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Neighbourhood-based Collaborative Filtering (CF) has been applied in the industry for several decades, because of the easy implementation and high recommendation accuracy. As the core of neighbourhood-based CF, the task of dynamically…

Information Retrieval · Computer Science 2015-06-01 Zhigang Lu , Hong Shen

Sets of sequences with good correlation properties are desired in many active sensing and communication systems, e.g., multiple-input-multiple-output (MIMO) radar systems and code-division multiple-access (CDMA) cellular systems. In this…

Optimization and Control · Mathematics 2016-05-04 Junxiao Song , Prabhu Babu , Daniel P. Palomar

We propose a new Group Feature Selection method for Discriminative Correlation Filters (GFS-DCF) based visual object tracking. The key innovation of the proposed method is to perform group feature selection across both channel and spatial…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 Tianyang Xu , Zhen-Hua Feng , Xiao-Jun Wu , Josef Kittler

The ROI (region-of-interest) based pooling method performs pooling operations on the cropped ROI regions for various samples and has shown great success in the object detection methods. It compresses the model size while preserving the…

Computer Vision and Pattern Recognition · Computer Science 2019-11-06 Yuxuan Sun , Chong Sun , Dong Wang , You He , Huchuan Lu

Dense image prediction tasks demand features with strong category information and precise spatial boundary details at high resolution. To achieve this, modern hierarchical models often utilize feature fusion, directly adding upsampled…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Linwei Chen , Ying Fu , Lin Gu , Chenggang Yan , Tatsuya Harada , Gao Huang

Correlation filters (CFs) have been continuously advancing the state-of-the-art tracking performance and have been extensively studied in the recent few years. Most of the existing CF trackers adopt a cosine window to spatially reweight…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Feng Li , Xiaohe Wu , Wangmeng Zuo , David Zhang , Lei Zhang

Efficient estimators of Fourier-space statistics for large number of objects rely on Fast Fourier Transforms (FFTs), which are affected by aliasing from unresolved small scale modes due to the finite FFT grid. Aliasing takes the form of a…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-09 Emiliano Sefusatti , Martin Crocce , Roman Scoccimarro , Hugh Couchman

Kernel Correlation Filters have shown a very promising scheme for visual tracking in terms of speed and accuracy on several benchmarks. However it suffers from problems that affect its performance like occlusion, rotation and scale change.…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Abdullah Hamdi , Bernard Ghanem

Spectrally constrained sequences (SCSs) play an important role in modern communication and radar systems operating over non-contiguous spectrum. Despite numerous research attempts over the past years, very few works are known on the…

Information Theory · Computer Science 2022-09-27 Zhifan Ye , Zhengchun Zhou , Zilong Liu , Xiaohu Tang , Pingzhi Fan

Diffusion models have become a leading paradigm for image super-resolution (SR), but existing methods struggle to guarantee both the high-frequency perceptual quality and the low-frequency structural fidelity of generated images. Although…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Hexin Zhang , Dong Li , Jie Huang , Bingzhou Wang , Xueyang Fu , Zhengjun Zha

Correlation filter (CF) based trackers have aroused increasing attentions in visual tracking field due to the superior performance on several datasets while maintaining high running speed. For each frame, an ideal filter is trained in order…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Yuqi Han , Chenwei Deng , Zengshuo Zhang , Jinghong Nan , Baojun Zhao

Collaborative filtering (CF) plays a critical role in the development of recommender systems. Most CF methods utilize an encoder to embed users and items into the same representation space, and the Bayesian personalized ranking (BPR) loss…

Information Retrieval · Computer Science 2022-06-28 Chenyang Wang , Yuanqing Yu , Weizhi Ma , Min Zhang , Chong Chen , Yiqun Liu , Shaoping Ma

As the core of recommender system, collaborative filtering (CF) models the affinity between a user and an item from historical user-item interactions, such as clicks, purchases, and so on. Benefited from the strong representation power,…

Information Retrieval · Computer Science 2019-06-27 Xiaoyu Du , Xiangnan He , Fajie Yuan , Jinhui Tang , Zhiguang Qin , Tat-Seng Chua

Referring expression comprehension aims to localize the object instance described by a natural language expression. Current referring expression methods have achieved good performance. However, none of them is able to achieve real-time…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Yue Liao , Si Liu , Guanbin Li , Fei Wang , Yanjie Chen , Chen Qian , Bo Li

Models driven by spurious correlations often yield poor generalization performance. We propose the counterfactual (CF) alignment method to detect and quantify spurious correlations of black box classifiers. Our methodology is based on…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Joseph Paul Cohen , Louis Blankemeier , Akshay Chaudhari

Correlation Clustering (CC) is a foundational problem in unsupervised learning that models binary similarity relations using labeled graphs. While classical CC has been widely studied, many real-world applications involve more nuanced…

Data Structures and Algorithms · Computer Science 2025-09-23 Chenglin Fan , Dahoon Lee , Euiwoong Lee

The optimal fusion of estimates in a Distributed Kalman Filter (DKF) requires tracking of the complete network error covariance, problematic in terms of memory and communication. A scalable alternative is to fuse estimates under unknown…

Systems and Control · Electrical Eng. & Systems 2022-06-14 Eduardo Sebastián , Eduardo Montijano , Carlos Sagüés

This paper investigates amplify-and-forward (AF) schemes for both one and two-way relay channels. Unlike most existing works assuming independent noise at the relays, we consider a more general scenario with correlated relay noise. We first…

Information Theory · Computer Science 2013-07-09 Binyue Liu , Ye Yang , Ning Cai

In this paper, we propose an efficient method to provide personal identification using fingerprint to get better accuracy even in noisy condition. The fingerprint matching based on the number of corresponding minutia pairings, has been in…

Computer Vision and Pattern Recognition · Computer Science 2013-11-15 V. Karthikeyan , V. J. Vijayalakshmi

We introduce the adaptive cuckoo filter (ACF), a data structure for approximate set membership that extends cuckoo filters by reacting to false positives, removing them for future queries. As an example application, in packet processing…

Data Structures and Algorithms · Computer Science 2017-10-12 Michael Mitzenmacher , Salvatore Pontarelli , Pedro Reviriego