Search results for "Network"

On Attacking Future 5G Networks with Adversarial Examples : Survey

2022

The introduction of 5G technology along with the exponential growth in connected devices is expected to cause a challenge for the efficient and reliable network resource allocation. Network providers are now required to dynamically create and deploy multiple services which function under various requirements in different vertical sectors while operating on top of the same physical infrastructure. The recent progress in artificial intelligence and machine learning is theorized to be a potential answer to the arising resource allocation challenges. It is therefore expected that future generation mobile networks will heavily depend on its artificial intelligence components which may result in …

Computational Modeling of Human Visual Function using Psychophysics, Deep Neural Networks, and Information Theory

2023

Visual perception is a key to unlocking the secrets of brain functions because most of the information is processed through the early visual system and then transmitted to the high-level cognitive perception brain regions. The brain functions as a self-organizing, bio-dynamic, and chaotic system that receives outside information and then decomposes it into pieces of information that can be processed efficiently and independently. The work connects natural image statistics, psychophysics, deep neural networks, and information theory to perceptual vision systems to explore how vision processes information from the outside world and how the information coupled drives functional connectivity be…

DEFAULT MODE NETWORK AND WORKING MEMORY NETWORK DURING AN FMRI WORKING MEMORY TASK: DIFFERENCES AND CORRELATIONS WITH BEHAVIORAL PERFORMANCE

2013

INTRODUCTION Previous neuroimaging studies have shown that working memory load has marked effects on regional neural activation[1-5]. However, the mechanism through which working memory load modulates brain connectivity is still unclear. During a working memory task, two of the most involved networks are the default mode network (DMN) and the working memory network (WMN)[6-7]: the selective focus on these networks can be useful in better understanding the load effects. Spatial independent component analysis (ICA)[8] has becomes a reliable technique to investigate the networks involved during an fMRI task, as it extracts spatiotemporal patterns of neural activity maximizing spatial independe…

Temporal Denoising of Kinect Depth Data

2012

The release of the Microsoft Kinect has attracted the attention of researchers in a variety of computer science domains. Even though this device is still relatively new, its recent applications have shown some promising results in terms of replacing current conventional methods like the stereo-camera for robotics navigation, multi-camera system for motion detection and laser scanner for 3D reconstruction. While most work around the Kinect is on how to take full advantage of its capabilities, so far only a few studies have been carried out on the limitations of this device and fewer that provide solutions to enhance the precision of its measurements. In this paper, we review and analyse curr…

Wireless Sensor Network Operating System Design Rules Based on Real-World Deployment Survey

2013

Wireless sensor networks (WSNs) have been a widely researched field since the beginning of the 21st century. The field is already maturing, and TinyOS has established itself as the de facto standard WSN Operating System (OS). However, the WSN researcher community is still active in building more flexible, efficient and user-friendly WSN operating systems. Often, WSN OS design is based either on practical requirements of a particular research project or research group's needs or on theoretical assumptions spread in the WSN community. The goal of this paper is to propose WSN OS design rules that are based on a thorough survey of 40 WSN deployments. The survey unveils trends of WSN applic…

Pienyrittäjän interaktiivinen toimintakyky : narratiivinen tulkinta suomalaisten pienyrittäjien toiminnasta sosiaalisissa liiketoimintaverkostoissa E…

2015

Time-Frequency Characteristics of In-Home Radio Channels Influenced by Activities of the Home Occupant

2019

While aging is a serious global concern, in-home healthcare monitoring solutions are limited to context-aware systems and wearable sensors, which may easily be forgotten or ignored for privacy and comfort reasons. An emerging non-wearable fall detection approach is based on processing radio waves reflected off the body, who has no active interaction with the system. This paper reports on an indoor radio channel measurement campaign at 5.9 GHz, which has been conducted to study the impact of fall incidents and some daily life activities on the temporal and spectral properties of the indoor channel under both line-of-sight (LOS) and obstructed-LOS (OLOS) propagation conditions. The time-frequ…

“She Offered Me a Place and a Future”: Change is an Event of Becoming Through Movement in Ethical Time and Space

2014

Published version of an article in the journal: Contemporary Family Therapy. Also available from the publisher at: http://dx.doi.org/10.1007/s10591-014-9317-3 Within mental health research, the promise of exploring the lived experience of those affected is increasingly acknowledged. This research points to the significance of social aspects. The present study is part of a series of qualitative studies exploring network-oriented practices in southern Norway. The aim of this study was to explore the social dynamics of change related to adolescents in psychosocial crises. From the perspective of lived experience the study focused changes related to the adolescents’ ways of existing in various …

Shared Sequences from Network Therapy with Adolescents Only the therapist Finds Meaningful

2016

As part of a larger research project, this qualitative study explores sequences from six network therapy sessions. We focused on these sequences because only the therapists found them to be meaningful; the other participants did not think they were significant. The aim of this study was to explore the therapists’ inner dialogues, the degree to which these inner dialogues consist of professional and personal voices, and what this means for the dialogical process. We used a multi-perspective methodology that combines video recordings of network therapy sessions, participants’ interviews, and text analysis. We found that the outer dialogue and the therapists’ inner dialogues are strongly relat…

Dialogicality in making sense of online collaborative interaction : a conceptual perspective

2021

In higher education, learning activities increasingly take place in online collaborative groups. In this conceptual paper, we explore online collaborative interaction from the perspective of dialogicality. We aim to reconceptualize the notion of “productive interaction” and the typical focus of its research by turning attention to the dialogic features of collaborative interaction, especially the notions of alterity, dialogic attitude, and dialogic orientation. In relation to this, we offer a contextual perspective on collaborative interaction. Relying on data from an online university course, we conceptually analyze specified components of dialogicality. This article illustrates and explor…