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Text-to-video generation poses significant challenges due to the inherent complexity of video data, which spans both temporal and spatial dimensions. It introduces additional redundancy, abrupt variations, and a domain gap between language…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Ziqin Zhou , Yifan Yang , Yuqing Yang , Tianyu He , Houwen Peng , Kai Qiu , Qi Dai , Lili Qiu , Chong Luo , Lingqiao Liu

In this article, we propose a novel probabilistic framework to improve the accuracy of a weighted majority voting algorithm. In order to assign higher weights to the classifiers which can correctly classify hard-to-classify instances, we…

机器学习 · 统计学 2019-11-13 Ziheng Chen , Hongshik Ahn

In Dynamic Ensemble Selection (DES) techniques, only the most competent classifiers are selected to classify a given query sample. Hence, the key issue in DES is how to estimate the competence of each classifier in a pool to select the most…

机器学习 · 计算机科学 2018-11-06 Rafael M. O. Cruz , Robert Sabourin , George D. C. Cavalcanti

Spatiotemporal time series forecasting plays a key role in a wide range of real-world applications. While significant progress has been made in this area, fully capturing and leveraging spatiotemporal heterogeneity remains a fundamental…

机器学习 · 计算机科学 2024-09-04 Zheng Dong , Renhe Jiang , Haotian Gao , Hangchen Liu , Jinliang Deng , Qingsong Wen , Xuan Song

Time series classification is a fundamental task in healthcare and industry, yet the development of time series foundation models (TSFMs) remains limited by the scarcity of publicly available time series datasets. In this work, we propose…

机器学习 · 计算机科学 2025-07-03 Simon Roschmann , Quentin Bouniot , Vasilii Feofanov , Ievgen Redko , Zeynep Akata

We propose a novel method for code summarization utilizing Heterogeneous Code Representations (HCRs) and our specially designed HierarchyNet. HCRs effectively capture essential code features at lexical, syntactic, and semantic levels by…

软件工程 · 计算机科学 2023-05-10 Minh Huynh Nguyen , Nghi D. Q. Bui , Truong Son Hy , Long Tran-Thanh , Tien N. Nguyen

The Complete Vocal Technique (CVT) is a school of singing developed in the past decades by Cathrin Sadolin et al.. CVT groups the use of the voice into so called vocal modes, namely Neutral, Curbing, Overdrive and Edge. Knowledge of the…

声音 · 计算机科学 2026-04-30 Reemt Hinrichs , Sonja Stephan , Alexander Lange , Jörn Ostermann

Designing adaptive classifiers for an evolving data stream is a challenging task due to the data size and its dynamically changing nature. Combining individual classifiers in an online setting, the ensemble approach, is a well-known…

机器学习 · 计算机科学 2017-09-12 Hamed R. Bonab , Fazli Can

Methods for estimating heterogeneous treatment effects (HTE) from observational data have largely focused on continuous or binary outcomes, with less attention paid to survival outcomes and almost none to settings with competing risks. In…

统计方法学 · 统计学 2024-09-30 Shenbo Xu , Raluca Cobzaru , Stan N. Finkelstein , Roy E. Welsch , Kenney Ng , Zach Shahn

Efficient distributed numerical word representation models (word embeddings) combined with modern machine learning algorithms have recently yielded considerable improvement on automatic document classification tasks. However, the…

计算与语言 · 计算机科学 2018-09-07 Roger A. Stein , Patricia A. Jaques , Joao F. Valiati

In this paper, we propose a novel dynamic ensemble selection framework using meta-learning. The framework is divided into three steps. In the first step, the pool of classifiers is generated from the training data. The second phase is…

机器学习 · 计算机科学 2018-11-06 Rafael M. O. Cruz , Robert Sabourin , George D. C. Cavalcanti

Artificial intelligence (AI) has significantly improved medical screening accuracy, particularly in cancer detection and risk assessment. However, traditional classification metrics often fail to account for imbalanced data, varying…

机器学习 · 计算机科学 2025-10-28 Longfei Wei , Fang Sheng , Jianfei Zhang

This paper describes a new method, HGV2C, for pattern analysis. The HGV2C method involves the construction of a computer ego (CE) based on an individual object that can be either a part of the system under analysis or a newly created object…

其他计算机科学 · 计算机科学 2008-05-06 Leonid Andreev

Classification of sequences of temporal intervals is a part of time series analysis which concerns series of events. We propose a new method of transforming the problem to a task of multivariate series classification. We use one of the…

机器学习 · 计算机科学 2022-04-29 Jakub Michał Bilski , Agnieszka Jastrzębska

A novel hybrid quantum-classical approach has been developed to efficiently address the multireference quantum chemistry problem. The Handover Iterative Variational Quantum Eigensolver (HiVQE) is designed to accurately estimate ground-state…

Temporal networks are ubiquitous and evolve over time by the addition, deletion, and changing of links, nodes, and attributes. Although many relational datasets contain temporal information, the majority of existing techniques in relational…

人工智能 · 计算机科学 2011-11-23 Ryan A. Rossi , Jennifer Neville

Multivariate time series (MTS) classification is foundational to pervasive computing and financial analysis, yet existing multi-scale paradigms are often constrained by suboptimal representation fidelity. We identify two critical…

机器学习 · 计算机科学 2026-05-22 Fan Zhang , Yating Cui , Hua Wang

The video technology scenery has been very vivid over the past years, with novel video coding technologies introduced that promise improved compression performance over state-of-the-art technologies. Despite the fact that a lot of video…

图像与视频处理 · 电气工程与系统科学 2022-04-13 Angeliki V. Katsenou , Fan Zhang , Mariana Afonso , Goce Dimitrov , David R. Bull

In this work, we address unsupervised temporal action segmentation, which segments a set of long, untrimmed videos into semantically meaningful segments that are consistent across videos. While recent approaches combine representation…

计算机视觉与模式识别 · 计算机科学 2025-01-27 Federico Spurio , Emad Bahrami , Gianpiero Francesca , Juergen Gall

Hierarchical VAEs have emerged in recent years as a reliable option for maximum likelihood estimation. However, instability issues and demanding computational requirements have hindered research progress in the area. We present simple…

机器学习 · 计算机科学 2022-04-29 Louay Hazami , Rayhane Mama , Ragavan Thurairatnam