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We propose a higher-order dimensionality reduction framework based on the Trace Ratio (TR) optimization problem. We establish conditions for existence and uniqueness of solutions and clarify the theoretical connection between the Trace…

Numerical Analysis · Mathematics 2025-11-25 Alaeddine Zahir , Franck Dufrenois , Khalide Jbilou , Ahmed Ratnani

The topological information is essential for studying the relationship between nodes in a network. Recently, Network Representation Learning (NRL), which projects a network into a low-dimensional vector space, has been shown their…

Social and Information Networks · Computer Science 2019-02-19 Guoji Fu , Chengbin Hou , Xin Yao

Bridging the past to the future, connecting agents both spatially and temporally, lies at the core of the trajectory prediction task. Despite great efforts, it remains challenging to explicitly learn and predict latencies, i.e., response…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Conghao Wong , Ziqian Zou , Beihao Xia , Xinge You

Accurate and robust trajectory prediction of neighboring agents is critical for autonomous vehicles traversing in complex scenes. Most methods proposed in recent years are deep learning-based due to their strength in encoding complex…

Robotics · Computer Science 2023-03-27 Yujun Jiao , Mingze Miao , Zhishuai Yin , Chunyuan Lei , Xu Zhu , Linzhen Nie , Bo Tao

In this paper, we aim to forecast a future trajectory distribution of a moving agent in the real world, given the social scene images and historical trajectories. Yet, it is a challenging task because the ground-truth distribution is…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Ke Guo , Wenxi Liu , Jia Pan

Self-supervised learning (SSL), as a newly emerging unsupervised representation learning paradigm, generally follows a two-stage learning pipeline: 1) learning invariant and discriminative representations with auto-annotation pretext(s),…

Machine Learning · Computer Science 2022-08-23 Jiayu Yao , Qingyuan Wu , Quan Feng , Songcan Chen

Designing efficient transit route networks is an NP-hard problem with exponentially large solution spaces that traditionally relies on manual planning processes. We present an end-to-end reinforcement learning (RL) framework based on graph…

Machine Learning · Computer Science 2025-12-24 Bibek Poudel , Weizi Li

In this paper, we investigate the suitability of state-of-the-art representation learning methods to the analysis of behavioral similarity of moving individuals, based on CDR trajectories. The core of the contribution is a novel…

Machine Learning · Computer Science 2020-09-14 Maria Luisa Damiani , Andrea Acquaviva , Fatima Hachem , Matteo Rossini

Mobility trajectories are essential for understanding urban dynamics and enhancing urban planning, yet access to such data is frequently hindered by privacy concerns. This research introduces a transformative framework for generating…

Trajectory planning is a core task in autonomous driving, requiring the prediction of safe and comfortable paths across diverse scenarios. Integrating Multi-modal Large Language Models (MLLMs) with Reinforcement Learning (RL) has shown…

Robotics · Computer Science 2026-02-02 Xidong Li , Mingyu Guo , Chenchao Xu , Bailin Li , Wenjing Zhu , Yangang Zou , Rui Chen , Zehuan Wang

Event-guided motion deblurring reconstructs sharp images using the high-temporal-resolution motion cues from event cameras. However, in real capture, thresholding-induced event under-reporting causes missing and fragmented motion cues,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Yihong Leng , Siming Zheng , Jinwei Chen , Bo Li , Jiaojiao Li , Peng-Tao Jiang

A `trajectory' refers to a trace generated by a moving object in geographical spaces, usually represented by of a series of chronologically ordered points, where each point consists of a geo-spatial coordinate set and a timestamp. Rapid…

Machine Learning · Computer Science 2021-11-16 Seongjin Choi

Vehicle trajectory prediction is essential for enabling safety-critical intelligent transportation systems (ITS) applications used in management and operations. While there have been some promising advances in the field, there is a need for…

Machine Learning · Computer Science 2022-05-27 Vinit Katariya , Mohammadreza Baharani , Nichole Morris , Omidreza Shoghli , Hamed Tabkhi

Trajectory prediction is a critical part of many AI applications, for example, the safe operation of autonomous vehicles. However, current methods are prone to making inconsistent and physically unrealistic predictions. We leverage insights…

Machine Learning · Computer Science 2021-03-19 Robin Walters , Jinxi Li , Rose Yu

Multimodality Representation Learning, as a technique of learning to embed information from different modalities and their correlations, has achieved remarkable success on a variety of applications, such as Visual Question Answering (VQA),…

Artificial Intelligence · Computer Science 2024-03-04 Muhammad Arslan Manzoor , Sarah Albarri , Ziting Xian , Zaiqiao Meng , Preslav Nakov , Shangsong Liang

Mobile edge computing (MEC) is a promising technique to improve the computational capacity of smart devices (SDs) in Internet of Things (IoT). However, the performance of MEC is restricted due to its fixed location and limited service…

Networking and Internet Architecture · Computer Science 2025-08-04 Saichao Liu , Geng Sun , Chuang Zhang , Xuejie Liu , Jiacheng Wang , Changyuan Zhao , Dusit Niyato

Most of the existing multi-relational network embedding methods, e.g., TransE, are formulated to preserve pair-wise connectivity structures in the networks. With the observations that significant triangular connectivity structures and…

Social and Information Networks · Computer Science 2018-06-11 Xin Li , Huiting Hong , Lin Liu , William K. Cheung

In recent times, an increasing number of researchers have been devoted to utilizing deep neural networks for end-to-end flight navigation. This approach has gained traction due to its ability to bridge the gap between perception and…

Robotics · Computer Science 2024-10-11 Zhichao Han , Long Xu , Liuao Pei , Fei Gao

Pursuit-evasion (PE) problem is a critical challenge in multi-robot systems (MRS). While reinforcement learning (RL) has shown its promise in addressing PE tasks, research has primarily focused on single-target pursuit, with limited…

Robotics · Computer Science 2025-08-28 Heng Zhang , Guoxiang Zhao , Xiaoqiang Ren

In reinforcement learning-based (RL-based) traffic signal control (TSC), decisions on the signal timing are made based on the available information on vehicles at a road intersection. This forms the state representation for the RL…

Systems and Control · Electrical Eng. & Systems 2024-11-13 Lawrence Francis , Blessed Guda , Ahmed Biyabani