity exhibit more…

Genomics · Quantitative Biology 2025-06-10 Xiongtao Xiao , Xiaofeng Chen , Feiyan Jiang , Songming Zhang , Wenming Cao , Cheng Tan , Zhangyang Gao , Zhongshan Li

Medical images acquired from standardized protocols show consistent macroscopic or microscopic anatomical structures, and these structures consist of composable/decomposable organs and tissues, but existing self-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Ziyu Zhou , Haozhe Luo , Mohammad Reza Hosseinzadeh Taher , Jiaxuan Pang , Xiaowei Ding , Michael Gotway , Jianming Liang

We consider a category-level perception problem, where one is given 2D or 3D sensor data picturing an object of a given category (e.g., a car), and has to reconstruct the 3D pose and shape of the object despite intra-class variability…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Jingnan Shi , Heng Yang , Luca Carlone

With the advance of experimental techniques such as time-lapse fluorescence microscopy, the availability of single-cell trajectory data has vastly increased, and so has the demand for computational methods suitable for parameter inference…

Quantitative Methods · Quantitative Biology 2016-07-06 Irena Kuzmanovska , Andreas Milias-Argeitis , Christoph Zechner , Mustafa Khammash

This paper introduces the Gene Mover's Distance, a measure of similarity between a pair of cells based on their gene expression profiles obtained via single-cell RNA sequencing. The underlying idea of the proposed distance is to interpret…

Genomics · Quantitative Biology 2021-03-16 Riccardo Bellazzi , Andrea Codegoni , Stefano Gualandi , Giovanna Nicora , Eleonora Vercesi

Single-cell RNA sequencing (scRNA-seq) profiles large numbers of cells but loses spatial context, whereas spatial transcriptomics (ST) preserves partial spatial structure at lower resolution. Most existing integration methods either…

Machine Learning · Computer Science 2026-05-28 Ehtesamul Azim , Muhtasim Noor Alif , Tae Hyun Hwang , Yanjie Fu , Wei Zhang

Modern satellite systems face increasing operational risks from jamming, cyberattacks, and electromagnetic disruptions in contested space environments. Traditional redundancy strategies often fall short against such dynamic and multi-vector…

Systems and Control · Electrical Eng. & Systems 2026-04-07 Anouar Boumeftah , Sarah McKenzie-Picot , Peter Klimas , Gunes Karabulut Kurt

Optimal transport with quadratic cost provides a geometric framework for steering an ensemble, modeled by a probability law, with minimal effort. Yet ambient-space formulations become unwieldy in high dimensions, and sensing or actuation in…

Optimization and Control · Mathematics 2026-04-28 Kaito Ito , Anqi Dong

This paper presents TRACE, a tool to analyze the quality of 2D embeddings generated through dimensionality reduction techniques. Dimensionality reduction methods often prioritize preserving either local neighborhoods or global distances,…

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