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Time series classification is a field which has drawn much attention over the past decade. A new approach for classification of time series uses classification trees based on shapelets. A shapelet is a subsequence extracted from one of the…

机器学习 · 计算机科学 2012-09-25 Daniel Gordon , Danny Hendler , Lior Rokach

Large-scale and multidimensional spatiotemporal data sets are becoming ubiquitous in many real-world applications such as monitoring urban traffic and air quality. Making predictions on these time series has become a critical challenge due…

机器学习 · 统计学 2021-04-21 Xinyu Chen , Lijun Sun

We introduce canonical correlation forests (CCFs), a new decision tree ensemble method for classification and regression. Individual canonical correlation trees are binary decision trees with hyperplane splits based on local canonical…

机器学习 · 统计学 2017-08-10 Tom Rainforth , Frank Wood

The variety of complex algorithmic approaches for tackling time-series classification problems has grown considerably over the past decades, including the development of sophisticated but challenging-to-interpret deep-learning-based…

统计方法学 · 统计学 2023-04-03 Trent Henderson , Annie G. Bryant , Ben D. Fulcher

We prove uniform consistency of Random Survival Forests (RSF), a newly introduced forest ensemble learner for analysis of right-censored survival data. Consistency is proven under general splitting rules, bootstrapping, and random selection…

统计理论 · 数学 2008-11-19 Hemant Ishwaran , Udaya B. Kogalur

Random Forests are one of the most popular classifiers in machine learning. The larger they are, the more precise is the outcome of their predictions. However, this comes at a cost: their running time for classification grows linearly with…

机器学习 · 计算机科学 2019-12-24 Frederik Gossen , Bernhard Steffen

We introduce and detail an atypical neural network architecture, called time elastic neural network (teNN), for multivariate time series classification. The novelty compared to classical neural network architecture is that it explicitly…

神经与进化计算 · 计算机科学 2024-06-14 Pierre-François Marteau

We propose a novel framework in high-dimensional factor models to simultaneously analyse multiple tensor time series, each with potentially different tensor orders and dimensionality. The connection between different tensor time series is…

统计方法学 · 统计学 2025-09-19 Zetai Cen

Recently there has been an increase in the studies on time-series data mining specifically time-series clustering due to the vast existence of time-series in various domains. The large volume of data in the form of time-series makes it…

机器学习 · 计算机科学 2019-12-06 Hossein Kamalzadeh , Abbas Ahmadi , Saeed Mansour

Time-Series Classification (TSC) has attracted a lot of attention in pattern recognition, because wide range of applications from different domains such as finance and health informatics deal with time-series signals. Bag of Features (BoF)…

计算机视觉与模式识别 · 计算机科学 2018-03-30 Nima Hatami , Yann Gavet , Johan Debayle

Classification is essential to the applications in the field of data mining, artificial intelligence, and fault detection. There exists a strong need in developing accurate, suitable, and efficient classification methods and algorithms with…

人工智能 · 计算机科学 2024-03-19 Yingtao Ren , Xiaomin Zhu , Kaiyuan Bai , Runtong Zhang

Tree ensembles have demonstrated state-of-the-art predictive performance across a wide range of problems involving tabular data. Nevertheless, the black-box nature of tree ensembles is a strong limitation, especially for applications with…

机器学习 · 统计学 2025-10-30 Clément Bénard

Feature level sets (FLS) have shown significant potential in the analysis of multi-field data by using traits defined in attribute space to specify features in the domain. In this work, we address key challenges in the practical use of FLS:…

机器学习 · 计算机科学 2025-01-14 Danhua Lei , Jochen Jankowai , Petar Hristov , Hamish Carr , Leif Denby , Talha Bin Masood , Ingrid Hotz

Random Forests and related tree-based methods are popular for supervised learning from table based data. Apart from their ease of parallelization, their classification performance is also superior. However, this performance, especially…

机器学习 · 计算机科学 2023-07-25 Tom Hanika , Johannes Hirth

Comparative analysis of scalar fields is an important problem with various applications including feature-directed visualization and feature tracking in time-varying data. Comparing topological structures that are abstract and succinct…

图形学 · 计算机科学 2024-06-06 Raghavendra Sridharamurthy , Vijay Natarajan

Classification of functional data where observations are curves or trajectories poses unique challenges, particularly under severe class imbalance. Traditional Random Forest algorithms, while robust for tabular data, often fail to capture…

机器学习 · 统计学 2025-12-10 Fahad Mostafa , Hafiz Khan

Historically, researchers in the field have spent a great deal of effort to create image representations that have scale invariance and retain spatial location information. This paper proposes to encode equivalent temporal characteristics…

计算机视觉与模式识别 · 计算机科学 2014-09-01 Zhenzhong Lan , Xuanchong Li , Alexandar G. Hauptmann

Time series classification stands as a pivotal and intricate challenge across various domains, including finance, healthcare, and industrial systems. In contemporary research, there has been a notable upsurge in exploring feature extraction…

机器学习 · 计算机科学 2024-07-24 Alireza Keshavarzian , Shahrokh Valaee

Symbolic Aggregate approximation (SAX) is a classical symbolic approach in many time series data mining applications. However, SAX only reflects the segment mean value feature and misses important information in a segment, namely the trend…

机器学习 · 计算机科学 2019-05-03 Yufeng Yu , Yuelong Zhu , Dingsheng Wan , Qun Zhao , Huan Liu

The time-series forecasting (TSF) problem is a traditional problem in the field of artificial intelligence. Models such as Recurrent Neural Network (RNN), Long Short Term Memory (LSTM), and GRU (Gate Recurrent Units) have contributed to…

机器学习 · 计算机科学 2024-08-29 Sunghyun Sim , Dohee Kim , Hyerim Bae