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We present a novel modular object detection convolutional neural network that significantly improves the accuracy of object detection. The network consists of two stages in a hierarchical structure. The first stage is a network that detects…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Erez Yahalomi

We develop a novel optical neural network (ONN) framework which introduces a degree of scalar invariance to image classification estima- tion. Taking a hint from the human eye, which has higher resolution near the center of the retina,…

Computer Vision and Pattern Recognition · Computer Science 2018-05-30 Grant Fennessy , Yevgeniy Vorobeychik

The unlicensed spectrum has been utilized to make up the shortage on frequency spectrum in new radio (NR) systems. To fully exploit the advantages brought by the unlicensed bands, one of the key issues is to guarantee the fair coexistence…

Information Theory · Computer Science 2021-02-24 Rui Yin , Zhiqun Zou , Celimuge Wu , Jiantao Yuan , Xianfu Chen , Guanding Yu

In machine learning (ML) workflows, determining the invariance qualities of an ML model is a common testing procedure. Traditionally, invariance qualities are evaluated using simple formula-based scores, e.g., accuracy. In this paper, we…

Machine Learning · Computer Science 2022-07-04 Zukang Liao , Pengfei Zhang , Min Chen

We investigate localization of a source based on angle of arrival (AoA) measurements made at a geographically dispersed network of cooperating receivers. The goal is to efficiently compute accurate estimates despite outliers in the AoA…

Networking and Internet Architecture · Computer Science 2012-06-19 Bharath Ananthasubramaniam , Upamanyu Madhow

The accuracy of global navigation satellite system (GNSS) receivers is significantly compromised by interference from jamming devices. Consequently, the detection of these jammers are crucial to mitigating such interference signals.…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Lucas Heublein , Tobias Feigl , Alexander Rügamer , Felix Ott

We study model-based end-to-end learning in the context of integrated sensing and communication (ISAC) under hardware impairments. Hardware impairments are usually addressed by means of array calibration with a focus on communication…

Signal Processing · Electrical Eng. & Systems 2024-12-20 José Miguel Mateos-Ramos , Christian Häger , Musa Furkan Keskin , Luc Le Magoarou , Henk Wymeersch

Today's telecommunication networks have become sources of enormous amounts of widely heterogeneous data. This information can be retrieved from network traffic traces, network alarms, signal quality indicators, users' behavioral data, etc.…

Networking and Internet Architecture · Computer Science 2018-12-04 Francesco Musumeci , Cristina Rottondi , Avishek Nag , Irene Macaluso , Darko Zibar , Marco Ruffini , Massimo Tornatore

Recent improvements in object detection have shown potential to aid in tasks where previous solutions were not able to achieve. A particular area is assistive devices for individuals with visual impairment. While state-of-the-art deep…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Linda Wang , Alexander Wong

Given the increased growing of Internet of Things networks and their presence in critical aspects of human activities, the security of devices connected to these networks becomes critical. Machine Learning approaches are becoming prominent…

Cryptography and Security · Computer Science 2022-03-02 Jhon Alexánder Parra , Sergio Armando Gutiérrez , John Willian Branch

Collecting and accessing a large amount of medical data is very time-consuming and laborious, not only because it is difficult to find specific patients but also because it is required to resolve the confidentiality of a patient's medical…

Sound · Computer Science 2021-03-04 Junghyun Koo , Jie Hwan Lee , Jaewoo Pyo , Yujin Jo , Kyogu Lee

Loss of Signal (LOS) represents a significant cost for operators of optical networks. By studying large sets of real-world Performance Monitoring (PM) data collected from six international optical networks, we find that it is possible to…

Networking and Internet Architecture · Computer Science 2022-05-10 Wenjie Du , David Cote , Chris Barber , Yan Liu

The massive amount of data available in operational mobile networks offers an invaluable opportunity for operators to detect and analyze possible anomalies and predict network performance. In particular, application of advanced machine…

Networking and Internet Architecture · Computer Science 2020-12-01 Jessica Moysen , Furqan Ahmed , Mario García-Lozano , Jarno Niemelä

This work presents a novel framework for random access in crowded scenarios of multiple-input multiple-output(MIMO) systems. A multi-antenna base station (BS) and multiple single-antenna users are considered in these systems. A huge portion…

Information Theory · Computer Science 2022-04-27 Abolghasem Afshar , Vahid Tabataba Vakili , Sajad Daei

This paper introduces a live object recognition system that serves as a blind aid. Visually impaired people heavily rely on their other senses such as touch and auditory signals for understanding the environment around them. The act of…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Kedar Potdar , Chinmay D. Pai , Sukrut Akolkar

The resolution and contrast of microscope imaging is often affected by aberrations introduced by imperfect optical systems and inhomogeneous refractive structures in specimens. Adaptive optics (AO) compensates these aberrations and restores…

In medical science, the use of computer science in disease detection and diagnosis is gaining popularity. Previously, the detection of disease used to take a significant amount of time and was less reliable. Machine learning (ML) techniques…

Image and Video Processing · Electrical Eng. & Systems 2019-12-18 Nowshin Tasnim , Mahmudul Hasan , Ishrak Islam

Fiber nonlinear interference (NLI) modeling and monitoring are the key building blocks to support elastic optical networks (EONs). In the past, they were normally developed and investigated separately. Moreover, the accuracy of the…

Signal Processing · Electrical Eng. & Systems 2019-06-26 Qunbi Zhuge , Xiaobo Zeng , Huazhi Lun , Meng Cai , Xiaomin Liu , Weisheng Hu

The proliferation of Internet of Things (IoT) devices has grown exponentially in recent years, introducing significant security challenges. Accurate identification of the types of IoT devices and their associated actions through network…

Cryptography and Security · Computer Science 2025-12-17 Reza Ryan , Napoleon Paciente , Cahil Youngs , Nickson Karie , Qian Li , Nasim Ferdosian

For a massive number of devices, nonorthogonal multiple access (NOMA) has been recognized as a promising technology for improving the spectral efficiency compared to orthogonal multiple access (OMA). However, it is difficult for a base…

Information Theory · Computer Science 2019-02-07 Minseok Choi , Joongheon Kim