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Finding an object of a specific class in an unseen environment remains an unsolved navigation problem. Hence, we propose a hierarchical learning-based method for object navigation. The top-level is capable of high-level planning, and…

Artificial Intelligence · Computer Science 2022-11-17 Matthias Hutsebaut-Buysse , Kevin Mets , Tom De Schepper , Steven Latré

Autonomous vehicles such as the Mars rovers currently lead the vanguard of surface exploration on extraterrestrial planets and moons. In order to accelerate the pace of exploration and science objectives, it is critical to plan safe and…

Robotics · Computer Science 2026-03-19 Adam Dai , Shubh Gupta , Grace Gao

In this work, we present a method for landmark retrieval that utilizes global and local features. A Siamese network is used for global feature extraction and metric learning, which gives an initial ranking of the landmark search. We utilize…

Information Retrieval · Computer Science 2022-08-09 Tianyi Hu , Monika Kwiatkowski , Simon Matern , Olaf Hellwich

We implement and experimentally evaluate landmark-based oracles for min-cost paths in large-scale time-dependent road networks. We exploit parallelism and lossless compression, combined with a novel travel-time approximation technique, to…

Data Structures and Algorithms · Computer Science 2015-11-30 Spyros Kontogiannis , George Michalopoulos , Georgia Papastavrou , Andreas Paraskevopoulos , Dorothea Wagner , Christos Zaroliagis

Mapping and localization are two essential tasks for mobile robots in real-world applications. However, largescale and dynamic scenes challenge the accuracy and robustness of most current mature solutions. This situation becomes even worse…

Robotics · Computer Science 2022-01-19 Fan Wang , Chaofan Zhang , Fulin Tang , Hongkui Jiang , Yihong Wu , Yong Liu

Recent results suggest that splitting topological navigation into robot-independent and robot-specific components improves navigation performance by enabling the robot-independent part to be trained with data collected by robots of…

Robotics · Computer Science 2024-03-01 Lauri Suomela , Jussi Kalliola , Harry Edelman , Joni-Kristian Kämäräinen

This paper proposes a Guidance, Navigation, and Control (GNC) architecture for planetary rovers targeting the conditions of upcoming Mars exploration missions such as Mars 2020 and the Sample Fetching Rover (SFR). The navigation…

Robotics · Computer Science 2021-09-10 Martin Azkarate , Levin Gerdes , Luc Joudrier , Carlos J. Pérez-del-Pulgar

Navigating dynamic and unstructured environments poses significant challenges for autonomous robots, particularly due to the uncertainty introduced by occluded areas. Conventional sensing methods often fail to detect obstacles hidden behind…

Robotics · Computer Science 2024-12-31 Sithija Ranaraja

This paper presents a novel approach for robot navigation in environments containing deformable obstacles. By integrating Learning from Demonstration (LfD) with Dynamical Systems (DS), we enable adaptive and efficient navigation in complex…

In this article, we propose a novel navigation framework that leverages a two layered graph representation of the environment for efficient large-scale exploration, while it integrates a novel uncertainty awareness scheme to handle dynamic…

Robotics · Computer Science 2024-02-07 Akash Patel , Mario A V Saucedo , Christoforos Kanellakis , George Nikolakopoulos

When driving, people make decisions based on current traffic as well as their desired route. They have a mental map of known routes and are often able to navigate without needing directions. Current self-driving models improve their…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Iulia Paraicu , Marius Leordeanu

Two-tower models are a prevalent matching framework for recommendation, which have been widely deployed in industrial applications. The success of two-tower matching attributes to its efficiency in retrieval among a large number of items,…

Information Retrieval · Computer Science 2023-12-01 Liangcai Su , Fan Yan , Jieming Zhu , Xi Xiao , Haoyi Duan , Zhou Zhao , Zhenhua Dong , Ruiming Tang

Recent advances of foundation models (FMs) have made navigating mobile applications (apps) based on high-level goal instructions within reach, with significant industrial applications such as UI testing. While existing benchmarks evaluate…

Existing language-driven embodied navigation paradigms face challenges in functional buildings (FBs) with highly similar features, as they lack the ability to effectively utilize priori spatial knowledge. To tackle this issue, we propose a…

Robotics · Computer Science 2026-03-11 Jiang Gao , Xiangyu Dong , Haozhou Li , Haoran Zhao , Yaoming Zhou , Xiaoguang Ma

Many infrastructure-free indoor positioning systems rely on fine-grained location-dependent fingerprints to train models for localization. The site survey process to collect fingerprints is laborious and is considered one of the major…

Networking and Internet Architecture · Computer Science 2017-05-23 Chenhe Li , Qiang Xu , Zhe Gong , Rong Zheng

Socially compliant navigation is an integral part of safety features in Human-Robot Interaction. Traditional approaches to mobile navigation prioritize physical aspects, such as efficiency, but social behaviors gain traction as robots…

Robotics · Computer Science 2024-05-03 Yigit Yildirim , Mehmet Suzer , Emre Ugur

In real-world search, recommendation, and advertising systems, the multi-stage ranking architecture is commonly adopted. Such architecture usually consists of matching, pre-ranking, ranking, and re-ranking stages. In the pre-ranking stage,…

Information Retrieval · Computer Science 2021-05-18 Xu Ma , Pengjie Wang , Hui Zhao , Shaoguo Liu , Chuhan Zhao , Wei Lin , Kuang-Chih Lee , Jian Xu , Bo Zheng

We present CityHood, an interactive and explainable recommendation system that suggests cities and neighborhoods based on users' areas of interest. The system models user interests leveraging large-scale Google Places reviews enriched with…

Information Retrieval · Computer Science 2025-07-28 Gustavo H Santos , Myriam Delgado , Thiago H Silva

Understanding pedestrian route choice behavior in complex buildings is important to ensure pedestrian safety. Previous studies have mostly used traditional data collection methods and discrete choice modeling to understand the influence of…

Machine Learning · Computer Science 2023-08-08 Yan Feng , Panchamy Krishnakumari

This work proposes a novel hybrid approach for vision-only navigation of mobile robots, which combines advances of both deep learning approaches and classical model-based planning algorithms. Today, purely data-driven end-to-end models are…

Robotics · Computer Science 2025-07-29 Sergey Bakulin , Timur Akhtyamov , Denis Fatykhov , German Devchich , Gonzalo Ferrer