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Feature selection refers to the process of selecting useful features for machine learning tasks, and it is also a key step for structural health monitoring (SHM). This paper proposes a fast feature selection algorithm by efficiently…

Machine Learning · Statistics 2024-09-11 Sikai Zhang , Tingna Wang , Keith Worden , Limin Sun , Elizabeth J. Cross

In scenarios involving text classification where the number of classes is large (in multiples of 10000s) and training samples for each class are few and often verbose, nearest neighbor methods are effective but very slow in computing a…

Information Retrieval · Computer Science 2017-12-12 Gautam Singh , Gargi Dasgupta , Yu Deng

We propose a new model-free feature screening method based on energy distances for ultrahigh-dimensional binary classification problems. With a high probability, the proposed method retains only relevant features after discarding all the…

Methodology · Statistics 2023-05-19 Sarbojit Roy , Soham Sarkar , Subhajit Dutta , Anil K. Ghosh

Lensless cameras are characterized by several advantages (e.g., miniaturization, ease of manufacture, and low cost) as compared with conventional cameras. However, they have not been extensively employed due to their poor image clarity and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yinger Zhang , Zhouyi Wu , Peiying Lin , Yuting Wu , Lusong Wei , Zhengjie Huang , Jiangtao Huangfu

Machine learning for text classification is the underpinning of document cataloging, news filtering, document steering and exemplification. In text mining realm, effective feature selection is significant to make the learning task more…

Information Retrieval · Computer Science 2013-12-10 RamachandraRao Kurada , Dr. K Karteeka Pavan

The present work demonstrates a fast and improved technique for dewarping nonlinearly warped document images. The images are first dewarped at the page-level by estimating optimum inverse projections using curvilinear homography. The…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Tanmoy Dasgupta , Nibaran Das , Mita Nasipuri

We present Chandoj\~n\=anam, a web-based Sanskrit meter (Chanda) identification and utilization system. In addition to the core functionality of identifying meters, it sports a friendly user interface to display the scansion, which is a…

Software Engineering · Computer Science 2023-10-13 Hrishikesh Terdalkar , Arnab Bhattacharya

Knowledge Distillation (KD) is a well-known training paradigm in deep neural networks where knowledge acquired by a large teacher model is transferred to a small student. KD has proven to be an effective technique to significantly improve…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Philip de Rijk , Lukas Schneider , Marius Cordts , Dariu M. Gavrila

Font selection is one of the most important steps in a design workflow. Traditional methods rely on ordered lists which require significant domain knowledge and are often difficult to use even for trained professionals. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2019-10-03 Tianlang Chen , Zhaowen Wang , Ning Xu , Hailin Jin , Jiebo Luo

Traditionally, the performance of non-native mispronunciation verification systems relied on effective phone-level labelling of non-native corpora. In this study, a multi-view approach is proposed to incorporate discriminative feature…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-10 Zhenyu Wang , John H. L. Hansen , Yanlu Xie

In this paper, we propose to utilize Convolutional Neural Networks (CNNs) and the segmentation-based multi-scale analysis to locate tampered areas in digital images. First, to deal with color input sliding windows of different scales, a…

Computer Vision and Pattern Recognition · Computer Science 2018-12-26 Yaqi Liu , Qingxiao Guan , Xianfeng Zhao , Yun Cao

This paper presents an intuitive application of multivariate kernel density estimation (KDE) for data correction. The method utilizes the expected value of the conditional probability density function (PDF) and a credible interval to…

Applications · Statistics 2025-09-19 Hai Bui , Mostafa Bakhoday-Paskyabi

Knowledge distillation (KD) exploits a large well-trained model (i.e., teacher) to train a small student model on the same dataset for the same task. Treating teacher features as knowledge, prevailing methods of knowledge distillation train…

Computer Vision and Pattern Recognition · Computer Science 2023-05-29 Yuzhu Wang , Lechao Cheng , Manni Duan , Yongheng Wang , Zunlei Feng , Shu Kong

We present a new method for multiclass thresholding of a histogram which is based on the nonparametric Kernel Density (KD) estimation, where the unknown parameters of the KD estimate are defined using the Expectation-Maximization (EM)…

Image and Video Processing · Electrical Eng. & Systems 2022-02-11 S. Korneev , J. Gilles , I. Battiato

This paper presents a method that can accurately detect heads especially small heads under the indoor scene. To achieve this, we propose a novel method, Feature Refine Net (FRN), and a cascaded multi-scale architecture. FRN exploits the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Dezhi Peng , Zikai Sun , Zirong Chen , Zirui Cai , Lele Xie , Lianwen Jin

Nearest neighbor (NN) problem is an important scientific problem. The NN query, to find the closest one to a given query point among a set of points, is widely used in applications such as density estimation, pattern classification,…

Databases · Computer Science 2019-11-11 Yang Li , Gang Liu , Junbin Gao , Zhenwen He , Mingyuan Bai , Chengjun Li

Character identification plays a vital role in the contemporary world of Image processing. It can solve many composite problems and makes humans work easier. An instance is Handwritten Character detection. Handwritten recognition is not a…

Computer Vision and Pattern Recognition · Computer Science 2014-01-24 V. Karthikeyan , M. Divya , C. K. Chithra , K. Manju Priya

Color quantization is an important operation with numerous applications in graphics and image processing. Most quantization methods are essentially based on data clustering algorithms. However, despite its popularity as a general purpose…

Computer Vision and Pattern Recognition · Computer Science 2010-11-02 M. Emre Celebi

A robust and efficient anomaly detection technique is proposed, capable of dealing with crowded scenes where traditional tracking based approaches tend to fail. Initial foreground segmentation of the input frames confines the analysis to…

Computer Vision and Pattern Recognition · Computer Science 2013-04-04 Vikas Reddy , Conrad Sanderson , Brian C. Lovell

Noisy images processing is a fundamental task of computer vision. The first example is the detection of faint edges in noisy images, a challenging problem studied in the last decades. A recent study introduced a fast method to detect faint…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Nati Ofir , Yosi Keller