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This paper has been withdrawn by the authors. Cellular network data has become a hot source of study for extraction of user-mobility and spatio-temporal trends. Location binding in mobility data can be done through different methods like…

Networking and Internet Architecture · Computer Science 2012-09-24 Shafqat Ali Shad , Enhong Chen

Modern Deep Learning (DL) architectures based on transformers (e.g., BERT, RoBERTa) are exhibiting performance improvements across a number of natural language tasks. While such DL models have shown tremendous potential for use in software…

Software Engineering · Computer Science 2023-06-02 Agnieszka Ciborowska , Kostadin Damevski

Due to long-distance correlation and powerful pretrained models, transformer-based methods have initiated a breakthrough in visual object tracking performance. Previous works focus on designing effective architectures suited for tracking,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Jie Zhao , Johan Edstedt , Michael Felsberg , Dong Wang , Huchuan Lu

Data augmentation is one of the most effective techniques to improve the generalization performance of deep neural networks. Yet, despite often facing limited data availability in medical image analysis, it is frequently underutilized. This…

Image and Video Processing · Electrical Eng. & Systems 2024-03-18 Adam Tupper , Christian Gagné

Human-centered data collection is typically costly and implicates issues of privacy. Various solutions have been proposed in the literature to reduce this cost, such as crowdsourced data collection, or the use of semi-supervised algorithms.…

Signal Processing · Electrical Eng. & Systems 2021-05-07 Mohammad Nabati , Hojjat Navidan , Reza Shahbazian , Seyed Ali Ghorashi , David Windridge

Data augmentation is an essential technique for improving recognition accuracy in object recognition using deep learning. Methods that generate mixed data from multiple data sets, such as mixup, can acquire new diversity that is not…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Shungo Fujii , Yasunori Ishii , Kazuki Kozuka , Tsubasa Hirakawa , Takayoshi Yamashita , Hironobu Fujiyoshi

In recent years, smartphones have become prevalent. Much attention is being paid to developing and making use of mobile applications that require position information. The Global Positioning System (GPS) is a very popular localization…

Networking and Internet Architecture · Computer Science 2013-12-25 Haifeng Liu , Feng Xia , Zhuo Yang , Yang Cao

This paper studies content caching in cloud-aided wireless networks where small cell base stations with limited storage are connected to the cloud via limited capacity fronthaul links. By formulating a utility (inverse of service delay)…

Networking and Internet Architecture · Computer Science 2017-10-03 Syed Tamoor-ul-Hassan , Sumudu Samarakoon , Mehdi Bennis , Matti Latva-aho , Choong-Seong Hong

We consider the problem of predicting cellular network performance (signal maps) from measurements collected by several mobile devices. We formulate the problem within the online federated learning framework: (i) federated learning (FL)…

Machine Learning · Computer Science 2024-01-09 Evita Bakopoulou , Mengwei Yang , Jiang Zhang , Konstantinos Psounis , Athina Markopoulou

When dedicated positioning systems, such as GPS, are unavailable, a mobile device has no choice but to fall back on its cellular network for localization. Due to random variations in the channel conditions to its surrounding base stations…

Information Theory · Computer Science 2015-10-27 Javier Schloemann , Harpreet S. Dhillon , R. Michael Buehrer

The real-time segmentation of drivable areas plays a vital role in accomplishing autonomous perception in cars. Recently there have been some rapid strides in the development of image segmentation models using deep learning. However, most…

Computer Vision and Pattern Recognition · Computer Science 2023-05-05 Srinjoy Bhuiya , Ayushman Kumar , Sankalok Sen

To successfully build a deep learning model, it will need a large amount of labeled data. However, labeled data are hard to collect in many use cases. To tackle this problem, a bunch of data augmentation methods have been introduced…

Machine Learning · Computer Science 2020-06-01 Chia-Ying Tsao , Jun-Hao Chen , Samuel Yen-Chi Chen , Yun-Cheng Tsai

Multi-label learning deals with the problem that each instance is associated with multiple labels simultaneously. Most of the existing approaches aim to improve the performance of multi-label learning by exploiting label correlations.…

Machine Learning · Computer Science 2022-01-19 Senlin Shu , Fengmao Lv , Yan Yan , Li Li , Shuo He , Jun He

In this paper, we mathematically characterize the improvement in device localizability achieved by allowing collaboration among devices. Depending on the detection sensitivity of the receivers in the devices, it is not unusual for a device…

Information Theory · Computer Science 2015-07-22 Javier Schloemann , Harpreet S. Dhillon , R. Michael Buehrer

Deep learning has recently been applied to automatically classify the modulation categories of received radio signals without manual experience. However, training deep learning models requires massive volume of data. An insufficient…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Liang Huang , Weijian Pan , You Zhang , LiPing Qian , Nan Gao , Yuan Wu

This paper deals with the problem of localization in a cellular network in a dense urban scenario. Global Navigation Satellite Systems (GNSS) typically perform poorly in urban environments, where the likelihood of line-of-sight conditions…

Machine Learning · Computer Science 2022-02-04 Çağkan Yapar , Ron Levie , Gitta Kutyniok , Giuseppe Caire

We propose a data-driven approach for large-scale cellular network optimization, using a production cellular network in London as a case study and employing Sionna ray tracing for site-specific channel propagation modeling. We optimize base…

Information Theory · Computer Science 2025-04-10 Mohamed Benzaghta , Giovanni Geraci , David López-Pérez , Alvaro Valcarce

An accurate room localization system is a powerful tool for providing location-based services. Considering that people spend most of their time indoors, indoor localization systems are becoming increasingly important in designing smart…

Networking and Internet Architecture · Computer Science 2018-04-25 Jose Luis Carrera V. , Zhongliang Zhao , Torsten Braun

Deep artificial neural networks require a large corpus of training data in order to effectively learn, where collection of such training data is often expensive and laborious. Data augmentation overcomes this issue by artificially inflating…

Machine Learning · Computer Science 2017-08-22 Luke Taylor , Geoff Nitschke

Outdoor positioning systems based on the Global Navigation Satellite System have several shortcomings that have deemed their use for indoor positioning impractical. Location fingerprinting, which utilizes machine learning, has emerged as a…

Machine Learning · Computer Science 2022-05-31 Fahad Alhomayani , Mohammad H. Mahoor