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The non-stationary nature of data streams strongly challenges traditional machine learning techniques. Although some solutions have been proposed to extend traditional machine learning techniques for handling data streams, these approaches…

机器学习 · 计算机科学 2021-06-23 Xuyang Yan , Abdollah Homaifar , Mrinmoy Sarkar , Abenezer Girma , Edward Tunstel

The increasing availability of traffic data from sensor networks has created new opportunities for understanding vehicular dynamics and identifying anomalies. In this study, we employ clustering techniques to analyse traffic flow data with…

机器学习 · 计算机科学 2025-09-26 Davide Moretti , Elia Onofri , Emiliano Cristiani

In this paper, we introduce a novel hierarchical aggregation design that captures different levels of temporal granularity in action recognition. Our design principle is coarse-to-fine and achieved using a tree-structured network; as we…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Ahmed Mazari , Hichem Sahbi

Hierarchical clustering is an important technique to organize big data for exploratory data analysis. However, existing one-size-fits-all hierarchical clustering methods often fail to meet the diverse needs of different users. To address…

机器学习 · 计算机科学 2020-09-22 Weikai Yang , Xiting Wang , Jie Lu , Wenwen Dou , Shixia Liu

Accurate predictions of ship trajectories in crowded environments are essential to ensure safety in inland waterways traffic. Recent advances in deep learning promise increased accuracy even for complex scenarios. While the challenge of…

机器学习 · 计算机科学 2026-03-06 Tom Legel , Dirk Söffker , Roland Schätzle , Kathrin Donandt

Linear discriminant analysis (LDA) is a well-known method for multiclass classification and dimensionality reduction. However, in general, ordinary LDA does not achieve high prediction accuracy when observations in some classes are…

统计方法学 · 统计学 2021-07-07 Kei Hirose , Kanta Miura , Atori Koie

Process discovery algorithms automatically extract process models from event logs, but high variability often results in complex and hard-to-understand models. To mitigate this issue, trace clustering techniques group process executions…

机器学习 · 计算机科学 2025-12-11 Jari Peeperkorn , Johannes De Smedt , Jochen De Weerdt

Maritime vessel maneuvers, characterized by their inherent complexity and indeterminacy, requires vessel trajectory prediction system capable of modeling the multi-modality nature of future motion states. Conventional stochastic trajectory…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Changlin Li , Yanglei Gan , Tian Lan , Yuxiang Cai , Xueyi Liu , Run Lin , Qiao Liu

We propose an innovative and generic methodology to analyse individual and collective behaviour through individual trajectory data. The work is motivated by the analysis of GPS trajectories of fishing vessels collected from regulatory…

Community detection is a critical challenge in analysing real graphs, including social, transportation, citation, cybersecurity, and many other networks. This article proposes three new, general, hierarchical frameworks to deal with this…

社会与信息网络 · 计算机科学 2023-05-25 Łukasz Brzozowski , Grzegorz Siudem , Marek Gagolewski

Getting a robust time-series clustering with best choice of distance measure and appropriate representation is always a challenge. We propose a novel mechanism to identify the clusters combining learned compact representation of…

机器学习 · 计算机科学 2021-01-12 Soma Bandyopadhyay , Anish Datta , Arpan Pal

Bivariate causal direction identification is a fundamental and vital problem in the causal inference field. Among binary causal methods, most methods based on additive noise only use one single causal mechanism to construct a causal model.…

人工智能 · 计算机科学 2025-07-30 Saixiong Liu , Yuhua Qian , Jue Li , Honghong Cheng , Feijiang Li

A new strategy is proposed for building easy to interpret predictive models in the context of a high-dimensional dataset, with a large number of highly correlated explanatory variables. The strategy is based on a first step of variables…

应用统计 · 统计学 2023-07-14 Evelyne Vigneau

Predicting keywords performance, such as number of impressions, click-through rate (CTR), conversion rate (CVR), revenue per click (RPC), and cost per click (CPC), is critical for sponsored search in the online advertising industry. An…

机器学习 · 统计学 2018-09-10 Yuan Yuan , Xiaojing Dong , Chen Dong , Yiwen Sun , Zhenyu Yan , Abhishek Pani

Clustering performs an essential role in many real world applications, such as market research, pattern recognition, data analysis, and image processing. However, due to the high dimensionality of the input feature values, the data being…

机器学习 · 计算机科学 2021-02-16 Si Lu , Ruisi Li

Biclustering is a two way clustering approach involving simultaneous clustering along two dimensions of the data matrix. Finding biclusters of web objects (i.e. web users and web pages) is an emerging topic in the context of web usage…

神经与进化计算 · 计算机科学 2011-06-14 R. Rathipriya , Dr. K. Thangavel , J. Bagyamani

Contrastive learning has demonstrated strong performance in attributed hypergraph clustering. Typically, existing methods based on contrastive learning first learn node embeddings and then apply clustering algorithms, such as k-means, to…

机器学习 · 计算机科学 2026-03-11 Li Ni , Shuaikang Zeng , Lin Mu , Longlong Lin

In e-commerce industry, user behavior sequence data has been widely used in many business units such as search and merchandising to improve their products. However, it is rarely used in financial services not only due to its 3V…

机器学习 · 计算机科学 2021-01-13 Wei Min , Weiming Liang , Hang Yin , Zhurong Wang , Mei Li , Alok Lal

Predicting the trajectories of vehicles is crucial for the development of autonomous driving (AD) systems, particularly in complex and dynamic traffic environments. In this study, we introduce HiT (Human-like Trajectory Prediction), a novel…

机器人学 · 计算机科学 2025-05-29 Haicheng Liao , Zhenning Li , Guohui Zhang , Keqiang Li , Chengzhong Xu

In this paper, we investigate the use of an unsupervised label clustering technique and demonstrate that it enables substantial improvements in visual relationship prediction accuracy on the Person in Context (PIC) dataset. We propose to…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Hsuan-Kung Yang , An-Chieh Cheng , Kuan-Wei Ho , Tsu-Jui Fu , Chun-Yi Lee