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In this paper, we address the problem of personalized next Point-of-interest (POI) recommendation which has become an important and very challenging task for location-based social networks (LBSNs), but not well studied yet. With the…

社会与信息网络 · 计算机科学 2018-05-17 Jing He , Xin Li , Lejian Liao , Williamb K. Cheung

Sequential location recommendation plays a huge role in modern life, which can enhance user experience, bring more profit to businesses and assist in government administration. Although methods for location recommendation have evolved…

人工智能 · 计算机科学 2023-10-25 Xuan Luo , Mingqing Huang , Rui Lv , Hui Zhao

The social robot navigation is an open and challenging problem. In existing work, separate modules are used to capture spatial and temporal features, respectively. However, such methods lead to extra difficulties in improving the…

机器人学 · 计算机科学 2023-10-12 Haodong He , Hao Fu , Qiang Wang , Shuai Zhou , Wei Liu

We consider the general class of time-homogeneous stochastic dynamical systems, both discrete and continuous, and study the problem of learning a representation of the state that faithfully captures its dynamics. This is instrumental to…

机器学习 · 计算机科学 2024-03-15 Vladimir R. Kostic , Pietro Novelli , Riccardo Grazzi , Karim Lounici , Massimiliano Pontil

Correlated time series analysis plays an important role in many real-world industries. Learning an efficient representation of this large-scale data for further downstream tasks is necessary but challenging. In this paper, we propose a…

机器学习 · 计算机科学 2023-06-21 Luxuan Wang , Lei Bai , Ziyue Li , Rui Zhao , Fugee Tsung

Recently, pre-trained state space models have shown great potential for video classification, which sequentially compresses visual tokens in videos with linear complexity, thereby improving the processing efficiency of video data while…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Jiahuan Zhou , Kai Zhu , Zhenyu Cui , Zichen Liu , Xu Zou , Gang Hua

Understanding the movement patterns of objects (e.g., humans and vehicles) in a city is essential for many applications, including city planning and management. This paper proposes a method for predicting future city-wide crowd flows by…

机器学习 · 计算机科学 2023-10-05 Chung Park , Junui Hong , Cheonbok Park , Taesan Kim , Minsung Choi , Jaegul Choo

Indoor localization systems often fuse inertial odometry with map information via hand-defined methods to reduce odometry drift, but such methods are sensitive to noise and struggle to generalize across odometry sources. To address the…

机器人学 · 计算机科学 2022-11-15 Dennis Melamed , Karnik Ram , Vivek Roy , Kris Kitani

Our goal is to answer real-world tourism questions that seek Points-of-Interest (POI) recommendations. Such questions express various kinds of spatial and non-spatial constraints, necessitating a combination of textual and spatial…

人工智能 · 计算机科学 2021-06-08 Danish Contractor , Shashank Goel , Mausam , Parag Singla

This paper studies introducing viewpoint invariant feature representations in existing action recognition architecture. Despite significant progress in action recognition, efficiently handling geometric variations in large-scale datasets…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Jinhui Ye , Junwei Liang

Recent years have witnessed the increasing popularity of Location-based Social Network (LBSN) services, which provides unparalleled opportunities to build personalized Point-of-Interest (POI) recommender systems. Existing POI recommendation…

机器学习 · 计算机科学 2022-01-04 Dongbo Xi , Fuzhen Zhuang , Yanchi Liu , Hengshu Zhu , Pengpeng Zhao , Chang Tan , Qing He

The key of Human-Object Interaction(HOI) recognition is to infer the relationship between human and objects. Recently, the image's Human-Object Interaction(HOI) detection has made significant progress. However, there is still room for…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Hongsheng Li , Guangming Zhu , Wu Zhen , Lan Ni , Peiyi Shen , Liang Zhang , Ning Wang , Cong Hua

The non-Euclidean geometry of hyperbolic spaces has recently garnered considerable attention in the realm of representation learning. Current endeavors in hyperbolic representation largely presuppose that the underlying hierarchies can be…

机器学习 · 计算机科学 2023-06-16 Menglin Yang , Min Zhou , Rex Ying , Yankai Chen , Irwin King

Taking advantage of human pose data for understanding human activities has attracted much attention these days. However, state-of-the-art pose estimators struggle in obtaining high-quality 2D or 3D pose data due to occlusion, truncation and…

计算机视觉与模式识别 · 计算机科学 2020-11-12 Di Yang , Rui Dai , Yaohui Wang , Rupayan Mallick , Luca Minciullo , Gianpiero Francesca , Francois Bremond

We propose a new method for embedding graphs while preserving directed edge information. Learning such continuous-space vector representations (or embeddings) of nodes in a graph is an important first step for using network information…

机器学习 · 计算机科学 2017-09-15 Sami Abu-El-Haija , Bryan Perozzi , Rami Al-Rfou

Representation learning of geospatial locations remains a core challenge in achieving general geospatial intelligence, with increasingly diverging philosophies and techniques. While Earth observation paradigms excel at depicting locations…

人工智能 · 计算机科学 2026-01-28 Ya Wen , Jixuan Cai , Qiyao Ma , Linyan Li , Xinhua Chen , Chris Webster , Yulun Zhou

Effective user modeling requires distinguishing between short-term and long-term preference evolution. While item embeddings have become a key component of recommender systems, standard approaches like Item2Vec treat user histories as…

信息检索 · 计算机科学 2026-04-20 Rafael T. Sereicikas , Pedro R. Pires , Gregorio F. Azevedo , Tiago A. Almeida

User-generated data on social media contain rich information about who we are, what we like and how we make decisions. In this paper, we survey representative work on learning a concise latent user representation (a.k.a. user embedding)…

人工智能 · 计算机科学 2021-05-18 Fatema Hasan , Kevin S. Xu , James R. Foulds , Shimei Pan

Most recommender systems treat timestamps as numeric or cyclical values, overlooking real-world context such as holidays, events, and seasonal patterns. We propose a scalable framework that uses large language models (LLMs) to generate…

Classical sequential recommendation models generally adopt ID embeddings to store knowledge learned from user historical behaviors and represent items. However, these unique IDs are challenging to be transferred to new domains. With the…

信息检索 · 计算机科学 2024-05-08 Yiqing Wu , Ruobing Xie , Zhao Zhang , Fuzhen Zhuang , Xu Zhang , Leyu Lin , Zhanhui Kang , Yongjun Xu