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Topic Review
Wireless Sensor System
With the generation of tremendous data, humans are experiencing a rapid development period. The large amount of data is produced from billions of wireless sensor nodes. A wireless sensor node is a sensing device capable of signal processing and data communication. A collection of those sensor nodes in a particular combination forms a wireless sensor network (WSN). Each wireless sensor node typically performs three main functions—sensing, processing, transceiving data, along with optionally issuing commands to actuators.
  • 1.2K
  • 18 Feb 2021
Topic Review
Wi-Fi Assisted Indoor Positioning
As the location-based service (LBS) plays an increasingly important role in real life, the topic of positioning attracts more and more attention. Under different environments and principles, researchers have proposed a series of positioning schemes and implemented many positioning systems.
  • 119
  • 07 Oct 2023
Topic Review
Wi-Fi
Indoor positioning poses a number of challenges as several effects, such as signal attenuation, signal fluctuations, interference, and multipath occur in signal propagation. The severity depends on the method and technology adopted to perform user localization. Wi-Fi is a popular method because of its ubiquity with already available public and private infrastructure in many environments and the ability for mobile clients, such as smartphones, to receive these signals.
  • 875
  • 14 Jan 2021
Topic Review
WebP
WebP is an image file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, as well as animation and alpha transparency. Google announced the WebP format in September 2010, and released the first stable version of its supporting library in April 2018.
  • 1.6K
  • 26 Oct 2022
Topic Review
VR and Natural Heritage
Caves can be considered as features of the landscape that have been formatted through a long period and are signs of the past climatological conditions, of prehistoric animal and human inhabitation, and provide habitat for species. The sustainability and protection of cave heritage have been recently discussed mainly because over-tourism has been proven to have negative side effects on the preservation of the heritage site. Technology today has provided widely adopted inexpensive technical means to support immersive visiting experiences to sites of heritage interest that could support their valorization and sustainability in forms more friendly to the site. An alternative visiting approach is explored through a use case applied to the Alistrati cave near Serres, Greece, where a VR tour guide can support immersive visiting experiences to the heritage site. By employing means of digital preservation of heritage sites the VR solution aspires to offer immersive close to reality engaging visiting experiences.
  • 336
  • 12 May 2022
Topic Review
Virtual Assistants in Industry 4.0
Information and Communication Technologies are driving the improvement of industrial processes. According to the Industry 4.0 (I4.0) paradigm, digital systems provide real-time information to humans and machines, increasing flexibility and efficiency in production environments. Based on the I4.0 Design Principles concept, Virtual Assistants can play a vital role in processing production data and offer contextualized and real-time information to the workers in the production environment. 
  • 175
  • 17 Oct 2023
Topic Review
Vice News
Vice News (stylized as VICE News) is Vice Media's current affairs channel, producing daily documentary essays and video through its website and YouTube channel. It promotes itself on its coverage of "under-reported stories". Vice News was created in December 2013 and is based in New York City , though it has bureaus worldwide.
  • 735
  • 14 Oct 2022
Topic Review
VGG-C Transform Model to Predict Alzheimer’s Disease
Alzheimer’s disease (AD) is a chronic neurobiological brain disorder that continuously kills brain cells and causes deficits in memory and thinking skills, eventually accelerating the loss of the ability to perform even the most basic tasks. Early detection and automatic AD classification have emerged, resulting in large-scale multimodal neuroimaging results. Other methods of AD research include MRI, positron emission tomography (PET), and genotype sequencing results. Analyzing different modalities to make a decision is time consuming.
  • 295
  • 09 Sep 2022
Topic Review
Vehicle Forensics
Traffic accident investigation has been used to reconstruct the cause and condition of the accident by using images and driving record data that introduce IT technology, and to analyze both sides of the accident, skid marks, and vehicle damage to identify the perpetrators and victims. However, level 3 self-driving vehicles are the most important factor in determining the cause and imputation of the accident by the driver or manufacturer with control information at the time of the accident. It is also developing into a network and connected vehicle with various restrictions such as the burden of the price of sensors equipped with self-driving cars and climate and rapidly changing road traffic information. In addition, network and connected vehicle driving data are stored on the outside, or various devices and sensors are installed to store information on the outside for convenience in operation, and efforts to enact laws are continuing.
  • 836
  • 13 Feb 2021
Topic Review
Using Homomorphic Encryption for Smart Metering Systems
Smart metering systems (SMSs) have been widely used by industrial users and residential customers for purposes such as real-time tracking, outage notification, quality monitoring, load forecasting, etc. Protecting data privacy for SMSs that considers trust boundaries (TBs) and computability using real-world data sets while providing privacy guarantees. The proposed framework uses homomorphic encryption (HE) as a primitive for security. HE can provide strong protection based on cryptography and data processing on encrypted data without first decrypting it.
  • 257
  • 31 May 2023
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