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Data Drift is the phenomenon where the generating model behind the data changes over time. Due to data drift, any model built on the past training data becomes less relevant and inaccurate over time. Thus, detecting and controlling for data…

机器学习 · 计算机科学 2025-04-29 Subhadip Bandyopadhyay , Joy Bose , Sujoy Roy Chowdhury

Predicting traffic accidents is the key to sustainable city management, which requires effective address of the dynamic and complex spatiotemporal characteristics of cities. Current data-driven models often struggle with data sparsity and…

机器学习 · 计算机科学 2024-07-26 Xiaowei Gao , James Haworth , Ilya Ilyankou , Xianghui Zhang , Tao Cheng , Stephen Law , Huanfa Chen

In this work, we propose a hierarchical reinforcement learning (HRL) structure which is capable of performing autonomous vehicle planning tasks in simulated environments with multiple sub-goals. In this hierarchical structure, the network…

机器人学 · 计算机科学 2019-11-12 Zhiqian Qiao , Zachariah Tyree , Priyantha Mudalige , Jeff Schneider , John M. Dolan

Predicting crime using machine learning and deep learning techniques has gained considerable attention from researchers in recent years, focusing on identifying patterns and trends in crime occurrences. This review paper examines over 150…

机器学习 · 计算机科学 2023-06-16 Varun Mandalapu , Lavanya Elluri , Piyush Vyas , Nirmalya Roy

Finding sustainable and novel solutions to predict city-wide mobility behaviour is an ever-growing problem given increased urban complexity and growing populations. This paper seeks to address this by describing a traffic frame prediction…

机器学习 · 计算机科学 2020-12-01 Jay Santokhi , Pankaj Daga , Joned Sarwar , Anna Jordan , Emil Hewage

We present a novel hierarchical triplet loss (HTL) capable of automatically collecting informative training samples (triplets) via a defined hierarchical tree that encodes global context information. This allows us to cope with the main…

计算机视觉与模式识别 · 计算机科学 2018-10-17 Weifeng Ge , Weilin Huang , Dengke Dong , Matthew R. Scott

Temporal Heterogeneous Networks play a crucial role in capturing the dynamics and heterogeneity inherent in various real-world complex systems, rendering them a noteworthy research avenue for link prediction. However, existing methods fail…

社会与信息网络 · 计算机科学 2025-12-12 Yu Tai , Xinglong Wu , Hongwei Yang , Hui He , Duanjing Chen , Yuanming Shao , Weizhe Zhang

Real-time and human-interpretable decision-making in cyber-physical systems is a significant but challenging task, which usually requires predictions of possible future events from limited data. In this paper, we introduce a…

机器学习 · 计算机科学 2021-12-30 Erfan Aasi , Mingyu Cai , Cristian Ioan Vasile , Calin Belta

Complex networks are nowadays employed in several applications. Modeling urban street networks is one of them, and in particular to analyze criminal aspects of a city. Several research groups have focused on such application, but until now,…

This paper focuses on finding spatial and temporal criminal hotspots. It analyses two different real-world crimes datasets for Denver, CO and Los Angeles, CA and provides a comparison between the two datasets through a statistical analysis…

人工智能 · 计算机科学 2015-08-11 Tahani Almanie , Rsha Mirza , Elizabeth Lor

Self-exciting point processes are widely used to model the contagious effects of crime events living within continuous geographic space, using their occurrence time and locations. However, in urban environments, most events are naturally…

应用统计 · 统计学 2025-10-01 Zheng Dong , Jorge Mateu , Yao Xie

Smart city improved the quality of life for the citizens by implementing information communication technology (ICT) such as the internet of things (IoT). Nevertheless, the smart city is a critical environment that needs to secure it is…

密码学与安全 · 计算机科学 2020-07-28 Najla Al-Taleb , Nazar Abbas Saqib , Atta-ur-Rahman , Sujata Dash

Recent research has shown that criminal networks have complex organizational structures, but whether this can be used to predict static and dynamic properties of criminal networks remains little explored. Here, by combining graph…

Spatio-temporal prediction is a key type of tasks in urban computing, e.g., traffic flow and air quality. Adequate data is usually a prerequisite, especially when deep learning is adopted. However, the development levels of different cities…

人工智能 · 计算机科学 2018-05-22 Leye Wang , Xu Geng , Xiaojuan Ma , Feng Liu , Qiang Yang

One notable weakness of current machine learning algorithms is the poor ability of models to solve new problems without forgetting previously acquired knowledge. The Continual Learning paradigm has emerged as a protocol to systematically…

机器学习 · 计算机科学 2022-11-16 Heinke Hihn , Daniel A. Braun

Long Short Term Memory networks (LSTMs) are used to build single models that predict river discharge across many catchments. These models offer greater accuracy than models trained on each catchment independently if using the same data.…

Human beings cooperatively navigate rule-constrained environments by adhering to mutually known navigational patterns, which may be represented as directional pathways or road lanes. Inferring these navigational patterns from incompletely…

计算机视觉与模式识别 · 计算机科学 2023-07-07 Robin Karlsson , Alexander Carballo , Francisco Lepe-Salazar , Keisuke Fujii , Kento Ohtani , Kazuya Takeda

With the growing use of AI technology, many police departments use forecasting software to predict probable crime hotspots and allocate patrolling resources effectively for crime prevention. The clustered nature of crime data makes…

机器学习 · 计算机科学 2025-02-12 Pramit Das , Moulinath Banerjee , Yuekai Sun

The burgeoning presence of Large Language Models (LLM) is propelling the development of personalized recommender systems. Most existing LLM-based methods fail to sufficiently explore the multi-view graph structure correlations inherent in…

信息检索 · 计算机科学 2025-07-30 Xu Guo , Tong Zhang , Yuanzhi Wang , Chenxu Wang , Fuyun Wang , Xudong Wang , Xiaoya Zhang , Xin Liu , Zhen Cui

Real estate appraisal is important for a variety of endeavors such as real estate deals, investment analysis, and real property taxation. Recently, deep learning has shown great promise for real estate appraisal by harnessing substantial…

机器学习 · 计算机科学 2026-03-24 Weijia Zhang , Jindong Han , Hao Liu , Wei Fan , Hao Wang , Hui Xiong