Viser treff 1-20 av 1283

    • Online Topology Identification From Vector Autoregressive Time Series 

      Zaman, Bakht; Lopez Ramos, Luis Miguel; Romero, Daniel; Beferull-Lozano, Baltasar (Peer reviewed; Journal article, 2020)
      Causality graphs are routinely estimated in social sciences, natural sciences, and engineering due to their capacity to efficiently represent the spatiotemporal structure of multi-variate data sets in a format amenable for ...
    • Data driven approach for the management of wind and solar energy integrated electrical distribution network with high penetration of electric vehicles 

      Mathew, Manuel Sathyajith; Kolhe, Mohan Lal; Kandukuri, Surya Teja; Omlin, Christian Walter Peter (Peer reviewed; Journal article, 2023)
      With the increased penetration of fluctuating renewables and growing population of contemporary loads such as electric vehicles, the uncertainties in the generation and demand in the electric power grids are increasing. ...
    • Online Hyperparameter Search Interleaved with Proximal Parameter Updates 

      Lopez-Ramos, Luis M.; Beferull-Lozano, Baltasar (Chapter, 2020)
      There is a clear need for efficient hyperparameter optimization (HO) algorithms for statistical learning, since commonly applied search methods (such as grid search with N-fold cross-validation) are inefficient and/or ...
    • Accurate Graph Filtering in Wireless Sensor Networks 

      Ben Saad, Leila; Beferull-Lozano, Baltasar (Peer reviewed; Journal article, 2020)
      Wireless sensor networks (WSNs) are considered as a major technology enabling the Internet-of-Things (IoT) paradigm. The recent emerging graph signal processing field can also contribute to enabling the IoT by providing ...
    • Enabling Soft Frequency Reuse and Stienen's Cell Partition in Two-Tier Heterogeneous Networks: Cell Deployment and Coverage Analysis 

      Abbas, Ziaul Haq; Haroon, Muhammad Sajid; Muhammad, Fazal; Abbas, Ghulam; Li, Frank Young (Peer reviewed; Journal article, 2020)
      Heterogeneous cellular networks (HetNets) are one of the key enabling technologies for fifth generation (5 G) networks. In HetNets, the use of small base stations (SBSs) inside the coverage area of a macro base station ...
    • Achieving Ultra Energy-efficient and Collision-free Data Collection in Wake-up Radio Enabled mIoT 

      Hsu, Chia-An; Li, Frank Young; Chen, Chiuyuan; Tseng, Yu-Chee (Chapter, 2020)
      To achieve ultra-low energy consumption and decade-long battery lifetime for Internet of things (IoT) networks, wake-up radio (WuR) appears as an eminent solution. While keeping devices in deep sleep for most of the time, ...
    • Fast Graph Filters for Decentralized Subspace Projection 

      Romero, Daniel; Ghari, Siavash Mollaebrahim; Beferull-Lozano, Baltasar; Marco, Cesar Asensio (Peer reviewed; Journal article, 2020)
      A number of inference problems with sensor networks involve projecting a measured signal onto a given subspace. In existing decentralized approaches, sensors communicate with their local neighbors to obtain a sequence of ...
    • Explainable Tsetlin Machine Framework for Fake News Detection with Credibility Score Assessment 

      Granmo, Ole-Christoffer; Jiao, Lei (Journal article, 2022)
      The proliferation of fake news, i.e., news intentionally spread for misinformation, poses a threat to individuals and society. Despite various fact-checking websites such as PolitiFact, robust detection techniques are ...
    • Understanding Spending Behavior: Recurrent Neural Network Explanation and Interpretation 

      Maree, Charl; Omlin, Christian Walter Peter (Chapter, 2022)
      Micro-segmentation of customers in the finance sector is a nontrivial task and has been an atypical omission from recent scientific literature. Where traditional segmentation classifies customers based on coarse features ...
    • Outage Probability Analysis of User-Centric SBS-Based HCNets under Hybrid Rician/Rayleigh Fading 

      Abbas, Ziaul; Ullah, Arif; Abbas, Ghulam; Muhammad, Fazal; Li, Frank Yong (Peer reviewed; Journal article, 2020)
      To model dense user equipment (UE) distribution in heterogeneous cellular networks (HCNets), the Poisson cluster process (PCP) has emerged as a promising tool. In user-centric HCNets where UEs are distributed according to ...
    • Improving Energy Efficiency and Response Time of an Offshore Winch Drive with Digital Displacement Motors 

      Farsakoglou, Thomas; Pedersen, Henrik C.; Ebbesen, Morten Kjeld; Andersen, Torben O. (Peer reviewed; Journal article, 2023)
      Offshore winch drives require high energy efficiency and control precision, making digital displacement motors an attractive solution due to their high efficiency and potential controllability. However, the response time ...
    • Scalable and Privacy-Aware Online Learning of Nonlinear Structural Equation Models 

      Money, Rohan Thekkemarickal; Krishnan, Joshin Parakkulangarayil; Beferull-Lozano, Baltasar; Isufi, Elvin (Peer reviewed; Journal article, 2023)
      An online topology estimation algorithm for nonlinear structural equation models (SEM) is proposed in this paper, addressing the nonlinearity and the non-stationarity of real-world systems. The nonlinearity is modeled using ...
    • Human Motion Synthesis Using Trigonometric Splines 

      Zhakatayev, Altay; Avazov, Nurilla; Rogovchenko, Yuriy; Pätzold, Matthias Uwe (Peer reviewed; Journal article, 2023)
      In this work, we present a simple framework to synthesize human motion. Our main goal is to propose a methodology tailored for inexperienced users to initiate their research in human motion simulation and human motion ...
    • Deep Crowd Anomaly Detection by Fusing Reconstruction and Prediction Networks 

      Sharif, Md Haidar; Lei, Jiao; Omlin, Christian Walter Peter (Peer reviewed; Journal article, 2023)
      Abnormal event detection is one of the most challenging tasks in computer vision. Many existing deep anomaly detection models are based on reconstruction errors, where the training phase is performed using only videos of ...
    • Active Network Management with Decision Transformer 

      Sevland, Ruben; Svensli Åsvestad, Vegard (Master thesis, 2024)
      This thesis analyzes the implementation of a DT model for ANM in power grids, focusing on active network management with intermittent renewable energy sources. Considering the increasing implementation of renewable sources ...
    • Active network management with decision transformer 

      Åsvestad, Vegard; Sevland, Ruben (Master thesis, 2024)
      This thesis analyzes the implementation of a DT model for ANM in power grids, focusing on active network management with intermittent renewable energy sources. Considering the increasing implementation of renewable sources ...
    • Biomolecular and quantum algorithms for the dominating set problem in arbitrary networks 

      Wong, Renata; Chang, Weng-Long; Chung, Wen-Yu; Vasilakos, Athanasios (Peer reviewed; Journal article, 2023)
      A dominating set of a graph G=(V,E) is a subset U of its vertices V, such that any vertex of G is either in U, or has a neighbor in U. The dominating-set problem is to find a minimum dominating set in G. Dominating sets ...
    • Towards intelligent and trustworthy task assignments for 5G-enabled industrial communication systems 

      Huang, Mingfeng; Liu, Anfeng; Xiong, Neal N.; Vasilakos, Athanasios (Peer reviewed; Journal article, 2023)
      With the unprecedented prevalence of IIoT and 5G technology, various applications supported by industrial communication systems have generated exponentially increased processing tasks, which makes task assignment inefficient ...
    • Performance Analysis of Spectrum Sharing Radar in Multipath Environment 

      Gunnery, Srinath; Bethi, Pardhasaradhi; Mahipathi, Ashoka Chakravarthi; H, Prashantha Kumar; Pathipati, Srihari; Cenkeramaddi, Linga Reddy (Peer reviewed; Journal article, 2023)
      Radar based sensing and communication systems sharing a common spectrum have become a potential research problem in recent years due to spectrum scarcity. The spectrum sharing radar (SSR) is a new technology that uses the ...
    • Autonomous UAV Path Planning Using Modified PSO for UAV-Assisted Wireless Networks 

      Sonny, Amala; Yeduri, Sreenivasa Reddy; Cenkeramaddi, Linga Reddy (Peer reviewed; Journal article, 2023)
      Recently, unmanned aerial vehicles (UAVs) have attained considerable attention for providing reliable and cost-effective communication due to the flexibility of deployment and line of sight (LoS) propagation. Efficient UAV ...