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Automatic chord recognition (ACR) extracts time-aligned chord labels from music audio recordings. Despite recent advances, ACR still struggles with oversegmentation, data scarcity, and imbalance, especially in recognizing complex chords…

声音 · 计算机科学 2026-04-28 Leekyung Kim , Jonghun Park

Self-supervised representation learning of Multivariate Time Series (MTS) is a challenging task and attracts increasing research interests in recent years. Many previous works focus on the pretext task of self-supervised learning and…

机器学习 · 计算机科学 2022-03-10 Yijiang Chen , Xiangdong Zhou , Zhen Xing , Zhidan Liu , Minyang Xu

We consider a coordinated complexity-aware 4D trajectory planning problem in this paper. A case study of multiple aircraft traversing through a sector that contains a network of airways and waypoints is utilized to illustrate the model and…

最优化与控制 · 数学 2016-03-03 Xiongwen Qian , Jianfeng Mao , Xudong Diao , Changpeng Yang

Intrathoracic airway segmentation in computed tomography (CT) is a prerequisite for various respiratory disease analyses such as chronic obstructive pulmonary disease (COPD), asthma and lung cancer. Unlike other organs with simpler shapes…

图像与视频处理 · 电气工程与系统科学 2023-06-16 Puyang Wang , Dazhou Guo , Dandan Zheng , Minghui Zhang , Haogang Yu , Xin Sun , Jia Ge , Yun Gu , Le Lu , Xianghua Ye , Dakai Jin

Trajectory optimization methods provide an efficient and reliable means of computing feasible trajectories in nonconvex solution spaces. However, a well-known limitation of these algorithms is that they are inherently local in nature, and…

最优化与控制 · 数学 2025-11-19 Justin Ganiban , Natalia Pavlasek , Behcet Acikmese

Autonomous vehicles and Advanced Driving Assistance Systems (ADAS) have the potential to radically change the way we travel. Many such vehicles currently rely on segmentation and object detection algorithms to detect and track objects…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Ravi Kakaiya , Rakshith Sathish , Ramanathan Sethuraman , Debdoot Sheet

We consider the problem of online unsupervised cross-domain adaptation, where two independent but related data streams with different feature spaces -- a fully labeled source stream and an unlabeled target stream -- are learned together.…

机器学习 · 计算机科学 2021-10-05 Marcus de Carvalho , Mahardhika Pratama , Jie Zhang , Edward Yapp

Personal assistants, automatic speech recognizers and dialogue understanding systems are becoming more critical in our interconnected digital world. A clear example is air traffic control (ATC) communications. ATC aims at guiding aircraft…

Representing the movements of objects (trips) over a network in a compact way while retaining the capability of exploiting such data effectively is an important challenge of real applications. We present a new Compact Trip Representation…

数据结构与算法 · 计算机科学 2019-01-01 Nieves R. Brisaboa , Antonio Fariña , Daniil Galaktionov , M. Andrea Rodriguez

In this paper, we study the problem of learning compact (low-dimensional) representations for sequential data that captures its implicit spatio-temporal cues. To maximize extraction of such informative cues from the data, we set the problem…

机器学习 · 计算机科学 2020-07-14 Anoop Cherian , Shuchin Aeron

Weakly supervised semantic segmentation (WSSS) has gained significant popularity since it relies only on weak labels such as image level annotations rather than pixel level annotations required by supervised semantic segmentation (SSS)…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Kunhao Yuan , Gerald Schaefer , Yu-Kun Lai , Yifan Wang , Xiyao Liu , Lin Guan , Hui Fang

Many Click-Through Rate (CTR) prediction works focused on designing advanced architectures to model complex feature interactions but neglected the importance of feature representation learning, e.g., adopting a plain embedding layer for…

信息检索 · 计算机科学 2022-12-02 Fangye Wang , Yingxu Wang , Dongsheng Li , Hansu Gu , Tun Lu , Peng Zhang , Ning Gu

Obtaining labelled data in a particular context could be expensive and time consuming. Although different algorithms, including unsupervised learning, semi-supervised learning, self-learning have been adopted, the performance of text…

计算与语言 · 计算机科学 2022-12-26 Ying Xie , Dongping Song

Location data becomes more and more important. In this paper, we focus on the trajectory data, and propose a new framework, namely PRESS (Paralleled Road-Network-Based Trajectory Compression), to effectively compress trajectory data under…

数据库 · 计算机科学 2014-02-10 Renchu Song , Weiwei Sun , Baihua Zheng , Yu Zheng

Traffic Atomic Activity which describes traffic patterns for topological intersection dynamics is a crucial topic for the advancement of intelligent driving systems. However, existing atomic activity datasets are collected from an…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Zihao Chen , Hsuanyu Wu , Chi-Hsi Kung , Yi-Ting Chen , Yan-Tsung Peng

Convolutional Sparse Coding (CSC) is a well-established image representation model especially suited for image restoration tasks. In this work, we extend the applicability of this model by proposing a supervised approach to convolutional…

计算机视觉与模式识别 · 计算机科学 2018-04-10 Lama Affara , Bernard Ghanem , Peter Wonka

Convolutional sparse coding (CSC) improves sparse coding by learning a shift-invariant dictionary from the data. However, existing CSC algorithms operate in the batch mode and are expensive, in terms of both space and time, on large…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Yaqing Wang , Quanming Yao , James T. Kwok , Lionel M. Ni

Trajectory prediction facilitates effective planning and decision-making, while constrained trajectory prediction integrates regulation into prediction. Recent advances in constrained trajectory prediction focus on structured constraints by…

机器人学 · 计算机科学 2025-03-19 Hao Ma , Zhiqiang Pu , Shijie Wang , Boyin Liu , Huimu Wang , Yanyan Liang , Jianqiang Yi

In this work, we investigate the time series representation learning problem using self-supervised techniques. Contrastive learning is well-known in this area as it is a powerful method for extracting information from the series and…

机器学习 · 计算机科学 2024-10-08 Duy A. Nguyen , Trang H. Tran , Huy Hieu Pham , Phi Le Nguyen , Lam M. Nguyen

Advanced Air Mobility (AAM) introduces a new, efficient mode of transportation with the use of vehicle autonomy and electrified aircraft to provide increasingly autonomous transportation between previously underserved markets. Safe and…

人工智能 · 计算机科学 2023-08-10 Marc W. Brittain , Luis E. Alvarez , Kara Breeden