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Accurate 6D object pose estimation is an important task for a variety of robotic applications such as grasping or localization. It is a challenging task due to object symmetries, clutter and occlusion, but it becomes more challenging when…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Thomas Jantos , Mohamed Amin Hamdad , Wolfgang Granig , Stephan Weiss , Jan Steinbrener

Social media contains useful information about people and the society that could help advance research in many different areas (e.g. by applying opinion mining, emotion/sentiment analysis, and statistical analysis) such as business and…

Computation and Language · Computer Science 2022-05-16 Zahra Movahedi Nia , Ali Ahmadi , Bruce Mellado , Jianhong Wu , James Orbinski , Ali Agary , Jude Dzevela Kong

Spatial representations that capture both structural and semantic characteristics of urban environments are essential for urban modeling. Traditional spatial embeddings often prioritize spatial proximity while underutilizing fine-grained…

Computational Engineering, Finance, and Science · Computer Science 2025-06-04 Junyuan Liu , Xinglei Wang , Tao Cheng

A common need for artificial intelligence models in the broader geoscience is to represent and encode various types of spatial data, such as points (e.g., points of interest), polylines (e.g., trajectories), polygons (e.g., administrative…

Machine Learning · Computer Science 2022-03-14 Gengchen Mai , Krzysztof Janowicz , Yingjie Hu , Song Gao , Bo Yan , Rui Zhu , Ling Cai , Ni Lao

Human mobility prediction is a core functionality in many location-based services and applications. However, due to the sparsity of mobility data, it is not an easy task to predict future POIs (place-of-interests) that are going to be…

Machine Learning · Computer Science 2021-10-05 Hao Xue , Flora D. Salim , Yongli Ren , Nuria Oliver

This study introduces a novel approach to terrain feature classification by incorporating spatial point pattern statistics into deep learning models. Inspired by the concept of location encoding, which aims to capture location…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Sizhe Wang , Wenwen Li

IP Geolocation is a key enabler for the Future Internet to provide geographical location information for application services. For example, this data is used by Content Delivery Networks to assign users to mirror servers, which are close…

Networking and Internet Architecture · Computer Science 2020-04-06 Peter Hillmann , Lars Stiemert , Gabi Dreo , Oliver Rose

Mesh denoising, aimed at removing noise from input meshes while preserving their feature structures, is a practical yet challenging task. Despite the remarkable progress in learning-based mesh denoising methodologies in recent years, their…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Wenbo Zhao , Xianming Liu , Deming Zhai , Junjun Jiang , Xiangyang Ji

The impact of social media and its growing association with the sharing of ideas and propagation of messages remains vital in everyday communication. Twitter is one effective platform for the dissemination of news and stories about recent…

Information Retrieval · Computer Science 2017-02-12 Oluwaseun Ajao , Deepak P , Jun Hong

The recommendation of points of interest (POIs) is essential in location-based social networks. It makes it easier for users and locations to share information. Recently, researchers tend to recommend POIs by treating them as large-scale…

Information Retrieval · Computer Science 2022-02-18 Syed Raza Bashir , Vojislav Misic

Urban forecasting has increasingly benefited from high-dimensional spatial data through two primary approaches: graph-based methods that rely on predefined spatial structures, and region-based methods that focus on learning expressive urban…

Artificial Intelligence · Computer Science 2025-06-18 Yuhao Jia , Zile Wu , Shengao Yi , Yifei Sun , Xiao Huang

Online social networks contain a constantly increasing amount of images - most of them focusing on people. Due to cultural and climate factors, fashion trends and physical appearance of individuals differ from city to city. In this paper we…

Computer Vision and Pattern Recognition · Computer Science 2018-02-01 Kaili Wang , Yu-Hui Huang , Jose Oramas , Luc Van Gool , Tinne Tuytelaars

Human pose estimation (HPE) usually requires large-scale training data to reach high performance. However, it is rather time-consuming to collect high-quality and fine-grained annotations for human body. To alleviate this issue, we revisit…

Computer Vision and Pattern Recognition · Computer Science 2022-05-26 Xixia Xu , Yingguo Gao , Ke Yan , Xue Lin , Qi Zou

Transformers for time series forecasting mainly model time series from limited or fixed scales, making it challenging to capture different characteristics spanning various scales. We propose Pathformer, a multi-scale Transformer with…

Machine Learning · Computer Science 2024-09-17 Peng Chen , Yingying Zhang , Yunyao Cheng , Yang Shu , Yihang Wang , Qingsong Wen , Bin Yang , Chenjuan Guo

Recent progress in geospatial foundation models highlights the importance of learning general-purpose representations for real-world locations, particularly points-of-interest (POIs) where human activity concentrates. Existing approaches,…

Machine Learning · Computer Science 2026-03-06 Maria Despoina Siampou , Shushman Choudhury , Shang-Ling Hsu , Neha Arora , Cyrus Shahabi

Next-step location prediction plays a pivotal role in modeling human mobility, underpinning applications from personalized navigation to strategic urban planning. However, approaches that assume a closed world - restricting choices to a…

Artificial Intelligence · Computer Science 2025-08-05 Zhehong Ren , Tianluo Zhang , Yiheng Lu , Yushen Liang , Promethee Spathis

Predicting trajectories of pedestrians based on goal information in highly interactive scenes is a crucial step toward Intelligent Transportation Systems and Autonomous Driving. The challenges of this task come from two key sources: (1)…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Weicheng Zhang , Hao Cheng , Fatema T. Johora , Monika Sester

Local feature matching between images remains a challenging task, especially in the presence of significant appearance variations, e.g., extreme viewpoint changes. In this work, we propose DeepMatcher, a deep Transformer-based network built…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Tao Xie , Kun Dai , Ke Wang , Ruifeng Li , Lijun Zhao

Next Point-of-Interest (POI) recommendation plays a crucial role in urban mobility applications. Recently, POI recommendation models based on Graph Neural Networks (GNN) have been extensively studied and achieved, however, the effective…

The vast amount of geo-tagged social images has attracted great attention in research of predicting location using the plentiful content of images, such as visual content and textual description. Most of the existing researches use the…

Information Retrieval · Computer Science 2015-05-18 Xiaoming Zhang , Zhoujun Li , Senzhang Wang , Yang Yang , Xueqiang Lv